图们江下游地区湿地生态评价  被引量:15

Ecological Evaluation of the Wetland in the Downstream Ragion of Tumen River

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作  者:王琪[1,2] 朱卫红[1,2] 张达[1,2] 刘志峰[2] 孙鹏[1,2] 

机构地区:[1]长白山生物资源与功能分子教育部重点实验室,吉林延吉133002 [2]延边大学理学院地理系,吉林延吉133002

出  处:《湿地科学》2010年第1期79-85,共7页Wetland Science

基  金:国家自然科学基金资助项目(40461007);国家自然科学基金项目(40961011);延边大学211工程项目资助

摘  要:根据对图们江下游地区典型湿地的实地调查,借鉴国内外湿地生态评价的指标和方法,结合本区的实际情况,选用反映湿地生态保护功能和服务功能的13项指标,运用层次分析法对图们江下游地区湿地进行生态评价。先确定评价指标的权重、序次,再对生态评价因子进行等级化处理,然后为评价因子赋分,计算综合的评价指数(CEI)。评价结果显示,图们江下游地区湿地大部分区域生态环境较好,该湿地的主要功能是生态服务功能;根据综合评价指数CEI,将图们江下游地区湿地的生态质量分化为3个等级,CEI在(0.7,1]之间为生态质量较好的湿地区域,共有5处,依次是图们江流域,龙山水库区域,五道泡南—龙山水库西侧沼泽湿地,圈河流域和五道泡区域;CEI指数在(0.5,0.7]之间为生态质量一般的湿地区域,共有3处,依次是鲁田地区(Ⅺ)、三道泡区域(Ⅲ)、人工水田区(Ⅹ);CEI指数在(0,0.5]之间为生态质量较差的湿地区域,共有3处,依次是头道泡区域(Ⅰ)、四道泡区域(Ⅳ)、二道泡区域(Ⅱ)。By field survey,according to the research methods and ecological evaluation index of wetland both in China and abroad,combined with the actual situation of the wetland in the downstream region of Tumen River,thirteen indexes were selected form out of all indexes for ecosystem service function and ecosystem protection function.AHP(Analytic Hierarchy Process)method was used for the wetland ecological evaluation.Firstly,the weights of evaluation indexes were worked out by AHP,and the ecological evaluation indexes were divided into four grades,and each grade was given corresponding score.Combined with the weights and the scores of the eco-logical evaluation indexes,the CEI(comprehensive evaluation index)was worked out for evaluation results.By analyzing the evaluation results,the CEI was divided into three grades.According to this,the wetland in the downstream region of Tumen River were divided into three ecological grades.When the CEI between 0.7 and 1,there are 5 areas,it means the ecological quality is good,the order is Tumen River Basin(Ⅷ),LongShan Res-ervoir(Ⅶ),Marsh Wetland between the Fifth-Lake south and LongShan-Reservoir west(Ⅵ),Quan River Ba-si(Ⅸ)and the Fifth Lake(Ⅴ);When the CEI between 0.5 and 0.7,there are 3 areas,it means the ecological quality is general,the order is LuTian Area(Ⅺ),the Third Lake(Ⅲ)and Artificial paddy fields(Ⅹ);When the CEI between 0 and 0.5,it means the ecological quality is poor,there were 3 areas,the order was the First Lake(Ⅰ),the Forth Lake(Ⅳ),the Second Lake(Ⅱ).The evaluation results showed that the eco-environment in most area in the wetland in the downstream region of Tumen River is good and the ecological service function of wetland is better than the ecological protection function.

关 键 词:图们江下游湿地 层次分析法 生态评价 生态服务功能 生态保护功能 

分 类 号:X826[环境科学与工程—环境工程]

 

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