加强中幼龄林抚育管理已是我国林业的紧迫任务。
It is emergent task to strengthen the management and tending of cultures in China forests.
因地制宜开展中幼龄林抚育、森林改造培育,提高森林质量。
Young forest management will be managed according to local conditions, with an emphasis on forest cultivation to improve forest quality.
林分直径分布,幼龄林呈倒“J”型,壮龄林近似于正态分布;
The stand diameter distribution of juvenile stand appears an inversed "J"form, and that of the half mature forest approximately a normal distribution.
不同林龄的栓皮栎林生殖物候和生殖能力有差异,幼龄林低,老龄林高;
There are differences in phonology and reproductive ability between forests at different age.
但是在幼龄林资产评估中该方法还存在诸多局限性,影响了幼龄林资产评估的准确性。
In asset evaluation on young forest growth, however, this method is limited in some aspects, which affects the accuracy in evaluating the assets of young forest growth.
对福建马尾松幼龄林、中龄林和成熟林生态系统中各组分的含碳率和碳贮量进行了比较研究。
The carbon content and carbon storage of Pinus massoniana Lamb at different growing stages were measured.
对等密度107杨幼龄林进行一次性施肥灌溉措施对比试验,结果表明,一次性水肥措施对其幼林未郁闭前各龄期胸径生长量和郁闭度均有促进作用。
Comparative experiments was conducted on the effect of one-time irrigation and fertilization on the DBH and crown density of young 107 poplar plantations of even planting density.
对等密度107杨幼龄林进行一次性施肥灌溉措施对比试验,结果表明,一次性水肥措施对其幼林未郁闭前各龄期胸径生长量和郁闭度均有促进作用。
Comparative experiments was conducted on the effect of one-time irrigation and fertilization on the DBH and crown density of young 107 poplar plantations of even planting density.
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