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OALib Journal期刊
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灌区中居民点与水土资源邻近关系——以张掖绿洲为例

, PP. 797-804

Keywords: 灌区,居民点,水浇地,渠系,NNI,张掖绿洲

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Abstract:

干旱区内陆河流域的核心在于水,核心区域在于绿洲。灌区是构成绿洲的最基本单元。论文应用最邻近距离指数(NNI),分析了张掖绿洲灌区中居民点与水浇地及渠系之间的空间耦合关系,结果表明:在张掖大小共39个灌区中,有22个灌区的NNI值<0.5,灌区中居民点总体表现为聚集分布态势,但空间差异明显,沿山灌区居民点聚集程度明显高于绿洲中腹灌区,映射出不同灌区水资源的基本约束力。从微观角度考察,居民点与水浇地、渠系、道路之间的平均临近距离从沿山独立灌区-绿洲边缘灌区-绿洲中腹灌区逐步增加,说明沿山灌区水浇地、渠系与居民点的关系更密切。灌区中居民点与渠系、水浇地表现出显著的"亲水型"和"亲地型","质点"(居民点)-"廊道"(渠系和路网)-"域面"(土地)之间存在非常密切的相互依存关系。

References

[1]  GIRAUD J.The evolution of settlement patterns in the eastern Oman from the Neolithic to the early Bronze Age(6000-2000BC)[J].Comptes Rendus Geoscience,2009,341(8-9);739-749.
[2]  TIAN Guangjin,QIAO Zhi,ZHANG Yaoqi.The investigation of relationship between rural settlement density,size,spatial distribution and its geophysical parameters of China using Landsat TM images[J].Ecological Modelling,2012,231(24);25-36.
[3]  GIRAUD J.The evolution of settlement patterns in the eastern Oman from the Neolithic to the early Bronze Age(6000-2000BC)[J].Comptes Rendus Geoscience,2009,341(8-9);739-749.
[4]  TIAN Guangjin,QIAO Zhi,ZHANG Yaoqi.The investigation of relationship between rural settlement density,size,spatial distribution and its geophysical parameters of China using Landsat TM images[J].Ecological Modelling,2012,231(24);25-36.

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