地理研究 ›› 2011, Vol. 30 ›› Issue (10): 1795-1804.doi: 10.11821/yj2011100006

• 土地资源与利用 • 上一篇    下一篇

湖南益阳市土地利用空间梯度及影响因素分析

贺艳华, 周国华, 唐凯   

  1. 湖南师范大学资源与环境科学学院,长沙 410081
  • 收稿日期:2010-11-09 修回日期:2011-05-23 出版日期:2011-10-20 发布日期:2011-10-20
  • 通讯作者: 周国华(1965-),男,湖南娄底人,教授,主要从事土地评价、城乡规划及乡村地理等方面研究。 E-mail:uuy828@163.com
  • 作者简介:贺艳华(1982-),女,湖南宁乡人,讲师,主要从事城乡发展与土地可持续利用研究。 E-mail:zlgx888@163.com
  • 基金资助:

    国家自然基金项目(41071097);湖南师范大学人文地理学重点学科

Land-use spatial gradient and its influence in Yiyang city

HE Yan-hua, ZHOU Guo-hua, TANG Kai   

  1. Department of Resources and Environment Science, Hunan Normal University, Changsha 410008, China
  • Received:2010-11-09 Revised:2011-05-23 Online:2011-10-20 Published:2011-10-20

摘要: 利用湖南益阳市2008年1∶1万土地利用现状数据库,采用景观指数分析与空间统计分析方法,对益阳市域土地利用空间梯度特征及影响因素进行研究。研究表明:益阳市土地利用空间梯度特征明显,呈现出"平湖—丘岗—山地"地域梯度、"中心—外围"城乡梯度、道路两侧轴带梯度;自然地理环境、经济社会发展以及差别化的区域发展政策等人为活动因素是土地利用空间梯度差异形成的主要原因,且各影响因素彼此之间相互关联与制约;自然地理环境是土地利用空间梯度差异形成尤其是"平湖—丘岗—山地"地域梯度形成的基础因子,但由于其变化性弱对未来土地利用格局变化的促动作用相对较小;人为活动因素是促进土地利用空间梯度形成及演变的关键性因素,尤其对城乡梯度、轴带梯度的影响较为明显,并主要通过活动强度、活动方式以及活动频率的变化而发挥着不同的作用。

关键词: 土地利用空间梯度, 空间统计分析, 景观指数, 益阳市

Abstract: Along with the tremendous impact of regional development strategy, urban and rural transformation, industrial restructuring and upgrading of the consumption structure of residents on the regional land use, land-use changes more and more rapidly, and sustainable land use also has become a very important problem. In this paper, a case study was conducted in Yiyang, a developing city in Central China. By using the land-use data with a scale of 1:10000 in 2008, this article analyzed the current characteristics of land-use spatial pattern in Yiyang. The study is conducted by the integration of landscape matrics analysis and spatial statistics analysis, with the aid of GIS software such as ArcGis and MapGis and landscape analysis software such as Fragstats. This research shows that the spacial pattern of land-use class-level patches is different from each other in Yiyang. Land use pattern shows a degree of spatial gradient, and the "lake-plain-hill-mountain" terrestrial gradient, "core-periphery" urban-rural gradient and gradient vertical to the transportation lines is prominent. And the main causes are terrestrial difference of geographical environment components such as topography, climate, soils, surface water, and natural disasters and regional differences of human activity such as socioeconomic development and regional development policies, and the factors related to each other. Natural geographic environment is the basic factors for the land-use spacial gradient especially for terrestrial gradient, but it has a little effect on spacial evolution of land-use pattern in the future. Comparatively, human activity, as a key factor, especially to urban-rural gradient and gradient vertical to the transportation lines, acts in different activity intensities, activity ways and activity frequencies.

Key words: land-use spatial gradient, spatial statistics analysis, landscape matrics, Yiyang