Welcome to Chinese Journal of Ecology! Today is Share:

cje

• Articles • Previous Articles     Next Articles

Evaluation method of agro-ecosystem vulnerability.

ZHAO Yan-xia1; HE Lei2;LIU Shou-dong2; LIU Wen-quan3; HE Yong4; ZHANG Jian-ping5   

  1. 1Key Laboratory for Atmospheric Chemistry of Chinese Meteorological Administration, Center for Atmosphere Watch and Services, Chinese Academy of Meteorological Sciences, Beijing 100081, China;2Nanjing University of Information Science & Technology, Nanjing 210044, China;3Department of Science and Technology Development, Chinese Meteorological Administration, Beijing 100081, China;4National Climate Center, Beijing 100081, China;5Chongqing Meteorological Bureau, Chongqing 400039, China
  • Received:2006-06-29 Revised:1900-01-01 Online:2007-05-08 Published:2007-05-08

PDF (PC)

1039

Abstract: Evaluation of agro-ecosystem vulnerability is of significance in mitigating the negative impacts of climate and environment changes. Many researches aiming at different ecosystems have been made in recent ten years, but no generally recognized and identical methods were put forward. The farming-pastoral ecotone in northern China is a typical agro-ecosystem vulnerable region. Taking this area as an example and based on the analysis of the main factors affecting the vulnerability, an evaluation indices system of agro-ecosystem was built, with 17 indices of 4 types included. The weight of each index was determined by using analytical hierarchy process, and the method for comprehensively and quantitatively evaluating the vulnerability of agro-ecosystem was established based on the principles of fuzzy estimate.

Key words: Polycyclic aromatic hydrocarbons (PAHs), Glucose, Sphingonumas sp.