Impacts of forest restoration on water yield: A systematic review.

摘要: Background Enhancing water provision services is a common target in forest restoration projects worldwide due to growing concerns over freshwater scarcity. However, whether or not cover expansion can improve still unclear and highly disputed. Purpose The goal of this review provide balanced impartial assessment the impacts on yields as informed by scientific literature. Potential sources bias results papers published are also examined. Data English, Spanish Portuguese peer-review articles Agricola, CAB Abstracts, ISI Web Science, JSTOR, Google Scholar, SciELO. Databases were searched through 2015. Search terms Intervention included restoration, regeneration/regrowth, second-growth, forestation/afforestation, forestry. Target yield/quantity, streamflow, discharge, channel runoff, annual flow. Study selection eligibility criteria Articles pre-selected based key words title, abstract text. Eligible addressed relevant interventions targets quantitative information. Results Most studies reported decreases following intervention, while other hydrological benefits have been observed. relatively few focused specifically especially with native species, and/or done at large spatial temporal scales. Information limited for humid tropics subtropics. Conclusions implications findings While most decrease yields, meta-analyses from sub-set suggest potential influence scales outcomes projects. Given many improving our understanding when why lead recovery crucial help positive prevent unintended consequences. Our study identifies critical types associated measurements needed.