基于MODIS NDVI的输电线路植被覆盖变化分析——以雅布赖变至阿右旗变220kV输电线路为例
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摘要
以内蒙古阿拉善右旗雅布赖变至阿右旗变220kV输电线路工程为例,采用MODIS-NDVI影像,分别获得了该输电线路建设前后评价范围NDVI均值,结果表明:该输电线路工程沿线NDVI呈上升趋势;历经4年的时间,线路沿线高覆盖植被显著增加,而低覆盖植被明显降低;总体上线路沿线植被覆盖以改善为主,特别是线路两端植被恢复明显。在此基础上,提出了内蒙古自治区阿拉善盟输电线路工程生态恢复的前提、时机和措施,对项目区同类工程的生态恢复提供参考。
In case of "220 kV transmission project from Ya Bu Lai Substation to Alxa Right Banner Substation",the variation of vegetation coverage were analyzed based on MODIS NDVI data.The results indicated that the vegetation cover along the both sides of Power transmission project was increased; After four years, High Vegetation cover was Significant increased, lower Vegetation cover was Significant reduced, On the whole, the vegetation cover along the line is mainly improved,Especially the vegetation restoration at both ends of the line is obvious. On this basis, the premise, opportunity and measures of ecological restoration of Alashan League transmission line project in Inner Mongolia Autonomous region are put forward, which can provide reference for the ecological restoration of similar projects in the project area.
In case of "220 kV transmission project from Ya Bu Lai Substation to Alxa Right Banner Substation",the variation of vegetation coverage were analyzed based on MODIS NDVI data.The results indicated that the vegetation cover along the both sides of Power transmission project was increased; After four years, High Vegetation cover was Significant increased, lower Vegetation cover was Significant reduced, On the whole, the vegetation cover along the line is mainly improved,Especially the vegetation restoration at both ends of the line is obvious. On this basis, the premise, opportunity and measures of ecological restoration of Alashan League transmission line project in Inner Mongolia Autonomous region are put forward, which can provide reference for the ecological restoration of similar projects in the project area.
引文
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[2] 崔晓临,赵娟,白红英等.基于MODIS NDVI的陕西省植被覆盖变化分析[J].西北农林科技大学学报(自然科学版),2013,41(5):88- 92.
[3] 赵健赟,彭军还.基于MODIS NDVI的青海高原植被覆盖时空变化特征分析[J].干旱区资源与环境,2016,30(4):68- 72.
[4] 司建华,冯起,常宗强等.阿拉善雅布赖风沙区荒漠植物群落结构和物种多样性研究[J].西北植物学报,2011,31(3):603- 609.
[5] 刘春莲,刘菊莲.阿拉善植被退化成因及保护措施浅析[J].内蒙古气象,2010,02:22.
[6] 李锦秀,肖洪浪,任娟.阿拉善地区水资源与生态环境变化及其对策研究[J].干旱区资源与环境,2010,24(11):56- 61.
[7] 马斌,周志宇,张丽莉等.阿拉善荒漠区土壤因子与白沙蒿人工种群生长的主成分分析[J].西北植物学报,2007,27(5):996- 999.
[8] 许旭,李晓兵,梁涵伟等.内蒙古温带草原区植被盖度变化及其与气象因子的关系[J].生态学报,2010,30(14):37- 39.
[9] 田永祯,司建华,程业森等.阿拉善沙区飞播造林试验研究初探[J].干旱区资源与环境,2010,24(7):150- 153.
[10] 戴明丽,许伟,钱谊等.330 kV兰州-西宁-格尔木青海段输电的生态影响[J].安徽农业科学,2009,37(9):4176- 4178.