Addressing soil protection concerns in forest ecosystem management under climate change  

作　　者：Ana Raquel Rodrigues Brigite Botequim Catarina Tavares Patrícia Pécurto JoséGBorges 

机构地区：[1]Forest Research Centre,School of Agriculture,Lisbon University,Tapada da Ajuda,1349-017,Lisbon,Portugal

出　　处：《Forest Ecosystems》2020年第3期432-442,共11页森林生态系统（英文版）

基　　金：ALTERFOR project,“Alternative models and robust decision-making for future forest management”,H2020-ISIB-2015-2/grant agreement No. 676754,funded by European Union Seventh Framework Programme;SUFORUN project,‘Models and decision SUpport tools for integrated FOrest policy development under global change and associated Risk and UNcertainty’ funded by the European Union’s H2020 research and innovation program under the Marie Sklodowska-Curie Grant Agreement number 691149;BIOECOSYS project,“Forest ecosystem management decision-making methods an integrated bioeconomic approach to sustainability”(LISBOA-01-0145-FEDER-030391,PTDC/ASP-SIL/30391/2017);MedFOR,Master Programme on Mediterranean Forestry and Natural Resources Management (Erasmus+Erasmus Mundus Joint Master Degrees,Project 20171917);Centro de Estudos Florestais,research unit funded by Fundacao para a Ciência e a Tecnologia I.P.(FCT),Portugal within UIDB/00239/2020。

摘　　要：Background: Climate change may strongly influence soil erosion risk, namely through variations in the precipitation pattern. Forests may contribute to mitigate the impacts of climate change on soil erosion and forest managers are thus challenged by the need to define strategies that may protect the soil while addressing the demand for other ecosystem services. Our emphasis is on the development of an approach to assess the impact of silvicultural practices and forest management models on soil erosion risks under climate change. Specifically, we consider the annual variation of the cover-management factor(C) in the Revised Universal Soil Loss Equation over a range of alternative forest management models to estimate the corresponding annual soil losses, under both current and changing climate conditions. We report and discuss results of an application of this approach to a forest area in Northwestern Portugal where erosion control is the most relevant water-related ecosystem service.Results: Local climate change scenarios will contribute to water erosion processes, mostly by rainfall erosivity increase.Different forest management models provide varying levels of soil protection by trees, resulting in distinct soil loss potential.Conclusions: Results confirm the suitability of the proposed approach to address soil erosion concerns in forest management planning. This approach may help foresters assess management models and the corresponding silvicultural practices according to the water-related services they provide.

关 键 词：C-FACTOR EROSIVITY Ecosystem services Forest management Revised universal soil loss equation(RUSLE) 

分 类 号：S714.7[农业科学—林学]