国家科技支撑项目"村镇景观建设中的生物多样性保护技术"(2012BAJ24B0504); 林业公益性行业科研专项(201104055); 中央级公益性科研院所基金重点项目(RISF2013001)
[目的] 开展太湖湖滨防护林建设对区域生态改善效应研究,为今后太湖防护林建设及生态效益改善提供技术支持. [方法] 选择太湖宜兴地区太湖湖滨防护林,分别探讨防护林地和农田中土壤状况、植物多样性变化和地表径流特征,分析不同林地土壤性质差异及相应的生物多样性变化. [结果] 通过湖滨防护林的建设能有效改善土壤渗透性,增强土壤持水能力,减少地表径流,增加植物物种多样性. [结论] 湖滨防护林建设能改善土壤状况,有效改善区域环境,有助于保护生物多样性,是太湖环境综合治理中切实有效的生态措施.
[Objective] By studying the ecological effects of shelter forest construction of Taihu Lake levee, we aimed to provide technical support for future shelter belts construction and environmental improvement in this region. [Methods] The shelter forested lands and farmlands at Yixing City were chosen as the test plots. Field survey was conducted and soil samples were collected. Soil conditions, plant diversity and surface runoff was investigated to analyze the heterogeneity of soil properties and biodiversity. [Results] The results showed that, with the construction of the ecological shelter forests, soil permeability was improved, surface runoff was reduced and plant species diversity was enhanced. [Conclusion] The construction of ecological shelter forests can improve the regional environment, enhance soil status, and increase biodiversity in Taihu basin, and is the effective ecological measure for the environment comprehensive treatment in Taihu Lakebasin.