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作 者:殷其恒 罗新正[1] YIN Qi-heng;LUO Xin-zheng(School of Environmental and Material Engineering,Yantai University,Yantai 264005,China)
机构地区:[1]烟台大学环境与材料工程学院,山东烟台264005
出 处:《烟台大学学报(自然科学与工程版)》2021年第3期361-371,共11页Journal of Yantai University(Natural Science and Engineering Edition)
基 金:海洋沉积与环境地质国家海洋局重点实验室开放基金资助项目(MASEG2012)。
摘 要:选取逛荡河常年有水的干流河段,基于草本植物构建了由丰富度、芦苇特性、多样性和耐受性4大类和9项指标的河流健康评价指标体系,根据层次分析法确定各项指标的评价权重,通过建立评价模型和评价标准对其进行生态健康评价。调查发现64种草本植物。结果表明:在10个评价河段中,有1个健康,5个一般,2个差,2个很差。再结合人类调查情况分析河流生态健康退化的主要原因有:①污染物排入;②河流自净能力降低。恢复逛荡河生态健康的对策是:①污染物资源化利用;②恢复天然河流状况。逛荡河生态健康评价可为逛荡河生态修复提供科学依据,也可为类似河流生态健康评价体系的建立提供参考。In order to ecologically assess the health of the main stream section of the Guangdang River which has water all year round,a river ecological health evaluation index system,consisting of 4 categories including richness,reed characteristics,diversity and tolerance and total 9 indicators,is constructed based on herbaceous plants.The evaluation weight of each index is determined according to the analytic hierarchy process,and the evaluation model and evaluation standard are established.The survey finds 64 species of herbs.The results show that among the 10 evaluated river reaches,1 is healthy,5 are average,2 are poor,and 2 are very poor.The main causes of river ecological health degradation are as follows:one is pollutant discharge,the other is the reduced self-purification capacity of the river.The countermeasures to restore the ecological health of the Guangdang River are as follows:one is to utilize of pollutants as resource,the other is to restore the natural river condition.The ecological health assessment of the Guangdang River can provide scientific basis for the ecological restoration of the Guangdang River.It can also provide reference for the establishment of ecological health evaluation system of similar rivers.
关 键 词:逛荡河 草本植物 评价指标体系 生态健康评价 对照河段
分 类 号:X826[环境科学与工程—环境工程]
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