干旱区生态环境知识资源中心(Arid): 干旱区绿洲城镇扩张对耕地空间影响及预测--以河西走廊区域为例

Arid

	干旱区绿洲城镇扩张对耕地空间影响及预测--以河西走廊区域为例
其他题名	Spatial influence and prediction of oasis urban expansion on cultivated land in arid areas: A case study of the Hexi Corridor
	孙钦珂; 周亮; 唐相龙; 孙东琪; 党雪薇
来源期刊	自然资源学报
ISSN	1000-3037
出版年	2021
卷号	36 期号:4 页码:1008-1020
中文摘要	绿洲城镇是干旱地区人类活动最剧烈、人口集聚度最高、人-地关系矛盾最为突出的生态环境脆弱区。受全球气候变化影响及西部大开发战略推动,区域城镇与绿洲耕地之间的动态变化及利弊权衡成为当前关注的热点。基于1990-2015年多时相遥感影像数据,以典型绿洲城镇河西走廊为研究区,引入Markov和ANN-CA模型对河西走廊城镇用地与耕地的时空动态转换特征与规律展开探索,揭示了城镇扩张对耕地的影响过程与机制。研究结果表明: (1)河西走廊土地总体以未利用土地和草地为主,城镇用地与耕地仅占区域总面积的0.63%、 6.35%,且城镇与耕地面积共同经历了先减少后增加的V型变化趋势。(2)1990-2015年河西走廊城镇面积扩张了1.53倍,其中15.67%的城镇扩张用地来自耕地占用,其他主要来源于草地,沙漠和戈壁等未利用土地。另外,区域内5个地市城镇扩张的耕地占用差异较大。(3)结合Markov与ANN-CA模型的模拟和预测结果表明,2015-2030年河西走廊79.77%的城镇扩张用地将来源于周边耕地,且城镇空间扩张方式以外延扩展为主,未来耕地被城镇侵占压力较大。研究结果将为干旱区相似区域空间规划和耕地保护提供决策支持。
英文摘要	Oasis city and town is a fragile ecological environment area with the most densely population, the most intense human activities and the most prominent contradiction between human and land in arid regions. Affected by global climate change and China's western development strategy, the dynamic changes between regional towns and oasis cultivated land and the trade- offs between them have become the hotspots of current concern. Based on the multi-temporal remote sensing land use data from 1990 to 2015, this paper takes the oasis cities and towns of the Hexi Corridor, a typical arid area as the research region, introduces Markov and ANN-CA models to deeply explore the land change process, quantifies the temporal and spatial dynamic transformation of urban land and cultivated land, and reveals the process and mechanism of urban expansion from cultivated land. The results show that: (1) The land types in Hexi are mainly unused land and grassland, and the urban and cultivated land accounted for 0.63% and 6.35%, respectively. The urban land and cultivated land areas showed a V-shaped change trend of first decrease and then increase. (2) From 1990 to 2015, the urban area of the expanded by 1.53 times, of which 15.67% was converted from cultivated land, and the others were mainly from unused land such as grasslands, deserts, and Gobi. The proportions of cultivated land occupied by urban expansion in five cities were quite different. (3) The simulation and prediction results combined with the Markov and ANN-CA models show that 79.77% of urban expansion land will come from cultivated land in 2015-2030, and the mode of urban spatial expansion is mainly extended. In addition, the pressure on cultivated land occupied by urban expansion will be greater in the future. The results will provide decision making support for future urban development planning and cultivated land protection.
中文关键词	城镇扩张 ; 耕地流失 ; 空间规划 ; 可持续发展
英文关键词	CA urban expansion cultivated land loss cellular automata spatial planning sustainable development
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Business & Economics
CSCD记录号	CSCD:6957083
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365495
作者单位	孙钦珂, 兰州交通大学测绘与地理信息学院;;地理国情监测技术应用国家地方联合工程研究中心, ;;地理国情监测技术应用国家地方联合工程研究中心, 兰州;;兰州, ;; 730070;;730070.; 党雪薇, 兰州交通大学测绘与地理信息学院;;地理国情监测技术应用国家地方联合工程研究中心, ;;地理国情监测技术应用国家地方联合工程研究中心, 兰州;;兰州, ;; 730070;;730070.; 周亮, 兰州交通大学测绘与地理信息学院;;地理国情监测技术应用国家地方联合工程研究中心;;中国科学院地理科学与资源研究所, ;;地理国情监测技术应用国家地方联合工程研究中心;;, 兰州;;兰州;;, ;;;;北京 730070;;730070;;100101.; 唐相龙, 兰州交通大学建筑与城市规划学院, 兰州, 甘肃 730070, 中国.; 孙东琪, 中国科学院地理科学与资源研究所, 北京 100101, 中国.
推荐引用方式 GB/T 7714	孙钦珂,周亮,唐相龙,等. 干旱区绿洲城镇扩张对耕地空间影响及预测--以河西走廊区域为例[J]. 中国科学院地理科学与资源研究所,2021,36(4):1008-1020.
APA	孙钦珂,周亮,唐相龙,孙东琪,&党雪薇.(2021).干旱区绿洲城镇扩张对耕地空间影响及预测--以河西走廊区域为例.自然资源学报,36(4),1008-1020.
MLA	孙钦珂,et al."干旱区绿洲城镇扩张对耕地空间影响及预测--以河西走廊区域为例".自然资源学报 36.4(2021):1008-1020.