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四种河流水系阻力下的黄河三角洲湿地生态网络构建及对比研究

文献类型：期刊论文

作者吴晶晶; 栗云召; 高猛; 吴晓青; 毕晓丽
刊名湿地科学
出版日期2018-08-15
卷号16期号:04页码:493-501
关键词生态网络 最小成本路径 河流水系阻力 网络结构分析 景观连通性 黄河三角洲
ISSN号1672-5948
DOI10.13248/j.cnki.wetlandsci.2018.04.007
其他题名Construction ofWetland Ecological Networks under Four Kinds of Resistance of Rivers in the Yellow River Delta and Their Comparison
产权排序(1)中国科学院烟台海岸带研究所 ; (2)中国科学院大学 ; (3)鲁东大学资源与环境工程学院
英文摘要Ecological network is an efficient tool to increase the landscape connectivity which plays important roles in maintain of ecosystem integrity and protection of key habitats. Resistance surface is one of the most important features of ecological network, determining the effectiveness of ecological network construction. The main objective of this paper was to analyze how water resistance surface can influence the connectivity of potential wetland ecological corridors in a typical coastal wetland of the Yellow River Delta. Four water resistance surface schemes were designed based on the values of water resistance cost, respectively: (1) a basic cost value, according to the current references; (2) half of the basic value, (3) the minimum cost value, and (4) decreasing of the cost interval. The cost distances and potential wetland ecological corridor for these four schemes were generated based on the least cost path method. The structure features and landscape connectivity characteristics of these networks of the four different schemes were evaluated using both network constructive indices and landscape connectivity indices. The results showed significant differences among the four potential wetland corridors. Both water cost and the cost interval had affected the ecological corridors significantly. When the value of water cost was decreased by half, the pattern of network 2 was similar with that of the network 1 which based on the referenced value. The number of nodes, the pattern of the potential corridors and their total length have changed slightly. However, when the cost value was the minimum, the number of nodes and the length of potential corridors had increased greatly. The potential corridors have overlapped with the real river networks, especially in the Yellow River tail channel and old channels. In addition, when the cost interval was decreased, the structure of network 4 became complex and the number of nodes, length of potential corridors have also increased. The assessment results of network connectivity also showed that the four designations were able to generate the closed networks and the landscape connectivity indices have increased due to the increasing of threshold values. In particular, when the threshold values were larger than 12 km, the landscape connectivity of network of the third scheme was the highest. The results also showed that the density of new nodes was more intensive in inland areas than that in other parts of the delta, indicating a more fragmented landscape pattern. Consequently, the connection between these wetland habitats should be strengthened. This research could give scientific suggestions for protection and management of the wetlands in the Yellow River Delta.
语种中文
CSCD记录号CSCD:6336155
资助机构国家自然科学基金项目#31670471 ; 中国科学院科技服务网络计划项目#KFJ-STS-127
源URL[http://ir.yic.ac.cn/handle/133337/24687]  
专题烟台海岸带研究所_海岸带信息集成与综合管理实验室
烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位1.中国科学院烟台海岸带研究所;
2.中国科学院大学;
3.鲁东大学资源与环境工程学院
推荐引用方式
GB/T 7714		 吴晶晶,栗云召,高猛,等. 四种河流水系阻力下的黄河三角洲湿地生态网络构建及对比研究[J]. 湿地科学,2018,16(04):493-501.
APA 吴晶晶,栗云召,高猛,吴晓青,&毕晓丽.(2018).四种河流水系阻力下的黄河三角洲湿地生态网络构建及对比研究.湿地科学,16(04),493-501.
MLA 吴晶晶,et al."四种河流水系阻力下的黄河三角洲湿地生态网络构建及对比研究".湿地科学 16.04(2018):493-501.

入库方式： OAI收割

来源：烟台海岸带研究所

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