Acta Geographica Sinica ›› 2014, Vol. 69 ›› Issue (11): 1640-1650.doi: 10.11821/dlxb201411005

• Orginal Article • Previous Articles     Next Articles

Disturbance impacts of land use change on biodiversity conservation priority areas across China during 1990-2010

Guosong ZHAO1,2,3(), Jiyuan LIU1,2(), Wenhui KUANG1,2, Zhiyun OUYANG4   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. Key Laboratory of Land Surface Pattern and Simulation, CAS, Beijing 100101, China
    3. University of Chinese Academy of Sciences, Beijing 100049, China
    4. Research Center of Eco-Environmental Sciences, Beijing 100085, China
  • Received:2014-03-18 Revised:2014-05-21 Online:2014-11-20 Published:2014-12-26
  • Supported by:
    National Key Basic Research Program of China, No.2014CB954302;National Science-technology Support Plan Project, No.2013BAC03B04

Abstract:

Considering the impacts of land use change on biodiversity conservation services of varied ecosystems, the Ecosystem Comprehensive Anthropogenic Disturbance Index (ECADI) is built to assess disturbance impacts of land use change during 1990-2010 on biodiversity conservation priority areas of China at national and regional scales. Four levels of biodiversity conservation areas are categorized: generally important areas, moderately important areas, important areas, and very important areas. Results showed that: In 2010, the ECADI value is higher in Central and Eastern China than that in Western China, and the values of the moderate important, important and very important regions are lower than the average value of the whole country at all levels. Notably, in recent 20 years, the change extent of ECADI in Central and Eastern China was much greater compared with that in Western China, and the change extent of ECADI in the moderately important, important and very important biodiversity conservation regions all showed slightly increasing trends, with the increasing degree lower than that of whole China at all levels. Due to human activities such as urbanization in Eastern China and cropland reclamation in Northeast China and Xinjiang, ECADI value in the moderately important, important and very important biodiversity conservation areas showed an increasing trend, which should be given more attention. However, ECADI value in the Loess Plateau presented a decreasing trend because of the obvious effectiveness of Green for Grain Project. Furthermore, the variation was negligible in the Tibetan Plateau.

Key words: land use, biodiversity, disturbance, change trend, China