基于地理探测器的沼泽湿地变化驱动因子定量分析——以小三江平原为例

发布时间：2018-06-29 10:04

  本文选题：驱动因子 + 定量分析　； 参考：《东北师大学报(自然科学版)》2017年02期

【摘要】：以湿地变化较为剧烈的小三江平原为研究区域,结合GIS和RS技术,利用地理探测器方法定量分析了沼泽湿地变化的驱动力,揭示了各驱动因子在沼泽湿地变化中的作用及相互关系.结果表明:1986—2010年小三江平原沼泽湿地丧失严重,湿地丧失较多的地区主要位于研究区中部及东北部的草甸土和沼泽土土壤类型、低河漫滩地貌类型、海拔51~55m及1°~3°坡度处;1986—2010年间,小三江平原沼泽湿地丧失的主要驱动因子按贡献率大小排列依次为土壤类型、坡度、地貌、与河流距离、年降水量和海拔;各驱动因子之间的交互作用大部分是非线性增强,其中与保护区距离、与居民点距离和行政区的交互作用均呈非线性增强作用,坡度、土壤类型、地貌、与河流距离等自然因子之间的交互作用是相互减弱的;自然因子虽然对小三江平原湿地面积丧失的贡献率较大,但它们必须在人为因子的作用下,是与人为因子的相互作用,共同造成小三江平原沼泽湿地的大面积丧失.
[Abstract]:Taking Xiaosanjiang Plain, where the wetland changes are more intense, as the research area, combining GIS and RS technology, the driving force of wetland change is quantitatively analyzed by using the method of geographical detector. The role and relationship of various driving factors in swamp wetland change were revealed. The results showed that the swamps in the Xiaosanjiang Plain were seriously lost from 1986 to 2010, and the areas with more wetland loss were mainly located in the meadow soil and marsh soil types in the middle and northeast of the study area, and the geomorphological types of the low floodplain. From 1986 to 2010, the main driving factors of wetland loss in Xiaosanjiang Plain were soil type, slope, geomorphology, distance from river to river, annual precipitation and altitude. The interaction between driving factors is mostly nonlinear enhancement, in which the interaction with protected area, residential area and district is nonlinear, slope, soil type, geomorphology, slope, soil type, landform, etc. The interaction with natural factors, such as river distance, is weakened. Although natural factors contribute a lot to the loss of wetland area in Xiaosanjiang Plain, they must interact with human factors under the action of human factors. Together caused the small Sanjiang Plain swamp wetland large area loss.
【作者单位】： 吉林师范大学旅游与地理科学学院;东北师范大学环境学院;
【基金】：国家自然科学基金资助项目(41071037) 教育部新世纪优秀人才支持计划项目(NCET-12-0730) 中央财政林业科技推广示范项目(吉推(2014)16号)
【分类号】：P208;P237;P901
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本文编号：2081762