Measuring gross ecosystem product (GEP) of 2015 for terrestrial ecosystems in China
MA Guo-xia1, YU Fang1, WANG Jin-nan1, ZHOU Xia-fei1, YUAN Jing1, MOU Xue-hua1, ZHOU Ying1, YANG Wei-shan1,2, PENG Fei1
Chinese Academy for Environmental Planning, Beijing 100012, china;
2. Institute of Science and Development, Chinese Academy of Sciences, Beijing 100190, China
We evaluated China's Gross Ecosystem Product (GEP) for terrestrial ecosystems in 2015. Six land use types of terrestrial ecosystems (forest, wetland, grassland, cropland, urban, desert) were included in the analysis; GEP of thirty one provinces and autonomous regions of China were reported and contrasted. An index comparing the natural capital to the built capital called GGI (GEP to GDP Index) was introduced. The results indicate that: GEP for terrestrial ecosystems of 2015 was ¥72.81 trillion, the national GGI was 1.01. At provincial level, Tibet and Qinghai ranked first and second as measured by GGI. Among all the ecosystem services we evaluated, regulation service values ¥53.14 trillion, accounting for 73% of GEP. For six land use types, wetland provides services worth of ¥28.08 trillion, accounting for 42.4% of GEP; followed by the forest and grassland which is ¥19.89 trillion and ¥10.66 trillion accounting for 30% and 16.1% of GEP respectively. Spatial distribution of GEP per capita and GEP per unit area varies significantly among regions in China, the GEP per capita in the western China is higher than eastern China.
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