灌木层主要树种均呈集群分布。
All the tree species in shrub layer were contagious distribution.
青杨是青海省营造山地农田林网的主要树种。
Populus cathayana is the main species to plant farmland forest net work in Qinghai province hill .
古老的石桦是勘察加半岛上的主要树种，这些树具有不可思议的耐力。
The stone birch is the main tree of the Kamchatka Peninsula. These trees are unbelievably enduring.
本文对上海市郊防护林主要树种上的害虫种类进行了初步调查。
Investigation into important species of pest on the shelter trees in Shanghai area.
对于我国亚热带森林主要树种异戊二烯的排放速率进行了初步测定。
The emission flux of isoprene from major species in subtropical forest is also measured.
因此，从长远的角度考虑，桉树作水土保持主要树种，须以混交林方式营造。
So, if the eucalyptus is chosen as a strong species for soil conservation, it should be in form of mixed woods...
秘鲁具有丰富的松树资源，主要树种有展松、 辐射松、粗糙枝松和粉枝五针松等。
Pine resources are abundant in Peru. Main pine species are Pinus patula, P. radiata, P. montezumae and P. pseudostrobus .
关山的森林覆盖率达到了36.56%以上，主要树种包括：桦树、白杨树、椴树。
The mountain forest coverage rate is 36.56% , main species including birch , poplars , lime tree .
另外，中式婚庆园的植物配置选择了能表现江南园林风格的竹子作为主要树种之一，这在东北地区是一个开拓性的尝试。
In addition, bamboos are employed as major planting trees for displaying south style in traditional Chinese wedding celebration garden, it is a pioneer try for garden design in Northeast China.
在泗阳，种植面积超过10万公顷的杨树如今已成为该县的主要树种，而且过去三十年来，林木覆盖率也从最初的7%增加至47%。
Covering more than 100,000 hectares of the county's land area, poplars are today Siyang's principal tree species, increasing its tree cover from seven to 47 percent over the last 30 years.
根据子午岭林区林虫区系组成和区划特征，结合主要树种害虫危害特点，提出了预防和除治子午岭林区森林害虫的3项措施。
Based on the fauna composition and division characteristics of forest pest insects in Ziwu Mountains and damage of pests on important tree species, 3 control countermeasures were provided.
长期影响主要是由树种组成的变化以及随之而来的森林结构、生产力和养分吸收的变化所导致的。
Long-term effects are primarily mediated by changes in tree species composition and the consequent alterations of forest structure, productivity, and nutrient uptake.
美国山核桃是起源于美国的主要坚果树种，全世界百分之八十的山核桃产量来自于美国。
Pecans are the only major tree nut native to the U.S., which produces about 80 percent of the world's crop.
美国山核桃是起源于美国的主要坚果树种，全世界百分之八十的山核桃产量来自于美国。
Pecans are the only major tree nut native to the U. S., which produces about 80 percent of the world's crop.
在盛产椰子的泰国南部，猴子是上树采摘椰子的主要劳动力。但因今年椰子收购价不断滑落，椰树种植者支付不起雇猴子的费用，导致许多猴子失业。
Many coconut-picking monkeys have turned jobless in South Thailand as coconut growers cannot afford to hire them due to constantly decreasing wholesale prices of the fruit.
我主要负责植物设计。因为土壤盐碱很严重，因此，植物选择耐盐碱品种及选择乡土树种。
I am mainly responsible for plant design. Soil salinity is a serious. Therefore, Salt Tolerance plant species selection and select local native plant species.
该文主要论述了彩叶树种产业的开发现状及存在问题，并提出了一些相应的对策建议。
The current situation and some problems of colored leaf trees industry in China are mainly discussed here and some countermeasures to develop the industry are also put forward.
我主要负责植物设计。因为土壤盐碱很严重，因此，植物选择耐盐碱品种及选择乡土树种。
Plant Designer: I am mainly responsible for plant design. Soil salinity is a serious. Therefore, Salt Tolerance plant species selection and select local native plant species.
我公司以樟子松为主要加工树种，主要产品为刨光板材，拼板等集成材。
My company as the main processing Pinus species, main products polishing plates, puzzle such as timber.
金沙江干热河谷地区的主要造林树种中，以马占相思、山毛豆、真珠相思、大叶相思、台湾相思、绢毛相思、坡柳在旱季游离脯氨酸累积较多；
The accumulation of free proline in some major tree species growing in dry and hot river valley of Jinsha during both dry and rainy seasons has respectively been determined.
本实验对武汉市城区主干道主要绿化树种的滞尘效应与叶表面结构进行了研究。
The dust detaining effect and leaf surface structures of major urban greening trees in the main roads of Wuhan were studied.
杨树是山东省主要造林树种之一，确定最佳采伐周期、造林密度、混交方式，是提高生物量的关键技术。
Poplar is one of the main afforestation tree species in Shandong Provicne. Defining the best cutting period, afforestation density and mixed mode is the key technologies to promote biomass.
以山东省常见的主要造林绿化树种为研究对象，进行林木耗水性研究。
The main Sylvicultural tree species in Sandong were selected for the researches on water consumption.
采用盆栽试验的方法，研究了不同土壤干旱条件下渭北主要造林树种苗木根系活力的变化。
Under different conditions of soil moisture, seedling root vigor was studied for major tree species planted in the Weibei Loess Plateau by means of a pot experiment.
桉树已成为湖南湘南地区栽培的主要纸浆林树种。
The Eucalyptus was the main pulp forest species in southern Hunan.
采用土钻法和盆栽试验研究了渭北地区主要造林树种的垂直根系分布特征及其抗旱性。
Methods of soil auger and pot experiment were used to research vertical root distributions and drought resistance of main planting tree species in the Weibei loess plateau.
杨树是朝阳地区的主要用材树种。
采用原子荧光光度法测定了30种东北主要绿化树种对大气中砷的吸收量。
The absorption capacity of 30 kinds of Northeast main greening tree species to As in the atmosphere were measured and studied by Atom Fluoresence Method.
马尾松是中国主要的人工林树种，其蓄积量最大，分布地域最广。
The Masson pine is a main kind of plantation tree in our country, which is rich in quantity and distributes most widely.
马尾松是中国主要的人工林树种，其蓄积量最大，分布地域最广。
The Masson pine is a main kind of plantation tree in our country, which is rich in quantity and distributes most widely.
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