Earth's Future (Jul 2022)

Human‐Climate Coupled Changes in Vegetation Community Complexity of China Since 1980s

  • Yanjun Su,
  • Qinghua Guo,
  • Hongcan Guan,
  • Tianyu Hu,
  • Shichao Jin,
  • Zhiheng Wang,
  • Lingli Liu,
  • Lin Jiang,
  • Ke Guo,
  • Zongqiang Xie,
  • Shazhou An,
  • Xuelin Chen,
  • Zhanqing Hao,
  • Yuanman Hu,
  • Yongmei Huang,
  • Mingxi Jiang,
  • Jiaxiang Li,
  • Zhenji Li,
  • Xiankun Li,
  • Xiaowei Li,
  • Cunzhu Liang,
  • Renlin Liu,
  • Qing Liu,
  • Hongwei Ni,
  • Shaolin Peng,
  • Zehao Shen,
  • Zhiyao Tang,
  • Xingjun Tian,
  • Xihua Wang,
  • Renqing Wang,
  • Yingzhong Xie,
  • Xiaoniu Xu,
  • Xiaobo Yang,
  • Yongchuan Yang,
  • Lifei Yu,
  • Ming Yue,
  • Feng Zhang,
  • Jun Chen,
  • Keping Ma

DOI
https://doi.org/10.1029/2021EF002553
Journal volume & issue
Vol. 10, no. 7
pp. n/a – n/a

Abstract

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Abstract Vegetation community complexity is a critical factor influencing terrestrial ecosystem stability. China, the country leading the world in vegetation greening resulting from human activities, has experienced dramatic changes in vegetation community composition during the past 30 years. However, how China's vegetation community complexity varies spatially and temporally remains unclear. Here, we examined the spatial pattern of China's vegetation community complexity and its temporal changes from the 1980s to 2015 using two vegetation maps of China as well as more than half a million field samples. Spatially, China's vegetation community complexity distribution is primarily dominated by elevation, although temperature and precipitation can be locally more influential than elevation when they become the factors limiting plant growth. Temporally, China's vegetation community complexity shows a significant decreasing trend during the past 30 years, despite the observed vegetation greening trend. Prevailing climate warming across China exhibits a significant negative correlation with the decrease in vegetation community complexity, but this correlation varies with biogeographical regions. The intensity of human activities have an overall negative influence on vegetation community complexity, but vegetation conservation and restoration efforts can have a positive effect on maintaining vegetation composition complexity, informing the critical role of vegetation management policies in achieving the sustainable development goal.

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