不同营林措施对杉木人工林地力维持的影响  

Influences of Different Silvicultural Measures on Soil Productivity Maintenance of Chinese Fir Plantations

作　　者：盛玉珍[1] 周庆 李诗娟[1] 安勇明 王丽[1] 

机构地区：[1]四川省林业科学研究院,四川成都610081 [2]阿坝州旅游经济研究所,四川阿坝州623000 [3]梓潼县大新乡林业站,四川梓潼622100

出　　处：《四川林业科技》2016年第3期100-102,共3页Journal of Sichuan Forestry Science and Technology

基　　金：四川省科技计划支撑项目"破坏山体退化土壤改良技术研究"(2015JY0175)

摘　　要：本实验从不同的采伐及抚育活动、不同的施肥处理等几方面来展开,对造成杉木人工林地力衰退的原因进行全面分析。结果表明:(1)3种不同的整地方式下,杉木生长量呈现全垦>带垦>穴垦的趋势,林地化学、物理各成分指标呈现出穴垦>带垦>全垦的趋势;(2)3种不同的施肥处理后,对杉木的生长有着极大的影响,不同肥料作用下杉木生长量大小顺序为配方肥>普通复合肥>对照处理;(3)不同轮伐期对杉木林分生物量影响显著,随轮伐期延长,林分各器官生物量呈不断积累趋势,其中以干的积累量最大,枝、叶积累量较少。利用杉木人工林生态系统中林木生长,养分平衡和立地维护的理论与相关技术,获得四川省杉木林地力衰退机理,提出针对性的杉木人工林地维持技术。In this paper, analysis was made of the soil degradation mechanisms reasons of the Chinese fir plantation from different factors, such as irrational cultivation system and cutting method of plantation, the relase of trees allelochemicals,and so on. The results showed that （ 1 ） under three different ways of pre- paring soil, the fir growth increment trends wwere as follows：full reclamation 〉 strip preparation 〉 hole preparation ,and physical and chemical indices in woodlands; （2） Different fertilization treatments had great efferts on the growth of stand. The order of the Chinese fir growth on use of different fertilization was as follows ： formula fertilizer 〉 common compound fertilizer 〉 control treatment ; （ 3 ） Biomass of organs in- creased in number with the prolonging of rotation, among which the accumulation in trunk was the most and fewer in branch leaves. Chinese fir plantation soil degradation mechanisms were found by utilizing the researches on the growth of Chinese fir plantation, nutrient balance and the basic theory and relative tech- nologies of soil productivity maintenance. At the same time, the targeted soil productivity maintenance technique was also put forward.

关 键 词：人工林 地力衰退 地力维持 

分 类 号：S791.27[农业科学—林木遗传育种]