树种

Up to now there are about 68 edible plant species belonging to 35 families for Hainan Gibbon had been monitored and recorded, of which the dominant species are trees, and the main families are Moraceae and Lauraceae.

海南长臂猿主要觅食植物已知有35科68种，以乔木树种为主，其中尤以桑科和樟科树种为多。

Phoebe bournei belonging to Lauraceae family.is High-quality broad leaf trees, in recently,because of the timber being very scarce.

闽楠属樟科阔叶树种，是优质乡土阔叶树种，近年来由于木材奇缺，闽楠大径材的价格一路飙升。

And the scientific research showed that they are medicable to insomnia, anxiety and other diseases that found in modern people. 4 The regression models of biomass were used to calculate the total cumulative biomass. Average biomass of six samples was 62.88 t·hm-2 after cutting 3 years, which was higher than that of tropical secondary forests with 5 years succession. It can be concluded that traditional fuel woods had played an important role in conservation of tropical forest in the area. Caloric values were not different in major fuel species (Coefficient of variation was only 1.1%). The similar result was found in stems of C. siamea after growing different years. The main reason of C. siamea cultivation was that it had the character of hardwood, easy collecting, little ash, and so on.

铁刀木的各个部位都作药用，资源量大的树叶和心材使用最多，并且现有的研究成果表明它们具有多种活性成分，针对现代人常患的失眠、焦虑等疾病具有较好疗效。4）通过收获法拟合的生物量回归模型对推测西双版纳地区铁刀木林薪柴蓄积量有较高的参考价值，砍伐3年后的六个样方中铁刀木的平均生物量为62.878 t.hm-2，高于5年林龄的热带次生林（16.35t·hm-2），对西双版纳热带雨林的保护有着重要意义。5）几个村寨最主要的薪材树种热值研究结果变异系数仅为1.1％，各薪材树种之间热值相差不大，铁刀木被选择为传统薪炭林更多是因为材质坚硬、收获运输方便、燃烧完全等特点。

The results showed that the dominant tree species Picea jezoensis and Abies nephrolepis were distributed nearly over the whole transect,and the companion trees and most of shrubs were found in certain fragments respectively.The total number of species of the plot varied slightly,but species composition among the plots varied greatly along with the elevation variation.This trend reflected the high habitat diversity of this forest zone.

研究结果表明主要树种云杉和冷杉在整个暗针叶林带均有分布，而伴生树种和多数灌木出现于一定海拔范围内；沿海拔梯度物种数变化小而物种组成变化大则表明长白山暗针叶林丰富的生境多样性。

As the agent of the U.S. Biath seed companies,we have been successfully introduced dozens ornamental trees from North America which are suitable for the growth in China, including one Improved Acer rubrum, Nyssa sylvatica ,many valuable tree species in Europe and the United States. We have a strong technical team and the support from Institute of Botany of Academy of Sciences in china, Hebei Agricultural University, and many other units to ensure the product variety and quality, and provide to the customer good technical support and service.

作为美国比亚特种子公司、德国莱恩种苗公司、以色列捷尼种子公司的中国代理商，现已成功从北美引入适宜中国地区生长的优良彩叶树种，包括美国改良红枫、欧洲多花篮果树等数十种适合我国栽培的欧美名贵树种，现拥有一支强大的专业技术队伍，有中国科学院植物研究所、河北农业大学等诸多单位的鼎力支持，公司保证产品品种及质量，并且对客户提供良好的技术支持与售后服务。

The results showed that semi-lethal temperature of P. racemosa was -35.6℃, indicating that plant could overwinter safely in Xinjiang without any protection measures. It can be used as suitable tree species in landscope engineering and afforestation.

结果表明，紫叶稠李的半致死温度为-35.6℃，在新疆寒冷的冬季不采取任何措施可安全过冬，是园林工程、荒山绿化树种配置的优良树种。

Picea mongolica, which is a characteristic and one of the first afforestation tree species in Inner Mongolia, plays a great role at the vegetation recovery in the desertfied areas.

沙地云杉是内蒙古赤峰地区与锡林浩特的局部地段所特有乡土树种之一，也是沙地造林的首选树种之一，对于恢复沙化土地植被具有重要的意义。

Picea mongolica is a rare and endangered species in the world, which is conferred to the tide of "biology gene bank" and "living fossil", and mainly distributes in Baiyinaobao sandy land of Chifeng.

沙地云杉是世界上罕见的树种，也是世界珍稀濒危树种之一，有&生物基因库&和&活化石&之称，集中分布在赤峰市白音敖包沙地。

The results showed that Pb, Cd and Cu in the leaves of plants were positively related to their concentration in air significantly. The content of heavy metal in plant leaves was obviously associated with the heavy metal properties, pollution conditions and tree species. Platanus hispanica had a higher accumulation in Pb, While Populus deltoides in Cd and Cu.

研究表明，植物叶片中重金属Pb、Cd和Cu的累积量与大气中Pb、Cd和Cu的相对含量呈显著正相关；所调查绿化树种叶片的重金属含量因重金属种类、采样区和树种的不同具有明显差异，悬铃木叶片累积Pb的能力最强，而杨树叶片对Cd和Cu的累积能力最强。

By measuring diurnal photosynthesis and transpiration, three urban tree species in Northern China of Sophora japonica, Acer mono Maxim and Platanus orientalis were studied so as to appraise theirs alleviative effect on urban heat island and their ecological benefits of carbon dioxide absorbing capacity, oxygen producing, and cooling and humidification.

选择华北地区3种常见的城市绿化树种国槐、元宝枫、法桐，测定其光合速率及蒸腾强度，据此估算其固碳量、释氧量和降温增湿量，并量化评价3种绿化树种的生态学效应及对城市&热岛效应&的减缓作用，时间尺度为日。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。