本文選題：內陸河 + 土地退化��； 參考：《遙感技術與應用》2017年02期

【摘要】：土地覆被變化是反映區(qū)域氣候變化和人類活動強度的重要指標,監(jiān)測土地覆被變化是遙感應用的重要領域。阿姆河作為中亞重要的內陸河之一,是維系區(qū)域生態(tài)環(huán)境和經濟發(fā)展的重要紐帶。利用歐空局(ESA)的Global Land Cover 2000(GLC2000)和全球陸地覆被數據GlobCover的2005、2009共3期數據,以Chatly水文站點位置劃分流域上下游,分析了整個流域及上游土地覆被時空變化。研究結果表明:2000~2009年阿姆河流域增加的耕地面積主要來自于自然植被和裸地,裸地面積的增加主要來自于自然植被,水體面積減少10%;在流域上游,2000~2009年耕地面積的增加約占整個流域耕地面積增加的50%,且主要發(fā)生在塔吉克斯坦和烏茲別克斯坦的山麓和平原地區(qū),2000~2005年自然植被面積增加主要來自于撂荒的耕地和裸地,而2005~2009年自然植被面積減小主要轉換為裸地,水體面積則在2000~2009年增加了153%。阿姆河流域的土地覆被時空變化分析有助于解釋人類活動對該流域環(huán)境系統(tǒng)的影響,期望對流域水資源綜合管理有所啟示。
[Abstract]:Land cover change is an important index to reflect regional climate change and the intensity of human activities. Monitoring land cover change is an important field of remote sensing applications.As one of the important inland rivers in Central Asia, Amu River is an important link to maintain the regional ecological environment and economic development.Using the data of Global Land Cover 2000 GLC2000 and global land cover data GlobCover 20052009, the upper and lower reaches of the watershed are divided by the location of the Chatly hydrological station, and the temporal and spatial changes of land cover in the whole basin and upper reaches are analyzed.The results show that the increase of cultivated land in the Amu River basin from 2000 to 2009 mainly comes from natural vegetation and bare land, and the increase of bare land area mainly comes from natural vegetation.The increase of cultivated land area in the upper reaches of the basin accounted for about 50 percent of the increase in the area of cultivated land in the whole basin, and mainly occurred in the foothills and plains of Tajikistan and Uzbekistan, and the area of natural vegetation increased from 2000 to 2005.Canada mainly comes from abandoned farmland and bare land,From 2005 to 2009, the area of natural vegetation was reduced to bare land, and the area of water increased by 153in 2000 ~ 2009.The analysis of temporal and spatial changes of land cover in the Amu River basin is helpful to explain the impact of human activities on the environmental system of the basin, and it is expected to be enlightening to the integrated management of water resources in the basin.
【作者單位】： 中國科學院西北生態(tài)環(huán)境資源研究院甘肅省遙感重點實驗室;中國科學院大學;蘭州大學資源環(huán)境學院西部環(huán)境教育部重點實驗室;蘭州大學絲綢之路經濟帶研究中心;
【基金】：基金委重大研究計劃“黑河流域生態(tài)-水文過程集成研究”(91425303)
【分類號】：P237
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本文編號：1749075