Soil Science Society Research Articles

Thanks to Our Reviewers

Soil Science Society of America JournalVolume 82, Issue 2 p. 544-546 Other Item Thanks to Our Reviewers First published: 22 March 2018 https://doi.org/10.2136/sssaj2017.0205thanksrev All rights reserved. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume82, Issue2March-April 2018Pages 544-546 RelatedInformation

Report on 42nd Congress of Italian Soil Science Society (SISS)

Report on 42nd Congress of Italian Soil Science Society (SISS)

Gathering Blue Carbon Fingerprints

Gathering Blue Carbon Fingerprints

Microbial and organic matter patterns in a prescribed burned and thinned managed forest ecosystem

AbstractPrescribed burning and thinning were implemented in an Alabama forest (Bankhead National Forest) as a management strategy to control pest and disease outbreaks and also to increase forest productivity. However, using fire as a control mechanism in this forest may alter soil nutrient cycling, soil organic matter (SOM), and soil microbial populations. There is the need for continuous research on forest ecosystems to bridge knowledge gaps in our understanding of SOM transformations and microbial processes in a repeatedly burned forest ecosystems. The objectives of this study were to assess and document the impact of prescribed burning and thinning on soil labile organic matter fractions, microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN), potential carbon mineralized (PCM), enzymatic activity, and energy (ATP) potentials. Labile organic carbon was isolated using the density method, whereas enzyme activities were determined as described in Bottomley et al. (Methods of soil analysis: part 2—Microbiological and biochemical properties, Madison, Wisconsin, USA: Soil Science Society of America, 1994). Microbial biomass C and N (MBC and MBN) were determined using the fumigation‐incubation method. Treatment applications had some effects on MBC and MBN although these effects were not statistically significant (P ≤ 0.05). Light fraction carbon (LFC) and light fraction nitrogen (LFN) were significantly (P ≤ 0.05) affected by treatments. Irrespective of treatment, xylanase activity was the highest (3244 ± 327–5223 ± 567 μmol/g 24 h−1), whereas amylase activity was the lowest (12.57 ± 8.9–116 ± 42.8 μmol/g 24 h−1). Correlation analysis revealed that amylase, β‐glucosidase, and NAGase correlated with particulate organic carbon (POC), particulate organic nitrogen (PON), and LFC, whereas cellulase, xylanase, and invertase had no correlation with the labile organic matter fractions. Compared to the referenced treatment plot, burned and thinned plots had reduced MBC, MBN, and increased PCM although this was not statistically significant. Although enzyme activities within plots were significant, no significant enzyme activities between plots were observed except with amylase. The lack of statistical significance on microbial activities, MBC, and MBN support our hypothesis that prescribed burning and thinning temporarily affected microbial indices, and these parameters are expected to return to pretreatment levels after a period of time.

Timing of Manure Injection and Nitrification Inhibitors Impacts on Nitrous Oxide Emissions and Nitrogen Transformations in a Barley Crop

Soil Science Society of America JournalVolume 81, Issue 6 p. 1595-1605 Nutrient Management & Soil & Plant Analysis Timing of Manure Injection and Nitrification Inhibitors Impacts on Nitrous Oxide Emissions and Nitrogen Transformations in a Barley Crop Sisi Lin, Sisi Lin Dep. of Renewable Resources, Univ. of Alberta, Edmonton, AB, T6G2R3 CanadaSearch for more papers by this authorGuillermo Hernandez-Ramirez, Corresponding Author Guillermo Hernandez-Ramirez ghernand@ualberta.ca Dep. of Renewable Resources, Univ. of Alberta, Edmonton, AB, T6G2R3 CanadaCorresponding author (ghernand@ualberta.ca).Search for more papers by this authorLen Kryzanowski, Len Kryzanowski Alberta Agriculture and Forestry, Edmonton, AB, T6H5T6 CanadaSearch for more papers by this authorTrevor Wallace, Trevor Wallace Alberta Agriculture and Forestry, Edmonton, AB, T6H5T6 CanadaSearch for more papers by this authorRobert Grant, Robert Grant Dep. of Renewable Resources, Univ. of Alberta, Edmonton, AB, T6G2R3 CanadaSearch for more papers by this authorRory Degenhardt, Rory Degenhardt Dow AgroSciences, Calgary, AB, T2P1M4 CanadaSearch for more papers by this authorNils Berger, Nils Berger Eurochem Agro, Mannheim, GermanySearch for more papers by this authorGermar Lohstraeter, Germar Lohstraeter Alberta Agriculture and Forestry, Edmonton, AB, T6H5T6 CanadaSearch for more papers by this authorLeigh-Anne Powers, Leigh-Anne Powers Alberta Agriculture and Forestry, Edmonton, AB, T6H5T6 CanadaSearch for more papers by this author Sisi Lin, Sisi Lin Dep. of Renewable Resources, Univ. of Alberta, Edmonton, AB, T6G2R3 CanadaSearch for more papers by this authorGuillermo Hernandez-Ramirez, Corresponding Author Guillermo Hernandez-Ramirez ghernand@ualberta.ca Dep. of Renewable Resources, Univ. of Alberta, Edmonton, AB, T6G2R3 CanadaCorresponding author (ghernand@ualberta.ca).Search for more papers by this authorLen Kryzanowski, Len Kryzanowski Alberta Agriculture and Forestry, Edmonton, AB, T6H5T6 CanadaSearch for more papers by this authorTrevor Wallace, Trevor Wallace Alberta Agriculture and Forestry, Edmonton, AB, T6H5T6 CanadaSearch for more papers by this authorRobert Grant, Robert Grant Dep. of Renewable Resources, Univ. of Alberta, Edmonton, AB, T6G2R3 CanadaSearch for more papers by this authorRory Degenhardt, Rory Degenhardt Dow AgroSciences, Calgary, AB, T2P1M4 CanadaSearch for more papers by this authorNils Berger, Nils Berger Eurochem Agro, Mannheim, GermanySearch for more papers by this authorGermar Lohstraeter, Germar Lohstraeter Alberta Agriculture and Forestry, Edmonton, AB, T6H5T6 CanadaSearch for more papers by this authorLeigh-Anne Powers, Leigh-Anne Powers Alberta Agriculture and Forestry, Edmonton, AB, T6H5T6 CanadaSearch for more papers by this author First published: 30 November 2017 https://doi.org/10.2136/sssaj2017.03.0093Citations: 27 All Rights reserved. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume81, Issue6November-December 2017Pages 1595-1605 RelatedInformation

Manipulating rainfall to study symptom expression of <i>Botrytis cinerea</i> infection in wine grapes

Manipulating rainfall to study symptom expression of <i>Botrytis cinerea</i> infection in wine grapes

Preface to the special issue for the 8th International Symposium on Forest Soils: Linking Soil Processes to Forest Productivity and Water Protection under Global Change

The 8th International Symposium on Forest Soils: Linking Soil Processes to Forest Productivity and Water Protection under Global Change was held during 24–28 October 2015 on the campus of Fujian Normal University in Fuzhou, China. The Symposium was organized for two principal reasons: first, to celebrate the 2015 International Year of Soils; and second, to address a crucial gap in the forest soils and forest management literature in a concerted effort. There is a pressing need for a “state-of-the-art” publication on the nature and research needs of integrating soil information and expertise into the management of Chinese forest resources. Especially in South China, most forests are located in the mountains and hills. Soils of the region are perceived to be fragile and easily damaged. Relatively few studies have been published in the international literature on forests and forest soils of southern China. Thus, our intention was to emphasize regionally available datasets, to incorporate the pertinent information from the world literature, and to place the issues facing forest scientists in southern China in an international context. The 8th International Symposium on Forest Soils continues the series of International Symposia sponsored by the International Union of Soil Science (IUSS) (previously International Society of Soil Science or ISSS) and other related agencies. The 3rd Symposium of this series was held in Balikpapan, Indonesia, 29 October–3 November 1995, with the 4th held in Vila Real, Portugal, 18–22 September 2000. The 5th, 6th, and 7th symposia were held in Bordeaux, France, 15–18 September 2004; in Noosa, Queensland, Australia, 19–23 August 2007; and in Shenyang, China, 17–20 September 2013, respectively. Next, the Forest Soils Working Group of IUSS will co-sponsor the joint North American Forest Soils Conference/the 9th International Symposium on Forest Soils, 10–16 June 2018, in Quebec City, Quebec, Canada. The Quebec symposium will be co-sponsored by the Soil Science Society of America (SSSA), the Canadian Society of Soil Science (CSSS), and the International Union of Forest Research Organizations (IUFRO). In addition, the Forest Soils Working Group, currently convened by Professor Zhihong Xu of Griffith University, Nathan, Brisbane, Australia, and Professor Chris Johnson of Syracuse University, USA, has also hosted both oral and poster sessions on forest soils during each IUSS (ISSS) World Congress of Soil Science since 2002.

Presidents of the Soil Science Society of America

Soil Science Society of America JournalVolume 81, Issue 3 p. 659-671 Reports 2016 Presidents of the Soil Science Society of America First published: 30 June 2017 https://doi.org/10.2136/sssaj2016.0107pres_and_yearly_reportsCitations: 1 All rights reserved. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume81, Issue3May-June 2017Pages 659-671 RelatedInformation

SSSA Yearly Reports

Soil Science Society of America JournalVolume 81, Issue 3 p. 659a-659a Other Item SSSA Yearly Reports First published: 30 June 2017 https://doi.org/10.2136/sssaj2016.0107pres_and_yearly_reportsaRead the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume81, Issue3May-June 2017Pages 659a-659a RelatedInformation

‘Dig It!’ Finds Its Final Home

Above: The exterior of GROW, a gallery of the Saint Louis Science Center where the Dig It! exhibit will be incorporated. Inset: Dig It! has inspired countless young people since it first opened in 2008 at the Smithsonian to understand soils as a natural resource that is essential to all life. Dig It! The Secrets of Soil will settle down in St. Louis, MO, opening 22 Apr. 2017. This final home for Dig It! at the Saint Louis Science Center comes after years of traveling around the country, informing the general public about soil science. The Smithsonian National Museum of Natural History developed the display in 2006, and SSSA was its founding sponsor. Several SSSA members served on the developing committee and published articles in the Soil Science Society of America Journal about the exhibit.1 Ross Braun, retired from USDA-NRCS, was a key person to get Dig It! into the Saint Louis Science Center. Braun was one of the original docents for Dig It! during its 19-month stay in Washington, DC. “I'd go there on Friday afternoons, sometimes weekends, and teach people about soil science with an activity cart,” Braun recalls. Even after Dig It! left the Smithsonian, Braun continued these same activities for a year because the cart was so popular. Only his retirement and subsequent move back to Missouri could stop his volunteering at the Smithsonian! When Braun was settled in Missouri, he started looking for a way to volunteer. In addition to speaking at master gardener and naturalist groups, he joined the Saint Louis Science Center's advisory committee for its GROW exhibit, which opened in June 2016. GROW is a 1-acre, permanent exhibit that tells the story of food, from farm to fork. “At the time, I was hoping that Dig It! could be part of the GROW exhibit, but getting GROW completed and running was such a large endeavor itself, it would not have worked,” Braun says. But now that the center has experience with GROW, Braun saw an opportunity to meld the two exhibits. SSSA's CEO Ellen Bergfeld saw that opportunity, too. She had been talking with the Science Center about Dig It! for several years. “The GROW exhibit educates people about food production and the land,” Bergfeld says. “The Saint Louis Science Center was established as a Smithsonian affiliate museum in 2016 and does an excellent job of attracting large and diverse audiences. The fit with the GROW gallery is phenomenal. Being in the center of the United States—in the ‘heartland’ so to speak—also makes a lot of sense for Dig It!” Saint Louis Science Center executives concurred. Part of Dig It! will be integrated into the GROW exhibit itself: the soil monoliths and two dioramas, according to Cindy Encarnación, Senior Director of Science. “Educational content about soil fits very well into our GROW exhibit. We cover topics from the seeds that are planted in the ground, to the food we enjoy in our lunchbox or plates. GROW is about food, plant biology, and farming—so many topics that connect with soil science well.” Maxine Levin and a team of NRCS soil scientists and Saint Louis Science Center professionals worked on reconditioning the soil monoliths in March 2017. Ross Braun, one of the key people to bring Dig It! to St. Louis, is pictured in the green shirt. “When we introduce Dig It!, the soil monoliths (a row of “All-American Soils,” as they're called) will be highlighted in our GROW Pavilion,” Encarnación says. “The ‘At Home in the World of Soil’ and ‘Underneath It All’ dioramas also fit and will become permanent parts of GROW.” Maxine Levin, who has been reconditioning the soil monoliths from museum to museum, led a team of soil scientists to refurbish the monoliths for GROW in March. “It was terrific and exciting to open up the crates with the monoliths and find them in really good shape,” Levin says. “Considering they were in storage for a year and a half and had two cross-country moves to get to St. Louis, that's amazing! The St. Louis location will be stunning in the pavilion in the GROW exhibition. The reconditioning went very fast this time with our large and enthusiastic crew of volunteers from NRCS working with the Saint Louis Science Center professionals. The collaboration doesn't get better than this between SSSA, NRCS, and the center. Congratulations to Ross Braun …whose persistence and coordination made the new location and venue a reality.” In a few months, the Science Center plans to have a reception to celebrate the integration of Dig It! into the GROW exhibit. Other parts of Dig It! will be placed in their Ecology and Environment gallery and the Life Sciences Lab.

Seasonal fate of phosphorus in vineyard soils

Backdrop: Vineyard landscape. Inset: Volcanic (obsidian) soil. Growing premium wine grapes requires the right soil and climate. An ideal combination occurs in parts of California where the majority of the wine grapes in the United States are produced. As an agricultural system, wine grapes are a specialty crop, and there is limited research on the soils and nutrient dynamics that occur in vineyards. “There's a huge need for a better understanding of nutrient cycling and soil fertility in vineyards,” says Stewart Wilson, lead author of a recent Soil Science Society of America Journal article titled, “Seasonal Phosphorus Dynamics in a Volcanic Soil of Northern California.”1 According to Wilson, a Ph.D. candidate at the University of California–Davis (UC-Davis), research presented in the article was initiated when growers in Lake County, CA, approached scientists at UC-Davis about fertilizer use in vineyards. The study site is located on volcanic soils, which are highly weathered. “Volcanic and weathered soils are largely thought to be P fixing,” Wilson says. This is due to high-surface-area minerals and iron (Fe) and aluminum (Al) compounds that readily bind phosphate. To compensate for this, growers often fertilizer with P at levels that are well above plant requirements. Over-applying fertilizer could contribute to P runoff and pollution of local watersheds. For growers in Lake County, which has the second largest freshwater lake in the state, avoiding contributing to P runoff is important. Using organic materials as part of a fertilization regime is one way that wine growers may be able to reduce P inputs and subsequent runoff, but there is limited research on the topic. In this study, the researchers tested three different fertilizer applications. Fertilizer treatments were applied in January 2012 and included: triple superphosphate (TSP), composted steer manure, and a mix of the two. The applied phosphorus levels were equivalent across the three treatments (39 kg/ha). The researchers also established control plots to monitor background P levels in unamended vineyard soils. To evaluate the seasonal fluctuations of P, soil samples were taken in April (bud break), August (verasion, or grape ripening), and November (postharvest). The researchers measured P sorption and fractionated P. Fractionated P data were used to gauge phosphate derived from both fertilizer inputs and pedogenesis. This provides a better idea of how plant-available P changes throughout the season and could be used to improve timing and rate of fertilizer application. They also measured factors known to influence P dynamics, including microbial biomass carbon (MBC), dissolved organic carbon (DOC), and pH. Wilson discussed the two main findings from this work. The first is the effectiveness of compost fertilizer, and the second is how soil parent material can influence P dynamics. All fertilizer treatments increased labile inorganic phosphorus (Pi), Fe/Al-Pi, and total P. The authors report that for both chemical and compost fertilizers, there was high Pi availability. But when looking at additional soil characteristics, Wilson says, “Compost performs as well or better than chemical fertilizer, especially in these types of soil. [Compost] increased DOC, MBC, pH, and reduced P sorption compared with chemical treatments alone.” The authors attribute this to the addition of organic carbon in the compost, which impacts the biogeochemical cycle and improves overall soil quality, unlike chemical-based fertilizers. Showing the effectiveness of compost as a vineyard fertilizer supports some of Wilson's other research. “In another companion study in the region, in a much more strongly P-fixing soil, compost improved vine yield, berry weight, and pruning weights and increased soil C, N, and P, improving the performance of severely under-performing vines where chemical fertilizers alone had failed.” The findings about parent material were contradictory to the initial expectations of the authors. Soil at the site was weathered, and “it was known to be P deficient,” Wilson says. The assumption was that added P would get fixed, but “because this parent material was derived from rhyolite, which is a very low iron parent material … it responded well to the addition of phosphorus.” This resulted in high amounts of the applied P fertilizer being available to plants and suggests that initial parent material composition has a more significant influence on P dynamics than previously thought. Understanding these P dynamics in vineyard soils will enable vineyards to adjust fertilization for optimal grape production while limiting P runoff. And, given the limited research on nutrient cycling in vineyards, Wilson says, “I think [this] research would apply in the Pacific Northwest where you have a lot of volcanics and in other regions in California and Oregon with weathered soils in volcanic and meta-volcanic parent materials” as well as international vineyards that have similar soil types.

Analysis of Agronomic Categories in Different Soil Texture Classification Systems

Different soil texture classification systems are used in Poland. The system most widely used in agriculture is named after Polish Soil Science Society (PSSS) and is described in the soil classification norm BN-78/9180-11 (BN1978 standard). The last edition of soil classification system and soil texture classes published by PSSS in 2008 (PSSS 2008 classification) is different from BN1978 standard. The aim of this paper is a quantitative and qualitative comparison of the compatibility of agronomic categories created according to the old textural classes (BN1978 standard) and the new textural classes (PSSS 2008 classification). The representative set of soil samples (n=316) for arable mineral soils in Poland were divided into agronomic categories according to these two soil classification systems. The agronomic categories, which comply with soil classification systems PSSS 1978 are widely used in agricultural advisory. The results of the study showed differences in the amount of soil samples classified for the corresponding agronomic category. The study also showed discrepancies in the fine particle (<0.02 mm) and colloidal fraction (<0.002 mm) content in the corresponding categories. The differences may affect the assessment of soil fertility in nutrients(abundance) such as potassium, magnesium and of soil liming needs, as well as appropriate determination of fertiliser doses.

World Multidisciplinary Earth Sciences Symposium (WMESS 2016)

The World Multidisciplinary Earth Sciences symposium (WMESS) 2016 was held in the Prague, Duo hotel from 5th to 9th September, 2016. After the great success of WMESS 2015, with more than 500 participants from more than 50 countries, symposium became popular for scientists of different topics, classical and contemporary research related to Geosciences. This volume of Journal IOP Conference Series: Earth and Environmental Science contains 175 articles collected in four sections. The World Multidisciplinary Earth Sciences symposium created a unique opportunity for participants to share research and work experience in the fields of Earth Sciences, providing a forum for early career researchers, for presentation of their work and discussion of their ideas with experts in different fields such as; Tectonics & Structural Geology - Engineering Geology - Geotechnics - Hydro-Hydrogeological Sciences - Natural Hazards - Oil, Gas & Coal, - Geothermal Energy - Geomorphology - Geochemistry, Mineralogy, Petrology & Volcanology - Stratigraphy, Sedimentology & Palaeontology - Geophysics & Seismology - Geodesy, Photogrammetry & Cartography - Informatics, Geoinformatics & Remote Sensing - Mining Engineering - Mineral Processing - Blasting & New Technologies - Natural Resources - Environmental Sciences - Energy, Resources & Pollution & the Environment - Environmental Legislation - Biogeosciences - Geological Heritage & Geoparks - Urban Planning - Atmospheric Sciences - Climatology - Glaciology - Modelling and Soft Computing Techniques in Earth Sciences.The main mission of the "World Multidisciplinary Earth Sciences Symposium - WMESS" is to lead to contribution in multidisciplinary studies related with atmosphere, biosphere, hydrosphere, lithosphere and pedosphere of the Earth and interaction of humans with them. As another mission, it provides a forum for this diverse range of studies which report the very latest results and document emerging understanding of the Earth's system and our place in it. This year, the Scientific Committee and Institutional Scientific Partners of WMESS were filled by paying close attention, and all members were selected from well-known, very much appreciated, productive and representative persons from different countries. We are deeply grateful to the members of the scientific committee and institutional scientific partners (International Association for Engineering Geology & the Environment - IAEG, International Union of Soil Sciences - IUSS, International Geographical Union - IGU, The International Association of Hydrogeologists - IAH, Geological Sciences of Italy - SGI, Czech Soil Science Society - CSSS, Arabian Geosciences Union - ArabGU, The Society of Economic Geology of Romania - SEGR, World Meteorological Organization - WMO, International Medical Geology Association - IMGA, Russian Mineralogical Society - RMS, University of Petrosani), Geological Society of Africa - GSAf of WMESS. We would also like to thank our main sponsors - LAMA Energy group, LAMA Gas & oil.The organizing committee appreciates enormous work of editorial board and reviewers in the preparation of this volume. This year volume was edited by Marian Drusa and co-editors Isik Yilmaz, Marian Marschalko, Anna Maria Ferrero, Ibolya Torok and Nazan Yalcin Erik. We would like to express our sincere thanks to all authors and presenters for their valuable research contributions. We wish you to enjoy the World Multidisciplinary Earth Sciences Symposium – WMESS 2016 and a pleasant stay in the city of romance Prague. We hope to see you again during the next event WMESS 2017, which will be held in Prague (Czech Republic) during 11-15 September, 2017.

Integrating Soil Science into Primary School Curricula: Students Promote Soil Science Education with Dig It! The Secrets of Soil

Core Ideas There is a need to incorporate soil science into primary education. A partnership brought soil science to Grades 2–7 in the Sacramento–Davis area of California. Graduate students used the Dig It! soils exhibit to engage primary school students. Curricula standards are a potential constraint and entry point for soil science. Principles of soil science are highly complementary with subjects required by state and national standards and offer an opportunity to integrate science, technology, engineering, and math (STEM) education and non‐STEM subjects, such as history and anthropology. However, soil science is often absent from primary education curricula. This is a missed opportunity for both primary education and the soil science community. We integrated soil science into primary education using the Soil Science Society of America (SSSA) traveling soil science exhibit Dig It! The Secrets of Soil. This effort was unique in that primary school educators, The California Museum staff, SSSA, and University of California–Davis graduate students worked to make the exhibit into an external classroom for Grades 2 through 7. The goal was to raise awareness and knowledge of soils and their importance to society and to offer example career opportunities in soil science. Grade‐specific presentations and activity‐based workshops were designed to address California curricula standards. These efforts identified several gaps and opportunities in soil science outreach to primary education. Participatory and observational activities were critical for conveying concepts across all educational grades. Curricula standards represented a potential constraint and corresponding entry point to facilitate the incorporation of soil science into primary education. Our experience demonstrates the ongoing impact of Dig it! The Secrets of Soil, and illustrates the potential of collaboration between academic institutions like UC–Davis and SSSA to improve soil science education.

Selected highlights in American soil science history from the 1980s to the mid-2010s

The beginning of the 20th century through the 1970s were good times for soil science in the USA, with relatively strong funding and overall growth in the profession. However, the soil science discipline in the USA hit hard times in the 1980s and 1990s. Federal funding for soil survey work began to decline as did student numbers in university programs and membership in the Soil Science Society of America (SSSA). Despite this, there were still many positive advances within soil science in the USA during these two decades. There was an increased use of geophysical instrumentation, remote sensing, geographic information systems (GIS), and global positioning systems (GPS), and research began in digital soil mapping, all of which lead to better understanding of the spatial distribution and variability of soils. Many NRCS soil products were put online, making them widely available to the general public, the use of soil knowledge was expanded into new areas such as archaeology and environmental work, and historic connections to geology were re-established. While expansion into new areas required soil science to evolve as a field, separating the discipline to an extent from its agricultural roots, it also helped reinvigorate the discipline. As we move through the early parts of the 21st century, student numbers are increasing in university soil science programs and membership in SSSA is at an all-time high. Digital soil mapping is being incorporated into the National Cooperative Soil Survey, and the impact of humans on the soil system is being fully recognized. The importance of soils is being recognized by events such as the United Nations declaration of 2015 as the “International Year of Soils”. The expansion of soils into new areas and widening recognition of the importance of soils gives the field hope for a bright future in the USA.

American Society of Agronomy （ASA）, Crop Science Society of America （CSSA）, Soil Science Society of America （SSSA） 2015 Annual Meeting, Synergy in Science: Partnering for Solutions 参加報告

American Society of Agronomy （ASA）, Crop Science Society of America （CSSA）, Soil Science Society of America （SSSA） 2015 Annual Meeting, Synergy in Science: Partnering for Solutions 参加報告

Moving Denitrifying Bioreactors beyond Proof of Concept: Introduction to the Special Section.

Denitrifying bioreactors are organic carbon-filled excavations designed to enhance the natural process of denitrification for the simple, passive treatment of nitrate-nitrogen. Research on and installation of these bioreactors has accelerated within the past 10 years, particularly in watersheds concerned about high nonpoint-source nitrate loads and also for tertiary wastewater treatment. This special section, inspired by the meeting of the Managing Denitrification in Agronomic Systems Community at the 2014 Annual Meeting of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, aims to firmly establish that denitrifying bioreactors for treatment of nitrate in drainage waters, groundwater, and some wastewaters have moved beyond the proof of concept. This collection of 14 papers expands the peer-reviewed literature of denitrifying bioreactors into new locations, applications, and environmental conditions. There is momentum behind the pairing of wood-based bioreactors with other media (biochar, corn cobs) and in novel designs (e.g., use within treatment trains or use of baffles) to broaden applicability into new kinds of waters and pollutants and to improve performance under challenging field conditions such as cool early season agricultural drainage. Concerns about negative bioreactor by-products (nitrous oxide and hydrogen sulfide emissions, start-up nutrient flushing) are ongoing, but this translates into a significant research opportunity to develop more advanced designs and to fine tune management strategies. Future research must think more broadly to address bioreactor impacts on holistic watershed health and greenhouse gas balances and to facilitate collaborations that allow investigation of mechanisms within the bioreactor "black box."

Presidents of the Soil Science Society of America

Soil Science Society of America JournalVolume 80, Issue 3 p. 805-815 Reports 2015 Presidents of the Soil Science Society of America First published: 24 June 2016 https://doi.org/10.2136/sssaj2015.0107pres_and_yearly_reports All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Volume80, Issue3May-June 2016Pages 805-815 RelatedInformation

2015 SSSA Fellows

Soil Science Society of America JournalVolume 80, Issue 3 p. 823-825 Fellows 2015 2015 SSSA Fellows First published: 24 June 2016 https://doi.org/10.2136/sssaj2015.0171f All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume80, Issue3May-June 2016Pages 823-825 RelatedInformation

ANALISIS SITIRAN ARTIKEL JURNAL LUAR NEGERI PADA LAPORAN PENELITIAN DI LEMBAGA PENELITIAN DAN PENGABDIAN KEPADA MASYARAKAT UGM YANG DIBIAYAI BADAN LITBANG PERTANIAN DEPARTEMEN PERTANIAN TAHUN 2007

Citation Analysis of article reports research at Institute for Research and Community Services Gadjah Mada University (GMU) funded by the Agricultural Research and Development Department of Agriculture in 2007. The study aims (1) to discover the foreign journal used in this article Research Reports di Research and Community Services GMU funded by the Agricultural Research and Development Department of Agriculture in 2007, (2) knowing the percentage utilization of each journal published abroad ever subscribed (either already stopped or are still subscribed) by Library Faculty of Agro complex in GMU of article reports research at Institute for Research and Community Services GMU funded by the Agricultural Research and Development Department of Agriculture in 2007, (3) to know the relevancy and use of foreign journal by the scientific article in reports research at Institute for Research and Community Services GMU funded by the Agricultural Research and Development Department of Agriculture in 2007, (4) to know the currency of the foreign journal reffered by the research report at Institute for Research and Community Services GMU funded by the Agricultural Research and Development Department of Agriculture in 2007. This research is a descriptive study, with the subject of study is a research report at Institute for Research and Community Services GMU funded by the Agricultural Research and Development Department of Agriculture in 2007, and the object of research is the issue of foreign journals are used as a reference in a research report at Institute for Research and Community Services GMU funded by the Agricultural Research and Development Department of Agriculture in 2007. Method of data collection and documentation using the interview method for cross checking. Data analysis using citation analysis. The results of study: (1) There are 103 titles of foreign journal cited in the research report at Institute for Research and Community Services GMU funded by the Agricultural Research and Development Department of Agriculture in 2007, including 35 titles of the journal subscribed by Library Faculty of Agro complex in GMU, (2) The frequency of the citation of the 35 titles was that : Applied and Environmental Microbiology by 14 times (6,51%), Postharvest Biology and Technology and Trans of the ASAE by 12 (5,55%), J. of Food Engineering by 10 (4,65%), J. of Food Science by 10 (3,72%), Plant and Soil by 8 (3,26%), J. of Agriculture Eng. Research by 6 (2,79%), Bioresource Tech. by 5 (2,33%), Food Tech. and J. of Dairy Science by 4 respectively (1,86%), Intern. J. of Food Microbiology, J. Animal Science, J. of Biomass and Bioenergy, J. of Stored Product Research, and Solar Energy by 3 respectively (1,40%), Food Chemistry, J. Meat Science, J.of Bioscience and Bioengineering, and Soil Science Society of America Journal by each 2 (0,93%), Agriculture Ecosystems &amp; Environment, Agricultural Systems, Agronomy J., Biosystems Engi., Biotechnology Letters, Cell, Computers and Electronics in Agricultural, Crop Science, Environmental and Experimental Botany, Food Control, Hort Science, Intern. Dairy J., J. of Food Microbiology, Soil Biology and Biochemistry, Trends in Food Science &amp; Technology, and Trends in Plant Science by 1 each (0,47%). (3) There are also a relevancy between the scientific articles in research reports at the Institute for Research and Service to the Community financed GMU Agricultural Research Agency Ministry of Agriculture in 2007 with a study published in the journal referred abroad, and their utilization are more prone to support theoretical approaches and findings, (4) Journal publications are used abroad as a reference in a research report at Institute for Research and Community Services GMU funded by the Agricultural Research and Development Department of Agriculture in 2007 was included in a current category 60.47% or equal to 130 citation, not current category 40.01% or equel to 85 citastion, and more than 30 years (6,05%).