干旱区生态环境知识资源中心(Arid): 基于网格单元的乌鲁木齐市土地覆被/利用时空变化

Arid

	基于网格单元的乌鲁木齐市土地覆被/利用时空变化
其他题名	Spatial-temporal change of Urumqi urban land use and land cover based on grid cell approach
	买买提江·买提尼亚孜 1; 阿里木江·卡斯木 2
来源期刊	农业工程学报
ISSN	1002-6819
出版年	2018
卷号	34 期号:1 页码:210-216
中文摘要	随着城市化进程在全球范围内的快速推进,对城市区域土地覆被/土地利用变化产生影响。采用1990、2000和2011年3期Landsat TM5遥感数据,提取乌鲁木齐市土地覆被/土地利用信息,并将各期用地分类数据分别转入250 m* 250 m的矢量网格单元,计算每个网格单元内各类用地面积占网格单元面积比例的变化,探讨乌鲁木齐市19902011年土地覆被/土地利用时空变化特征及驱动因素,并通过相关和回归分析,研究19902011年各用地类型之间相互转移和替代的关系。结果表明:1)19902011年乌鲁木齐市城市快速扩展,大面积裸地和绿地转化为建设用地,建设用地持续增加,从1990年157.37 km~2增加到2011年的444.89 km~2,裸地持续减少,绿地先减少后增加,水体则呈现缓慢增长的趋势。2)研究区内不同区域和方向由于受到地形条件、政策、城市规划以及道路交通网络等因素的影响,土地覆被/土地利用呈现出不同的时空变化趋势,建成区老城区内部呈现挖潜的集约式增长,外围则是蔓延式扩展。该研究对该地区城市建设和发展具有借鉴意义。
英文摘要	Urbanization is one of the inevitable processes due to economic development and rapid population growth.It has been an important component of land use and land cover change.This study investigated the spatial-temporal change of land use and land cover in Urumqi based on grid cell approach.Urumqi is the capital and the centre of culture,economy and transportation in Xinjiang Uyghur autonomous region,located in north-western China and characterized by an arid landscape.By using Landsat images from 1990,2000 and 2011,land use and land cover information on Urumqi city were extracted.The land use and land cover data were apportioned to the grid cells with the size of 250 m*250 m per cell to quantify the area and percentage of change in land cover types in each cell.The sum of the land cover type area of all pixels that overlaid with the cell was divided by the area of the cell as the percentage of a land cover type within a cell.The land use and land cover vector maps of Urumqi city were then drawn.Based on these vector maps,the proportion of each land cover category within a grid cell area were calculated.Finally,we analyzed the spatial-temporal changing characteristics of land use and land cover of Urumqi city from 1990 to 2011 and its driving factors using the proportional land cover maps.The transforming and replacing relationship between different land cover categories were analyzed as well based on the correlation and regression methods.The result showed that: 1) from 1990 to 2011,Urumqi city experienced rapid expansion.A large amount of bare land and green land were converted into construction land.The construction land increased from 157.37 km~2 in 1990 to 444.89 km~2 in 2011.The bare land declined continuously from the percentage of 75.13% in 1990 to 49.79% in 2011.The green land had slight decline in 2000 and then increased to 402.80 km~2 in 2011.The water body was slightly increased.2) Land use and land cover showed different changing trends in different area and directions within the study area due to the impacts of topography,policy,urban planning,road system and so on.3) The correlation between change in the construction land area and that in the bare land area was negative about-0.7 and that between that in the construction land and the green land was about-0.2.The correlation between green land and the bare land was about-0.5.Thus,the change in construction land area and green land area was caused by the bare land area change.Based on the grid cell approach,we cannot only analyze the overall changing characteristics of land use,but precisely quantify the spatial-temporal changing characteristics of different areas and directions within the study region and its driving factors.The data based on the grid unit can better provide valuable information for the current urban development in Urumqi and can better predict the future urban development.
中文关键词	土地利用 ; 遥感 ; 城市化 ; 网格单元 ; 时空变化 ; 乌鲁木齐市
英文关键词	land use remote sensing urbanization grid cell spatial-temporal change Urumqi city
语种	中文
国家	中国
收录类别	CSCD
WOS类目	TRANSPORTATION
WOS研究方向	Transportation
CSCD记录号	CSCD:6157719
来源机构	新疆农业大学 ; 新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237953
作者单位	1.新疆农业大学管理学院, 乌鲁木齐, 新疆 830052, 中国; 2.新疆师范大学地理科学与旅游学院;;新疆师范大学丝绸之路经济带城镇化发展研究中心, ;;, 乌鲁木齐;;乌鲁木齐, ;; 830054;;830054
推荐引用方式 GB/T 7714	买买提江·买提尼亚孜,阿里木江·卡斯木. 基于网格单元的乌鲁木齐市土地覆被/利用时空变化[J]. 新疆农业大学, 新疆师范大学,2018,34(1):210-216.
APA	买买提江·买提尼亚孜,&阿里木江·卡斯木.(2018).基于网格单元的乌鲁木齐市土地覆被/利用时空变化.农业工程学报,34(1),210-216.
MLA	买买提江·买提尼亚孜,et al."基于网格单元的乌鲁木齐市土地覆被/利用时空变化".农业工程学报 34.1(2018):210-216.