conifer forests meaning in English
针叶树林
Examples
- Subalpine is the coumtry of cold - warm conifer forest which bistributing the midst of the elevation between 2200m to 4200m
其中的微生物及与微生物和土壤肥力密切相关的土壤酶活性必然有其独特性。 - Clearing the massive conifer forests of minnesota continued into the first decades of the 20th century , when production peaked in 1905
明尼苏达州大片针叶树森林的采伐一直持续到20世纪的最初数十年，木材产量在1905年时达到最高峰。 - In this paper , two major types , the natural vegetation and crop vegetation in luota are studied . we can gain the different distributive area by remote sensing technology , in accordance with conifer forest , broadleaf forest , thick shrub forest , shrub forest , herbs shrub forest , herbs naked rock and crop vegetation . the valuation of the output of standing trees , water conserbancy , soil conserbation to control erosion and purify the air is the main basis which is used to value the functions of the forest ecosystem of the conifer forest and broadleaf forest of luotathe result reveal that the total ecological function value of the forest which area is 1388 . 8 hm2 is estimated up to 18 . 36 million yuan per annum . the synthetic valuation system of luota vegetation is put forward by the valuation of per hm2 in evergreen - deciduous forest , conifer forest , conifer and broadleaf forest , broadleaf forest , scatteredtree - shrub forest , coppice - shrub forest , herbs shrub forest , econamic crop and cereal crops . the plant resources is valued according to the ornamental and green plant . lumber trees and medical plant . ornamental plant includes hosta plantaginea . lilium brownii van viridulum , spiraea cantomiensis and so on . lumber tuees includes zzzelkova schneideriana , emmenopterys henryi , catalpa fargesii and so on
本文把洛塔现存植被分为自然植被与栽培植被两大类进行研究，通过遥感技术对现存植被按针叶林、阔叶林、密灌、灌丛、草灌、荒草裸岩、农作物植被等类型进行分布面积的统计，在此基础上，以林产品价值、涵养水源价值、保护土壤价值和净化空气价值作为估算的主要参考依据，对已成林的针叶林与阔叶林进行森林生态系统的价值估算，得出面积为1388 . 8hm ~ 2的针叶阔叶林的森林生态价值为1836 . 37万元，参照这一生态价值量，把洛塔植被按常绿落叶林、针叶林、针阔混交林、阔叶林、疏林?灌丛、矮灌丛、荒草灌丛、经济作物和粮食作物，以每hm ~ 2的价值量提出了洛塔植被的综合价值体系。 - The results were following : ( l ) generally , all four indices showed the similar variation patterns in species diversity ; ( 2 ) generally speaking , the order of species diversity indices changed with the pattern : shrub layer tree layer herb layers ; ( 3 ) the species diversity of evergreen broadleaved forests was larger than that of warm conifer forests ; ( 4 ) the species diversity of forests in meizi lake area has been affected by human factors
结果表明： ( 1 )梅子湖森林植被样地物种多样性测度的结果，上述4种指标总体上表现出相同的变化趋势。门）总体看来， 14个样地的物种多样性指数在群落不同层次的变化规律为：灌木层乔木层草本层。 （ 3 ）不同植被类型的物种多样性特征是：常绿阔叶林暖性针叶林。 - Abstract : the restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology . through interpreting the images of remote sensing in 1985 and 1999 , the basic information of forest resources of lushuihe forest bureau , which is a typical forest area of changbai mountain , was obtained with support of gis . by dividing land covers of lushuihe area into 10 types ( water body , residential land , stump land , farming land , wetland , mature conifer forest , midlife conifer forest , mature broadleaf forest , midlife broadleaf forest , and man - made young forest ) and dividing the riparian zone into four buffers ( in turn , 1000 , 2000 , 3000 , 4000 m away from the river ) , the changes of riparian forest resources during 1985 - 1999 were analyzed . the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved , but the riparian ecosystem was still flimsy . in buffer 1 , 2 , 3 , the area of midlife conifer forest increased largely , but the areas of other types of land covers all decreased . midlife conifer forest had a comparatively good status in the three buffers . in buffer 4 , midlife conifer forest , mature conifer forest , and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions . area percentage of wetland decreased in buffer 1 , buffer 2 , and buffer 3 , even in buffer 4 in which forest ecosystem rehabilitated comparatively well , so protecting and rehabilitating wetland is a very difficult task
文摘:本文对两期遥感图像进行解译,并在gis支持下提取露水河林业局主要河流两岸各缓冲区森林资源信息,经分析得到各类地物在1985年及1999年的变化趋势.结果表明:在河流沿岸对森林的采伐强度1999年较1985年明显减小,整体生态环境较1985年有所改善.在缓冲区1 , 2 , 3除中龄针叶林大幅度增加外,其它地物类型面积均减少,由此可以看出,在这三个缓冲区内针叶林得到了较好的恢复.在缓冲区4内,中龄针叶林、成熟针叶林、成熟阔叶林形成一个林龄梯队,有利于森林生态系统的稳定与功能的发挥,十五年间缓冲区4受到的干扰相对较小.湿地数量在四个缓冲区内均有所减少,虽然在缓冲区4内森林生态系统恢复的较好,但湿地面积仍有所减少,说明保护及恢复湿地资源是一件非常艰巨的任务,必须引起高度重视.图5表2参12