TY  - Data
T1  - NPP data of mod17a3hgf net primary productivity in Jinghe River Basin (2000-2021)
A1  - Zhang yaonan
DO  - 10.12072/ncdc.JRiver.db1981.2022
PY  - 2022
DA  - 2022-04-08
PB  - National Cryosphere Desert Data Center
AB  - Net primary productivity (NPP) of vegetation is the net increase of biomass per unit area in unit time by fixing solar energy through photosynthesis. NPP, as an important component of carbon cycle in terrestrial ecosystem, plays an important role in controlling the rise of carbon monoxide 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 the key link of biogeochemical cycle. It is one of the important indexes to evaluate the functional stability of ecological structure. Because photosynthesis directly affects the NPP of vegetation, and the normalized difference vegetation index (NDVI) can accurately reflect the greenness of vegetation and the intensity of photosynthesis, NDVI is often directly or indirectly used to calculate the NPP of vegetation in regional and global ecosystem models.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/eb7d013c-4d47-4745-8e98-0ce182221587
ER  -