2000—2016年赤水河流域植被生态质量变化分析
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摘要
为研究中国西部赤水河流域植被生态质量变化特征,该文基于MODIS归一化植被指数(NDVI)和气象监测资料,获取了中国西部赤水河流域2000—2016年植被覆盖度、净初级生产力(NPP)以及植被生态质量指数变化数据,并对此17 a期间植被生态质量时空变化进行分析。结果表明:(1)植被覆盖度均值从2000年的55. 4%提高到了2016年的67. 4%,覆盖度呈平均每10 a增加6. 8%的变化趋势;(2)植被NPP均值从2000年的864 g C/m~2提高到了2016年的1 024 g C/m~2,NPP呈平均每10 a增加63 g C/m~2的变化趋势;(3)近年来植被生态质量显著提高,2016年植被生态质量为2000年以来最好,植被生态质量指数高达83. 7。
This paper aims to study the characteristics of the ecological quality variation of vegetation in Chishui River Basin in western China. The vegetation coverage,net primary productivity( NPP) and vegetation ecological quality data were obtained based on MODIS Normalized Difference Vegetation Index( NDVI) and meteorological monitoring data. The temporal and spatial characteristics of vegetation ecological quality in Chishui River Basin during the past 17 years were analyzed. The results show that:(1)The mean vegetation coverage increases from 55. 4% in 2000 to 67. 4% in 2016,with an average increase of 6. 8% in every 10 years.(2)The mean NPP value of vegetation increases from 864 gC/m~2 in 2000 to 1024 gC/m~2 in 2016,with an average increase of 63 gC/m~2 in every 10 years.(3)The vegetation ecological quality has greatly improved in recent years. Particularly the vegetation ecological quality in 2016 is the best since 2000,and the vegetation ecological quality index reaches 83. 7.
This paper aims to study the characteristics of the ecological quality variation of vegetation in Chishui River Basin in western China. The vegetation coverage,net primary productivity( NPP) and vegetation ecological quality data were obtained based on MODIS Normalized Difference Vegetation Index( NDVI) and meteorological monitoring data. The temporal and spatial characteristics of vegetation ecological quality in Chishui River Basin during the past 17 years were analyzed. The results show that:(1)The mean vegetation coverage increases from 55. 4% in 2000 to 67. 4% in 2016,with an average increase of 6. 8% in every 10 years.(2)The mean NPP value of vegetation increases from 864 gC/m~2 in 2000 to 1024 gC/m~2 in 2016,with an average increase of 63 gC/m~2 in every 10 years.(3)The vegetation ecological quality has greatly improved in recent years. Particularly the vegetation ecological quality in 2016 is the best since 2000,and the vegetation ecological quality index reaches 83. 7.
引文
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[3]董丹.我国西南地区植被净第一性生产力的遥感估算及其与气候和喀斯特地貌的关系[D].中国科学院研究生院中国科学院大学,2010.
[4]罗进.论赤水河流域经济可持续发展利弊及其对策[J].遵义师范学院学报,2010,12(6):22-27.
[5]蔡宏,何政伟,安艳玲,等.基于RS和GIS的赤水河流域植被覆盖度与各地形因子的相关强度研究[J].地球与环境,2014,42(4):518-524.
[6]Yang S F,An Y L. A study of ecological red-line area partitioning in the Chishui River Basin in Guizhou[C]. IOP Conference Series:Earth and Environmental Science. IOP Conference Series:Earth and Environmental Science,2016:012036.
[7]高一.贵州省生态环境质量评价及分析[J].地球与环境,2005(1):55-58.
[8]牛鲁燕,郑有飞,吴荣军,等.基于RS和GIS技术的贵州省植被生态环境监测分析[J].环境监测管理与技术,2009,21(3):14-18.
[9]王之明,母国宏.遥感技术在贵州省生态环境质量评价体系中的应用[J].环保科技,2011,17(2):23-27.
[10]许幼霞,周旭,赵翠薇,等. 1990—2015年间贵州省植被生态环境质量变化特征[J].地球与环境,2017,45(4):434-440.
[11]田鹏举,吴仕军,徐丹丹,等.贵州喀斯特石漠化植被时空变化特征研究[J].贵州气象,2017,41(5):20-24.
[12]田鹏举,徐丹丹,丁立国,等.基于MODIS-NDVI贵州省2005—2014年植被时空变化特征分析[J].贵州气象,2017,41(2):8-13.
[13]Potter C S,Randerson J T,Field C B,et al. Terrestrial ecosystem production:A process model based on global satellite and surface data[J]. Global Biogeochemical Cycles,1993,7(4):811-841.
[14]毛留喜,侯英雨,钱拴,等.气象条件驱动的生态与环境监测评估技术研究[C].首届全国生态与农业气象业务发展与技术交流会,2006.
[15]中国气象局公布2015年全国植被生态质量评估结果[J].今日国土,2016(3).