摘要
全面系统的定量分析区域土地利用结构特征是掌握区域土地资源利用现状、实现土地合理开发与保护的前提。把位于贵州乌蒙山区的赫章县作为研究区,以2015年土地利用数据为基础,应用计量地理模型进行定量计算,用地理信息技术进行地图显示,探讨土地利用的数量结构和空间结构特点。结果表明:1)土地利用多样化指数介于0.515~0.668之间,集中化指数介于-0.412~0.573之间。多样化和集中化呈现负相关。2)研究区只有3种组合类型,且以两种地类的组合类型为主,多分布在研究区东部和西部。耕地和林地区位意义明显。土地利用程度不高,各乡镇差异小。3)研究区斑块形态较为复杂,耕地和林地占有绝对优势,为区域的景观基质。园地、水域、交通用地分布最离散。
Comprehensive and systematic quantitative analysis of regional land use structural characteristics is the prerequisite for mastering the status of regional land resource utilization and realizing the rational development and protection of land.In this paper,Hezhang County of Wumeng mountainous area in Guizhou Province was used as the research area.Based on its land use data in 2015,the quantitative geography model was used for calculation,and the results were displayed by using geographic information technology.The quantitative structure and spatial structure characteristics of land use were discussed.The results showed that:(1) The land use diversity index was between 0.515 and 0.668,and the concentration index was between -0.412 and 0.573;diversity and concentration were negatively correlated.(2) There were only three types of land use combinations in the research area,and they were mainly composed of two types of land use,mostly distributed in the east and west of the research area;the location meaning of cultivated land and forest land was obvious,while the land use degree was not high,and the differences between towns and villages were small.(3) The patch pattern in the research area was complex,with cultivated land and forest land showing absolute dominance;the distribution of gardens,waters and traffic land were the most discrete.
作者
向雪兰
陈亚颦
XIANG Xuelan;CHEN Yapin(School of Tourism and Geographical Sciences,Yunnan Normal University,Kunming 650500,China)
出处
《贵州科学》
2019年第3期47-54,共8页
Guizhou Science
关键词
土地利用
空间结构
数量结构
计量地理模型
乡镇尺度
land use
spatial structure
quantity structure
quantitative geographic model
township scale
