中国农业大学学报2025，Vol.30Issue(4)：217-229,13.DOI:10.11841/j.issn.1007-4333.2025.04.18
阿克苏地区近30年土地利用变化及其生态环境效应研究
Land use change and its eco-environmental effect of Aksu region in recent 30 years
摘要
Abstract
To provide the basis for formulating the policy of rational utilization of land resources in Aksu region,based on the land use type data interpreted by remote sensing images from 1990,2000,2010 and 2020 in Aksu region,the land use transfer matrix,single and comprehensive land use dynamic attitude and ecological environment quality index were used to explore the spatio-temporal evolution characteristics of land use and ecological environment quality in the region over the past 30 years.The results showed as follows:1)The rate of land use change in Aksu region in recent 30 years had obvious stages,which was gentle from 1990 to 2000,drastic from 2000 to 2010,and more active from 2010 to 2020;The dynamic attitudes of comprehensive land use were 0.09％,1.42％and 0.78％,respectively.Among them,the area of grassland decreased by 21 844.50 hm2,the area of cultivated land increased by 5 713.81 hm2,and the area of garden increased by 1 244.54 hm2.2)The regional differences in land use change were significant.In the central and northern regions,a total of 15 018.32 hm2 of grassland and 382.63 hm2 of arable land were converted to other land,and a large number of grasslands were converted to cultivated land and forest land along the tributaries of Aksu River,with an area of 2 788.08 hm2 and 5 754.89 hm2,respectively.3)The eco-environmental quality indexes of Aksu region in 1900,2000,2010 and 2020 were 0.39,0.39,0.32 and 0.34,respectively,showing an overall low and decreasing trend.The spatial distribution difference was significant,with the high-value area mainly concentrated in the northern part of the study area and the low-value area primarily focused on the southern part of the study area.4)Land use change and its eco-environmental effects are highly consistent in time and space.The main positive effects on eco-environmental effects are the conversion of other land to woodland and grassland,and the contribution rates of both reach more than 70％.The main negative effects are grassland change into cultivated land,other land and water area shrinkage,the contribution rate of the three is nearly 90％.Therefore,the utilization of land resources in the Aksu region should adhere to the principle of determining land by water,that is,rationally determining the scale of agricultural land based on the carrying capacity of water resources,optimizing the structure and spatial layout of land use,and promoting green and efficient development.关键词
阿克苏地区/土地利用变化/动态度/生态环境质量/生态贡献率Key words
Aksu region/land use change/dynamic attitude/ecological environment quality/ecological contribution rate分类
环境科学引用本文复制引用
郑慧慧,宋月琪,魏宸博,汪秀莲,张定祥,王荣彬,徐艳..阿克苏地区近30年土地利用变化及其生态环境效应研究[J].中国农业大学学报,2025,30(4):217-229,13.基金项目
第三次新疆综合科学考察项目(2021xjkk0200) （2021xjkk0200）
