【摘要】：主要通過遙感(RS)手段獲取研究所需數(shù)據(jù),采用地理信息系統(tǒng)(GIS)空間建模和空間分析方法,以衡陽(yáng)盆地為例,構(gòu)建提取水資源系統(tǒng)人為脆弱性變化信息的數(shù)學(xué)模型,生成水資源系統(tǒng)人為脆弱性變化圖層,分析近20年來衡陽(yáng)盆地水資源系統(tǒng)人為脆弱性變化的時(shí)空特征,并進(jìn)行趨勢(shì)分析。結(jié)果表明:1近20年來,衡陽(yáng)盆地人為水資源系統(tǒng)整體上變得更為脆弱,34.41%的區(qū)域人為脆弱性指數(shù)明顯增大,脆弱性指數(shù)變小的區(qū)域少;2脆弱性指數(shù)變化區(qū)域分異明顯,衡東縣、衡南縣的東部和祁東縣的西部以基本不變化和略微增大為主。祁東縣的東南角和耒陽(yáng)市的東部以增大類型為主,減小類型則主要集中在常寧市;3脆弱性指數(shù)演變呈現(xiàn)較顯著的"首尾時(shí)段增強(qiáng)明顯,中間時(shí)段相對(duì)穩(wěn)定"的特征;4區(qū)域水資源人為脆弱性指數(shù)主要表現(xiàn)為波動(dòng)型和穩(wěn)定型兩種趨勢(shì),單調(diào)增大型和單調(diào)減小型所占比例極小。
[Abstract]:This paper mainly uses remote sensing (RS) to obtain the needed data of the research, uses (GIS) spatial modeling and spatial analysis method, taking Hengyang Basin as an example, constructs a mathematical model to extract the information of artificial vulnerability change of water resources system. The temporal and spatial characteristics of anthropogenic vulnerability of water resources system in Hengyang Basin in recent 20 years were analyzed and the trend was analyzed. The results show that in the past 20 years, the anthropogenic water resources system in Hengyang Basin has become more fragile in the whole, 34.41% of the regional human vulnerability index is obviously increased, and the area with smaller vulnerability index has obvious regional differentiation, Hengdong County, the area where the vulnerability index is smaller, the regional variation of the vulnerability index is obvious. The eastern part of Hengnan County and the western part of Qidong County are basically unchanged and slightly larger. In the southeast corner of Qidong County and the eastern part of Leiyang City, the enlargement type is the main type, while the decrease type is mainly concentrated in the Changning City, where the vulnerability index evolves significantly. The characteristics of "relatively stable" in the middle period are characterized by the fluctuation type and the stable type of water resource anthropogenic vulnerability index. The proportion of monotonic increasing type and single adjusting and decreasing small type is very small.
【作者單位】： 衡陽(yáng)師范學(xué)院城市與旅游學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(編號(hào):41271533)
【分類號(hào)】：TV213.4

【相似文獻(xiàn)】

相關(guān)期刊論文 前5條

1 張瑜;韓軍青;;山西荒漠化類型與動(dòng)態(tài)演變研究[J];科技情報(bào)開發(fā)與經(jīng)濟(jì);2010年18期

2 許月卿,李雙成;我國(guó)人口與社會(huì)經(jīng)濟(jì)重心的動(dòng)態(tài)演變[J];人文地理;2005年01期

3 曾國(guó)平;黃利;曹躍群;;中國(guó)農(nóng)業(yè)全要素生產(chǎn)率:動(dòng)態(tài)演變、地區(qū)差距及收斂性[J];云南財(cái)經(jīng)大學(xué)學(xué)報(bào);2011年05期

4 袁冠;趙珊茸;徐暢;鄒屹;;剛玉晶體腐蝕像立體模型及腐蝕形貌動(dòng)態(tài)演變[J];人工晶體學(xué)報(bào);2013年12期

5 ;[J];;年期

相關(guān)重要報(bào)紙文章 前2條

1 通訊員　石家星;《中國(guó)現(xiàn)代沙漠動(dòng)態(tài)演變圖》問世[N];光明日?qǐng)?bào);2003年

2 石家星;《中國(guó)現(xiàn)代沙漠動(dòng)態(tài)演變圖》問世[N];中國(guó)測(cè)繪報(bào);2003年

，

本文編號(hào)：2190565