基于地理数学方法的河西走廊土地利用结构分析——以酒泉市为例  

Analysis on land use structure in Hexi Corridor based on mathematical geography methods ——Taking Jiuquan City as an example

作　　者：王敏婕[1] 王海鸿[1] 朱前涛[1] 

机构地区：[1]兰州大学管理学院,甘肃兰州730000

出　　处：《甘肃农业大学学报》2012年第1期125-133,共9页Journal of Gansu Agricultural University

摘　　要：基于2000年～2009年酒泉市第2次土地详细调查数据,采用地理数学模型与方法,对酒泉市及市内各县区的土地利用数量结构和空间格局现状及其变化进行了定量分析,对土地利用时间序列变化、土地利用空间结构变化、土地利用结构类型3个方面做了相关研究.结果表明:在时间变化分析上,酒泉市土地利用类型中面积增加最大的是未利用土地,减少量最大的是牧草地;在空间变化分析上,酒泉市未利用土地的分布很平均,水利用地分布不均匀,但总体上相对合理,牧草地、林地和交通用地分布很不均衡,耕地、居民地和园地分布极不均衡;在土地利用现状结构类型上,除肃州区外,中部绿洲平原区土地利用结构多样性指数都在中、低一级,其中玉门市、金塔县多样性指数分别为0.322 4,0.224 2,敦煌市和瓜州县多样性指数分别为0.054 4、0。071 2,属低中多样性,且与其他县区相差较大.This article based on 2000~2009 changes in the survey data of Jiuquan City,using the models and methods of mathematical geography,making quantitative analysis Jiuquan City and the county areas below of the use structure of the land and spatial pattern and the number of status and changes.The reasearch was conducted from three aspects,the time series of land use change,land use changes in spatial structure and the types of the use structure of the land.The results showed that in time change analysis on land use types,the largest increasing area was unused land,the largest reducing area was the grassland.In space change analysis,unused land distributed on the average,water land showed uneven distribution,however,in general,the land use structure of Jiuquan City was relatively reasonable.Grassland,woodland and land for traffic distribution were not balanced.Cultivated land,residents and field distribution were extremely imbalanced.In the current land use structure types,except the oasis states in central adjudicates on land use structure diversification in-index lower levels,Yumen City and Jinta County presented diversity.Dunhuang City and Guazhou Country showed the lowest diversified index,and they had significant difference with other counties.

关 键 词：地理数学方法 土地利用结构 河西走廓 酒泉市 

分 类 号：F301.24[经济管理—产业经济]