[1]余文波,蔡海生,张莹,等.基于RS及GIS的南昌市土地生态安全动态评价及分区[J].水土保持研究,2018,25(04):244-249,256.
　YU Wenbo,CAI Haisheng,ZHANG Ying,et al.Land Ecological Security Dynamic Evaluation and Regionalization in Nanchang City Based on RS and GIS[J].Research of Soil and Water Conservation,2018,25(04):244-249,256.
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基于RS及GIS的南昌市土地生态安全动态评价及分区

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 25 期数: 2018年04期 页码: 244-249,256 栏目: 出版日期: 2018-06-13
Title:
Land Ecological Security Dynamic Evaluation and Regionalization in Nanchang City Based on RS and GIS
作者:
余文波1,2, 蔡海生1,2, 张莹1,2, 曾君乔1,2
1. 江西农业大学 江西省鄱阳湖流域农业生态重点实验室/南昌市鄱阳湖生态重点实验室, 南昌 330045;
2. 江西农业大学 农村土地资源利用与保护研究中心, 南昌 330045
Author(s):
YU Wenbo1,2, CAI Haisheng1,2, ZHANG Ying1,2, ZENG Junqiao1,2
1. Ecology Key Laboratory of Po-yang Lake Watershed in Jiangxi Province/Ecology Key Laboratory of Po-yang Lake in Nanchang, Jiangxi Agricultural University, Nanchang 330045, China;
2. Research Center of Rural Land Resource Utilization and Protection, Jiangxi Agricultural University, Nanchang 330045, China
关键词:
土地生态安全; RS/GIS; 分区; 格网; 南昌市
Keywords:
land ecological security; RS/GIS; subarea; grid; Nanchang City
分类号:
X826
摘要:
科学认识土地生态安全时空演变格局规律是区域生态安全及生态文明建设的重要组成部分。利用3S技术，借助PSR模型构建了市域土地生态安全评价指标体系，采用层次分析法及熵值法综合确定了权重，从格网尺度对南昌市土地生态安全进行了动态评价及分区分析。结果表明：（1）时间分异上，15年间南昌市土地生态安全经历了以临界安全等级到以较安全等级为主的变化，2010—2015年，土地生态安全状况改善最好，绿色崛起战略是主要驱动力；（2）空间分异上，2000年北部及中西部低、中南部高；2010年中东部较高、西南和东北较为平稳；2015年南昌市整体较高、中北部及西南部低；（3）分区上，南昌县、进贤县、安义县全部及湾里区、青山湖区等都处于生态持平区，东湖区、西湖区及青云谱区大部分及新建县北部处于生态恢复区，针对不同的分区结果提出了不同的应对措施。研究结论为区域生态文明建设及国土空间综合分区利用提供参考依据。
Abstract:
The scientific understanding of the spatial-temporal evolution pattern of land ecological security is the significant part of regional ecological security and ecological civilization construction. The temporal and spatial evolution pattern of land ecological security in Nanchang City was analyzed scientifically based on land use change. With 3S technology and PSR model were used to conduct the city’s evolution index system of land security, we synthetically used AHP and entropy method to determine the weight of each index. The dynamic evaluation and subarea analysis of land ecological security in Nanchang City were carried out from the perspective of administrative divisions and the grid scale. The results show that: (1) with respect to time differentiation, since 2000 years, the land ecological security in Nanchang City had changed from critical level to mainly relatively safe level over the past 15 years; with the rise of green strategy as the main driving force, the best improvement land ecological security situation had been witnessed during 2010—2015; (2) with respect to spatial differentiation, in 2000, the land ecological security was low in the north and middle west of Nanchang City while it was high in the middle south; in 2010, it was relatively higher in the middle east, and it was relatively stable in the southwest and northeast; and in 2015, the land ecological security of Nanchang was overall higher while it was low in the north center and southwest; (3) Nanchang County, Jinxian County, Anyi County, Wanli District and Qingshanhu District are the ecological balanced areas; and most areas of East Lake, Xihu District, Qingyunpu District and the north of Xinjian County are located in the ecologically restored areas. Different countermeasures are put forward according to different partition results. The conclusions can provide a reference for the construction of regional ecological civilization and the comprehensive utilization of land space.

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备注/Memo

收稿日期:2017-09-21;改回日期:2017-10-18。
基金项目:国家自然科学基金（31660140，31560150）；江西省自然科学基金（20161BAB204180）；江西省教育厅科技项目（GJJ12218）
作者简介:余文波(1992-),男,湖北咸宁人,硕士研究生,研究方向为土地生态、土地经济。E-mail:ywb834673@163.com
通讯作者:蔡海生(1972-),男,江西万年人,博士,教授,博士生导师,主要从事土地生态、土地经济研究。E-mail:caihsh@263.net

更新日期/Last Update: 1900-01-01