中国净生态系统生产力数据集（2001-2023年）

数据集包括中国2001-2023年逐年的植被净生态系统生产力(net ecosystem productivity，NEP)，共23个图层。NEP的定义为生态区内植被净初级生产力（Net Primary ProductivityNPP）与土壤微生物呼吸碳排放（RH）的差值。源数据植被NPP数据来源于MOD17A3HGF V6产品提供的500m空间分辨率的逐年NPP数据。植被净生态系统生产力作为陆地生态过程的重要参数，不仅可以在一定程度上体现气候变化和人类社会经济活动对陆地植被的影响，还是测定陆地生态系统碳收支和衡量其碳源/汇作用的重要指标。

This dataset contains annual vegetation net ecosystem productivity (NEP) data for China from 2001 to 2023, with a total of 23 raster layers. NEP is defined as the difference between vegetation net primary productivity (NPP) within the ecological region and the carbon emission from soil microbial respiration (RH). The source vegetation NPP data is derived from annual NPP data with 500-meter spatial resolution provided by the MOD17A3HGF V6 product. As a critical parameter of terrestrial ecological processes, vegetation NEP can not only reflect the impacts of climate change and human socio-economic activities on terrestrial vegetation to a certain extent, but also serve as a key indicator for measuring the carbon budget of terrestrial ecosystems and evaluating their carbon source/sink functions.

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背景概述

该数据集提供了中国2001年至2023年逐年净生态系统生产力（NEP）数据，空间分辨率为500米，共23个图层，数据量为4.71 GB。NEP通过植被净初级生产力与土壤微生物呼吸碳排放的差值计算，源自MOD17A3HGF V6产品，用于评估陆地生态系统碳收支和碳源/汇作用，是研究气候变化和人类活动对植被影响的重要资源。数据需通过在线订单获取，并遵循特定的引用和致谢规范。