Translator Disclaimer
12 May 2021 Analysis of the Spatio-Temporal Evolution of Land Intensive Use and Land Ecological Security in Tianjin from 1980 to 2019
Li Xuemei, Liu Qian, Han Jie, Yuan Ping, Li Yamin
Author Affiliations +
Abstract

The problem of land ecological security directly threatens the sustainable development of many regions, and exploring the spatio-temporal characteristics of land ecological security is helpful for analyzing the land ecological patterns between regions and over time. Based on the interpretation of remote sensing image data for Tianjin in 1980, 2000, 2010 and 2019, supported by software such as ArcGIS and GeoDa, the changes of land use in the study area are calculated by using the land use dynamic degree. Then, the land ecological security index and spatial autocorrelation analysis methods are used to study the spatial correlations and internal heterogeneity of land ecological security in each district in Tianjin. The results show that: (1) The land use of Tianjin has changed dramatically in the past 40 years: the building land has been expanding, while the farmland and barren have been shrinking continuously. (2) The overall level of land ecological security is in the high security area, and Jizhou District is the highest, while the Central areas and Binhai are low. (3) The spatial heterogeneity of land ecological security is not obvious, but the spatial agglomeration is strong.

Li Xuemei, Liu Qian, Han Jie, Yuan Ping, and Li Yamin "Analysis of the Spatio-Temporal Evolution of Land Intensive Use and Land Ecological Security in Tianjin from 1980 to 2019," Journal of Resources and Ecology 12(3), 367-375, (12 May 2021). https://doi.org/10.5814/j.issn.1674-764x.2021.03.006
Received: 20 October 2020; Accepted: 4 March 2021; Published: 12 May 2021
JOURNAL ARTICLE
9 PAGES


Share
SHARE
KEYWORDS
ecological safety level
land use change
spatial heterogeneity
Tianjin City
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top