基于植被覆盖变化的塔里木河干流保护对策研究

Study on Protection Countermeasures of Mainstream of Tarim River based on Vegetation Cover

植被是生态系统的"指示器",研究植被覆盖变化对于河流生态系统的保护具有重要意义。通过Mann-Kendall非参数检验等方法,分析了塔里木河干流生态廊道植被覆盖时空变化特征,在此基础上提出了一系列的流域保护对策与建议。结果表明:塔里木河干流实行统一管理后取得了良好的生态效益,流域整体天然植被覆盖呈增加趋势。2000-2018年,上中游6个河段分别有54.56%、35.05%、38.89%、21.94%、26.66%和44.51%的区域植被覆盖度呈显著增加趋势,下游有71.10%的区域呈显著增加变化趋势。

Vegetation is the"indicator"of the ecosystem,and the study of vegetation cover changes is of great significance to the protection of river ecosystems.Through Mann-Kendall non-parametric test and other methods,the characteristics of the temporal and spatial changes of vegetation coverage in the ecological corridor of the mainstream of the Tarim River were analyzed,and a series of watershed protection countermeasures and suggestions were put forward on this basis.The results show that the unified management of the main stream of the Tarim River has achieved good ecological benefits,and the overall natural vegetation coverage in the basin is increasing.From 2000 to 2018,54.56%,35.05%,38.89%,21.94%,26.66%,and 44.51%of the six river sections in the upper and middle reaches showed a significant increase in vegetation coverage,and 71.10%of the lower reaches showed a significant increase.