同时提出了在类似条件下通过人工促进天然更新培育阔叶林和针阔混交林的设想。
Thispaper proposed the idea that broad - leafed forest and mixed forest could be bred by artificalfacilitation on the same condition.
结果表明,落叶松人工林的林冠截留率最大,表现出比天然白桦林、天然黑桦林和天然阔叶混交林具有较强的蓄水和拦截功能。
Compared with natural secondary forests of birch, Dahurian birch, and broadleaf tree mixed one, larch plantation showed higher sluice function due to its higher canopy interception percentage.
林下植被生物量随林龄增长而降低,所有年龄阶段红松人工林林下植被生物量都低于红松混交林和天然次生林。
The undergrowth vegetation biomass in Korean pine plantations declined over years and was less than that of the mixed forest of Korean pine and secondary natural forest at all age stages.
表明杉木拟赤杨混交林具有良好的培肥土壤功能,对杉木人工林的地力维持和提高有重要意义。
It is concluded that the mixed stand can be able to be self-rich in soil fertility, which benefit the maintenance and improvement of site fertility under Chinese fir plantation.
说明红松混交林土壤质量最好,58年生红松人工林土壤质量最差。
Soil quality of mixed forest of Korean pine is the best, and that of 58 year-old Korean pine plantation is the worst.
针对目前人工纯林地力衰退的问题,提出了混交林可作为防止地力衰退的途径,并对混交林应用上的有关问题作了探讨。
Mixed plantation can be used to prevent soil productivity from deterioration in the repeated pure plantations. Some problems of the application of mixed plantation are also discussed in this paper.
桤柏混交林是紫色土的主要人工混交类型,在长江防护林建设中有重要作用。
Mixed alder and cypress forest is a main mixed type on purple soil, playing an important role in the construction of protection forests in the Changjiang River basin.
人工林区的刺槐和油松混交林群落的物种丰富度高于其纯林群落。
The difference between Locust community and Chinese pinus community were decided by characteristics and habitats of communities.
人工林区的刺槐和油松混交林群落的物种丰富度高于其纯林群落。
The difference between Locust community and Chinese pinus community were decided by characteristics and habitats of communities.
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