文献类型：期刊文献

英文题名：The effect of site conditions on flow after forestation in a dryland region of China

作者：Yu, Pengtao[1] Wang, Yanhui[1] Du, Apeng[1,2] Guan, Wei[1,3] Feger, Karl-Heinz[4] Schwaerzel, Kai[4] Bonell, Mike[5,6] Xiong, Wei[1] Pan, Shuai[1]

通信作者：Wang, YH[1]

机构：[1]Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Beijing 100091, Peoples R China;[2]China Eucalypt Res Ctr, Zhanjian 524022, Peoples R China;[3]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China;[4]Tech Univ Dresden, Dresden Water Ctr, Inst Soil Sci & Site Ecol, D-01735 Tharandt, Germany;[5]Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England;[6]Univ Dundee, UNESCO Ctr, Dundee DD1 4HN, Scotland

年份：2013

卷号：178

起止页码：66-74

外文期刊名：AGRICULTURAL AND FOREST METEOROLOGY

收录：;Scopus(收录号：2-s2.0-84880326390);WOS:【SCI-EXPANDED(收录号:WOS:000322349800008)】；

基金：We are grateful for the financial support of the National Natural Science Foundation of China (NSFC) and the State Forestry Administration of China (SFA) with the projects (nos. 41071023, 200904056, and 200904005). Furthermore, we thank the German Federal Ministry of Education and Research (BMBF, CHN 01/652). We would like to give our thanks to Prof. Wenfa Xiao for his constructive suggestions on paper modification.

语种：英文

外文关键词：Water budget; Aspect; Slope; Soil thickness; BROOK90 Model; Sensitivity analysis

摘要：Although forestation has been encouraged worldwide for the benefit of forest ecosystem services, it can lead to a reduction in runoff. As site conditions also strongly contribute to this runoff reduction, site selection has been suggested in order to mitigate this negative effect of forestation. Up to now it is not clear, however, which catchment parameters play key roles in the water budget and runoff responses to forestation. In this study, two plots within an experimental basin in the Liupan Mountains, NW China, were chosen, and the eco-hydrological model BROOK90 (Version 3.25) was used to quantify the effects of slope (gradient, aspect) and soil (thickness) parameters on water flow after forestation. The simulation showed that the annual flow in a larch plantation was strongly affected by soil thickness and lightly affected by aspect and gradient. When the soil thickness increased from 30 cm to 70 cm, the annual flow in the larch plantation rapidly declined from 91 mm/yr to 56 mm/yr. When the soil depth was greater than 70 cm, however, the annual runoff was no longer sensitive to soil thickness. With respect to a forestation strategy, this means that trees preferentially should be planted on sites with thinner soil so as to lessen the impact of runoff reduction after forestation and, thus, alleviate the forest-water conflicts in dryland regions. The trade-off between a possible reduction in tree-growth on thinner soil on the one hand and an increase in runoff on the other, however, remains an open question for future interdisciplinary research. (c) 2013 Elsevier B.V. All rights reserved.