Impacts of forestation on the annual and seasonal water balance of a tropical catchment under climate change

作     者：Hero Marhaento Martijn J.Booij Noorhadi Rahardjo Naveed Ahmed Hero Marhaento;Martijn J.Booij;Noorhadi Rahardjo;Naveed Ahmed

作者机构：Faculty of ForestryUniversitas Gadjah MadaYogyakarta 55281Indonesia Water Engineering and Management GroupFaculty of Engineering TechnologyUniversity of TwenteP.O.Box 2177500 AE Enschedethe Netherlands Faculty of GeographyUniversitas Gadjah MadaYogyakarta 55281Indonesia Key Laboratory of Mountain Surface Process and Ecological RegulationsInstitute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China 

出 版 物：《Forest Ecosystems》 (森林生态系统（英文版）)

年 卷 期：2021年第8卷第4期

页      面：856-871页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 

基　　金：funded by the publication grant scheme from the Publishers and Publications Board(BPP) Universitas Gadjah Mada Indonesia 

主　　题：Forestation Land use change Climate change SWAT model Water balance Bogowonto catchment 

摘      要：Background:This study aims to assess the effects of a forestation program and climate change on the annual and seasonal water balance of the Bogowonto catchment(597 km^(2))in Java,*** catchment study is rare example in Indonesia where forestation has been applied at the catchment ***,since the forestation program has been initiated,evaluations of the program only focus on the planting area targets,while the environmental success e.g.,impacts on the hydrological processes have never been *** study used a calibrated Soil and Water Assessment Tool(SWAT)model to diagnose the isolated and combined effects of forestation and climate change on five water balance components,namely streamflow(Q),evapotranspiration(ET),surface runoff(Q_(s)),lateral flow(Q_(l))and base flow(Q_(b)).Results:The results show that from 2006 to 2019,forest cover has increased from 2.7% to 12.8% of the total area,while in the same period there was an increase in the mean annual and seasonal temperature,rainfall,and *** of SWAT simulations show that changes in the mean annual and seasonal water balance under the forestation only scenario were relatively minor,while changes were more pronounced under the climate change only *** on the combined impacts scenario,it was observed that the effects of a larger forest area on the water balance were smaller than the effects of climate ***:Although we found that forestation program has minor impacts compared to that of climate change on the hydrological processes in the Bogowonto catchment,seasonally,forestation activity has decreased the streamflow and surface runoff during the wet season which may reduce the risk of moderate ***,much attention should be paid to the way how forestation may result in severe drought events during the dry ***,we urge the importance of accounting for the positive and negative effects in future forestation programs.