赣州市崩岗侵蚀分布特征与影响因子分析  

Distribution Characteristics and Driving Factors of Benggang Erosion in Ganzhou City

作　　者：廖凯涛 刘艳 刘荃 宋月君 黄宏胜[3] LIAO Kaitao;LIU Yan;LIU Quan;SONG Yuejun;HUANG Hongsheng(School of Geography and Environment,Jiangxi Normal University,Nanchang 330022,China;Key Laboratory of Soil Erosion and Prevention of Jiangxi Province,Jiangxi Academy of Water Science and Engineering,Nanchang 330029,China;College of Land Resources and Environment,Jiangxi Agriculture University,Nanchang 330045,China)

机构地区：[1]江西师范大学地理与环境学院,南昌330022 [2]江西省水利科学院江西省土壤侵蚀与防治重点实验室,南昌330029 [3]江西农业大学国土资源与环境学院,南昌330045

出　　处：《水土保持研究》2021年第6期126-130,共5页Research of Soil and Water Conservation

基　　金：国家自然科学基金(41967011,41867012);江西省自然科学基金(20181BAB203024);江西省重点研发计划(20171BBG70059);江西省水利科技计划(KT201616)。

摘　　要：为分析赣州市崩岗侵蚀分布特征及其关键影响因子,基于崩岗普查数据,分析了赣州市崩岗侵蚀的分布特征,采用灰色关联度法分析了各县(市、区)崩岗与海拔高度、坡度、坡向、坡型、成土母质、土壤类型、降雨侵蚀力、距河流距离、植被覆盖度与土地利用类型共10个影响因子关联度。结果表明:赣州市的崩岗主要分布在龙南县、赣县区、于都县、兴国县和石城县,总数为17917个,占到全市崩岗总数量的55.34%;地形因子(海拔高度、坡度、坡向)排序第一的县(市、区)有10个,水力因子(降雨侵蚀力)排序第一的县(市、区)有8个;赣州市崩岗侵蚀主要受地形因子和水力因子影响最强。赣州崩岗侵蚀影响因子存在一定的区位特殊性,因此在崩岗侵蚀防治过程中,应采取针对性防治措施,开展有的放矢的综合治理。In order to analyze the distribution characteristics and the key impact factors of the Benggang erosion in Ganzhou City,based on the general data of Benggang,a landslides database was constructed.The gray correlation degree method was adopted to analyze the function of each factors includeing altitude,slope,slope direction,slope type,soil parent material,soil type,rainfall erosion force,distance from river,vegetation coverage and land use type.The results show that:Benggang in Ganzhou City mainly distributes in Longnan County,Ganxian District,Yudu County,Xingguo County and Shicheng County,with a total number of 17917,accounting for 55.34% of the total;there are 10 counties and urban areas ranking first in topographical factors(elevation,slope and aspect),8 counties and urban areas ranking first in hydraulic factors(rainfall erosion force);topographical factors and hydraulic factors have the strongest influence on Benggang erosion in Ganzhou City.The impact factors of Benggang erosion in Ganzhou have location particularity,therefore,the targeted prevention and control measures should be taken in the process of prevention and control of Benggang erosion.

关 键 词：崩岗侵蚀 灰色关联度 影响因子 赣州市 

分 类 号：S157.1[农业科学—土壤学]