Green Field Research Articles

Estimating the catechin concentrations of new shoots in green tea fields using ground-based hyperspectral imagery

Hyperspectral imagery was applied to estimating non-galloyl (EC, EGC) and galloyl (ECG, EGCG) types of catechins in new shoots of green tea. Partial least squares regression models were developed to consider the effects of commercial fertilizer (CF) and organic fertilizer (OF). The models could explain each type of catechin with a precision of more than 0.79, with a few exceptions. When the CF model was applied to the OF hyperspectral reflectance and the OF model was applied to the CF hyperspectral reflectance for mutual prediction, the prediction accuracy was better with the OF models than CF models. The prediction models using both CF and OF data (hyperspectral reflectances, and concentrations of catechins) had a precision of more than 0.76 except for the non-galloyl-type catechins as a group and EGC alone. These results provide useful data for maintaining and improving the quality of green tea.

Ag immobilized lignin-based PU coating: A promising candidate to promote the mechanical properties, thermal stability, and antibacterial property of paper packaging

A lignin-based PU coating was prepared for paper-based green packaging. Two representative diisocyanate were used to prepare the coatings. Due to the rigid aromatic, the physical properties of the TDI system reached the maximum below the lignin content of 40%. The HDI that contains flexible aliphatic chains alleviated the brittleness of coating, and it showed physical advantages when the lignin content was more than 50%. Owing to the high lignin content, the coating presented enhanced thermal stability. After coated with the lignin-based PU coatings, the dry tensile strength of coated paper was improved by 126%. Amazingly, the wet strength was increased from 0.31 to 12.6 MPa with an improvement nearly 40 times. Based on the coordination of lignin, Ag+ was introduced into the PU matrix, which imparted the coating with excellent antibacterial ability. The colony forming units of E. coli and S. aureus were both less than 1. However, no inhibition halo was observed, which indicated that the Ag was firmly anchored on the coating and the antibacterial ability is only available when the bacterial contact the coating surface. The lignin-based PU coating with favorable sustainability and properties shows great potential in paper-based green packaging fields.

Open data: A driving force for innovation in the life sciences

Scientific discoveries never appear on green fields in isolation; knowledge generated by others underpin them. But how can we foster collaborative environments, and what are the key components of success, particularly after years of digital transformation in the life science sector? This report demonstrates that access to open, free resources, such as data and software, is the underlying basis for breakthrough discoveries, scientific excellence and entrepreneurial endeavours. Studying three different European innovation ecosystems – Cambridge, Berlin and Barcelona –, the report explores the factors and actors that contribute to the success of these ecosystems. For example, it examines entrepreneurs that bridge academia and industry, companies that use open resources, and public infrastructure providers that engage in public-private partnerships. The report also features case studies of two innovation-driven European SMEs, Scailyte and SciBite , each with a different business model and use of open data.

A comparison study of molten-salt and solid-state method for the photoelectrochemical water splitting performance of Dion-Jacobson layers perovskite Ca2Nan-3NbnO3n+1- (n = 4, 5, and 6) nanosheets

Solar energy is one of the elements that have been used as a resource in the green energy field. Hydrogen, as an energy carrier, can be produced from many kinds of sources, including solar energy. Here, we present two-dimensional (2D)perovskite material derived from the Dion-Jacobson phase (DJ), Ca2Nan-3NbnO3n+1- (CNNO−) nanosheets, with the number of layer n = 4–6 synthesized via microwave-assisted hydrothermal method. The starting material KCa2Nb3O10 (KCNO) is made from two methods. The solid-state calcination KCNO product has more than two-phase, while the molten-salt synthesis produces a well cubic KCNO crystalline. TThe thickness of the 2D CNNO− nanosheets is increasing, in dependence on the n value. Meanwhile, the estimated optical band gap is decreasing, in dependence on the n value. 2D CNNO− nanosheets show the absorbance under ultraviolet (UV) light, which confirms their semiconducting nature. The capability of these 2D nanosheets to generate hydrogen is presented via photo-electrochemical (PEC) water splitting. The molten-salt fabricated CNNO− nanosheets CNNO6 shows better performance with the highest efficiency ɳ up to 0.110% when applied to the PEC device.

Deciphering organization of GOES-16 green cumulus through the empirical orthogonal function (EOF) lens

Abstract. A subset of continental shallow convective cumulus (Cu) cloud fields has been shown to have distinct spatial properties and to form mostly over forests and vegetated areas, thus referred to as “green Cu” (Dror et al., 2020). Green Cu fields are known to form organized mesoscale patterns, yet the underlying mechanisms, as well as the time variability of these patterns, are still lacking understanding. Here, we characterize the organization of green Cu in space and time, by using data-driven organization metrics and by applying an empirical orthogonal function (EOF) analysis to a high-resolution GOES-16 dataset. We extract, quantify, and reveal modes of organization present in a green Cu field, during the course of a day. The EOF decomposition is able to show the field's key organization features such as cloud streets, and it also delineates the less visible ones, as the propagation of gravity waves (GWs) and the emergence of a highly organized grid on a spatial scale of hundreds of kilometers, over a time period that scales with the field's lifetime. Using cloud fields that were reconstructed from different subgroups of modes, we quantify the cloud street's wavelength and aspect ratio, as well as the GW-dominant period.

CONNECTING BY DIFFERENCES: CREATING SPATIAL CONTINUITY FROM DIFFERENT LEVELS OF MEDIATIONS

The area is located in Città studi, on the edge of the dense complex of Politecnico di Milano and the large green space Giuriati Sports Field: two areas have no spatial continuity. The design intention is to establish a mutual relationship between campus and the urban context. By working on the concept of the threshold space as an opportunity for mediation, we were able to envision public and open spaces that interact with the city. The design of the new complex is based on a principle of balance between horizontality (public sphere) and verticality (private sphere), taking into consideration how, according to the principle of urban mixité, the relationship between public, social, working and private life will take on a new shape. The complex will therefore represent a transition between the urban setting and the rest of the campus. Its interior is based on the use of different threshold and mediation levels: these are configured as a gradual sequence starting from the more urban context of the work space, which is connected to the residence through the underground, to the exhibition and archive centre, which embodies the reciprocal relationship between city and campus, to the more private sphere of the residential complex, envisioned as a mix of domestic and work spaces that is reflected in each individual housing unit as well as the common areas. The dissertation was built upon a research on the formation of the threshold space, paying particular attention to the spatial continuity between indoors and outdoors.

Controlled urban sprawl in Auckland, New Zealand and its impacts on the natural environment and housing affordability

Auckland experienced phenomenal expansion since 1841. This study assesses the pace of urban sprawl and its control over the natural environment and housing affordability. After the urban built-up area was mapped, its change over time was detected, and correlated with population. From 1842 to 2014 built-up area in Auckland grew from 48 ha to 50,531 ha. The pace of growth was 151 ha/year during 1842–1945 but jumped to 989 ha per annum during 1975–2001. It dropped to only 249 ha per annum in this century. This unchecked sprawl is a direct response to population growth and facilitated by improved transportation. Since the late 1990s urban built-up areas experienced a subdued expansion despite continued population growth. This curtailed sprawl is attributed to the contentious planning regulations implemented to curtail sprawl. Consequently, population density rose to 28 persons/ha, the highest since a century ago. Urban growth has reduced biomass and green fields with mean vegetation index dropped from 129.5 to 118.7 during 2002–2014 with a smaller standard deviation, suggesting the landscape is increasingly homogenized. House prices rose slowly when the growth potential decreased slowly and vice versa (r = − 0.925) while the number of vacant sections suitable for single dwellings declined. Thus, controlled urban sprawl is largely responsible for the skyrocketed price of sections and declined housing affordability.

Factors driving shippers' compliance with a voluntary sustainable freight programme in France

This paper explores the responses of French transport services' buyers to environmental initiatives, thereby contributing to understanding the impact of governmental sustainable freight policies, including the FRET21 programme launched in 2015 by the French government. Using a multiple case study design involving 10 pilot companies, the heterogeneous data collection (semi-structured interviews, access to internal documents, direct observations, programme participants brainstorming) has been carried out with the assistance of French transportation services purchasing managers from Carrefour, Coca-Cola, Saint-Gobain, Renault, Fleury Michon, Air Products, Henaff, Ferrero and Orrion. Our study reveals the voluntary participation of the companies to reduce their CO2 emissions related to their freight operations, regardless of company size or their sector of activity. Furthermore, the environmental sensitivity of the shippers stems more from an internal dynamic, be it supportive employees or top management, rather than the obligation to calculate their CO2 emissions. Although the FRET21 charter enhances substantially intra- and inter-organisational collaboration, especially between carriers, ADEME - the French Environmental Protection Agency - and shippers, environmental issues do not yet constitute a decisive criterion in carrier selection by shippers. This paper is original in its research area since very few studies in the existing literature explore the application of a sustainable freight transportation programme, scrutinising the successes and failures encountered in its application. Our study contributes to the green freight transportation field in two ways: by providing appropriate recommendations to help spread the sustainable freight programme to other shippers in France, but also by providing public and private entities worldwide with managerial insights and relevant guidance to influence shippers’ responsiveness in the direction of sustainable freight. The study also stresses the need of having transparent tools and a standard method to measure freight CO2 emissions, thereby supporting shippers in their sustainable freight endeavours.

How Fintech Promotes China's Green Finance Development: Policies, Markets and Opportunities

In September 2020, Chinese President Xi Jinping announced at the 75th United Nations Conference that China will strive to achieve carbon peaks by 2030 and carbon neutrality by 2060. China's investment in green and low-carbon fields is expected to continue to increase rapidly, and green finance will play a more important role. As an important support for the construction of the green financial system, the financial technology will play a key role in supporting the green financial services to the real economy more effectively. In China, financial technology has made some explorations and practices to promote green financial integration and sustainable development. It has been applied in more and more industries such as agriculture, consumption, construction, and micro-enterprises. For example, the use of financial technology can more effectively identify green assets, projects, products and services, carry out the collection, traceability, processing and analysis of environmental benefit data, and support green asset trading platforms, etc.; Financial institutions provide tools and methods to solve information asymmetry, reduce costs, and improve efficiency in low-carbon asset identification, transformation risk quantification, carbon asset information disclosure, etc.; it can be used in the green financial supervision policy tool, Enterprise carbon neutrality, systemic risk analysis, green investment and financing, financial products and innovative services, and green market mechanism construction provide more effective solutions.

Organocatalytic Strategies for the Development of the Enantioselective Inverse-electron-demand Hetero-Diels-Alder Reaction.

Cycloaddition reactions, in particular Diels‐Alder reactions, have attracted a lot of attention from organic chemists since they represent one of the most powerful methodologies for the construction of carbon‐carbon bonds. In particular, inverse‐electron‐demand hetero‐Diels‐Alder reactions have been an important breakthrough for the synthesis of heterocyclic compounds. Among all their variants, the organocatalytic enantioselective version has been widely explored since the asymmetric construction of diversely functionalized scaffolds under reaction conditions encompassed within the green chemistry field is of great interest. In this review, a profound revision on the latest advances on the organocatalytic asymmetric inverse‐electron demand hetero‐Diels‐Alder reaction is shown.

Napa

Google services continuously generate vast amounts of application data. This data provides valuable insights to business users. We need to store and serve these planet-scale data sets under the extremely demanding requirements of scalability, sub-second query response times, availability, and strong consistency; all this while ingesting a massive stream of updates from applications used around the globe. We have developed and deployed in production an analytical data management system, Napa, to meet these requirements. Napa is the backend for numerous clients in Google. These clients have a strong expectation of variance-free, robust query performance. At its core, Napa's principal technologies for robust query performance include the aggressive use of materialized views, which are maintained consistently as new data is ingested across multiple data centers. Our clients also demand flexibility in being able to adjust their query performance, data freshness, and costs to suit their unique needs. Robust query processing and flexible configuration of client databases are the hallmark of Napa design. Most of the related work in this area takes advantage of full flexibility to design the whole system without the need to support a diverse set of preexisting use cases. In comparison, a particular challenge we faced is that Napa needs to deal with hard constraints from existing applications and infrastructure, so we could not do a "green field" system, but rather had to satisfy existing constraints. These constraints led us to make particular design decisions and also devise new techniques to meet the challenges. In this paper, we share our experiences in designing, implementing, deploying, and running Napa in production with some of Google's most demanding applications.

A STEP FORWARD ENHANCING GREEN BUILDINGS IN DEVELOPING COUNTRIES

Sustainability is essential for maintaining certain levels of life quality for next generations. Accordingly, Egypt started to establish its own rating system to achieve sustainable development. There are several green building rating systems that are recently used such as: the LEED (Leadership in energy and environmental Design) rating system, Green Pyramid Rating System “GPRS”, and TARSHEED rating system. GPRS and LEED are almost the same since GPRS is based on LEED. Due to the significant cultural and environmental changes between Egypt and the United States, LEED rating system cannot be implemented in Egypt. On the other hand, the rating system TARSHEED includes three categories only, namely energy, water, and habitat, to determine sustainable construction performances. For example, waste management category which is one of Egypt’s challenges is ignored by TARSHEED. This research introduces a new modified rating system for new construction with new weights to suit Egypt requirements. This work presents a comprehensive study and comparative analysis between the existing green building rating systems for new construction in Egypt. Moreover, some surveys and questionnaires are conducted to take the experts opinion in the green field. A new checklist for new construction is constructed using data obtained from Analytical Hierarchy Process (AHP) decision making tool. This list includes new categories and subcategories with new weights, which suit the environmental challenges in Egypt.

GREEN MARKETING COMMUNICATION STRATEGIES: AN INTEGRATIVE LITERATURE REVIEW

Marketing communication for green brands and products should not be seen exclusively as a means to attract and impress consumers with the most beautiful and spectacular green messages. All messages communicated to the public must have a solid foundation, which most of the time can be represented by the attributes of the green product or by its benefits for the environment, community and for the current and future generations of consumers. In this regard, marketing communication, as part of the green marketing strategy, faces several challenges. On the one hand, green communication has the role of educating and informing the public about the specific benefits of green products in order to determine the public to adopt a pro-ecological behavior. On the other hand, the communication approaches must respond to the exigencies of the green field, in order to avoid the social and ecological criticisms, as well as the categorizing of the organization’s actions as part of the greenwashing phenomenon. Therefore, the purpose of this theoretical paper is to identify the typology of green marketing communication strategies. The paper is based on secondary data sources, namely the literature on green marketing communication, focusing on specific communication strategies. This study reviews and synthesizes 39 relevant articles related to the researched subject, which have been identified in academic databases. In literature have been identified five defining criteria for communication strategies, along with specific strategic alternatives. We note the need to continue the research in this field, in order to develop other strategic alternatives that respond to the specific problems of this market and that offer the opportunity for green brands to position themselves effectively.

Features of interpretation of data of light and spectral dermatoscopy in patients with actinic keratosis

Actinic keratosis (AK) is a common disease that is formed as a result of excessive insolation of exposed skin areas. One of the possible options for the development of the disease is the transformation of AK into squamous cell carcinoma. The timely diagnosis of suspicious areas of AK with their subsequent excision and histological examination has great importance in the prevention of neoplastic transformations of the skin.The aim of our study was to identify dermatoscopic patterns of the initial stages of neoplastic transformation of actinic keratosis and a comparative analysis of the diagnostic effectiveness of digital dermatoscopy, two­color spectral dermatoscopy in relation to histological examination in a group of individuals suffering from actinic keratosis.There were 49 patients with AK under our supervision. All suspected cases of keratosis were additionally examined histologically. We analyzed the features of clinical forms and modified existing diagnostic methods. To expand the diagnostic capabilities of standard dermatoscopy, studies were performed in different ranges of light. Spectral dermatoscopy allowed estimating the potential foci of neoplastic transformation in blue and green light field (standard illumination range was suppressed). Particular attention was paid to areas of increased keratinization, areas of excessive vascularization with a predominance of superficial capillary network, micro­ulcers with loose edges that contrast well with the green spectrum, as well as dynamic changes in color in one field of study for 30 days.It was found that the use of spectral dermatoscopy increases the diagnostic capabilities of AK and allows identifying more accurately the early signs of neoplastic transformations associated with both pathological neoangiogenesis («strawberry» pattern, glomerular network) and pathological proliferation (pseudogranulations, pathological keratinization, etc.).

Design and Preparation of Multiple Function-Integrated Lignin/Tannin/ZnONP Composite Coatings for Paper-Based Green Packaging.

Lignin/tannin/ZnONP composite coatings were designed for paper-based green packaging. Multiple functions, such as high strength, moisture resistance, low air permeance, heat endurance, UV aging resistance, and antibacterial/mold properties, were successfully integrated into one biobased coating. Prepolymerization improved the physical properties of coatings at high lignin contents. The best ingredient ratio was: 40% lignin, 15% tannin, and 10% ZnONPs (based on tannin weight), and the as-prepared biocoating was labeled LTZn-10. After coated with LTZn-10, the tensile strength and bursting strength of the packaging were efficiently enhanced by more than 3 times and were dramatically increased by 51.6 and 5.6 times at the wet state, respectively, which reveals that the packaging has favorable moisture resistance and it can be used in high humidity environments. Scanning electron microscopy (SEM) proved that most of the pores on the paper were blocked by the coatings, which helped to decrease the air permeance by 10.3 times. Meanwhile, ZnONPs were evenly spread on the coatings, which endowed the packaging with excellent antibacterial/mold performance. No colony or mycelium was found in the test against Gram-negative/positive bacteria and eight common molds. Besides, antibacterial activity is only available while the bacteria come in contact with the coating and no active substances were released into the culture medium, which is a good property that can keep the cargo from contamination of antibacterial agents. In addition, the coated paper presented an improved Tg and thermal degradation temperature, indicating that the coated package has favorable thermostability and can maintain its outstanding physical properties in a wider temperature range. Lignin and tannin promoted the UV stability and service life of the coated paper, as a rare physical decrease was observed after UV aging for 72 h. The function-integrated biobased coating with favorable sustainability is a good candidate to be widely used in paper-based green packaging fields.

Effect of Different Pulse and Oilseed based Cropping Systems on Yield and Nutrient Budgeting under Rainfed Conditions of Jammu

Background: Maize-wheat is the predominant cropping system of dryland ecology of Jammu region, but due to their comparatively higher input requirements especially of nutrients and water under the fragile ecology of these dry lands an untenable threat has been posed to their factor productivities. Therefore, all cropping sequences that suit and sustain better on the natural resources of the dryland ecosystems for a longer period of time needs to be explored.Methods: The treatments consisted of two oilseeds i.e. mustard) and gobhi sarson and two pulse crops i.e. chickpea and field pea taken during rabi were followed by two oilseed i.e. soybean and sesame and two pulse crops i.e. green gram and black gram grown during kharif. The experiment was laid out in randomized block design with four replications.Result: Significantly higher chickpea equivalent yield of green gram was observed with field pea- green gram sequence (10.26 q/ha) which was at par with the chickpea – green gram and field pea - black gram system. The available nitrogen status was significantly influenced and recorded highest (166.82kg/ha) under field pea- green gram system. Further overall nutrient mining by this system was quite low as compared to other systems.

Ionic liquid [C3mim]OTf aqueous solution: Green high efficiency electroreduction for carbon dioxide at room-temperature

The ionic liquids (ILs) solvent have been drawn much attention in green chemistry field. However, ILs are usually dissolved in organic solvents, which can cause some evaporation pollution. Here, the conversion technologies of carbon dioxide (CO2) was explored with Pb, In and Sn electrodes in the 1-propyl-3-methylimidazolium trifluoromethane sulfonate ([C3mim]OTf) aqueous solution. The application of ILs not only solved the problem of organic solvents, but increased the efficiency of CO2 chemistry conversion. The influences of applied potential, electrolyte concentration and working electrodes on electroreduction of CO2 was investigated. The experiments show that the dominant reaction on Pb, In and Sn electrodes in [C3mim]OTf is CO2 electroreduction rather than hydrogen evolution reaction. The Faradaic efficiency of HCOOH was increased first and then decreased along with the applied potential (vs. Ag/Ag+) in test process. Compared to Pb and In electrodes, Sn electrodes have the highest activity for the electroreduction of CO2. Notably, when the partial current density reached 9.3 mA·cm−2 at −2.2 V (vs. Ag/AgCl), the Faradaic efficiency was reached up to 35.45% on the Sn electrodes in 40 mg·mL−1 [C3mim]OTf aqueous solution.

Living by Inches: The Smells, Sounds, Tastes, and Feeling of Captivity in Civil War Prisons

June 21 2021 Living by Inches: The Smells, Sounds, Tastes, and Feeling of Captivity in Civil War Prisons Living by Inches: The Smells, Sounds, Tastes, and Feeling of Captivity in Civil War Prisons. Rebeccah Bechtold Rebeccah Bechtold Rebeccah Bechtold is an associate professor of English at Wichita State University where she specializes in soundscape studies of early and nineteenth century American literature. Search for other works by this author on: This Site Google Scholar Author and Article Information Rebeccah Bechtold Rebeccah Bechtold is an associate professor of English at Wichita State University where she specializes in soundscape studies of early and nineteenth century American literature. Online Issn: 1937-2213 Print Issn: 0028-4866 © 2021 by The New England Quarterly2021The New England Quarterly The New England Quarterly (2021) 94 (2): 289–292. https://doi.org/10.1162/tneq_r_00894 Cite Icon Cite Permissions Share Icon Share Twitter LinkedIn Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Search Site Citation Rebeccah Bechtold; Living by Inches: The Smells, Sounds, Tastes, and Feeling of Captivity in Civil War Prisons. The New England Quarterly 2021; 94 (2): 289–292. doi: https://doi.org/10.1162/tneq_r_00894 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter All ContentAll JournalsThe New England Quarterly Search Advanced Search In an August 15, 1863 diary entry, Union solider Horace Smith complained of his declining health while held captive at Virginia's Belle Isle Prison during the Civil War. Even though he could hardly “muster strength enough to crack a louse,” he lamented, “necessity compels me to muster all the strength I can twice a day for that purpose.” This compulsion—both to keep his body from becoming “one mass of filth,” as Nehemiah Solon would describe it a year later, and to record his attempts to do so—speaks to the varied ways prison life threatened the very identities of soldiers throughout the war (80). As Charles Lee stated during an 1864 excursion that allowed him outside Andersonville, “the fresh air and the green fields and forests made me feel almost like one risen from the dead” (45). Exposed to disease and hunger, subjected to unwelcome noise, and surrounded by the smell... You do not currently have access to this content.

Green supply chain management and organizational culture: a bibliometric analysis based on Scopus data (2001-2020)

PurposeAlong with rapid development in the green supply chain fields, questions have been raised about the direct effects of internal and external drivers. Recent evidence suggest that organizational culture is a prerequisite for the understanding of green supply chain management (GSCM). However, there has been limited examination of organizational culture in the green supply chain research area. The purpose of this paper is to understand the relationship between green supply chain management (GSCM) and organizational culture.Design/methodology/approachTo do so, a bibliometric analysis is carried out. The search was conducted in the Scopus database by using different keywords. The records found were scanned and refined bringing the total number of documents to 46. A descriptive analysis covering influential authors, leading journals, contributing organizations and most popular words used in titles and keywords, using the Biblioshiny app, followed by a content analysis have been conducted.FindingsThe findings show the following: most of the influential studies were conducted by only a few researchers. The publications within the field started to increase during 2012–2020. It is worth mentioning, that the USA and UK universities have a strong research contribution among all, and there are seven core publishing journals that lead the field such as cleaner of production and sustainability. The content analysis revealed some aspects and shed light on two main topics: organizational culture as a driver or a barrier toward GSCM; and the organizational culture contribution role on the impact of GSCM on performance.Research limitations/implicationsThis paper only addresses GSCM with organizational culture based on a small sample of papers. Furthermore, this study needs to be expanded with empirical research on the topic. It would be interesting to assess the effects of national culture within the same research area. More broadly, researchers may also need to explore the various databases instead of focusing only on Scopus database case of this paper, using various keywords.Practical implicationsThis study plays an important role for managers and firms, and also this study is contributing in increasing the understanding of the role of cultural factors on implementing the GSCM practices and getting the highest benefits from it.Originality/valueThis paper holds significant contribution for scholars, especially for those who are interested in cultural issues within the management field, and for managers by enlightening a critical element to concentrate on for the betterment of green sustainability within their firms. Considering this, future research suggestions are identified.

Satellite observed rapid green fodder expansion in northeastern Tibetan Plateau from 2010 to 2019

The livestock product consumption per capita in China has almost doubled in the past three decades. The planting of green fodder has increased in the agropastoral ecotone of China to meet the increasing demand for livestock feed, and the green fodder expansion can have subsequent consequences on the environment. However, information on the area and distribution of green fodder is very limited. Here, we developed a pixel- and phenology-based algorithm to map green fodder and track its dynamics in the northeastern Tibetan Plateau, a typical alpine pasture region in China, using all the available Landsat images and Google Earth Engine (GEE). We developed a simple approach for the rapid identification of green fodder fields by using a new green fodder index that considers the unique phenology of green fodder, which has higher greenness and water content in the late growing season than other vegetation. A total of 858 Landsat images were used to generate green fodder maps in northeastern Tibetan Plateau (including Zeku, Guinan, and Tongde Counties) in three periods (circa 2010, 2015, and 2019). The overall accuracies of our green fodder maps were 93–97% and the Matthews correlation coefficients were 0.76–0.83. We found a rapid expansion of green fodder from 16.3 km2 in 2010 to 136.1 km2 in 2019. Newly cultivated green fodder occurred in both existing croplands and natural grasslands. Our study demonstrated the potential of the phenology-based approach, all the available Landsat images, and GEE for tracing the historical dynamics of green fodder at 30-m resolution in alpine regions. Our findings advance our understanding of changes in forage area, production, the supply–demand gap, and the ecological and climatic consequences of green fodder expansion.