Resources Science, Volume. 42, Issue 10, 2010(2020)

Improving ecological security pattern based on the integrated observation of multiple source data: A case study of Wannian County, Jiangxi Province

Yang GAO1,2, Yuexin LIU1,2、*, Jianli Qian3, You GUO4, and Yingshan HU4
Author Affiliations
  • 1College of Land Science and Technology, China Agricultural University, Beijing 100193, China
  • 2Key Laboratory of Agricultural Land Quality and Monitoring, Ministry of Natural Resources, Beijing 100193, China
  • 3Xi’an Mineral Resources Research Center of China Geological Survey, Xi’an 710100, China
  • 4Natural Resources Comprehensive Survey Command Center, China Geology Survey, Beijng 100055, China
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    Figures & Tables(10)
    The study area
    Connectivity index of ecological landscape with different granularity (a. Number of patches; b. Landscape division index; c. Effective mesh size metric; d. Splitting index; e. Largest patch index; f. Patch cohesion index)
    Habitat quality of Wannian County (a) and the final ecological sources (b)
    Construction factors and results of comprehensive resistance surface (a. Degree of relief; b. Slope; c. Distance from first-class roads; d. Distance from second-class roads; e. Basic resistance of land use types; f. Comprehensive resistance)
    Ecological security pattern of Wannian County
    Protection and restoration zonation of Wannian County
    Current intensity (a) and recognition of “pinch points”(b)
    Improvement scores (a) and recognition of “barrier points” (b)
    • Table 1. Weights and coefficients of resistance factors

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      Table 1. Weights and coefficients of resistance factors

      阻力因子权重指标阻力系数
      景观类型0.40湿地、林地1
      水域10
      耕地、草地100
      风景名胜区200
      园地300
      村庄用地、农村道路600
      干线公路700
      水利设施用地800
      城镇工矿建设用地1000
      其他用地500
      地貌因子坡度/°0.15[0,8]1
      (8,15]10
      (15,25]50
      (25,35]75
      (35,57]100
      起伏度/m0.15[0,25]1
      (25,50]10
      (50,75]50
      (75,100]75
      (100,347]100
      道路因子距离一级道路距离/m(铁路、国道、省道)0.15[0,200]100
      (200,400]80
      (400,800]60
      (800,1600]40
      (1600,3200]20
      (3200,19000]1
      距离二级道路距离/m(县道、乡道)0.15[0,150]100
      (150,250]80
      (250,450]60
      (450,800]40
      (800,1000]20
      (1000,2740]1
    • Table 2. Key areas for protection and restoration of Wannian County

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      Table 2. Key areas for protection and restoration of Wannian County

      现状类型镇域具体分布存在问题
      待保护“夹点”区域河流梓埠镇白竹村西侧河段受到水利工程胁迫、人类农业活动等影响,河流逐渐萎缩、狭窄,且存在污染的问题
      河东村“石镇-桐山”国道路段旁河段
      湖云乡刘夏村北侧湖云河河段
      湖云河邱夏村河段
      珠田乡珠田村东侧安殷水河段
      珠田村南侧港前路旁河段
      林地湖云乡吾峰村水田旁林地森林资源不断减少,且破碎度逐渐增加,给生态环境造成压力,使得生境之间连通性降低
      杭长高速吾峰村路段旁:狮子岭林场
      石镇镇石镇村蔬港公路与“石镇-陈营”国道交叉口周边林地
      汪家乡李夏村居民点周边林地
      裴梅镇上万高速旁雅岗村路段林地
      待修复“障碍点”区域建设用地梓埠镇联合村水工堤坝(溢流坝)改变水体原有的流动方向和流动速度,在一定程度上阻碍了水生生物和陆生生物的迁徙途径
      后张村水工堤坝(土石坝)
      古城村水工堤坝(土石坝)
      裴梅镇东源村杨家坞水库
      道路用地汪家乡主要分布在杭长高速两侧在开发过程中对区域内植被产生不利影响,且在公路两旁形成林间空地,造成生境隔离
      上坊乡皖赣铁路
      裴梅镇主要分布在上万高速两侧
      陈营镇“宁德-福贡”国道
      农村居民点及水田陈营镇吴家村、许家村居民点(深入山区)人类活动密集,现代农业技术的使用使稻作逐渐由混种变为单种种植,且目前万年县种植机插率已达到30%,部分机械化种植地区可能会破坏生境连通性
      大源镇严家村水田
      裴梅镇东源村、汪家村居民点(深入山区)
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    Yang GAO, Yuexin LIU, Jianli Qian, You GUO, Yingshan HU. Improving ecological security pattern based on the integrated observation of multiple source data: A case study of Wannian County, Jiangxi Province[J]. Resources Science, 2020, 42(10): 2010

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    Paper Information

    Received: May. 6, 2020

    Accepted: --

    Published Online: Apr. 23, 2021

    The Author Email: Yuexin LIU (SY20193030389@cau.edu.cn)

    DOI:10.18402/resci.2020.10.17

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