搜索结果: 1-10 共查到“理学 grasslands”相关记录10条 . 查询时间(0.038 秒)
Environmental change is triggering an identity switch in grasslands（图）
Environmental change triggering identity switch grasslands
2019/10/21
Since the first Homo sapiens emerged in Africa 300,000 years ago, grasslands have sustained humans and thousands of other species. Today, those grasslands are shifting. Global change -- including clim...
Rising Temperatures Threaten Stability of Tibetan Alpine Grasslands
Rising Temperatures Threaten Alpine Grasslands
2017/7/20
A warming climate could affect the stability of alpine grasslands in Asia’s Tibetan Plateau, threatening the ability of farmers and herders to maintain the animals that are key to their existence, and...
Effects of grazing on leaf traits and ecosystem functioning in Inner Mongolia grasslands: scaling from species to community
grazing on leaf traits ecosystem functioning Inner Mongolia grasslands scaling from species to community
2015/2/4
Understanding the mechanistic links between environmental drivers, human disturbance, plant functional traits, and ecosystem properties is a fundamental aspect of biodiversity-ecosystem functioning re...
Tradeoffs and thresholds in the effects of nitrogen addition on biodiversity and ecosystem functioning: evidence from inner Mongolia Grasslands
aboveground biomass ecological restoration ecosystem management Eurasia steppe nitrogen enrichment plant functional group composition species richness
2015/2/4
Nitrogen (N) deposition is widely considered an environmental problem that leads to biodiversity loss and reduced ecosystem resilience; but, N fertilization has also been used as a management tool for...
Response of temperate grasslands at different altitudes to simulated summer drought differed but scaled with annual precipitation
temperate grasslands simulated summer drought annual precipitation
2010/1/21
Water is an important resource for plant life. Since climate scenarios for Switzerland predict an average reduction of 20% in summer precipitation until 2070, understanding ecosystem responses to wate...
Biodiversity for multifunctional grasslands:equal productivity in high-diversity low-input and low-diversity high-input systems
Biodiversity multifunctional grasslands equal productivity high-diversity low-input
2010/1/20
Modern grassland management seeks to provide many ecosystem services and experimental studies in resource-poor grasslands have shown a positive relationship between plant species richness and a variet...
Biomass production in experimental grasslands of different species richness during three years of climate warming
Biomass production experimental grasslands species richness climate warming
2010/1/15
Here we report on the single and combined impacts of climate warming and species richness on the biomass production in experimental grassland communities. Projections of a future warmer climate have s...
Variability of annual CO2 exchange from Dutch grasslands
Variability annual CO2 exchange Dutch grasslands
2010/1/14
An intercomparison is made of the Net Ecosystem Exchange of CO2, NEE, for eight Dutch grassland sites: four natural grasslands, two production grasslands and two meteorological stations within a rotat...
Community shifts and carbon translocation within metabolically-active rhizosphere microorganisms in grasslands under elevated CO2
Community shifts carbon translocation metabolically-active rhizosphere microorganisms
2010/1/14
The aim of this study was to identify the microbial communities that are actively involved in the assimilation of rhizosphere-C and are most sensitive in their activity to elevated atmospheric CO2 in ...
Long-term steady state 13C labelling to investigate soil carbon turnover in grasslands
Long-term steady state 13C soil carbon turnover grasslands
2010/1/14
We have set up a facility allowing steady state 13CO2 labeling of short stature vegetation (12 m2) for several years. 13C labelling is obtained by scrubbing the CO2 from outdoors air with a self-regen...