摘要
生态环境质量问题的评估对于区域可持续发展至关重要。本研究借助Google Earth Engine(GEE)云平台采用主成分分析法和MODIS数据集构建遥感生态指数(RSEI),利用Theil-Sen Median趋势分析和Mann-Kendall检验、Hurst指数对新疆地区21a生态环境质量的时空变化特征进行分析。结果表明:(1)在时间尺度上,21a新疆地区生态环境质量呈现衰退趋势(p<0.01),平均变化率为-0.0002/a;(2)在空间尺度上,新疆地区21a生态环境质量整体呈现退化趋势,退化趋势占新疆地区总面积的50.8%,并且新疆地区生态环境质量未来的变化趋势与过去相反,将呈现上升趋势。
The assessment of ecological and environmental quality issues is crucial to the sustainable development of the region. In this study, we used the Google Earth Engine(GEE) cloud platform to construct the remote sensing ecological index(RSEI) with the help of principal component analysis and MODIS dataset,and used Theil-Sen Median trend analysis and Mann-Kendall test, Hurst index to characterize the spatial and temporal changes of ecological environmental quality in Xinjiang region 21a analysis. The results showed that (1) on the time scale, the ecological environment quality of 21a Xinjiang region showed a declining trend(p<0.01), and the average rate of change was -0.0002/a;(2) on the spatial scale, the overall ecological environment quality of 21a Xinjiang region showed a degradation trend, and the degradation trend accounted for 50.8% of the total area of Xinjiang region, and the future change trend of ecological environment quality of Xinjiang region was different from the opposite of the past, and will show an upward trend.
作者
杨若桐
王玉杰
王要佳
范军军
秦埼瑞
Yang Ruotong;Wang Yujie;Wang Yaojia;Fan Junjun;Qin Qirui(Beijing North-Star Technology Development Co.,Ltd.,Beijing,China)
出处
《科学技术创新》
2023年第1期208-212,共5页
Scientific and Technological Innovation
