基于GIS的信阳市土壤稳定性研究
Soil Stability Study Based on ArcGIS in Xinyang

近些年来伴随着科学技术的飞速发展，3S技术在地理学中的应用越来越广泛，运用电子计算机制图和空间分析系统可更快更精准地获取分析数据。本文主要将信阳市数字高程模型数据导入ArcGIS 10.8软件，分别对坡度、坡向、土地利用数据进行提取重分类，而后分别赋值加权求和，结果表明：(1) 信阳市整体土壤稳定性良好；(2) 局部来看，信阳市南部土壤稳定性优于北部和中部，具有差异性的特点；(3) 影响信阳市土壤稳定性的因素主要集中在人类活动对其的破坏，自然原因包括温度、植被、水流等方面；(4) 基于信阳市土壤稳定性情况，对其土地利用方面的建议可从改造恢复和保持现状两方面进行。
In recent years, with the rapid development of science and technology, the application of 3S technology in geography has become more and more widespread, and the use of electronic maps and spatial analysis systems has led to faster and more accurate analysis of data. In this paper, the Digital Elevation Model data of Xinyang City were imported into ArcGIS 10.8 software, and the slope, slope direction and land use data were extracted and reclassified respectively, and then assigned with weighted summation, and the results showed that: (1) The overall soil stability of Xinyang City is good; (2) The soil stability in the south of Xinyang City is better than that in the north and central part of the city, and has the characteristic of difference; (3) The factors affecting soil stability in Xinyang City mainly focus on the damage caused by human activities, and natural causes include temperature, vegetation, water flow, etc.; (4) Based on the soil stability of Xinyang City, the recommendations for its land use can be made in two aspects: renovation and restoration and maintaining the status quo.