1) Larix olgensis plantation
长白落叶松人工林
1.
Effects of thinning on microsites and natural regeneration in a Larix olgensis plantation in mountainous regions of eastern Liaoning Province, China;
间伐对辽东山区长白落叶松人工林生境和更新的影响(英文)
2.
It is to determine the best soi I conditions of Larix olgensis plantation by researching the relationship of the soil environment conditions to plantation productivity.
通过研究长白落叶松分布区内的土壤环境条件与林木生产力之间的关系,确定培育长白落叶松人工林的最适宜土壤条件,这些指标既是营造长白落叶松人工林立地选择的标准,又是检验现有林立地生产力下降的依据。
2) korean larch
长白山落叶松(林)
3) Larix olgensis forest
长白落叶松林
1.
Based on the observation data in the Larix olgensis forest in Bingla mountain,the authors calculated all the items of energy balance and the evapotranspiration utilizing the BREB,researched characteristics of energy balance and difference of evapotranspiration in growth season and non-growth season.
利用辽宁冰砬山长白落叶松林内小气候梯度观测塔观测数据,采用波文比-能量平衡法(BREB),计算出冰砬山长白落叶松林的热量平衡各分量和蒸散量,研究生长季和非生长季能量平衡特征和蒸散量的差异。
4) Larch plantations
落叶松人工林
1.
The research was made that the change of component of soil humic substances in larch plantations and its effects on the soil acidity at the different development stages (young stand, half_mature stand, near mature stand, mature stand and young stand in the second rotation).
对落叶松人工纯林不同发育阶段幼龄林、中龄林、近熟林、成熟林及二代幼龄林土壤腐殖物质组分变化及其对酸度的影响进行研究,以次生林和一代幼龄林为对照,比较不同发育阶段落叶松人工林与天然次生林、一代幼龄林与二代幼龄林土壤有机质含量、腐殖物质组分特征的差异。
2.
After 50 years forestation, the larch plantations have already became near-mature forest or mature forest and been the important commercial forest base now.
落叶松是我国北方林区主要的造林速生树种之一,经过50多年的森林营建,落叶松人工林大部分已进入近熟林、成熟林阶段,已成为我国重要的用材林基地。
5) larch plantation
落叶松人工林
1.
Effect of major environment of canopy openness produced by thinning in larch plantation;
落叶松人工林开阔度的主要环境效应
2.
The effect of Zeiraphera lariciana and Zeiraphera grisecana on growth of larch plantations;
两种线小卷蛾对落叶松人工林生长的影响
3.
Soil acidity change of Larch plantations and relation between change and inorganic phosphorus types;
落叶松人工林土壤酸度变化与无机磷形态的关系
6) Larix olgensis plantation
落叶松人工林
1.
The soil degradationin in Larix olgensis plantations, to a certain extent, has been found.
落叶松人工林土壤质量存在着不同程度的下降问题。
2.
Models for simulating locational distribution of total branches, both along and around the bole, and for estimating crown profile of primary branches within live crown were developed in a 26-year-old Larix olgensis plantation based on the circular branch analysis technique.
本文以26年生长白落叶松人工林为研究对象,利用团状枝解析的方法,研究了主要枝条在树冠内的分布(包括垂直分布和水平分布),构建了树冠构筑型模型,及主要枝条基径和枝长的生长特征和生长动态。
3.
This study was conducted based on the common characteristics of low mixture degree and uniform distribution of Larix olgensis plantation in a 15-year-old plantation.
(2) 15%左右为15年生落叶松人工林最优的间伐强度,空间优化达到最佳,优化后林分竞争态势减小,生长空间利用程度增大,林分空间结构得到改善,模拟20年、25年生林分空间结构优化经营,最优的间伐强度为15%、10%左右。
补充资料:长沙开元寺昔与故长林许侍御题松竹联句
【诗文】:
墙阴数行字,怀旧惨伤情。薜荔侵年月,莓苔压姓名。
逝川前后水,浮世短长生。独立秋风暮,凝颦隔郢城。
【注释】:
【出处】:
全唐诗:卷569-39
墙阴数行字,怀旧惨伤情。薜荔侵年月,莓苔压姓名。
逝川前后水,浮世短长生。独立秋风暮,凝颦隔郢城。
【注释】:
【出处】:
全唐诗:卷569-39
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条