- 相關(guān)推薦
科爾沁沙地典型區(qū)域地表環(huán)境變化與氣候變化的響應關(guān)系
摘要: 以科爾沁沙地阿古拉蘇木為典型代表區(qū)域, 應用1987-2006年20 a間12幅遙感影像及相應氣候數(shù)據(jù), 分析了地表環(huán)境變化與氣候變化間的響應關(guān)系, 提出了表征響應敏感程度、影響程度大小排序的氣候因子影響指數(shù)(CFII). 結(jié)果表明: 近20 a研究區(qū)地表環(huán)境變化表現(xiàn)為不斷惡化的趨勢. 各類地表環(huán)境變化與氣候因子變化間有著良好的響應關(guān)系, 各類氣候因子變化以不同方式和過程不同程度地影響著地表環(huán)境的變化. 響應敏感度最大, 即對地表環(huán)境變化影響最大的是相對濕度, 其次為降水量和蒸發(fā)量. 水分條件是制約干旱半干旱地區(qū)地表環(huán)境變化的主導因素. Abstract: In this paper, the Agura town--the typical region of Horqin sandy land is taken as study area. Using 12 pieces of remote sensing images and climatic data in the recent 20 years, the effect of climatic change on surface environments is analyzed. Climatic factor impact index (CFII) and the ranking of influence degree are proposed to characterize the response sensitive degree. The results show that: In the recent twenty years, surface environment of the study area is in a deterioration. There is a good relationship between surface environment and climatic factor. Various climatic factors influence the surface environment in different way and at different level. The most sensitive factor is relative humidity, followed by precipitation and evaporation. On the whole, water condition is the key factor that governs the surface environment change in arid and semi-arid areas. 作 者: 馬龍 劉廷璽 MA Long LIU Ting-xi 作者單位: 內(nèi)蒙古農(nóng)業(yè)大學,水利與土木建筑工程學院,內(nèi)蒙古,呼和浩特,010018 期 刊: 冰川凍土 ISTICPKU Journal: JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY 年,卷(期): 2009, 31(6) 分類號: X144 P467 關(guān)鍵詞: 科爾沁沙地 典型區(qū)域 地表環(huán)境 氣候變化 響應關(guān)系 氣候因子影響指數(shù) Keywords: Horqin Sandy Land typical region surface environment climate change response climatic factor impact index【科爾沁沙地典型區(qū)域地表環(huán)境變化與氣候變化的響應關(guān)系】相關(guān)文章:
典型商務英語對話:建立貿(mào)易關(guān)系05-04
環(huán)境的變化作文02-24
寫環(huán)境變化的作文11-10
環(huán)境變化作文02-20
班級區(qū)域環(huán)境創(chuàng)設方案09-07
響應全民健身的口號03-14