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[1]GAO Zhenxiang,YE Jian,DING Renhui,et al.Response of Vegetation Gross Primary Productivity to Climate Change in China[J].Research of Soil and Water Conservation,2022,29(04):394-399+414.

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Response of Vegetation Gross Primary Productivity to Climate Change in China

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 29 Number of periods: 2022 04 Page number: 394-399+414 Column: Public date: 2022-06-20

Title:: Response of Vegetation Gross Primary Productivity to Climate Change in China

Author(s):: GAO Zhenxiang¹, YE Jian¹, DING Renhui², TANG Huan¹, ZHOU Honggen², LI Cheng³; (1.Suqian Municipal Meteorological Bureau, Suqian, Jiangsu 223800, China; 2.Jiangsu Municipal and Technical Equipment Centre, Nanjing 210008, China; 3.College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu 225009, China)

Keywords:: gross primary productivity; climate change; driving factors; China

CLC:: Q948

DOI:: -

Abstract:: In order to understand the variation characteristics of vegetation gross primary productivity(GPP)in China, based on improved EC-LUE model, the spatiotemporal-variations and driving factors of GPP over China from 1982 to 2016 were analyzed. The results show that:(1)the average annual GPP in China during the 35 years ranged from 0 to 3 051.08 g C/(m²·a), which was higher in the northern China than that in the southern region; the high-value area mainly distributed in the southern and southeast of China, while the low-value area was located in the Qinghai-Tibet Plateau, Xinjiang, and western Inner Mongolia;(2)on the whole, overall GPP showed an increasing trend with an average annual growth rate of 2.43 g C/(m²·a); in particular, vegetation GPP in the Loess Plateau had a significant increasing trend, but it showed a significant decrease in parts of the northeast and southeast regions;(3)the vegetation GPP of China had positive correlations with temperature and precipitation, the air temperature and accumulated precipitation were strong drivers accounting for 8.1%, the air temperature drivers accounted for 25.3%, the accumulated precipitation driver accounted for 15.1%, and the air temperature and accumulated precipitation were weak drivers accounted for 8.9%. Although the vegetation carbon sequestration capacity in China had the improving trend, but the ecological protection work will have a long way to go under the background of uncertainty climate change in future.

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Last Update: 2022-06-20