长江滩地植被缓冲带类型及功能与生态重建

Type,Function and Ecological Reconstruction of Vegetated Buffer Strips in Yangtze River Beach

长江滩地植被缓冲带包括原生植被、人工植被两大类,其中人工植被缓冲带又包括森林、林农复合系统和农田缓冲带;长江滩地植被缓冲带具有保水固土,过滤径流,提供生物栖息地,防浪护堤,改善长江水文状况和美化滩地环境,丰富人文景观等现实与潜在功能;分析提出了生态重建的总体目标、原则(可持续性,自我恢复,分类重建,调整反馈)与步骤(信息系统建立,系统诊断与评价,规划设计与生态重建,长江保护与流域可持续发展)。为滩地资源的合理利用以及长江流域的科学保护提供科学依据。

The BVBZ were primarily sorted into native vegetated buffer and artificial vegetation buffer,which mainly included forestry buffer,agroforestry buffer and cropland buffer.And its factual and potential function aiming to soil and water conservation,runoff filter,habitat use,wave absorption,improve the hydrological situation,beautify environment and humanity landscape enrichment were also demonstrated.Moreover,principles（sustainable,self-recovery,classification and reconstruction,and feedback control） and process（establishing information system,judgment and evaluation for eco-system,design and planning for eco-restoration,protection on water resource for sustainable development）for BVBZ eco-restoration had been suggested,which should obey according to inner reasons and the influencing elements of BVBZ eco-res-toration.