[1]邸晓慧,苏英慧,明弘,等. 重庆市江津区土地利用景观干扰度时空变化[J].西北林学院学报,2021,36(1):187-195.[doi:10.3969/j.issn.1001-7461.2021.01.27]
　DI Xiao-hui,SU Ying-hui,MING Hong,et al. Temporal and Spatial Variations of Landscape Disturbance Degree of Land Use in Jiangjin District,Chongqing City[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2021,36(1):187-195.[doi:10.3969/j.issn.1001-7461.2021.01.27]
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 重庆市江津区土地利用景观干扰度时空变化()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第36卷
期数:
2021年第1期
页码:
187-195
栏目:
出版日期:
2021-01-31

文章信息/Info

Title:
 Temporal and Spatial Variations of Landscape Disturbance Degree of Land Use in Jiangjin District,Chongqing City
文章编号:
1001-7461(2021)01-0187-09
作者:
 邸晓慧1; 苏英慧1; 明弘2; 周宝同1; 2*
 （1.西南大学 地理科学学院，重庆 400715；2.重庆市盛地土地经济研究院，重庆 400000）
Author(s):
 DI Xiao-hui1; SU Ying-hui1; MING Hong2; ZHOU Bao-tong1; 2*
 （1.School of Geographical Sciences,Southwest University,Chongqing 400715,China; 2.Institute of Shengdi Land Economic Research,Chongqing 400000,China）
关键词:
 ; 土地利用; 景观干扰度; 时空变化; 重庆市江津区
Keywords:
 ; land use;  landscape disturbance degree;  temporal and spatial variation;  Jiangjin district
分类号:
F301；P901
DOI:
10.3969/j.issn.1001-7461.2021.01.27
文献标志码:
A
摘要:
 以重庆市江津区2007、2010、2015、2018年4期土地利用数据为基础，基于景观干扰度指数，借助ArcGIS空间分析功能，研究江津区不同土地分区景观干扰度时空变化，旨在为江津区合理利用和保护土地资源提供理论依据。结果表明：1) 2007-2018年江津区景观干扰度先增加后减小，2015年是干扰度变化的转折点；2007-2015年中、高景观干扰度范围持续扩张，景观干扰度呈增加趋势；2015-2018年中、高景观干扰度范围缩减，景观干扰度呈下降趋势。2) 研究期内江津区景观干扰度北部城镇高度发展区（Ⅰ区）＞中部传统农业发展区（Ⅱ区）＞南部农林生态涵养区（Ⅲ区），Ⅰ区主要以低、中干扰度为主，面积总比例达67.65%，干扰度变化最大，Ⅱ区低干扰度占优势，面积占比达56.75%，Ⅲ区是极低干扰度占比最大的区域，总比例接近30%。3)景观干扰度空间分布受坡度影响，低干扰度在各坡度范围内面积占比均较大，中干扰度主要在Ⅰ区和Ⅱ区S≤15°的范围内，面积占比均接近30%，高干扰度在Ⅰ区2°＜S≤25°的区域分布广泛，总比例近30%，在Ⅱ区和Ⅲ区所占比重较小，均在10%以下。为实现区域可持续发展，Ⅰ区和Ⅱ区应注重土地的集约利用，提高耕地质量，Ⅲ区应重点实施退耕还林，保护生态环境。
Abstract:
 Based on the land use data of Jiangjin district in Chongqing in 2007,2010,2015 and 2018,adopting the landscape disturbance index,the spatial and temporal variations of landscape disturbance degree (LDD) in Jiangjin from 2007 to 2018 were analyzed by the spatial analysis tool of ArcGIS.The purpose of this study was to provide theoretical basis for the reasonable utilization and protection of land resources of Jiangjin district.The results showed that 1) from 2007 to 2018,the LDD of the district increased first,and then decreased.In 2015,its degree of landscape disturbance changed.From 2007 to 2015,the range of medium and high LDD expanded continuously,and the LDD showed an increasing trend; however,from 2015 to 2018,the range of medium and high LDD reduced,and the LDD showed a downward trend.2) During the study period,the LDD of the district was in the order of zone Ⅰ>Ⅱ>Ⅲ.The main types of landscape disturbance in zone Ⅰ were low and medium disturbance degree,with a total proportion was 67.65%,the variation of interference degree in zone Ⅰ was the largest.Low disturbance degree was mainly distributed in zone Ⅱ,accounted for 56.75%,and in zone Ⅲ,the area of very low disturbance degree was the largest,with a proportion near 30%.3) The spatial distribution of LDD was affected by the slope:low disturbance degree had a large proportion of the area in the range of all slopes.The medium disturbance degree was mainly distributed in the range of S≤15° in zone Ⅰ and zone Ⅱ,with a proportion of near 30%,while the high disturbance degree was widely distributed in the range of 2°＜S≤25°in zone Ⅰ,with a total proportion of near 30%,and the proportions of high disturbance degree in zone Ⅱ and zone Ⅲ were low,which were both below 10%.In order to achieve regional sustainable development,attentions should be paid to zone Ⅰ and zone Ⅱ in the intensive use of land and to improve the quality of cultivated land,in zone Ⅲ,returning farmland to forests should be emphasized to protect the ecological environment of the area.

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备注/Memo

备注/Memo:
 收稿日期：2020-07-23修回日期：2020-08-20
基金项目：国家社会科学基金重大项目（15ZDC032）。
作者简介：邸晓慧。研究方向：土地利用与土壤环境。E-mail:2472554603@qq.com
*通信作者：周宝同，博士，副教授。研究方向：土地利用与土壤环境。E-mail:379485639@qq.com
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