辽宁省生态系统敏感性评价

根据辽宁主要生态环境问题的形成机制,分析了生态系统敏感性的区域分异规律,并对多种生态环境问题的敏感性进行了综合分析。结果表明,全省处于轻度至高度敏感区域,高度敏感区、中度敏感区、轻度敏感区分别占全省陆域面积的34.00%、62.66%和3.34%。高度敏感区分布在辽东山地丘陵、辽东半岛、辽西低山丘陵、辽西北、柳绕地区和大洼县。辽东山地丘陵、辽东半岛和辽西低山丘陵主要是土壤侵蚀高度敏感。辽西北和柳绕地区主要是土地沙漠化高度敏感。大洼县是土壤盐渍化高度敏感。

Ecosystem sensitivity assessment of Liaoning Province

Based on the formation mechanisms of the main eco-environmental problems in Liaoning Province,this paper studied the regional differentiation patterns of ecosystem sensitivity,and analyzed the sensitivities of manifold eco-environmental problems in the Province.The results showed that the areas of high,medium,and low ecosystem sensitivity in the Province occupied 34%,62.66%,and 3.34 % of its total terrestrial area,respectively.High ecosystem sensitivity area mainly distributed in east Liaoning mountainous region,Liaodong peninsula,west Liaoning hilly region,northwest Liaoning,Liurao area,and Dawa County,among which,east Liaoning mountainous region,Liaodong peninsula and west Liaoning hilly region were of high sensitivity on soil erosion,northwest Liaoning and Liurao area were of high tenderness on desertification,and Dawa County was delicate in soil salinization.