基于GIS空间数据的红河县哈尼梯田分布规律研究

Study on the Spatial Distribution Rules of Hani Terrace in Honghe County Based on GIS Spatial Data

基于DEM数字高程模型,选择云南省红河县为研究区域,结合野外调查,应用GIS空间数据和分析方法,得出红河县内的梯田空间分布规律,以期为红河县的梯田人工湿地保护提供参考。结果表明:研究区梯田总面积15178hm^2,以大斑块集中分布为主,宝华乡、阿扎河乡的梯田分布面积最多,迤萨镇分布最少。梯田的分布中心集中在海拔1200~1800m,坡度15~25°的南坡、东南坡和西南坡坡向上。哀牢山独特的地形和立体气候造就了红河县梯田湿地的空间分布,梯田上部的水源涵养林保障了梯田湿地水源的充足。

Based on digital elevation model,Honghe County of Yunnan Province was selected as a case area for study.Combined with the field investigation,the basic spatial distribution rules of Hani Terrace in HongheCountywere obtainedby using the spatial analysis method based on GIS spatial data,so as to provide the reference for protection of terracing constructed wetlands in HongheCounty.The research results show that the total area of terrace in the study area is 15,178hm 2,mainly concentrated distribution of large patches.The terraces in Baohua Township and AzheTownship have the largest distribution area,while the ones in BellysaTownship have the least distribution area.The terrace distribution is concentrated in the elevation of 1,200~1,800m,on the southern,southeastern and southwestern slopes with the degrees of 15~25°.The distribution ofterrace wetlandsin space of Honghe County is related to the unique topography and three-dimensional climate of AilaoMountain.The water conservation forest on the upper part of terrace ensures the sufficient water source of terrace wetland.