TY  - Data
T1  - MOD17A3HGF Net Primary Productivity NPP Data in Gansu Province (2000-2022)
A1  - Zhang yaonan
DO  - 10.12072/ncdc.gseer.db4148.2023
PY  - 2023
DA  - 2023-12-27
PB  - National Cryosphere Desert Data Center
AB  - Net Primary Productivity (NPP) of vegetation is the net increase in biomass per unit area per unit time obtained by terrestrial vegetation through photosynthesis to fix solar energy. NPP, as an important component of carbon cycling in terrestrial ecosystems, plays a crucial role in controlling the increase of CO ₂ concentration in the atmosphere. It is the result of the mutual adaptation between the biological characteristics of plants and the external environment. It is not only the material and energy basis for the survival of heterotrophic organisms, but also a key link in the biogeochemical cycle. It is one of the important indicators for evaluating the stability of ecological structure and function. Due to the direct impact of photosynthesis on vegetation's NPP, the Normalized Difference Vegetation Index (NDVI) can accurately reflect the greenness of vegetation and the intensity of photosynthesis. Therefore, in regional and global ecosystem models, NDVI is often directly or indirectly used to calculate vegetation NPP.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/918cf2b9-589a-48fe-acc8-87510cdd21fb
ER  -