林带

海拔800～1500m，山地常绿阔叶林带；

Evergreen broadleaved forest belt at altitude 800 ~ 1500 m ;

海拔1900m以上，山顶矮林带。

Low forest belt on the top of the mountain above alt. 1900m .

防护林带能减弱风力。

The shelter belt breaks the force of the wind .

防护林带挡住了风沙。

The shelterbelt kept the sand in check .

两条林带屏蔽着农田。

Two forest belts screen the farmland from the wind .

他们营造了大片防护林带，防止风沙侵袭。

They built a great shelter-belt to check sandstorms .

杨树、水杉林带枯落物对土壤微生物C、N的影响

Impacts of litter of Populus and Metasequoia on soil microbial biomass

经济林带（海拔150～300m）10目，占14.6%；

Economic forest ( 150 ~ 300 m elevation ) 10 orders , 14 . 6 % .

应用SWOT分析法分析贵阳二环林带发展所面临的优势、劣势、机会和威胁因素，建立二环林带可持续发展的战略矩阵。

SWOT was utilized to analyze the superior and inferior positions , and opportunity and threat factors that are faced by the Second Ring Forest-belt of Guiyang .

通过对已建立的两条灌木林带防护效应的观测分析，结果表明：灌木林带使其周围的气流场重新分布，改变了近地表风沙流结构，0.5、2m高处的风速梯度发生显著变化。

Observational results show that the airflow field nearby shrub shelter belt is redistributed , and the near-surface sand stream is dramatically changed .

海拔l500～1900m，常绿落叶阔叶混交林带；

Evergreen and deciduous broadleaved mixed forest belt at alt. 1500 ~ 1900 m ;

文章通过选取珠三角地区具有代表性的16个树种的纯林样地，设置了10,20,30m的林带宽度进行降噪测试，结果表明：在10m林带宽度时，珊瑚树和高山榕的降噪效果较好；

The study was to test the Anti-noise effects of 16 representative tree species of pure woods on three different woods-widths which were 10 m , 20 m and 30 m in Zhujiang Delta .

流沙地0.5、1和1.5m高处日平均气温比灌木带内分别高出0.5、0.9和0.2℃，而相对湿度灌木林带内比流沙地平均高0.4、0.3和0.1%。

The daily average temperature in dunes at 0.5 , 1.0 and 1.5m heights is 0.5 , 0.9 and 0.2 ℃ higher than in the shrub shelter belt , respectively .

生土带防火线在防止森林火灾方面虽有些作用，但收效甚微。在生土带上栽种10～15m宽的耐火树种，形成生物防火林带，防火功能更好，而且经济效益显著。

Plantation of fire protection tree species in immature soil fire line for 10 ~ 15 meters could form a biological fire trace with better fire protection effect and economic benefit .

在基干林带后沿，立地条件较好，防护要求相对较低的防护林，宜采用带状更新，更新带宽以30m左右为宜，最大不能超过60m。

Regeneration in strip is suitable for the backward of core forest belt requiring comparatively secondary protection , where site is in good condition , the appropriate width is about 30 m , not exceeding 60 m in maximum .

在水平方向上，分布在林带区和作物区内各占3971%和6029%，其中作物区内的根量主要集中在40～120cm带距范围内，约占作物区内的747%；

Horizontally , the amount of the fine root in the wheat zone and the tree land accounted for 60 29 % and 39 71 % of the total respectively ;

基于林带结构（疏透度）与风速降低的关系，确定了林带主带间距离的主要参数，即，林带结构系数（δ）和以主害风为代表的小气候参数（Lrp）。

Based on the relationship between windbreak structure ( optical porosity ) and wind reduction , the chief indices for determining spacing interval , i.e. , the windbreak structure index () and the parameter of microclimate , represented by the problem wind ( Lrp ), were determined .

经观测，洪水期10～20m宽生长茂密、半淹没灌木防护林带，可平息60～70cm高波浪，减少堤坝淘刷29%，减少堤坝水土流失173m3／km。

Observations show that during flood period , 10 ~ 20 m wide shelterbelts composed of dense shrubs drowned half can level down waves 60 ~ 70 cm high . and decrease in lashing dikes and dams by 29 % and in soil erosion by 173 m3 / km .

这些珍稀物种主要分布在海拔1200～1800m山地常绿阔叶落叶阔叶混交林带，珍稀植物种类的物种丰富度在中等海拔高度上最大。

The main distribution range of the fourteen rare plant species was the mixed evergreen and deciduous broadleaved forest at elevation of 1200 ~ 1800m , where species diversity of plant community was the maximum at the moderate elevation .

结果表明，由于泡桐林带遮光对近林带样点的影响，相对日照总量（KST）降低35.74%，各项生长发育和产量品质指标均受到不同程度的影响。

Results showed that the sum of relative direct sunlight ( KST ) decreased by 35 . 74 % . The growth , development , yield and fruit quality of the apple trees were all reduced to varying degrees .

在大量野外调查基础上，用数码相机拍摄林带相片，采用CIAS软件测定林带疏透度，对已有数字图像处理法进行了改进，并对疏透度的变化规律进行了深入研究。

Based on the lots of investigation on farmland shelterbelts , we used digital camera to take pictures of shelterbelt and apply CIAS software to improve " digital image processing " for determining shelterbelt porosity so as to tho-roughly analyze the rule of porosity in farmland shelterbelts .

采用排序的方法，结合对群落生态外貌特点的分析，以及群落所处海拔高度，划分出森林植被垂直带如下：（1）山地常绿落叶阔叶林带，海拔1600m以下；

Using the methods of ordination and analysis of the physiognomy of the communities . which are distributed on the slope of the ridge , the following vertical belts of forest vegetation may be discerned : 1 . Evergreen and deciduous broad-leaf mixed forest belt at alt. 1600 m ;

EXPLO-500T型拖拉机式地震钻机采用大马力拖拉机底盘、全液压控制，结构紧凑、操作简单、可靠性强、钻井效率高，特别适合林带、丘陵地区施工。

EXPLO-500T type ′ s tractor-mounted seismic drilling rig uses powerful tractor 's chassis and full-hydraulic controlling that makes it be characteristics of compact structure , easy operation , strong reliability and high drilling efficiency and is especially suitable to construct in forest zone and hill area .

补充元素技术可有效地促进更新林带的生长；

Recruiting element technique could accelerate growth of regeneration shelterbelt efficiently .

林带对空气的湍流交换系数影响

The effects of shelterbelt on the coefficient of atmospheric turbulent exchange

防护林带的排水及耗水作用初步分析

Analysis of the function of Protection Forest Drainage and Water Consumption

针阔混交林带2000米2500米；

The needle-leaf and broad-leaf mixed forest zone 2000 & 2500m ;

关于尽快启动环城生态林带建设的建议

Suggestions on Starting the Construction of Ecological Forest Belt Around City

长形地带，林带。

The cotton belt is the region where cotton is grown .

克拉玛依农田防护林带的有效防护距离与面积研究

Efficient Protection Distance and Area of Farmland Protective Forest in Karamay