地球信息科学学报 ›› 2013, Vol. 15 ›› Issue (5): 775-782.doi: 10.3724/SP.J.1047.2013.00775

• 遥感科学与应用技术 • 上一篇    

土库曼斯坦马雷绿洲土地利用程度的遥感与GIS分析

姜红涛, 塔西甫拉提·特依拜, 侯艳军, 张严俊, 张飞, 陶兰花   

  1. 新疆大学资源与环境科学学院 绿洲生态教育部重点实验室, 乌鲁木齐 830046
  • 收稿日期:2013-03-13 修回日期:2013-04-27 出版日期:2013-09-29 发布日期:2013-09-29
  • 通讯作者: 塔西甫拉提·特依拜(1958-),男,教授,博士生导师,主要从事资源环境遥感研究。E-mail:tash@xju.edu.cn E-mail:tash@xju.edu.cn
  • 作者简介:姜红涛(1988-),男,河南省沈丘县人,硕士生,主要研究方向为遥感与土地利用。E-mail:htjiang603@163.com
  • 基金资助:

    国家国际科技合作项目(2010DFA92720-12)。

Analysis of the land use degree of Mary Oasis, Turkmenistan using remote sensing and GIS

JIANG Hongtao, TASHPOLAT Tiyip, HOU Yanjun, ZHANG Yanjun, ZHANG Fei, TAO Lanhua   

  1. 1. College of Resources and Environment Sciences, Xinjiang University, Urumqi 830046, China;
    2. Key Laboratory of Oasis Ecology (Xinjiang University) Ministry of Education, Urumqi 830046, China
  • Received:2013-03-13 Revised:2013-04-27 Online:2013-09-29 Published:2013-09-29

摘要:

本文以土库曼斯坦马雷绿洲为研究区,建立土地利用程度指数模型,利用2期遥感图像进行土地利用分类,对不同土地利用类型赋予相应属性;用正六边形网格采样,计算每个网格单元的土地利用程度综合指数;利用Kriging方法,对整个研究区进行土地利用程度综合指数插值和预测,分析马雷绿洲土地利用程度。结果表明:(1)研究区可利用土地利用类型主要为草地、耕地和撂荒地,占研究区的50%左右,呈减少态势;(2)研究区土地利用程度由中心向外围呈带状分布,土地利用程度综合指数等值线0.5为研究区绿洲与荒漠分界;(3)研究区中等及以上土地利用程度面积以年均0.079%递减,主绿洲与荒漠的面积比也由2001年的45.14:54.86分别降为2010年的42.06:57.94,说明研究区生态环境有恶化的趋势;(4)低、较高、高土地利用程度自身转移率均大于80%,而较低、中等土地利用程度自身转移率在50%左右。本文得到了马雷绿洲土地利用程度空间分布及变化,对研究区社会经济的发展及生态环境的保护具有指导意义,其技术流程和方法对今后的相关研究有一定的借鉴意义。

关键词: 马雷绿洲, 土地利用程度, 正六边形网格, 遥感

Abstract:

Land use is the main form of human activities which has profoundly changed the natural geographical environment, and its direct result is the situation of land cover change. The degree of land use not only reflects the natural attributes of soil, and also the combined effect of human and natural factors. This paper takes Mary Oasis, Turkmenistan, as the study area to establish a land use degree index model. We used two remote sensing images which are in the same phase and SVM method for land use classification, and gave the corresponding properties of each type of land use. Sampling in the study area based on regular hexagonal grids, area land use degree index in each grid cell is calculated by GIS. We made the index interpolation and the land use degree forecast for the entire study area using Kriging Method, divided the whole area into five levels, and analyzed the land use degree of Mary Oasis. It concluded: (1) grassland, arable land and abandoned land are the main available land use types in the study area, and they account for about 50%, but have a decreasing trend totally; (2) the zonal distribution of land use degree of the study area is from the center to the periphery, and the contour 0.5 of land use degree is about the boundary of oasis and desert of the study area; (3) the area of middle and higher land use degree of the study area reduce at the rate of 0.079% per annum, the area ratio of main oasis and desert also reduced from 45.14:54.86 in 2001 to 42.06:57.94 in 2010, indicating that the ecological environment of the study area has a trend of deterioration; (4) the self-transfer rates of low, moderate and high land use degree are all greater than 80%, while the self-transfer rates of slightly low and middle land use degree are around 50%. We got the spatial distribution and inter-annual change of the land use degree of Mary Oasis. And this work has a guiding significance for social development and the protection of the ecological environment of the study area, and has a certain referential significance for the future relevant research on the technical processes and methods.

Key words: regular hexagonal grid, Mary Oasis, land use degree, remote sensing