Local Plant Species Research Articles

Agricultural legacy shapes plant diversity patterns in mountain grasslands of Maramureș and Bukovina: A cross‐border perspective (Ukraine, Romania)

Abstract We investigated farming practices and grassland plant diversity patterns in the historical regions of Maramureș and Bukovina, located in the central Eastern Carpathians of Romania and Ukraine. We explored the influence of social and historical factors on recent grassland plant diversity, including changes and modifications in land use and grassland management practices. We used stratified random sampling to select 48 grassland parcels in eight villages on the Ukrainian‐Romanian borderlands. We identified the factors that affect the composition and diversity of grassland vascular plants and bryophytes at multiple spatial scales and compared the frequency and timing of historical and recent grassland management practices to distinguish between preserved and modified agricultural traditions. In most of the grassland parcels studied (83% in Romania and 78% in Ukraine), traditional land use persisted. Local plant species richness was primarily influenced by management practices, outweighing the impact of topography and soil factors. Regular mowing at appropriate intensity increased the richness of vascular plants, while grazing promoted the richness of bryophyte species. Modifications to farming systems, observed in all studied villages, were mainly due to declining population and livestock numbers. Although the timing of spring and autumn grazing in hay meadows still adhered to tradition, mowing schedules shifted earlier, especially for the first cut of two‐cut hay meadows. Traditional corralling, fertilization and hayseed application have become rare or discontinued in certain villages, while controlled burning has increased. Past use of mineral fertilizers in Ukrainian villages during the Soviet era influenced the recent diversity and composition of vascular plant species, favouring nutrient‐demanding species. Social factors and agricultural policies indirectly affect biodiversity in semi‐natural grasslands, leaving a tangible footprint even in the most remote areas of the Carpathian Mountains. We provide basic recommendations to preserve the remarkable biodiversity of the region. Read the free Plain Language Summary for this article on the Journal blog.

Ecology of Trifolium elazizense, an endemic alpine meadow species from Türkiye

This study presents some ecological characteristics of Trifolium elazizense, a local endemic alpine meadow plant species in the East Anatolian region of Türkiye. Elemental analyses were carried out in plants and soils. Soil-plant relationships were evaluated. The results obtained from all plant parts of Trifolium elazizense (root, stem and leaves) showed that the elemental concentrations of boron, calcium, copper, potassium, manganese, lead and zinc were within the limit values; cadmium, iron and magnesium were above the limit values. The general concentration of all elements in the soil samples is generally within acceptable limits.

The impact of kaolin mining activities on bacterial diversity and community structure in the rhizosphere soil of three local plants.

Thus far, the impact of kaolin mining activities on the surrounding native plants and rhizosphere microecology has not been fully understood. In this study, we used 16S rRNA high-throughput sequencing to examine the impact of kaolin mining on the rhizosphere bacterial communities and functions of three local plant species: Conyza bonariensis, Artemisia annua, and Dodonaea viscosa. The results showed that kaolin mining significantly reduced the diversity of rhizosphere bacteria in these plants, as indicated by the Shannon, Simpson, Chao1, and observed species indices (p < 0.05). Kaolin mining had an impact on the recruitment of three rhizosphere bacteria native to the area: Actinoplanes, RB41, and Mycobacterium. These bacteria were found to be more abundant in the rhizosphere soil of three local plants than in bulk soil, yet the mining of kaolin caused a decrease in their abundance (p < 0.05). Interestingly, Ralstonia was enriched in the rhizosphere of these plants found in kaolin mining areas, suggesting its resilience to environmental stress. Furthermore, the three plants had different dominant rhizosphere bacterial populations in kaolin mining areas, such as Nocardioides, Pseudarthrobacter, and Sphingomonas, likely due to the unique microecology of the plant rhizosphere. Kaolin mining activities also caused a shift in the functional diversity of rhizosphere bacteria in the three local plants, with each plant displaying different functions to cope with kaolin mining-induced stress, such as increased abundance of the GlpM family and glucan-binding domain. This study is the first to investigate the effects of kaolin mining on the rhizosphere microecology of local plants, thus contributing to the establishment of soil microecological health monitoring indicators to better control soil pollution in kaolin mining areas.

Distribution and growth potential of wild Pittosporum tobira in the subtropical supratidal zone

The use of local native plant species for ecological restoration and rehabilitation is considered an important strategy for nature-based solutions. To achieve this goal, the key work is to understand the distribution of local native plants and their limiting factors. Pittosporum tobira is a keystone species of the vegetation community in subtropical coastal areas, and it plays an essential role in the function and stability of the coastal vegetation buffer zone. The aim of this study was to identify the factors that restrict the growth of P. tobira in the subtropical supratidal zone. We investigated the growth and development of P. tobira plants at three field sites, Dongtou Island (DT), Yuhuan Island (YH), and Cangnan County (CN), in Zhejiang Province, China. To investigate the key factors restricting the growth of this species, we sampled soils from both the supratidal zone and the P. tobira habitat zone. Soils in the supratidal zone showed typical characteristics of sodium chloride-type saline-alkali soil, and the soluble salts content showed wide fluctuations. Some soils in the supratidal zone showed severe salinization. The soil pH and soluble salts contents were higher, but soil organic matter content was lower, in the supratidal zone than in the P. tobira habitat zone. Among the three wild P. tobira habitat sites, DT had the lowest soil nutrient contents. In soil from the DT site, the soluble salts content was 150 % higher and soil organic matter content was 50 % lower than those in soils from the YH and CN sites. Compared with P. tobira growing at the CN and YH sites, those growing at the DT site showed higher antioxidant enzyme activity, higher organic osmotic regulatory substances content, and lower malondialdehyde content in the leaves and roots. These results suggest that the growth and distribution of P. tobira are affected by the organic matter content, pH, and soluble salts content in soil. Among the three P. tobira populations studied here, the population at DT was the most tolerant to the highly saline conditions in this subtropical coastal area, and has potential applications in landscape restoration of the supratidal zone.

Dynamics of soil water potential as a function of stand types in a temperate forest: Emphasis on flash droughts

In the context of a changing climate and the increasing occurrences of extreme events, including droughts, field evidence, and models suggest that cases of forest decline and migration of tree species to more suitable climates will augment in the 21st century. In northeastern North America, an expansion of American beech at the expense of maples has been observed since the 1970s and has been associated to several causes. Through an analysis of time series leveraging thousands of data collected in a temperate forest in southern Quebec, Canada, dynamics of soil water potential were analyzed in interaction with soil temperature, meteorological variables and forest types, including hardwoods (mostly maple) with a large presence of beech trees (hardwood-beech stands), hardwoods (maple and birch) and mixedwoods (maple and fir). During flash drought events with a net precipitation deficit and water stress, the presence of beech led to a decrease in soil temperature and favored the maintenance of low soil water potential and faster restoration of water reserves compared to mixedwoods. Using machine learning-based approaches, distinct critical soil temperature thresholds in regard to water potential were identified for the various forest types, and the temporality in soil water regime changes was more favorable under hardwood-beech stands. The presence of beech appears to render greater resilience in regard to water stress in this forest. A greater capacity of beech to preserve and restore soil water not only offers an additional explanation for its establishment in hardwoods in the last decades, but greater water conservation in the presence of beech, assuming it remains in the landscape, could also help local plant species adapt to climate change and to the predicted increased water deficits, as well as species migrating northward to find more suitable environmental envelopes.

A quick and effective trait-based protocol for selecting appropriate native plant species for the reforestation of degraded tropical mines.

A critical issue in tropical forests is that anthropogenic deforestation (i.e., mining) degrades the integrity of its ecosystem. Reforestation with appropriate native plant species helps to alleviate these detrimental impacts. A protocol to select appropriate plant species for this purpose currently lacks efficacy and timeliness. We provided a trait-based protocol to quickly and effectively select native plant species for mining reforestation. A 0.2-km2 area of Baopoling (BPL) at Hainan Island, China, was used as a study site, which has been severely degraded by 20 years of limestone mining for cement production. First, we identified the tree species in nearby undisturbed tropical forests, followed by evaluating the similarities in functional traits of the most dominant one (target species) and 60 local candidate native plant species (candidate species) whose saplings can be purchased from a local market. This dataset was used in our trait-based protocol, and only within 1 month, we successfully selected eight plant species which are very similar to target species from the 60 candidate species. We also quantified whether the eight selected plant species were indeed suitable for sustained reforestation by testing their effects on landscape and also their survival rate and recruitment ability after using them to perform reforestation in BPL from 2016 to 2023. Finally, these eight plant species are indeed suitable for reforestation due to their huge influences on a significant shift from originally degraded landscape (comprising only barren rocks) to a forest landscape totally and also their high survival rate (90%-97%) and ability for natural recruitment after 7 years' reforestation in BPL. Thus, we anticipate that this protocol would be integral to species selection during reforestation of tropical mining areas.

Effects of uranium mining on the rhizospheric bacterial communities of three local plants on the Qinghai-Tibet Plateau.

In this study, we used 16S high-throughput sequencing to investigate the effects of uranium mining on the rhizospheric bacterial communities and functions of three local plant species, namely, Artemisia frigida, Acorus tatarionwii Schott., and Salix oritrepha Schneid. The results showed that uranium mining significantly reduced the diversity of rhizospheric bacteria in the three local plant species, including the Shannon index and Simpson index (P < 0.05). Interestingly, we found that Sphingomonas and Pseudotrichobacter were enriched in the rhizosphere soil of the three local plants from uranium mining areas, indicating their important ecological role. The three plants were enriched in various dominant rhizospheric bacterial populations in the uranium mining area, including Vicinamidobacteriaceae, Nocardioides, and Gaiella, which may be related to the unique microecological environment of the plant rhizosphere. The rhizospheric bacterial community of A. tatarionwii plants from tailings and open-pit mines also showed a certain degree of differentiation, indicating that uranium mining is the main factor driving the differentiation of plant rhizosphere soil communities on the plateau. Functional prediction revealed that rhizospheric bacteria from different plants have developed different functions to cope with stress caused by uranium mining activities, including enhancing the translational antagonist Rof, the translation initiation factor 2B subunit, etc. This study explores for the first time the impact of plateau uranium mining activities on the rhizosphere microecology of local plants, promoting the establishment of effective soil microecological health monitoring indicators, and providing a reference for further soil pollution remediation in plateau uranium mining areas.

Evaluating local plant species for effective fall armyworm management strategies in Taiwan

BackgroundThe emergence of Spodoptera frugiperda (fall armyworm; FAW) in the world has raised concerns regarding its impact on crop production, particularly on corn and sorghum. While chemical control and Bt crops have been effective in managing FAW damage, the development of pesticide-resistant and Bt-resistant strains necessitates alternative control methods. The push-pull farming system has gained attention, but direct utilization of African plant species in Taiwan faces challenges due to invasive potential and climatic disparities. Therefore, identifying and evaluating suitable local plant species, such as Napier grass (Pennisetum purpureum), Desmodium species, and signal grass (Brachiaria brizantha), is crucial for implementing effective FAW management strategies in Taiwan.ResultsIn screening fifty Napier grass germplasms, all demonstrated an antibiotic effect, reducing leaf consumption compared to corn. Notably, thirty-five germplasms exhibited robust antibiotic traits, decreasing FAW consumption and increasing mortality rates. Three Napier grass germplasms also attracted more female moths for oviposition. Further evaluation of selected Napier grass germplasms and signal grass demonstrated efficacy in reducing FAW larval weight and survival duration. Additionally, Desmodium species, particularly D. uncinatum, showed promising toxicity against FAW larvae.ConclusionOur findings support the effectiveness of selected Napier grass germplasms and signal grass as pull plants, and highlight the potential of D. uncinatum as a push plant in FAW management strategies in Taiwan.

Participatory inventory of plant-based ethnoveterinary medicine used to control internal parasites of goats in the Ngamiland region of Botswana

The effect of internal parasites on goats is of major concern, particularly in the tropics where there are limited resources and financially constrained farmers. The ethnic knowledge on controlling and treating internal parasites is of value to sustainable and organic product production which are essential for long-term prosperity of goat farmers. Using participatory approaches, this study identified and documented popular plants used by farmers to control internal parasites in goats in the Ngamiland region of Botswana. A total of 120 communal farmers were interviewed using a structured questionnaire consisting of demographic parameters and ethnobotanical information. The data was analysed using Statistical Package for the Social Sciences (SPSS) and the most popular plants were identified using fidelity levels (FL). Most of the informants were secondary educated males of 50 to 60 years and relied on livestock for their livelihoods. It was recorded that a total of 13 local plant species from 11 families are commonly used in the treatment of intestinal parasites in goats. The plant family Fabaceae (27.3 %) was common among the farmers. The roots (76.9 %) were the most frequently used plant part while decoction (46 %) was popular in medicinal preparations. The prepared plant-based medicine is often administered orally. The highest FL values were found for the following plant species; Terminalia sericea, Gnidia capitata and Aloe ferox, scoring 89.3 %, 88.0 % and 86.3 %, respectively. The safety and efficacy of these plants should be validated to inform strategic utilization and alternative cost-effective strategy in managing internal parasites in Botswana.

Sustainable Food Security: An Ethnobotanical Study of Dlingo Village, Grobogan Regency

Abstract The United Nation Sustainable Development Goals were designed as interrelated guidelines for the development of a better future for all mankind. the Covid 19 pandemic related shut down of trade and the post pandemic food shortages have put increasing pressure to develop locally based sustainable food security. This food security can be found in the self-sufficient semi-subsistence Javanese village community in Dlingo, Grobogan Regency. The efficient allocation of land resources through the systematic distribution of food crops from the sawah (paddy fields), kebun (gardens), common areas, and pekarangan (home gardens), along with dietary practices that utilize locally sourced components, contribute to an ideal state of food self-sufficiency. Through semi structured interviews and field observations, all local food plant species were catalogued and categorized by taxonomy, utility and cultural significance index. The staple foods: Rice (Oryza sativa L.) (50.00), corn (Zea mays L.) (44.70), and Casava (Manihot esculenta L.) (24,30) demonstrated the highest scores reflecting both the agricultural practice of corn-rice crop rotation and the dietary habits of Dlingo village that produce sego jagung, processed corn with a rice-like texture. Traditional salads such as urap-urapan, pecel, and rujak along with traditional soups such as jangan lodeh, jangan asem, and sop still dominates the dietary habits of people from Dlingo optimizing the local fruits, vegetables, and spices further sustainably providing food security.

Landscape context affects patch habitat contributions to biodiversity in agroecosystems

AbstractEffective conservation schemes are needed to advance the dual objectives of biodiversity conservation and agronomic production in agricultural landscapes. Understanding how plant and arthropod taxa respond to both local habitat patch characteristics and landscape complexity is crucial for planning effective agri‐environment schemes. This study investigated the relative effects of local variables (plant and insect diversity ≤100 m from patch habitat center) and landscape variables (landscape composition and configuration metrics ≤5 km from patch habitat center) on the diversity of plants and arthropods within noncrop habitat patches (1) at different spatial extents ranging from 0.1 to 5 km, while (2) quantifying differential effects of local and landscape variables on particular components of diversity (i.e., species richness and abundance), and accounting for (3) particular components of landscape extent (0.1‐, 0.5‐, 1‐, 2‐, and 5‐km radii) and complexity (i.e., landscape composition and configuration). Landscape variables were significantly correlated with local plant and arthropod species richness and abundance at all spatial extents. Biodiversity responses to landscape variables were largely scale‐dependent, as pairwise comparisons were significantly different between all spatial extents except between 1‐ and 2‐km extents, and correlations were lowest at the 5‐km extent. Partial R2 values for predicting local biodiversity were highest when both local and landscape variables were included as predictors of species richness and abundance, increasing from 0.163 to 0.469 when landscape variables were included, underscoring the importance of considering both local and landscape effects on local diversity. Landscape configuration variables accounted for more variation in plant and arthropod species richness than composition variables. However, models performed best when composition and configuration were considered together rather than alone, suggesting that both components of landscape complexity should be considered for identifying and managing conservation areas in crop fields. Existing conservation schemes that incentivize farmers to create or conserve seminatural patch habitat within crop fields may be more effective when combined with landscape‐scale designs that enhance landscape complexity across the Northern Great Plains. Local conservation efforts should be coordinated with landscape‐level efforts to ultimately enhance biodiversity and desired ecosystem service outcomes across agricultural landscapes.

An Ethnobotanical Survey of Plants Used by Communities around Jaunsar-Bawar Region of Uttarakhand, India

The Jaunsar Bawar region of Uttarakhand, India, is well-known for its rich biodiversity and cultural history, which is inseparably, connected through traditional ecological knowledge (TEK) and ethnobotanical traditions. This work explores the ethnobotanical knowledge and practices amongst the indigenous communities residing in the JaunsarBawar region, of 11 villages in three tehsils: Kalsi, Tyuni, and Chakrata of Uttarakhand state of India. With extensive field studies, literature reviews, surveys using standard questionnaires, and semi-structured interviews with local inhabitants including Vaidyas, Hakeem, and forest government officials, the study tends to document the rich biodiversity of the region and comprehend the relationship between humans and plants. It documents and explores the traditional usage of 65 plant species of different growth habits and forms for medicine, timber, food, fodder, culinary, rituals, and other purposes. Insights of the study aid in the documentation of local plant species and indigenous wisdom of plant use across generations in the tribal region.

INVENTORY AND STUDY PHARMACOLOGICAL POTENTIAL OF PLANTS IN THE PAJANGAN HAMLET, WEDOMARTANI, NGEMPLAK, SLEMAN, YOGYAKARTA

This research aims to inventory and study pharmacological potention of plants in Pajangan Hamlet, Wedomartani, Ngemplak, Sleman, Yogyakarta as medicinal plants and live stalls. The research was conducted from June to October 2023 using observational methods. Plants were identified with PlantNet software and reference againts the Flora of Java book. In addition, the study of the utilization of these plants was carried out by literature study and distributing questionnaires to the residents. The results found 104 plant species with 19 different families can be identified in Pajangan Hamlet. The plants are categorized as herbs, ornamental plants/flowers, fruits, vegetables, and wild plants. These findings highlight the richness of biodiversity in Pajangan Hamlet with significant potentital for improving health and economic livelihoods through the use of local plant species in traditional practices and diets. Based on the result, it can be concluded that Pajangan Hamlet has a variety of plants that are widely used in traditional medicine and food, thereby underscoring the importance of local biodiversity in improving health and well-being.

Improving soil health and carbon sequestration through land reclamation in shale gas fields: A case study from Fuling's Jiaoshi Town

This investigation delves into the impact of shale gas extraction and subsequent land reclamation on soil characteristics and plant carbon sequestration within the Fuling District, specifically focusing on Jiaoshi Town. Through meticulous sampling and analysis, the study evaluates modifications in soil's physical and chemical properties pre- and post-reclamation, encompassing pH, bulk density, moisture content, nitrogen, phosphorus levels, and heavy metal concentrations. Concurrently, the carbon sequestration potential of several reintroduced local plant species is assessed. Findings indicate a slight alkaline shift in soil pH post-reclamation, with notable improvements in soil structure, reflected by decreased bulk density and enhanced moisture content, fostering better conditions for plant growth. An increase in nitrogen and phosphorus content post-reclamation suggests enhanced soil fertility, pivotal for agricultural productivity. This research contributes to understanding the environmental restoration effectiveness following industrial disturbances, offering insights into optimizing reclamation practices for ecological balance and sustainable land management in shale gas-affected regions.

Bioclimatic and remote sensing factors are better key indicators than local topography and soil: Vegetation composition variability in forests of Pakistan's Spin Ghar Mountain range

The composition, structure and distribution of vegetation are influenced by diverse environmental factors. Such research inquiries provide the initial data for future conservation and management efforts. The study area of North Waziristan district, Khyber Pakhtunkhwa, Pakistan comprises diverse forests of the Spin Ghar Mountain Range (at the border areas of Pakistan and Afghanistan), and a highly remote, mountainous, and unexplored region. There was little information on the complex relationships that existed between the study area's ambient environment and vegetation. This study hypothesized that the varying environmental complexity in the study area and vegetation variety may be significantly correlated, and the ranking of leading influencing factors might enhance our ecological understanding. A total of 61 study sites comprising 183 transects (50 m each) were randomly selected to record the vegetation-environment data from January-2018 to December-2020 (3 years). Monte Carlo permutation testing, hierarchical clustering of study samples, indicator species analysis, and ordination were applied to assess the sampling data. The results indicated that there were a total of 391 vascular plant species which were further classified into seven significantly different (p < 0.05) plant assemblages, each comprising of a distinct species makeup. A variety of different environmental variables (topographic (06), bioclimatic (19), edaphic (09), remote sensing, and anthropogenic predictors (16)) were considered. Simple term effects testing results depicted the significant (p(adj) < 0.05) role of 39 variables initially, whereas, conditional term effects testing (with variance inflation factor (VIF) threshold value of < 10, and forward selecting variables that provided the most unique information) results highlighted the prominent role of eight (08) contributors. The results of the latter analysis ranked the mean temperature of the warmest quarter (Bio10) as the most influencing factor, followed by Normalized Difference Vegetation Index (NDVI), longitude, continuous heat insulation load index (CHILI), precipitation of the warmest quarter (Bio18), global human modification of the terrestrial systems (gHM), organic carbon density (OCD), and annual precipitation (Bio12). This study concluded that the vegetation variability in the study area was significantly correlated with the prevailing environment, and considered bioclimatic and remote sensing factors were better key indicators for any vegetation distribution when the study was conducted on a large spatial scale. Based on these results, the anticipated future variations in climate, particularly global warming, lengthy drought spells, and population explosion might remarkably lead to decline in local plant species richness and distribution. For the study area to guard its priceless biodiversity for future generations, careful and prompt conservation and management planning are required.

Evaluation of Public Gardens in Terms of the Relationship Between Climate and Design

National gardens are an important element of green spaces in today's cities, meeting the needs of the community for recreation, sports and interaction. However, environmental and social challenges facing cities are leading to changes in the design and function of these gardens. The concept of resilient cities refers to the resilience of cities against natural disasters, climate change and other risks. National gardens can be designed as an important part of becoming resilient cities. Equipping these gardens with structures resistant to various natural disasters and adopting sustainable practices such as water management can increase the overall resilience of the city. Sustainable city and eco-city concepts are also important elements to consider in the design of community gardens. These concepts include principles such as environmental sustainability, energy efficiency and strengthening green infrastructure. National gardens can be equipped with sustainable practices such as rainwater recycling systems, the use of local plant species and waste management. Nation gardens designed in this way not only provide recreation and relaxation for city residents, but also contribute to the environmental and social sustainability of the city. In addition, these gardens encourage community cohesion and solidarity. As a result, community gardens are important elements of resilient, sustainable and ecologically balanced cities. Adopting the principles of resilient city, sustainable city and eco-city in the design and management of these gardens can help cities meet future challenges and improve their livability.

Plant and soil microbial community assembly processes across urban vacant lots

AbstractQuestionsNumerous studies on community assembly processes have been conducted in natural ecosystems. However, we know little about community assembly processes in human‐dominated urban ecosystems. Here, we asked: (1) how are the composition and functional diversity of native and exotic plant species shaped by local environment and landscape factors across urban vacant lots; and (2) how is microbial (bacterial and fungal) community composition influenced by the local environment, landscape factors, and plant species composition across urban vacant lots?LocationWe investigated 69 urban vacant lots in Yokohama, Japan.MethodsBy using a variation partitioning approach, we examined the relative importance of local environmental and landscape factors (including land use and spatial structure) in explaining variation in plant species composition and functional diversity of native or exotic species. We also explored the relative importance of local environmental and landscape factors, and plant species composition in explaining variation in microbial community composition.ResultsThe spatial structure of vacant lots determined the species composition and functional diversity of plant communities, suggesting that plant community assembly is determined by dispersal limitation. However, the functional diversity of the exotic species varied randomly, which reduced the relative importance of the spatial structure of vacant lots. Plant species composition as well as the spatial structure of vacant lots were the important drivers of the composition of soil microbial communities, despite a higher proportion of unexplained variation in their composition. Finally, we found an essential contribution of earthmoving methods in explaining the variations in both plant and microbial community composition.ConclusionPlant and microbial community composition would be largely determined by dispersal limitation across urban vacant lots. Understanding urban community assembly is critical for predicting plant and microbial communities that play an essential role in regulating urban ecosystem functioning and services.

Terracing as an Old-Style Scheme of Soil Water Preservation in Djingliya-Mandara Mountains- Cameroon

The relief and high population densities of ≥150 inhabitants/Km2in the Mandara Mountains and the drastic displacement of internally displaced persons towards these Mountains have brought about severe effects on water and soil resources. This environmental and socio-political crisis, have made agricultural production not to meet demand for food and hundreds of these rural people go hungry each day. This has constrained the inhabitants to develop various tactics of soil water preservation and landscape restoration towards fighting deficiencies in crop production to ensure food security. This study analyzes terracing as a traditional system of soil water conservation adopted by the farmers in Djingliya villages found on the Mandara Mountains. Through secondary source of information, field observation, interviews and questionnaires administered on 100 persons in five villages of the study area, results show that: soil degradation via soil resources overuse and erosion is checked by terraces. Also, the tendency of adopting local techniques is harnessed through the cultivation of plants which increase infiltration, agroforestry, crop rotation practices, Forest Landscape Conservation, Mosaic Landscape Restoration and Valorizing Local Plant Species to ensure sustainable farming activities that restore degraded land in general and terraces in particular.

Species richness: A pivotal factor mediating the effects of land use intensification and climate on grassland multifunctionality

Abstract Temperate seminatural grasslands harbour unique biodiversity, support livestock farming through forage production, and deliver many essential ecosystem services (ESs) to human society; they are highly multifunctional. However, temperate grassland ecosystems are also among the most threatened ecosystems on earth due to land use and climate changes. Understanding how biodiversity, climate and land use intensification impact grassland multifunctionality through complex direct and indirect pathways is critical to better anticipate the future of these fragile ecosystems. Here, we evaluate how local plant species richness (SR) modulates the effect of land use intensification and climate on grassland multifunctionality (using six key ESs: biomass productivity and stability, forage quality, carbon storage, pollination and local plant rarity) in the French Massif Central, the largest grassland in Western Europe. We sampled 100 grasslands with contrasted fertilization rates and SR, over large elevational and latitudinal gradients related to variation in mean annual temperature (MAT), and drought severity (DS), two key climate change drivers predicted to increase in the future. Using a confirmatory path analysis, we found that SR was the main driver of multifunctionality. We also found significant SR × MAT and SR × fertilization interactions suggesting that warm climate and high fertilization rates alter the biodiversity–ecosystem multifunctionality relationships. Furthermore, increasing temperature and fertilization indirectly influenced multifunctionality by decreasing SR and consequent multifunctionality in warm lowland and highly fertilized grasslands compared to colder montane grasslands or less fertilized ones. DS only impacted some ES individually (e.g. forage quality). Synthesis and applications: We identified species richness (SR) as a pivotal factor mediating the effects of land use intensification and climate on multifunctionality through both direct and indirect pathways. Failing to account for changes in SR could thus bias any prediction of, or aggravate, the effects of land use intensification and climate change on ecosystem services delivery in temperate grassland ecosystems. Considering that SR, mean annual temperature and fertilization are major proxies of three main global change drivers (biodiversity loss, climate change and land use intensification) our study may help to better anticipate the effect of multiple interacting global change drivers on grassland ecosystems.

A Review on the Distribution, Economic Importance and Nutritional Value of Underutilized Plants in Sikkim's Agricultural Scenario

This literature review provides a brief reference to the current status and socio-economic importance of some of the selected underutilized crops of Sikkim. Some wild fruits show great potential for cultivation due to their high antioxidant content, good fat, medicinal biochemicals, and even higher fruit yield per tree compared to commercial plant varieties, making them horticulturally competent for cultivation. The use of these wild local plant species as a supplementary food reserve holds promise. The avocado crop is versatile and can be utilized in various ways, such as for producing processed goods, for export, for oil extraction, and as a raw material in the pharmaceutical and cosmetic industries, thereby generating high-value products. There is a significant interest in this crop in different parts of India, including Eastern India, as indicated by the high demand for information on avocados.