辽东山区天然次生林保护与可持续经营研究

Conservation and sustainable management of original secondary forests in mountainous areas of eastern Liaoning

根据辽东山区天然次生林面积锐减和质量下降、森林生态功能和防护效能明显衰减、区域性生态环境严重恶化等问题,对辽东山区天然次生林进行经营类型划分,划分出更新采伐型、抚育间伐型、林分改造型、高效经营型、封育型和封禁型等6种经营类型。对每种经营类型又提出了相应的经营措施和指标体系,并就辽东山区天然次生林资源现状及特点,提出辽东山区天然次生林保护与可持续经营的关键技术,其中包括天然次生林的监测和评价、生物多样性保护与利用、生长发育规律、混交林培育理论、恢复与再建和结构调整等技术。

Based on such issues as sharply decreasing area and degradation of quality of original secondary forests in mountainous areas of eastern Liaoning, remarkable deterioration of ecological functions and protective benefits and aggravating of regional eco-environment, 6 kinds of management types, namely, regeneration cutting, thinning, transformation, high efficient management, closure and banning of forest areas were classified regarding original secondary forests in mountainous areas of eastern Liaoning. Corresponding management measures and indicator's systems were put forth for each management type, and key conservation and sustainable management techniques, including monitoring and evaluation, biodiversity conservation and utilization, growth and development rhythm, mixed forest cultivation theory, rehabilitation and structural adjustment were put forward according to status and characteristics of resources of original secondary forests in mountainous areas of eastern Liaoning 