苍梧珠江生态经济型防护林体系布局与结构配置研究

Study on Systematic Arrangement and Structure of Eco-economic Protection Forest of Pearl River,Cangwu County

以生态经济学理论为基础,遵循科学性和实用性的原则,并以自然环境差异、土地利用类型、水土流失特征、生态经济功能差异和主要功能为依据,在充分调查研究的基础上,建立苍梧县生态经济型防护林体系3级的分类系统即体系——类型——林种,并将其分为3种类型、19个林种,确定各防护林类型和林种的配置范围和功能;提出具有珠江流域南亚热带季风气候区生态经济特色的防护林骨干布局、片区布局、网络布局的技术方案,为苍梧县珠江生态经济型防护林体系空间结构建设提供了科学依据;提出各区典型林种配置模式19个以及各模式的林种配置范围、防护功能、适宜树种和优良林分模式等,为生态经济型防护林体系结构配置提供具体的操作技术。

In accordance with natural environment difference,soil utilization type,soil and water losses characteristics,eco-economic function difference and based on eco-economic theory,a three-layer system was established for eco-economic protection forest system of Cangwu County,i.e.System—Type—Species,which was further categorized into 3 types and 19 species.This paper identified scope and function for each protection forest type and forest species,proposed a technical scheme of skeleton distribution,regional distribution and network distribution with the characteristics of south subtropical monsoon area in the Pearl River.The paper also proposed 19 typical species arrangement models and arrangement scope,functions,suitable species and superior forest stand models for each model,which provided detailed operation techniques for the arrangement of eco-economic protection forest system.