نتایج جستجو برای: alpine grassland
تعداد نتایج: 19851 فیلتر نتایج به سال:
Historical context modifies plant diversity–community productivity relationships in alpine grassland
Abstract While most studies yield positive relationships between biodiversity (B) and ecosystem functioning (EF), awareness is growing that BEF can vary with ecological context. The has led to increased efforts understand how contemporary environmental context modifies relationships, but the role of historical context, mechanisms by which it may influence effects, remains poorly understood. We ...
Mountain ecosystems are characterized by a diverse range of climatic and topographic conditions over short distances and are known to shelter a high biodiversity. Despite important progress, still little is known on bacterial diversity in mountain areas. Here, we investigated soil bacterial biogeography at more than 100 sampling sites randomly stratified across a 700-km2 area with 2,200-m eleva...
Features provide a comprehensive global overview of extent and diversity of grasslands. Analyzes how humans shaped grasslands through millennia of use and which role they play in present-day agriculture. Quantifies the role of grasslands as biodiversity hotspots as well as the drivers threatening these. Evaluates the ecosystem services grasslands provide e.g. in terms of soil protection and car...
Grassland species diversity monitoring is essential to grassland resource protection and utilization. “Spectral variation hypothesis” (SVH) provides a remote sensing method for at pixel scale by calculating spectral heterogeneity. However, the spectrum easily affected soil other background factors in natural grassland. Unmanned aerial vehicle (UAV)-based imaging spectroscopy possibility of info...
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