辽西低山丘陵区生态系统退化程度的定量确定  

Quantitative measurement on degradation degree of ecosystem in hilly region of western Liaoning Province.

作　　者：杜晓军[1] 姜凤岐[1] 沈慧[1] 林鹤鸣[1] 郭浩王世忠 

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110016 [2]辽宁省干旱地区造林研究所,叶柏寿122400

出　　处：《应用生态学报》2001年第1期156-158,共3页Chinese Journal of Applied Ecology

基　　金：国家"九五"重点科技攻关项目!(96 0 0 7 0 1 0 6)

摘　　要：Exactly measuring the degradation degree of ecosystems is the basis and precondition of restoring ecosystems. At present,degradation degree is usually analyzed qualitatively.In this paper,quantitative classification method was used to study the degradation degree of ecosystem in hilly region of western Liaoning,which was measured by the degradation degree of habitat.The result shows that the habitat in the northern slope of mountains has been degraded to certain stage between shrubbery and pioneer tree forest,which provides theoretical basis for vegetation restoration practice. Moreover,the result is beneficial for studying the degradation degree of ecosystems in other regions or of other types.Exactly measuring the degradation degree of ecosystems is the basis and precondition of restoring ecosystems. At present,degradation degree is usually analyzed qualitatively.In this paper,quantitative classification method was used to study the degradation degree of ecosystem in hilly region of western Liaoning,which was measured by the degradation degree of habitat.The result shows that the habitat in the northern slope of mountains has been degraded to certain stage between shrubbery and pioneer tree forest,which provides theoretical basis for vegetation restoration practice. Moreover,the result is beneficial for studying the degradation degree of ecosystems in other regions or of other types.

关 键 词：辽西 生态系统 退化程序 定量确定 

分 类 号：Q146[生物学—生态学] X171.4[生物学—普通生物学]