辽西地区油松人工纯林混交改造技术研究综述

A research review of mixed forest construction technology of Chinese pine artificial pure forest in western Liaoning province

为了促进辽西地区近成熟、成熟油松公益林混交改造技术发展,解决油松公益林现存的诸多问题,保障其未来的可持续发展,从混交改造的方式、树种、效果评价等3个方面对已有文献资料中油松人工纯林、中幼龄林期的混交改造技术相关研究内容进行了总结与探讨。在现有文献资料中,混交改造方式的研究缺少对油松带状或块状砍伐形状、面积大小的界定,未能依据具体的立地类型及微环境差异确定适宜的混交树种及详细的配置方法;混交改造树种的研究缺乏针对现地适生情况及后续生长表现方面的长期、系统的监测,应该把实验室抗逆生理生化指标的测定与外业样地试栽试验紧密结合起来,不断扩大油松混交树种的选择范围;在混交改造效果评价方面,应注重种间关系的研究,提出不同林龄阶段混交林抚育调整技术,建立系统、全面、客观的评价体系,对现有的改造模式进行科学、合理的评价,并进一步指导生产实践。

In order to provide reference for mixed forest transformation of nearly-mature and mature Chinese pine artificial pure forest, solve its existing problems and to promote tainable development, mixed forest construction technology of middle-young aged Chinese pine artificial pure forest in the available research literatures is summarized and discussed in this paper from 3 aspects： mixed models, mixed tree species and mixed forest effectiveness e-valuation. In the existing literatures, the Chinese pine cutting area and cutting shexplicit. Site type and micro environmental difference have not been consideredlection of mixed tree species. The mixed tree species research is short of longtime and sys-tematic monitoring of adaptability and growth performance. Experimental determination of physiological and biochemical indices should be combined with tentatively filed planting to broaden the options of mixed tree species. Interspecies relation is an important part of effec-tiveness evaluation research to put forward the technology of mixed forest stand tending and adjusting. Systematic, comprehensive and objective evaluation system is needed in the re-search and production practice of Chinese pine mixed forest.