基于改进灰色关联模型的兰州市土地集约度与利用结构关系研究
Study on the Relationship between Urban Land Intensive Degrees and Land Use Structure Based on the Improved Grey Relational Model in Lanzhou City
张昌善 1程文仕 2刘学录2
作者信息
- 1. 甘肃农业大学资源与环境学院,甘肃兰州730070;玉门市国土资源局,甘肃酒泉735000
- 2. 甘肃农业大学资源与环境学院,甘肃兰州730070
- 折叠
摘要
在测算兰州市土地集约度的基础上,构建改进的灰色关联度模型,研究兰州市土地集约度与土地利用结构之间的相关性.结果表明:1998-2008年兰州市土地集约度逐步提高,经历了由粗放、基本集约到较集约的3个阶段;土地集约度与土地利用结构之间呈现明显的关联性,集约度与建设用地、林地负相关,且与建设用地负相关性较高;与耕地、牧草地、未利用地、园地呈现正相关且相关程度依次减弱.因此,调整土地利用结构是提高土地集约利用的有效途径,因地制宜地控制建设用地,优化耕地、园地、牧草地、未利用地的利用,有助于提高土地集约度.
Abstract
On the basis of land intensive degrees results,quantitative relationship between land intensive degrees and land use structure were studied using the improved grey relational model.The results showed that:Land intensive degrees gradually increased and had experienced from extensive to nore intensive 3 periods in Lanzhou City during 1998-2008;land intensive degrees and land use structure had obvious relation that intensive degrees were negatively related to construction land,woodland,particularly negative relation high for construction land,and the arable land,forage land,unused land and garden land presented positive relation that weakened accordingly.Therefore,adjusting land use structure was effective way to improve land intensive utilization,to restrain the spread of construction land according to local conditions and to optimize cultivated land,garden land,meadow land and unused land utilization,which help to improve land intensive degrees.
关键词
土地集约度/土地利用结构/乘数合成归一法/改进灰色关联度模型Key words
Land intensity degree/Land use structure/Multipliers method of synthesis/The improved grey relational model引用本文复制引用
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据