Lin Haiming, Xie Peng
Agricultural Ecology and Engineering Institute, Gansu Agricultural University, Lanzhou 730070, China.
Ying Yong Sheng Tai Xue Bao. 2004 May;15(5):827-32.
This paper studied the dynamics of ecological footprints (EF), degree of sustainable development and its tendency of Hexi oasis agricultural region in Gansu. The results showed that the EF displayed an increasing trend from 0.426 hm2 to 2.158 hm2 in 1949-2000, which was 0.693 hm2 in 1949-1970, 1.029 hm2 in 1975-1980, and 2.288 hm2 in 1985-2000. The ecological capacity (EC) was also increased from 0.550 hm2 in 1949 to 1.762 hm2 in 2000. Comparing with EF, the EC increased at low speed, which reached 0.782 hm2 in 1949-1970 and 1.715 hm2 in 1975-2000. Meanwhile, the sustainable development of Hexi region maintained ecological remainder during 1949-1975. However, it emerged ecological deficit in 1980, and resumed in 1985. The sustainable development of Hexi region has been successive ecological deficit since 1991. The degree was keeping negative increment at acceleration, and got to -0258 hm2 in 1991-2000. These results showed that the regional economic development of Hexi region was far away from sustainable development, and was in no-sustainable state.
本文研究了甘肃河西绿洲农业区生态足迹（EF）、可持续发展程度及其趋势。结果表明，1949—2000年生态足迹呈增加趋势，从0.426公顷增至2.158公顷，其中1949—1970年为0.693公顷，1975—1980年为1.029公顷，1985—2000年为2.288公顷。生态承载力（EC）也从1949年的0.550公顷增至2000年的1.762公顷。与生态足迹相比，生态承载力增速较慢，1949—1970年为0.782公顷，1975—2000年为1.715公顷。同时，河西地区在1949—1975年保持生态盈余实现可持续发展，但在1980年出现生态赤字，1985年恢复。河西地区自1991年以来持续出现生态赤字，且程度呈加速负增长，1991—2000年达到-0.258公顷。这些结果表明，河西地区的区域经济发展远未实现可持续发展，处于不可持续状态。
