mahogany birch (Betula lenta L.)

Betula platyphylla and Populus davidiana forests of the forest\|steppe ecotone in northern Hebei and eastern Inner Mongolia are abundant in plants,which are,at least,35 families,95 genera and 117 species.

这种斑块状的白桦林和山杨林是森林—草原交错带显著的景观特点 ,也具有较高的生物多样性。

Studies on Population Ecology of Subalpine Birch Forests in the Northeast Border of the Qinghai-Xizang Plateau;

青藏高原东北边缘亚高山桦木林种群生态学研究

Invertebrate biologist Snorre Hagen and his team at the University of Troms? in Norway monitored the leaves and flowers of a dozen mountain birch trees for two years.

因此，挪威特浪索大学的无脊椎动物学家哈根及他的团队，连续两年监测了12种山桦树的叶及花。

Analysis of the Rational Production of Huashugou Mining Area in Jingtieshan Iron Mine;

镜铁山铁矿桦树沟矿区合理产量分析

Extraction of Betulin from Changbai Mountain Birch Bark, Synthesis of Its Derivatives and Study on Their Bioactivities;

长白山白桦树皮中白桦脂醇的提取、衍生化及生物活性研究

Study on Gap Characteristics and Stability of Betula Albo-sinensis Forest in Taibai Mountains;

太白山红桦林林隙特征及其稳定性的研究

A Feasible Study on the Potherb Base Construction in Huanan Forestry Bureau;

桦南林业局山野菜基地建设可行性研究

Seasonal changes of soil respiration in Betula platyphylla forest in Changbai Mountain, China

长白山白桦林地土壤呼吸的季节变化(英文)

Pattern analysis of different populations in natural secondary forest of Betula davurica in mountainous area of Beijing

北京山区黑桦天然次生林不同种群的格局分析

Growth Process and Succession Trend of Polar-Birch Secondary Forests in Changbai Mountain,Northeast China

长白山杨桦次生林生长过程与演替动向分析

The Seed Bank in Logging Gaps in Populus davidiana-Betula platyphylla Secondary Forests in Changbai Mountain

长白山杨桦次生林采伐林隙种子库特征

Soil CO_2 released effluxes of Birch forest in the Changbai Mouhtains

长白山天然次生白桦林土壤CO_2释放通量研究

Study on Reasonable Remaining Number Per Tuft of Sprouting Birch in Mountainous Area in Northern Hebei Province

冀北山地萌生白桦每丛合理保留株数的研究

Spatial Patterns and Associations in a Birch-fir Forest in Mt. Taibai

太白山牛皮桦-巴山冷杉混交林空间格局及关联性研究

"The hardwoods are trees with broad leaves. Oak, beech, birch, sycamore, maple, mahogany, and teak are all hardwoods. "

硬木材是阔叶树。橡、山毛榉、桦、美国梧桐、槭、红木、柚木全都属于硬木。

Study on Natural Regeneration and Seed Germination Characteristics of Betula Albo-sinensis at MT.Taibai, China;

太白山红桦林自然更新障碍及种子萌发生理的研究

Photosynthetic Responses of Butula Albosinesis to Elevated Atmospheric CO_2 Concentation and Temperature in Subalpine of the Western Sichuan;

川西亚高山红桦光合作用对大气CO_2浓度和温度升高的响应

Response of Leaf Traits and Growth of Betula Ermanii to Altitude in Changbai Moutain;

长白山岳桦（Betula ermanii）叶性状和生长对海拔梯度响应研究

Spatial Pattern Analysis in a Natural Secondary Betula-Abies Forest at Sub-Alpine Area of Western Sichuan, China

川西亚高山红桦—岷江冷杉天然次生林的空间格局分析