摘要
以松嫩平原西部为例,在构建生态环境胁迫评价指标体系的基础上,运用分形理论对生态环境胁迫进行量化研究。结果表明,1989—2004年15 a间,除松原市和扶余县以外,其他县市生态环境胁迫系数都呈增大趋势,特别是大安市、长岭县、乾安县等地胁迫系数较大。采用相对指标法,运用GIS-EIS集成技术,对松嫩平原西部生态环境胁迫度进行分级。最后,分析了影响生态环境胁迫变化的驱动因子,并提出减缓生态环境胁迫的措施。
With the West Songnen Plain cited for case study, the fractal theory was applied to quantitative study of eco-environmental stress of that region, based on the construction of an eco-environmental stress assessment index system. Results show that stress coefficient demonstrated a rising trend from 1989 to 2004 in the whole region, except for Songyuan City and Fuyu County. The rising trend was especially significant in Da＇an City, Changling County and Qian＇an County. With the aid of the GIS-EIS technology and the relative index method, environmental stress of the region was graded and its driving factors analyzed. On such a basis, countermeasures are put forth for mitigating the eco-environmental stresses.
出处
《生态与农村环境学报》
CAS
CSCD
北大核心
2007年第3期9-15,共7页
Journal of Ecology and Rural Environment
基金
国家自然科学基金(40572170)
国家教育部博士点基金(20050183056)
关键词
生态环境胁迫
分形理论
胁迫系数
松嫩平原西部
eco-environmental stress
fractal theory
stress coefficient
West Songnen Plain
