2006-2020年内蒙古河套灌区土地利用时空变化特征分析  

Analysis of Spatial and Temporal Variation Characteristics of land Use in Hetao Irrigation District of Inner Mongolia from 2006 to 2020

作　　者：周龄 于凤永 ZHOU Ling;YU Fengyong(School of Resources,Environment and Architectural Engineering,Chifeng University,Chifeng 024000;City Management Comprehensive Administrative Law Enforcement Bureau,Aohan Banner,Chifeng 024000,China)

机构地区：[1]赤峰学院资源环境与建筑工程学院,内蒙古赤峰024000 [2]内蒙古赤峰市敖汉旗城市管理综合行政执法局,内蒙古赤峰024000

出　　处：《东北农业科学》2024年第6期89-93,共5页Journal of Northeast Agricultural Sciences

基　　金：内蒙古自治区高等学校科学研究项目(NJZZ22197)

摘　　要：基于2006-2020年河套灌区土地利用数据,采用土地利用变化率、土地利用优先指数、转移矩阵等方法,对2006-2020年河套灌区土地利用变化时空特征进行了分析。结果表明,2006-2020年灌区土地利用结构发生了一定的变化,主要表现为耕地、牧草地减少,荒草地、盐碱地增加;灌区土地利用年均变化速度为0.44%,以盐碱地的变化速度最快。具体到各个县旗区,不同土地利用类型的相对变化率不一致,以临河区和乌拉特前旗土地利用总体上变化比较突出。土地利用转移矩阵分析表明,土地利用变化过程主要表现为:耕地向荒草地和盐碱地转变,牧草地向荒草地转变,呈现出较明显的土地退化特征。本研究为内蒙古河套灌区水土资源规划与管理及生态环境保护提供理论依据。It was analyzed by using the methods of land use change rate,land use priority index and transfer matrix based on the land use data of Hetao Irrigation District from 2006 to 2020,the spatial and temporal characteristics of land use change in Hetao Irrigation District from 2006 to 2020.The results showed that the land use structure of the irrigation area had changed to a certain extent from 2006 to 2020,which was mainly manifested in the decrease of cultivated land and grassland,and the increase of grassland and saline-alkali land.The average annual change rate of land use in the irrigation area was 0.44%,and the change rate of saline-alkali land was the fastest.Specific to each county,the relative change rate of different land use types was inconsistent,and the land use change in Linhe District and Urat Front Banner was generally more prominent.The analysis of land use transfer matrix showed that the process of land use change was mainly manifested as the transformation of cultivated land to wasteland and saline-alkali land,and the transformation of grassland to wasteland.It showed obvious land degradation characteristics.This study provided a scientific basis for the land-water resources planning and management and ecological environment protection in Hetao Irrigation District of Inner Mongolia.

关 键 词：河套灌区 土地利用 时空变化 转移矩阵 

分 类 号：S17[农业科学—农业基础科学] P906[天文地球—自然地理学]