摘要
农用地是土地利用类型中最基本也是最重要的一种类型。农用地资源在保障粮食供给、保持生态平衡、实现可持续发展等方面有着十分重要的作用。农用地为人类生存和发展提供了物质性基础条件,农用地利用监测工作对保护粮食安全极其重要。以阿克苏市为例,利用ArcGIS 10.8软件的空间分析功能,对2000—2020年的遥感影像进行了重分类处理,得到了研究区不同时期的主要农用地利用类型的分类结果,采用土地利用转移矩阵,对研究区主要农用地利用类型的时空变化进行了分析。结果表明:从土地利用的时间变化角度来看,2000—2020年阿克苏市耕地面积在6种土地利用类型中变化幅度最大,从2000年到2020年共增加了50734.44 hm^(2);水域面积变化最小。从农用地变化的时空分布来看,旱地是阿克苏市的主要农用地类型,当地主要农用地基本上分布在研究区的西北部区域,农用地总面积从2000年到2020年共增加了18184.50 hm^(2)。从农用地变化的转移矩阵来看,未利用地转变为农用地的面积最大,累计达到19719.72 hm^(2);相反,农用地转变为建设用地的面积最大,累计达到1572.12 hm^(2)。
Agricultural land is the most basic and important type of land utilization.Agricultural land resources play a very important role in ensuring food supply,maintaining ecological balance,achieving sustainable development and so on.Agricultural land provides a material foundation for human survival and development,and monitoring the utilization of agricultural land is crucial for protecting food security.This paper took Aksu City as an example and used the spatial analysis function of ArcGIS 10.8 software to reclassify remote sensing images from 2000 to 2020.The classification results of the main agricultural land utilization types of the study area in different periods were obtained.Using the land utilization transition matrix,we analyzed the spatiotemporal changes of the main agricultural land utilization types in the study area.The results showed that from the perspective of land utilization temporal change,the cultivated land area in Aksu City changed the largest among the six land utilization types from 2000 to 2020,with a total increase of 50734.44 hm^(2)from 2000 to 2020;the change in water area was minimal.From the perspective of the spatial and temporal distribution of agricultural land changes,dry land was the main type of agricultural land in Aksu City.The main agricultural land mainly distributed in the northwest of the study area,and the total area of agricultural land had increased by 18184.50 hm^(2)from 2000 to 2020.From the perspective of the transition matrix of agricultural land changes,the area of unused land converted to agricultural land was the largest,with a cumulative total of 19719.72 hm^(2);on the contrary,the area of agricultural land converted to construction land was the largest,with a cumulative total of 1572.12 hm^(2).
作者
阿依妮尕尔·亚森
布买日也木·买买提
Ayinigaer Yasen;Bumairiyemu Maimaiti(School of Public Administration(Law School),Xinjiang Agricultural University,Urumqi Xinjiang 830052)
出处
《现代农业科技》
2024年第20期99-103,共5页
Modern Agricultural Science and Technology
