نتایج جستجو برای: some such processes as normalized difference vegetation index
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Quantitative plant species ?-diversity of grasslands at multiple spatial and temporal scales is important for investigating the responses biodiversity to global change protecting under change. Potential (i.e., SRp, Shannonp, Simpsonp Pieloup: potential richness, Shannon index, Simpson index Pielou respectively) were quantified by climate data annual temperature, precipitation radiation) actual ...
Over the last century the Northern Hemisphere has experienced rapid climate warming, but this warming has not been evenly distributed seasonally, as well as diurnally. The implications of such seasonal and diurnal heterogeneous warming on regional and global vegetation photosynthetic activity, however, are still poorly understood. Here, we investigated for different seasons how photosynthetic a...
It has been shown that vegetation growth in semiarid regions is important to the global terrestrial CO2 sink, which indicates the strong need for improved understanding and spatially explicit estimates of CO2 uptake (gross primary production; GPP) in semi-arid ecosystems. This study has three aims: (1) to evaluate the MOD17A2H GPP (collection 6) product against GPP based on eddy covariance (EC)...
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