Groundwater recharge rates and surface runoff response to land use and land cover changes in semi-arid environments

作     者：S.O.Owuor K.Butterbach-Bahl A.C.Guzha M.C.Rufino D.E.Pelster E.Diaz-Pines L.Breuer 

作者机构：Institute of Meteorology and Climate ResearchAtmospheric Environmental Research(IMK-IFU)Karlsruhe Institute of Technology(KIT)Kreuzeckbahnstr.1982467 Garmisch-PartenkirchenGermany International Livestock Research Institute(ILRI)Old Naivasha Rd.P.O.Box 30709-00100NairobiKenya United States Forest Servicec/o CIFORWorld Agroforestry CentreUnited Nations Avenue GigiriP.O.Box 30677-00100NairobiKenya Center for International Forestry Research(CIFOR)C/o World Agroforestry CentreUnited Nations Avenue GigiriP.O.Box 30677-00100NairobiKenya Institute for Landscape Ecology and Resources Management(ILR)Research Centre for BioSystemsLand Use and Nutrition(iFZ)Justus Liebig University GiessenHeinrich-Buff-Ring 2635392 GiessenGermany Centre for International Development and Environmental Research(ZEU)Justus Liebig University GiessenGiessenGermany 

出 版 物：《Ecological Processes》 (生态过程（英文）)

年 卷 期：2016年第5卷第1期

页      面：195-215页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0713[理学-生态学] 

基　　金：support by the Deutsche Forschungsgemeinschaft DFG(BR2238/23-1) 

主　　题：Groundwater recharge rate Infiltration Surface runoff Semi-arid Land use change Land cover change 

摘      要：The effects of land use and land cover(LULC)on groundwater recharge and surface runoff and how these are affected by LULC changes are of interest for sustainable water resources ***,there is limited quantitative evidence on how changes to LULC in semi-arid tropical and subtropical regions affect the subsurface components of the hydrologic cycle,particularly groundwater *** water resource management in these regions requires conclusive evidence and understanding of the effects of LULC changes on groundwater recharge and surface *** reviewed a total of 27 studies(2 modeling and 25 experimental),which reported on pre-and post land use change groundwater recharge or surface runoff magnitude,and thus allowed to quantify the response of groundwater recharge rates and runoff to *** between initial and subsequent LULC indicate that forests have lower groundwater recharge rates and runoff than the other investigated land uses in semi-arid tropical/subtropical *** of bare land induces a decrease in groundwater recharge from 42% of precipitation to between 6 and 12% depending on the final *** forests are cleared for rangelands,groundwater recharge increases by 7.8±12.6%,while conversion to cropland or grassland results in increases of 3.4±2.5 and 4.4±3.3%,*** of bare land to cropland results in surface runoff reductions of between 5.2 and 7.3%.The conversion of forest vegetation to managed LULC shows an increase in surface runoff from 1 to 14.1% depending on the final *** runoff was reduced from 2.5 to 1.1% when grassland is converted to forest *** there is general consistency in the results from the selected case studies,we conclude that there are few experimental studies that have been conducted in tropical and subtropical semi-arid regions,despite that many people rely heavily on groundwater for their ***,there is an urgent need to increase th