نتایج جستجو برای: alpine grassland
تعداد نتایج: 19851 فیلتر نتایج به سال:
greenhouse gases emissions have increased during the last century due to human activities such as agricultural practices, fossil fuel burning and industrial practices. the formation of greenhouse gases, in particular n2o or co2 is strongly controlled by both soil temperature and soil humidity. laboratory experiment was conducted to assess the response of grassland and arable soils with regard t...
Although alpine grassland net primary productivity (NPP) plays an important role in balancing the carbon cycle and is extremely vulnerable to climate factors, on Tibetan Plateau, generalized effect of factors NPP areas with humid arid conditions still unknown. Hence, we determined effects precipitation temperature MODIS from 2001 2019 according information climatic regions. On a spatial scale, ...
The response of soil microbial decomposition organic carbon (C) to temperature variation against an average warming background is great importance understand how climate change affects the ecosystem C cycling. In this study, a and step-wised stop-warming experiment was conducted examine whether respiration (Rs) heterotrophic (Rh) persists post-warming underlying mechanisms. treatment plots (10 ...
Grassland had been interpreted with the method that combined supervised and non-supervised classifications using Landsat data in autumns 1986, 1996 and 2000. The amelioration of algorithm promoted the accuracy. With the support of RS and GIS, spatial information of grassland landscape in west Jilin province from 1986 to 2000 was extracted, spatio-temporal dynamics of grassland and change of gra...
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