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Assessing hydrological and provisioning ecosystem services in a case study in Western Central Brazil

Ecological Processes 2014年第1期3卷 248-262页

作者： lars koschke Carsten Lorz Christine Fürst Tobias Lehmann Franz Makeschin Department of Soil Science and Site Ecology Dresden University of TechnologyPienner Str.1901737 TharandtGermany Faculty for Woods and Forestry Forest PedologyGeology and Site EcologyHochschuleWeihenstephan-TriesdorfUniversity of Applied SciencesFreisingGermany Center for Development Research Department of Ecology and Natural Resources ManagementUniversity of BonnWalter-Flex-Str.353113 BonnGermany

Introduction:Current land use in the Federal District,Western Central Brazil,causes problems related to the water supply which are linked to the regulation of ecosystem services(ES).In scope of an Integrated Water Resources Management concept,we further developed the web-based planning support tool GISCAME for the Pipiripau river basin case ***:We introduced analyses on ecosystem potentials in the raster-based tool to assess,in a spatially explicit manner,the scenario impact on water purification,sediment retention,water retention,and provision of food and fodder in order to identify potential pathways for conserving water *** demonstrate the method,we assess ES depending on a number of land use/land cover change(LULCC)***:We found that a considerable increase of water purification and sediment retention is difficult to achieve with realistic small scale LULCC,mainly because in areas with a low potential to provide hydrological ES and thus with a high demand for sustainable land use,such as native Savanna(Cerrado)and natural forests(Mata),favorable land uses were often already *** observed synergies in the response of regulating hydrological ES to LULCC but at the same time also trade-offs with provision of food and ***:Our findings suggest that further degradation and loss of Cerrado and Mata must be avoided and their restoration should be promoted in order to safeguard water *** suggest that restoration measures should be focused on arable land located at steep slopes near surface waters to effectively increase hydrological ES through the marginal reduction of provision services.

关键词： services retention provision

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