基于基尼系數(shù)和洛倫茲曲線的重慶市水資源空間匹配分析
發(fā)布時(shí)間:2018-02-03 22:38
本文關(guān)鍵詞: 水資源 基尼系數(shù) 洛倫茲曲線 空間匹配 出處:《中國農(nóng)村水利水電》2015年02期 論文類型:期刊論文
【摘要】:為了分析水資源的空間匹配狀況,根據(jù)區(qū)域用水結(jié)構(gòu)及水資源空間分布與耕地、人口和第2產(chǎn)業(yè)分布的關(guān)系,以基尼系數(shù)和洛倫茲曲線為理論基礎(chǔ)構(gòu)建水資源空間匹配模型。運(yùn)用該模型對重慶市水資源進(jìn)行實(shí)例分析,結(jié)果表明:重慶市水資源與耕地面積的基尼系數(shù)為0.392 6,處于比較合理的水平;水資源與人口數(shù)量的基尼系數(shù)為0.533 4,水資源與第2產(chǎn)業(yè)產(chǎn)值的基尼系數(shù)為0.709 4,均處于高度不平均的水平,匹配狀況極差。在結(jié)果分析的基礎(chǔ)上,提出了提升重慶市水資源空間匹配度的對策。最后對該模型的適應(yīng)性和有效性進(jìn)行了討論。
[Abstract]:In order to analyze the spatial matching of water resources, according to the relationship between regional water use structure and spatial distribution of water resources, the distribution of cultivated land, population and the second industry, Based on the Gini coefficient and Lorentz curve, the spatial matching model of water resources is constructed. The results show that the Gini coefficient of water resources and cultivated land area in Chongqing is 0.392 6, which is at a reasonable level. The Gini coefficient between water resources and population is 0.5334, and the Gini coefficient between water resources and the output value of the second industry is 0.709 4. The Gini coefficient of water resources and population is in a highly uneven level, and the matching condition is very poor. The countermeasures to improve the spatial matching degree of water resources in Chongqing are put forward. Finally, the adaptability and validity of the model are discussed.
【作者單位】: 西南大學(xué)地理科學(xué)學(xué)院;西南大學(xué)三峽庫區(qū)生態(tài)環(huán)境教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】:國家科技支撐計(jì)劃課題(2011BAC09B01、2006BAC01A16) 重慶市自然科學(xué)基金重點(diǎn)項(xiàng)目(CSTC2009BA0002)
【分類號】:TV213.4
【正文快照】: 水資源是人類生存和經(jīng)濟(jì)社會發(fā)展的物質(zhì)基礎(chǔ),是不可替代的重要自然資源[1]。水資源空間分布與區(qū)域經(jīng)濟(jì)、人類生活布局不一致,即水資源供給地與水資源消費(fèi)地在空間上不匹配,已成為困擾區(qū)域社會經(jīng)濟(jì)可持續(xù)發(fā)展的重要制約因素。因此,為了合理高效利用有限的水資源,水資源在空間上,
本文編號:1488541
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