长江中游护岸护堤林带建设初探

本文在分析了长江中游自然资源基本特征的基础上 ,根据护岸护堤林体系建设中的主要防护功能和目标 ,将护岸护堤林林种体系划为 4个三级林种和 1 2个四级林种。根据护岸护堤林的适宜性树种和灌草的选择指标 ,采用模糊相似选择法 ,应用微机进行统计分析 ,选出2 8种乔木、1 7种灌木和 6种草本。通过对护岸护堤林结构配置模式的综合效益和功能的评价 ,提出建设护岸护堤林带应采用多树种、多带型和林农复合型等 ,为长江中游护岸护堤林带建设提供科学依据。

Preminerary Study on Bank Protection Forest Belt Construction in Middle reaches of Yangtze River

In this paper, the bank protection forest system can be divided into four 3-level forest strains and Twelve 4-level forest strains on the basis of analysing the basic characteristics of natural resources in middle reaches of Yangtze River and main function and aim of bank protection construction. Adopt a method of dim resemble selection and statistics with computer, 28-varieties arbor,17-varieties bush and 6-varieties herb had been sleeted according to the suitable trees species for bank protection and selecting target of bushes and herbs. It should employ more strains. More belt types and agro-forestry through study on comprehensive benefits and function of bank protection forest belt construction, which provides scientific basis for bank protection belt construction in middle reaches of Yangtze River.