干旱区研究

干旱区研究 ›› 2011, Vol. 28 ›› Issue (2): 370-375.

• 其他 • 上一篇    

土地利用空间格局与功能特征关联分析——以天水市为例

郑凤娟1, 杨东1, 潘竟虎1,2, 郭盼盼1, 刘强1, 刘洪敏1   

  1. 1. 西北师范大学 地理与环境科学学院, 甘肃 兰州 730070;
    2. 兰州大学 资源环境学院, 甘肃 兰州 730000
  • 收稿日期:2009-11-11 修回日期:2010-09-07 出版日期:2011-04-25 发布日期:2011-09-06
  • 通讯作者: 杨东.E-mail:yangdong@ustc.edu.cn
  • 作者简介:郑凤娟(1984-),女,河北邢台人,硕士研究生,研究方向为区域资源、环境变迁与全球变化.E-mail:zhengfengjuan1987@163.com
  • 基金资助:

    甘肃省自然科学基金项目(0710RJZA104);西北师范大学知识与科技创新工程项目(NWNU-KJCXGC-03-60);国家自然科学基金项目(40599424和 40473006)

Analysis on the Correlation between Spatial Pattern and Functions of Land Use——A Case Study in Tianshui City

ZHENG Feng-juan1, YANG Dong1, PAN Jing-hu1,2, GUO Pan-pan1, LIU Qiang1, LIU Hong-min1   

  1. 1. College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China;
    2. College of Resources and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
  • Received:2009-11-11 Revised:2010-09-07 Online:2011-04-25 Published:2011-09-06

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摘要： 区域土地利用结构与功能特征之间的关系一直是土地利用研究的核心问题。基于天水市2005年土地变更调查数据,从土地利用数量结构与景观格局两方面,选取土地利用结构集中化指数、总体组合类型、区位指数、景观多样性指数、均匀度指数和优势度指数等,对各县区及不同地类的空间格局与功能特征进行定量分析。结果表明:天水市2005年土地组合类型以耕地—林地—牧草地—其他农用地的组合为主;土地利用集中化程度最高的是清水县,为0.082;耕地、城乡建设用地和交通水利用地大部分具有区位意义;多样性最高的是张家川县,为2.352,优势度最高的是麦积区,为1.604,均匀度最高的是张家川县,为0.742;多样性、均匀度指数与组合类型数呈同向关联,与优势度呈反向关联;人口密度与土地利用程度呈同向关联,经济密度与土地利用程度、区位指数的关联度不大。

关键词: 土地利用, 空间格局, 优势度, 人口密度, 景观指数, 天水, 甘肃

Abstract: Relationship between the structure and functions of regional land use is the core issue. Based on the data of land use change in Tianshui City, Gansu Province in 2005, the spatial pattern and functions of land use types in the county and district levels of the city were analyzed so as to reveal the land use structure by selecting the centrality index, holistic combination, location index, landscape diversity index, homogeneity index and dominance index of land use. The results show that the combination of land use types in Tianshui City was dominated by farmland-woodland-grassland; centrality index of land use in Qingshui County was the highest (0.082); cultivated land, urban and rural construction land, traffic land and water conservancy land had the location significance; the diversity index of land use in Zhangjiachuan County was the highest (2.352), the dominance index of land use in Maiji District was the highest (1.604), and the homogeneity index of land use in Zhangjiachuan County was the highest (0.742). The study results also reveal that there was a positive correlation between the diversity index, homogeneity index and combination of land use types, but a negative one between the dominance index and combination of land use types; there was a positive correlation between the population density and land use degree, but there was no correlation between the economic density, land use degree and location index. The study results can provide the reference for optimizing land use structure in the Loess Plateau in east Gansu Province.

Key words: land Use, spatial pattern, dominant degree, population density, landscape index, Tianshui City, Gansu province

中图分类号: 

  • F301.24