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[基于AWRSEI的太空时间演变和驱动因素分析大海盆地的生态环境质量]

Jia-Li Zhao¹, Xing Li^1,2, Bing Sun³

¹College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022, China.

Huan jing ke xue= Huanjing kexue

|March 12, 2024

概括

一个新的指数,干旱流域遥感生态指数 (AWRSEI),改善了干旱地区的生态评估. 20多年来,大海盆地表现出波动性,但总体上改善了生态质量,这是土地利用变化所推动的.

科学领域:

环境科学环境科学
遥感遥感遥感遥感
生态生态学生态生态学

背景情况:

流域是重要的生态障碍,也是社会经济发展的重要区域.
在干旱和半干旱地区进行准确的生态评估是具有挑战性的.
现有的指数可能无法完全捕捉到这些环境的复杂性.

研究的目的:

开发和验证一个新的指数,干旱流域遥感生态指数 (AWRSEI),用于评估干旱和半干旱流域的生态质量.
从2001年到2020年使用AWRSEI量化评估大海盆地的生态和环境质量.
分析大海盆地的时空演变以及生态质量的驱动因素.

主要方法:

在遥感生态指数 (RSEI) 中引入盐度指数,以创建AWRSEI.
使用Landsat TM/OLI复合图像 (2001-2020) 对大海盆地生态质量的定量评估.
使用变化系数和空间自相对应的时空模式的分析,以及使用地理探测器的驱动因素.

主要成果:

与干旱流域的RSEI相比,AWRSEI表现出更高的代表性和更接近实际表面条件.
大海盆地在2001-2020年间的生态质量呈现出波动性但总体显著的改善,改善面积增加了12.71%.
生态质量在空间上是异质的,高海拔森林土地的条件更好,中海拔地区的条件更差;土地利用和气象因素是关键因素.

结论:

AWRSEI是干旱水域生态环境质量评估的合适和有效工具.
在大海盆地观察到显著的生态改善,表明成功的环境管理或自然恢复.
土地利用是影响生态质量的主要因素,与气象因素相结合时具有协同效应.

关键词:

大海盆地是大海的盆地.生态环境质量生态环境质量地理探测器地理探测器遥感生态指数 (RSEI) 是指远程传感的生态指数.空间自相关性空间自相关性

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