复层落叶松人工混交林的抚育间伐技术  

作　　者：王玉伟 

机构地区：[1]辽宁省抚顺市新宾满族自治县大东沟林场,辽宁抚顺113208

出　　处：《智慧农业导刊》2021年第13期32-34,共3页JOURNAL OF SMART AGRICULTURE

摘　　要：落叶松具有生长快、材质好、经济价值高、适应能力强等一系列优势,是人工造林的优良树种。对于复层落叶松人工混交林,利用抚育间伐技术调节林分结构,有助于维护森林生态系统稳定,进而实现人工林的可持续发展。文章选择某林场作为试验地,探究了不同强度间伐对落叶松保留木的影响,以及不同间伐类型对人工混交林幼树和林木枯损量的影响。研究结果表明,进行抚育间伐以后,落叶松保留木的胸径和幼树树高均有明显增加,而林分枯损率则显著降低。此外,I型间伐方式对促进落叶松生长和降低林木枯损量效果更好,而II型间伐方式对促进人工更新幼树生长的效果更好,在实际的营林管理中应结合具体情况科学选择抚育间伐技术。Larix olgensis is an excellent tree species for artificial afforestation because of its fast growth,good quality,high economic value,strong adaptability and so on.For the artificial mixed forest of Larix olgensis,the use of tending and thinning technology to adjust the stand structure is helpful to maintain the stability of the forest ecosystem and realize the sustainable development of the plantation.In this paper,a forest farm was selected as the experimental site to explore the effects of different intensity thinning on Larix olgensis reserved trees and the effects of different thinning types on the loss of young trees and trees in artificial mixed forest.The results showed that after tending and thinning,the DBH and height of young trees increased significantly,while the loss rate of stand decreased significantly.In addition,type I thinning has a better effect on promoting Larix olgensis growth and reducing forest loss,while type II thinning has a better effect on promoting the growth of artificial regeneration young trees.In the actual forest management,tending thinning technologies should be scientifically selected according to the specific conditions.

关 键 词：落叶松 人工混交林 抚育间伐技术 林木枯损量 

分 类 号：S72[农业科学—林木遗传育种]