河北省的塞罕坝曾经是一片沙漠，但现在它已经成为中国最大的人工林。
Saihanba in Hebei Province was once a desert, but now it has become the biggest man-made forest in China.
对樟子松人工林群落结构和土壤水分动态进行研究。
The community structure and dynamics of soil water of Pinus sylvestris var. of the mongolica plantation were studied in a growing season.
人工林凋落物中放线菌分离方法研究。
Study on isolation methods of actinomycetes of artificial forest litter.
他们同时也生产红树林在一个人工林里。
杨树在我国分布很广，是人工林主栽品种之一。
Poplar distributed widely in our country was one of the main varieties of plantation.
截至目前，约有65万农户参加了人工林栽培与管理工作。
To date, about 650,000 households have participated in the establishment and management of tree plantations.
本文研究了晋西北汕松人工林的生物量与营林前景。
This paper centers on the biomass and afforestation prospect of pine plantation in northwest Shanxi Province.
本研究结果为樟子松人工林的人工整枝提供了理论基础。
The results of this research could provide the theory foundation of manual pruning for p.
人工林土壤全氮与土壤有机碳含量之间呈显著的线性正相关。
The contents of total nitrogen had a significant positive relationship with the soil organic carbon.
研究结果为湿地松人工林培育和木材合理利用提供科学依据。
The conclusions provide scientific basis for plantation cultivation and rational utilization of Pinus elliottii.
这些模型可用于估计一定立地条件下的楠木人工林的生产量。
The models can be used to estimate the biomass of this kind of stand in certain circumstances.
定向培育阔叶树工业人工林是解决我国木材紧张局面的根本途径。
Oriented cultivation of hardwood industrial plantation was the fundamental way to resolve the tense situation of Chinas' timber.
坡度、株行距对樟子松、金红苹果人工林幼树的生长影响均较小。
Slope and spacing and intra-spacing had little effect on Pinus sylvestris var. mongolica and Jinhong apple.
DG指数在反映不同人工林土壤动物群落特征上具有很好的稳定性。
Our results showed that DG index truly reflects soil fauna community characteristics in various artificial vegetation types.
这可能是大多数杉木人工林生态系统发生严重退化的一个重要原因。
This is possible to be an important cause for degradation of most Chinese fir ecosystems.
提高人工林的集约经营程度是追求林地平均收益最大化的有效手段。
It was an effective means to enhance intensive management to optimize the use of woodlands.
以纯胶林、胶茶人工林及旷地为对照，分析了人工雨林的小气候效应。
Microclimatic factors including solar radiation, temperature, humidity, and wind and so on in artificial rainforest were studied.
并对我国人工林生产力提高的优势与困难，进行了全面的分析和评价。
The authors also analyzed and evaluated the superiority and obstacles in raising the productivity.
为了满足市场对木材产品的大量需求，项目区营造的人工林已超额完成了项目目标。
Responding to high market demand for timber products, timber plantation in participating areas has exceeded project targets.
人工林的面积现正不断扩大，它们对全球工业木材生产的贡献值已接近总量的50%。
Planted forests are expanding, and their contribution to global industrial wood production is approaching 50 percent of the total.
在林业生产实践中，用灰色系统模型预测人工林材积生长率有其适用价值。
It is worth while to apply the gray system model to predict the forest growth in practice.
鸟类物种总数以灌丛和人工林最高，均为15种。阔叶林最低，为10种。
The number of bird species was highest in the shrub and plantation (15 species) and lowest in deciduous forest (10 species).
在立地条件一致的前提下，研究了落叶松人工林土壤养分含量的年动态变化趋势。
On the premise of identity for site conditions, the annual dynamic changes of soil nutrients under larch plantation were studied.
探讨宏观尺寸变化的根本原因，为改善人工林杉木木材尺寸稳定性提供理论依据。
Eventually, the cause of wood dimension unstability was investigated to provide substantial data for improving dimensional stability of wood.
落叶松人工林是我国北方林区主要用材林之一，对我国的国民经济建设起到重要作用。
Larch plantation is one of the main commercial forests in north China and has an important contribution to the national economy.
人工林树干直径增量以地径处最大，向上逐渐变小，从枝下高处又开始增大，直到冠部。
The maximum increment of stem diameter was at bottom, diminished up to branch height, then increased to crown.
一些州的农民仍然可以通过打井来吸起地下水，而且人工林吸收了大量本可以流向河中的雨水。
Farmers in certain states can still drill Wells to suck up groundwater, and tree plantations absorb a lot of rainwater that would otherwise find its way into the river.
结果表明：(1)人工林气温效益显示出非生长季缓冷保温作用大于生长季缓热降温作用的特点。
Results show that; (1) The effect of air temperature in plantations get increased more significant in growing season than that decreased in growing season.
结果表明：(1)人工林气温效益显示出非生长季缓冷保温作用大于生长季缓热降温作用的特点。
Results show that; (1) The effect of air temperature in plantations get increased more significant in growing season than that decreased in growing season.
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