森林植被对农业生态环境的调控机理评述

The Mechanism of Forestry Adjusting and Controlling Agricultural Eco-environment:A Review

森林植被的不断减少使区域农业生态环境出现了持续恶化的趋势。森林植被通过对生态水文过程的调控、防止土壤侵蚀的发生及养分的流失来影响区域农业生态环境 ,并且在不同的农林景观格局的配置表现出不同的环境效应和尺度效应。我国在森林植被与生态环境研究方面取得了一些重要进展 ,但还存在着研究尺度偏小、综合研究较少及缺少结合林业工程技术要求的应用理论研究等不足。针对研究中存在的问题 。

The trend of agricultural eco-environment sustainable worsening occurred because of the forest's unceasing decrease.The forest affected regional agricultural eco-environment through adjusting and controlling eco-hydraulic processes,preventing soil erosion and nutrient loss.But there were different environment and scale effects for various landscape patterns of agriculture and forestry.Some key progresses were acquired about the research between forest and eco-environment,but some problems still exist such as the research scale on the low side,less comprehensive research and the lack of applied theory combining with forest engineering technology.The 4 key science problems and research route among the forest adjusting and controlling agricultural eco-environment were presented aiming at research lackages.