發(fā)布時(shí)間：2018-04-27 17:24

  本文選題：生態(tài)脆弱性 + SRP模型�。� 參考：《地理科學(xué)》2015年11期

【摘要】：依據(jù)遼寧省朝陽(yáng)縣生態(tài)環(huán)境特點(diǎn),利用朝陽(yáng)縣2003、2006、2009、2012年4個(gè)年份的氣候、降水量、遙感影像、土壤與數(shù)字高程模型(DEM)等基礎(chǔ)數(shù)據(jù),利用GIS結(jié)合SRP模型研究遼寧省朝陽(yáng)縣2003~2012年間的生態(tài)脆弱性。研究表明:1 2003、2006、2009年朝陽(yáng)縣的生態(tài)脆弱性呈逐年惡化趨勢(shì),2006、2009年微度脆弱的面積較2003、2006年分別有所減小,比率分別為15.99%,10.86%;2006、2009年輕度脆弱、中度脆弱、重度脆弱、極度脆弱的面積較2003、2006年均出現(xiàn)不同程度的增加,其中,生態(tài)脆弱性偏高的地方主要分布在工業(yè)發(fā)達(dá)、人口眾多、地勢(shì)較高的城鄉(xiāng)住宅用地及農(nóng)業(yè)區(qū)。到2012年朝陽(yáng)縣生態(tài)脆弱性開始有所好轉(zhuǎn)。2勝利鄉(xiāng)是生態(tài)脆弱性最嚴(yán)重的地區(qū),極度脆弱、重度脆弱、中度脆弱的面積分布中勝利鄉(xiāng)均分布最多,比率分別為14.15%,10.26%,8.84%,七道嶺鄉(xiāng)是生態(tài)脆弱性最弱的地區(qū),微度脆弱比率為6.42%。
[Abstract]:According to the characteristics of ecological environment in Chaoyang County, Liaoning Province, the basic data of climate, precipitation, remote sensing image, soil and digital elevation model (DEM) of Chaoyang County in 2012 were used. The ecological fragility of Chaoyang County in Liaoning Province from 2003 to 2012 was studied by using GIS and SRP model. The results show that the ecological vulnerability of Chaoyang County in 2009 is worsening year by year, and the area of micro-vulnerability in 2009 is smaller than that in 2003 and 2006, respectively, with the ratio of 15.990.86% in 2006, mild fragility, moderate fragility and severe fragility in 2009. Compared with 2003 and 2006, the extremely fragile area increased in different degrees, among which, the areas with high ecological vulnerability were mainly distributed in urban and rural residential land and agricultural areas with developed industry, large population and high topography. By 2012, the ecological vulnerability of Chaoyang County had begun to improve, and Victory Township was the region with the most serious ecological vulnerability, which was extremely fragile and severely fragile. The area distribution of the moderate fragility was the highest in Shengli Township. The ratios were 14.15 and 10.26, respectively. Qidaoling Township was the region with the weakest ecological vulnerability, and the micro-vulnerability ratio was 6.42.
【作者單位】： 遼寧師范大學(xué)自然地理與空間信息科學(xué)遼寧省重點(diǎn)實(shí)驗(yàn)室;遼寧工程技術(shù)大學(xué)測(cè)繪與地理科學(xué)學(xué)院;中國(guó)科學(xué)院地理科學(xué)與資源研究所;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(41171137) 2013年國(guó)家級(jí)大學(xué)生創(chuàng)新創(chuàng)業(yè)訓(xùn)練計(jì)劃項(xiàng)目(201310165001) 遼寧省創(chuàng)新團(tuán)隊(duì)項(xiàng)目(wt2011002)資助
【分類號(hào)】：X43

【參考文獻(xiàn)】

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