Evaluation of Spatial-Temporal Variations in Ecological Environment Quality in the Red Soil Region of Southern China: A Case Study of Changting County

被引：1
作者：
Chen, Junming [1 ]
Lin, Guangfa [2 ]
Chen, Zhibiao [2 ]
机构：
[1] Fujian Normal Univ, Coll Geog Sci, Fuzhou 350117, Peoples R China
[2] Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Fuzhou 350117, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 19期
基金：
中国国家自然科学基金;
关键词：
ecological environment quality; remote sensing ecological index; spatial-temporal variation; red soil; southern China; FUZHOU CITY; INDEX; TRANSFORMATION;
D O I：
10.3390/app14198641
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The evaluation of ecological environment quality (EEQ) is an important method to measure the quality of ecosystem services. Therefore, the EEQ of Changting County, located in the red soil region of southern China, was assessed by using the remote sensing ecological index (RSEI) based on Landsat images from 1995 to 2019, and its spatiotemporal variability was identified by using the Global Moran's I index, standard deviational ellipse, and kernel density estimation. The results showed that, firstly, the EEQ degraded from 1995 to 2000, then improved from 2000 to 2019; secondly, the spatial distribution of the RSEI for each study year was not random and had a strong positive correlation; thirdly, the directional distributions of the RSEI for all the grades were almost in the direction of southwest to northeast, and the spatial discrete characteristics of the moderate- and good-grade areas were almost consistent from 1995 to 2019; fourthly, the kernel density distribution of the moderate- and good-grade EEQ was located in towns within the Tingjiang River Basin and in the surroundings of the study area, respectively. This study can help managers to better understand the spatial-temporal variations in the EEQ in the study area, supporting the government in formulating a better ecological restoration strategy.
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页数：15
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