[1]李 政,何 伟*,杨 皎,等.基于GIS格网模型的长江上游山丘区国土利用生态健康评价:以四川省宜宾市为例[J].四川师范大学学报(自然科学版),2020,43(03):417-426.[doi:10.3969/j.issn.1001-8395.2020.03.019]
 LI Zheng,HE Wei,YANG Jiao,et al.Ecological Health Assessment of Land Use in the Upper Reaches of the Yangtze River Based on GISGrid Model: Take Yibin in Sichuan Province as an Example[J].Journal of SichuanNormal University,2020,43(03):417-426.[doi:10.3969/j.issn.1001-8395.2020.03.019]
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基于GIS格网模型的长江上游山丘区国土利用生态健康评价:以四川省宜宾市为例()
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《四川师范大学学报(自然科学版)》[ISSN:1001-8395/CN:51-1295/N]

卷:
43卷
期数:
2020年03期
页码:
417-426
栏目:
基础理论
出版日期:
2020-05-05

文章信息/Info

Title:
Ecological Health Assessment of Land Use in the Upper Reaches of the Yangtze River Based on GISGrid Model: Take Yibin in Sichuan Province as an Example
文章编号:
1001-8395(2020)03-0417-10
作者:
李 政123 何 伟12* 杨 皎12 赵晓全12 陈 林2
1. 四川师范大学 西南国土资源评价与监测教育部重点实验室, 四川 成都 610066; 2. 四川师范大学 地理与资源科学学院, 四川 成都 610066; 3. 重庆市地理信息和遥感应用中心, 重庆 401121
Author(s):
LI Zheng123 HE Wei12 YANG Jiao12 ZHAO Xiaoquan12 CHEN Lin2
1. Key Laboratory of Southwest Land Resources Evaluation and Monitoring of Ministry of Education of China, Sichuan Normal University, Chengdu 610066, Sichuan; 2. Geography and Resources Science College, Sichuan Normal University, Chengdu 610066, Sichuan; 3. Geographic Information and Remote Sensing Application Center, Chongqing 401121
关键词:
国土利用生态健康 格网模型 空间探索性分析 地理探测器 宜宾市
Keywords:
land use ecological health grid model spatial exploratory analysis geographic detector Yibin
分类号:
F301
DOI:
10.3969/j.issn.1001-8395.2020.03.019
文献标志码:
A
摘要:
为测度研究区国土利用生态健康水平粒度特性与空间分异规律,论文基于“活力-组织-弹性-功能”理论与PSR模型,以公里格网为评价单元,采用熵权综合评价法计算健康值,利用空间探索性法揭示其空间分异规律,并通过因子探测器直观展现各因素决定力大小.结果表明:1)宜宾市各区县国土利用生态综合健康平均指数围绕0.60上下波动,区域发展相对均衡,但中心城区与郊区县差异较大.2)国土利用生态健康状况总体较好; 健康区域面积最大,达到6 131 km2,占区域总面积的46.07%; 亚健康区域面积次之,
Abstract:
In order to measure the grain size characteristics and spatial differentiation of the ecological health level of the land use in the study area, the paper is based on the “vigor-organization-elastic-function” theory and the PSR model. Taken the kilometer grid as the evaluation unit, the health value is calculated by the entropy weight comprehensive evaluation method, its spatial differential law is revealed by the ESDA method and the determinant factors are visually shown by the factor detector. The results show that: 1)The average comprehensive ecological index of land use in all districts and counties of Yibin City fluctuates around 0.60, and the regional development is relatively balanced. However, the central city and suburban counties are quite different. 2)The ecological health status of land use is generally good; the area of healthy area is the largest, reaching 6 131 km2, accounting for 46.07% of the total area; the sub-health area is the second, accounting for 29.78%; the unhealthy area is the smallest, accounting for 24.15%. 3)The health level of the land use ecosystem has strong spatial correlation, spatial agglomeration pattern is significant, and spatial correlation is mainly positive correlation, mainly HH type or LL type accumulation area. 4)The difference in human activities is the main factor affecting the spatial differentiation of the ecological health level of the land use in the city. The difference in natural system resilience is a secondary factor. Soil properties, topography and policy regulation are other factors that lead to spatial differentiation of ecosystem health. Therefore, tightening the capacity on the line, absorbing the ecological bottom line, adhering to the intensive use of the land, optimizing the spatial layout of the “three students”, adjusting the industrial structure, and developing eco-tourism will be necessary for Yibin City to improve the ecological health level of the land use and create an ecological mountain culture city measures.

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备注/Memo

备注/Memo:
收稿日期:2019-01-15 接受日期:2019-05-28 基金项目:四川省哲学社会科学规划项目(SC16B066) *通信作者简介:何 伟(1972-),男,副教授,主要从事国土资源利用及评价的研究,E-mail:cdwhe@163.com
更新日期/Last Update: 2020-05-05