Ecological and hydrological response of farmlands abandoned for different lengths of time: Evidence from the loess hill slope of china

CORC > 地理科学与资源研究所 > 中国科学院地理科学与资源研究所 > 历年回溯文献

	Ecological and hydrological response of farmlands abandoned for different lengths of time: Evidence from the loess hill slope of china
	Hou Jian ; Fu Bojie ; Liu Yu ; Lu Nan ; Gao Guangyao ; Zhou Ji
	2014
关键词	Farms Catchments Ecology Erosion Land use Nutrients Runoff Sediments Soils Vegetation
英文摘要	As a widely distributed land use type, abandoned farmland has become a research focus due to its complex ecological and hydrological responses. Most recent studies have focussed on the interactions between the ecological and hydrological responses in degradation processes, whilst little research has focussed on the recovery of the ecosystem. Moreover, some in-depth analyses are required to further elucidate their interactive on abandoned farmland. In addition, although runoff generation and soil erosion on abandoned farmland have been investigated, few reports have investigated nutrient transport in runoff and eroded sediments. This study investigated the vegetation and soil composition and carried out a 2. year monitoring experiment to monitor the runoff and soil erosion of farmlands abandoned for different lengths of time (4, 12, 22 and 50. years) on a mountain slope located in the Loess Plateau of China. It is found that after farmland abandonment, vegetation holds a positive succession. A two-phase mosaic structure forms, and the moss coverage increases on the inter-vascular plant. From 4 to 50. years in abandoned farmland, the average accumulated runoff increases from 9698.2. ml to 38,605.3. ml in a 5 2. m runoff plot. Additionally, the average accumulated sediment loss decreases from 2019.5. g to 387.7. g in a same plot. Furthermore, the wastage of soil organic matter and most nutrients also decreases on slopes after farmland abandonment because the nutrients are mainly lost in the eroded sediments. 2013 Elsevier B.V.
出处	Global and Planetary Change
卷	113 页:59-67
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/31271]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Hou Jian,Fu Bojie,Liu Yu,et al. Ecological and hydrological response of farmlands abandoned for different lengths of time: Evidence from the loess hill slope of china. 2014.