摘要
Abstract
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 50 734.44 hm2 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 18 184.50 hm2 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 19 719.72 hm2;on the contrary,the area of agricultural land converted to construction land was the largest,with a cumulative total of 1 572.12 hm2.关键词
农用地/土地利用/时空变化/转移矩阵/新疆阿克苏/2000-2020年Key words
agricultural land/land utilization/spatiotemporal change/transition matrix/Aksu Xinjiang/2000-2020分类
管理科学
