基于MODIS的蒙古国2003-2017年荒漠化动态监测
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摘要
基于MODIS归一化植被指数(NDVI)产品数据,通过像元二分模型估算了蒙古国2003-2017年植被覆盖度,进行荒漠化监测。结果表明,蒙古国是一个受荒漠化危害极为严重的国家,极重度、重度荒漠化土地占国土面积的50.70%;2003-2017年,极重度和重度荒漠化所占国土总面积的比例从前期的55.99%减少到后期的50.70%,而轻度和非荒漠化土地所占面积比例从前期的26.11%增加到28.13%。土地利用转移矩阵显示,2003-2017年研究区极重度荒漠化和重度荒漠化转出面积均>转入的面积,呈减少趋势。而非荒漠化和轻度荒漠化转入面积要>转出面积,呈增加趋势。近15年蒙古国生态环境整体趋于改善,荒漠化的发展态势不明显。
Based on MODIS NDVI data,the vegetation coverage in Mongolia from 2003 to 2017 was estimated by the pixel binary model.Mongolia is a country that is seriously endangered by desertification.Extremely severe and severe desertification land accounted for 50.70% of the total land area.The percentage of extremely severe and severe desertification land decreased from 55.99% in 2003 to 50.70% in 2017.In the same period,the percentage of light and non desertification land increased from 26.16% to 28.13%.The land use transfer matrix showed that the area of extremely severe desertification and severe desertification was larger than the area transferred in 2003-2017,showing a decreasing trend.The area of desertification and light desertification was greater than the area transferred out,showing an increasing trend.There was no significant desertification development in Mongolia during the past 15 years.
Based on MODIS NDVI data,the vegetation coverage in Mongolia from 2003 to 2017 was estimated by the pixel binary model.Mongolia is a country that is seriously endangered by desertification.Extremely severe and severe desertification land accounted for 50.70% of the total land area.The percentage of extremely severe and severe desertification land decreased from 55.99% in 2003 to 50.70% in 2017.In the same period,the percentage of light and non desertification land increased from 26.16% to 28.13%.The land use transfer matrix showed that the area of extremely severe desertification and severe desertification was larger than the area transferred in 2003-2017,showing a decreasing trend.The area of desertification and light desertification was greater than the area transferred out,showing an increasing trend.There was no significant desertification development in Mongolia during the past 15 years.
引文
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[15] 丁国栋.区域荒漠化评价中植被的指示性及盖度分级标准研究——以毛乌素沙区为例[J].水土保持学报,2004,18(1):158-160.DING G D.Study on indicative feature and cover classification of vegetation in regional desertification assessment—taking Mu Us Sandland as an example[J].Journal of Soil and Water Conservation,2004,18(1):158-160.(in Chinese)
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[17] 布仁高娃.蒙古国荒漠化现状、成因及草原畜牧业前景研究[M].呼和浩特:内蒙古大学,2011.
[2] 贺振,贺俊平.基于MODIS的黄土高原土地荒漠化动态监测[J].遥感技术与应用,2011,26(4):476-481.HE Z,HE J P.Desertification monitoring of Loess Plateau based on MODIS [J].Remote Sensing Technology and Application,2011,26(4):476-481.(in Chinese)
[3] 滑永春,彭道黎,陈鹏飞.基于MODIS NDVI的京津风沙源工程治理区荒漠化动态监测[J].西北林学院学报,2010,25(6):210-215.HUA Y C,PENG D L,CHEN P F.MODIS NDVI based dynamic monitoring of desertification in the sandstorm source control project area around Beijing and Tianjin[J].Journal of Northwest Forestry University,2010,25(6):210-215.(in Chinese)
[4] 陈芳,马全林,张德魁,等.干旱荒漠区植被恢复动态遥感监测[J].草业科学,2011,28(6):1075- 1078.CHEN F,MA Q L,ZHANG D K,et al.Dynamic monitoring of the vegetation restoration in arid desert area[J].Pratacultural Science,2011,28(6):1075- 1078.(in Chinese)
[5] 李亚云,杨秀春,朱晓华,等.遥感技术在中国土地荒漠化监测中的应用进展[J].地理科学进展,2009,28(1):209-214.LI Y Y,YANG X C,ZHU X H,et al.The application of remote sensing technology to land desertification monitoring[J].Progress in Geography,2009,28(1):209-214.(in Chinese)
[6] 梦翔冲,蒙古国沙质荒漠化对中国北方沙质荒漠化影响研究[M].长春:吉林大学,2012.
[7] 吕爱锋,周磊,朱文彬.青海省土地荒漠化遥感动态监测[J].遥感技术与应用,2014,29(5):803-811.Lü A F,ZHOU L,ZHU W B.The remote sensing based dynamic monitoring of land desertification in Qinghai Province[J].Remote Sensing Technology and Application,2014,29(5):803-811.(in Chinese)
[8] 张浩,余军,王锋,等.陕西省荒漠化、沙化土地监测与动态变化分析[J].西北林学院学报,2015,30(1):184-188.ZHANG H,YU J,WANG F,et al.Monitoring and dynamic analysis of desertification and sanded land of Shaanxi Province[J].Journal of Northwest Forestry University,2015,30(1):184-188.(in Chinese)
[9] 张飞,塔西普拉提·特依拜,丁建丽,等.新疆典型盐渍区植被覆盖度遥感动态监测——以渭干河-库车河三角绿洲为例[J].林业科学,2011,47(7):27-35.ZHANG F,TASHPOLAT·T,DING J L,et al.Dynamically monitoring vegetation cover by remote sensing in the typical salinization region of Xinjiang:a case study in delta oasis of Weigan and Kuqa Rivers[J].Scientia Silvae Sinicae,2011,47(7):27-35.(in Chinese)
[10] 闫敏,李增元,陈尔学,等.内蒙古大兴安岭根河森林保护区植被覆盖度变化[J].生态学杂志,2016,35(2):508-505.YAN M,LI Z Y,CHEN E X,et al.Vegetation fractional coverage change in Daxinganling Genhe forest reserve of Inner Mongolia[J].Chinese Journal of Ecology,2016,35(2):508-505.(in Chinese)
[11] 苗正红,刘志明,王宗明,等.基于MODIS NDVI的吉林省植被覆盖度动态遥感监测[J].遥感技术与应用,2010,25(3):387-393.MIAO Z H,LIU Z M,WANG Z M,et al.Dynamic monitoring of vegetation fraction change in Jilin Province based on MODIS NDVI[J].Remote Sensing Technology and Application,2010,25(3):387-393.(in Chinese)
[12] 周金霖,马明国,肖青,等.西南地区植被覆盖动态及其与气候因子的关系[J].遥感技术与应用,2017,32(5):966-972.ZHOU J S,MA M G,XIAO Q,et al.Vegetation dynamics and its relationship with climatic factors in southwestern China[J].Remote Sensing Technology and Application,2017,32(5):966-972.(in Chinese)
[13] 朱林富,谢世友,杨华,等.基于MODIS EVI的重庆植被覆盖变化的地形效应[J].自然资源学报,2017,32(12):2023-2033.ZHU L F,XIE S Y,YANG H,et al.The response of dynamic change in vegetation coverage to topography in Chongqing based on MODIS EVI[J].Journal of Natural Resources,2017,32(12):2023-2033.(in Chinese)
[14] 何磊,王超,别强,等.利用MOD13Q1产品监测肯尼亚2001-2010年荒漠化动态[J].中国沙漠,2013,33(1):46-52.HE L,WANG C,BIE Q,et al.Monitoring of desertification dynamic in Kenya during 2001-2010 using MOD13Q1 data[J].Journal of Desert Research,2013,33(1):46-52.(in Chinese)
[15] 丁国栋.区域荒漠化评价中植被的指示性及盖度分级标准研究——以毛乌素沙区为例[J].水土保持学报,2004,18(1):158-160.DING G D.Study on indicative feature and cover classification of vegetation in regional desertification assessment—taking Mu Us Sandland as an example[J].Journal of Soil and Water Conservation,2004,18(1):158-160.(in Chinese)
[16] 刘玉安,黄波,程涛,等.基于遥感和像元二分模型的内蒙古正蓝旗植被覆盖度格局和动态变化[J].水土保持通报,2012,32(1):92-97.LIU Y A,HUANG B,CHENG T,et al.Vegetation coverage distribution and its changes in plan blue banner based on remote sensing data and dimidiate pixel model[J].Scientia Geographica Sinica,2012,32(1):92-97.(in Chinese)
[17] 布仁高娃.蒙古国荒漠化现状、成因及草原畜牧业前景研究[M].呼和浩特:内蒙古大学,2011.
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