globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0132395
论文题名:
Simulation of Runoff Changes Caused by Cropland to Forest Conversion in the Upper Yangtze River Region, SW China
作者: Pengtao Yu; Yanhui Wang; Neil Coles; Wei Xiong; Lihong Xu
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2015
发表日期: 2015-7-20
卷: 10, 期:7
语种: 英语
英文关键词: Rain ; Watersheds ; Forests ; Agricultural soil science ; China ; Land use ; Flooding ; Pines
英文摘要: The "Grain for Green Project" is a country-wide ecological program to converse marginal cropland to forest, which has been implemented in China since 2002. To quantify influence of this significant vegetation change, Guansihe Hydrological (GSH) Model, a validated physically-based distributed hydrological model, was applied to simulate runoff responses to land use change in the Guansihe watershed that is located in the upper reaches of the Yangtze River basin in Southwestern China with an area of only 21.1 km2. Runoff responses to two single rainfall events, 90 mm and 206 mm respectively, were simulated for 16 scenarios of cropland to forest conversion. The model simulations indicated that the total runoff generated after conversion to forest was strongly dependent on whether the land was initially used for dry croplands without standing water in fields or constructed (or walled) paddy fields. The simulated total runoff generated from the two rainfall events displayed limited variation for the conversion of dry croplands to forest, while it strongly decreased after paddy fields were converted to forest. The effect of paddy terraces on runoff generation was dependent on the rainfall characteristics and antecedent moisture (or saturation) conditions in the fields. The reduction in simulated runoff generated from intense rainfall events suggested that afforestation and terracing might be effective in managing runoff and had the potential to mitigate flooding in southwestern China.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0132395&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/20538
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wan-Shou-Shan, Beijing, 100091, P. R. China;Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wan-Shou-Shan, Beijing, 100091, P. R. China;Centre for Excellence in Ecohydrology, School for Environmental Systems Engineering, University of Western Australia, 35 Stirling Highway, Crawley WA 6009, Perth, Australia;Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wan-Shou-Shan, Beijing, 100091, P. R. China;Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wan-Shou-Shan, Beijing, 100091, P. R. China

Recommended Citation:
Pengtao Yu,Yanhui Wang,Neil Coles,et al. Simulation of Runoff Changes Caused by Cropland to Forest Conversion in the Upper Yangtze River Region, SW China[J]. PLOS ONE,2015-01-01,10(7)
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