Spatiotemporal Dynamics and Drivers of Farmland Changes in Panxi Mountainous Region, China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山区发展研究中心

	Spatiotemporal Dynamics and Drivers of Farmland Changes in Panxi Mountainous Region, China
	Peng, Li1 ; Chen, Tiantian1,2 ; Liu, Shaoquan1
刊名	SUSTAINABILITY
	2016-11-01
卷号	8 期号:11 页码:doi:10.3390/su8111209
关键词	land cover changes vertical differentiation driving forces returning farmland to forest Panxi region
ISSN号	2071-1050
通讯作者	彭立
英文摘要	Due to the multiple impacts of landform effects, spatial heterogeneity and land use policies, farmland dynamics in mountainous areas are complicated. This study investigated farmland dynamics based on land use data from a typical mountainous area, Panxi, in China for 1990, 2000 and 2010, discussed the relationship between altitude, slope and farmland changes and presented an analysis of the driving forces of farmland change. Our findings are as follows: (1) from 1990 to 2010, the area of converted farmland was relatively small (313 km(2)), accounting for only 2.6% of the region's farmland. Farmland was mainly converted to forest and grassland as a result of the Returning Farmland to Forest Program; (2) The spatial distribution of land use types differed significantly. The presence of water bodies influenced farmland and built-up land, while forest and grassland showed "landform-oriented" characteristics. Built-up land was especially variable in distribution, indicating that it was more vulnerable to human activities; (3) The vertical differentiation of farmland changes was obvious. At altitudes <2500 m, the data displayed a trend of conversion from forest to farmland, while at >2500 m, this trend reversed. Thus, 2500 m serves as an altitudinal boundary between farmland and forest in Panxi. The largest area of forest-farmland transfer occurred on slopes steeper than 15 degrees, not 25 degrees, as defined by China's policy of Returning Farmland to Forest; (4) The driving forces of farmland changes varied. Decreases in farmland were negatively correlated with proximity to rivers and roads. Increases in farmland were positively related to temperature and negatively related to both population density and altitude.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences ; Environmental Studies
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	LAND-USE CHANGE ; DRIVING FORCES ; LANDSCAPE CHANGE ; CULTIVATED LAND ; EUROPEAN-UNION ; COVER CHANGE ; BIODIVERSITY ; IMPACTS ; INTENSIFICATION ; PYRENEES
收录类别	SCI ; SSCI
语种	英语
WOS记录号	WOS:000389316200126
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/17698]
专题	成都山地灾害与环境研究所_山区发展研究中心
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Univ Chinese Acad Sci, Resources & Environm Dept, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Peng, Li,Chen, Tiantian,Liu, Shaoquan. Spatiotemporal Dynamics and Drivers of Farmland Changes in Panxi Mountainous Region, China[J]. SUSTAINABILITY,2016,8(11):doi:10.3390/su8111209.
APA	Peng, Li,Chen, Tiantian,&Liu, Shaoquan.(2016).Spatiotemporal Dynamics and Drivers of Farmland Changes in Panxi Mountainous Region, China.SUSTAINABILITY,8(11),doi:10.3390/su8111209.
MLA	Peng, Li,et al."Spatiotemporal Dynamics and Drivers of Farmland Changes in Panxi Mountainous Region, China".SUSTAINABILITY 8.11(2016):doi:10.3390/su8111209.