白桦低产林,low-yielding Asian White Birch(Betula platyphylla) forest
1)low-yielding Asian White Birch(Betula platyphylla) forest白桦低产林
2)Betula platyphylla forest白桦林
1.Throughfall and stemflow in aBetula platyphylla forest at the subalpine of Western Sichuan;川西亚高山白桦林穿透雨和茎流特征观测研究
2.Soil physical properties and leaf photosynthetic characteristics in three stands,Betula platyphylla forest,Quercus liaotungensis forest,and Betula platyphylla-Quercus liaotungensis mixed forest,which were located in the secondary zone of Ziwuling Forest of the Loess Plateau,were studied.对黄土高原子午岭次生林区白桦林、辽东栎林和白桦-辽东栎混交林3种林分的土壤物理特性和叶片光合特性进行了研究。
3.The tree height, diameter at breast height and growing stock ofBetula platyphylla forest stand are lower in the Bashang Plateau than those in the Baxia Mountain in northern Hebei Province and eastern Inner Mongolia.河北北部坝上与坝下白桦林比较 ,无论是林分的树高、胸径、蓄积量 ,还是白桦的高生长、直径生长、材积生长 ,都是坝上小于坝下 。
英文短句/例句
1.Management Techniques of Natural Birch Forests and Its Objective management天然白桦林经营调控技术及目标管理
2.Study on Water Conservation and Hydrochemical Characteristic of Different Stages of Betula Platyphylla Forest不同林龄白桦林水源涵养及水化学特征研究
3.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)
4.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
5.Effect of Soil Properties in The Natural Secondary Forest by Planting Conifer and Reserving Broad-leave栽针保阔对天然次生白桦林土壤养分的影响
6.Infestation of Betula platyphylla by Anoplophora glabripennis and Its Control Using Insecticides光肩星天牛对白桦林的危害及药剂防治效果
7.The Study and Application of Health Assessment Index System for Betula Platyphylla Forest in Daqing Mountain of Inner Mongolia.内蒙古大青山白桦林健康评价指标体系研究及应用
8."They drove in a black limousine, past groves of birch trees and endless rows of identical new buildings."他们驾着一辆黑色大轿车,经过一片片白桦林,穿过一排排鳞次栉比的新建筑。
9.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
10.Study on Precipitation Hydro-chemical Characteristic of Different Stages of Betula platyphylla Secondary Forest不同林龄白桦次生林降雨水化学特征研究
11.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
12.Study on Growth Models with Artificial Neural Network for Betula Platyphlla Plantation白桦人工林生长的人工神经网络模型研究
13.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
14.Study on the Artificial Neural Network Model of Individual Tree Growth in the Betula platyphlla Plantation白桦人工林单木生长的人工神经网络模型研究
15.Soil properties and water conservation function of Betula platyphylla secondary forest with different stand ages不同林龄白桦次生林土壤特性及其水源涵养功能
16.Influence of Decayed Stump in Betula platyphylla Plantation on Soil Temperature in Gap人工林白桦伐根腐朽程度对林隙内土壤温度的影响
17.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
18.Changes of Leaf Traits of Betula Ermanii, a Timberline Tree Species, Along Altitudinal Gradient in Changbai Mountain长白山林线树种岳桦（Betula ermanii）叶性状沿海拔梯度的变化
相关短句/例句
Betula platyphylla forest白桦林
1.Throughfall and stemflow in aBetula platyphylla forest at the subalpine of Western Sichuan;川西亚高山白桦林穿透雨和茎流特征观测研究
2.Soil physical properties and leaf photosynthetic characteristics in three stands,Betula platyphylla forest,Quercus liaotungensis forest,and Betula platyphylla-Quercus liaotungensis mixed forest,which were located in the secondary zone of Ziwuling Forest of the Loess Plateau,were studied.对黄土高原子午岭次生林区白桦林、辽东栎林和白桦-辽东栎混交林3种林分的土壤物理特性和叶片光合特性进行了研究。
3.The tree height, diameter at breast height and growing stock ofBetula platyphylla forest stand are lower in the Bashang Plateau than those in the Baxia Mountain in northern Hebei Province and eastern Inner Mongolia.河北北部坝上与坝下白桦林比较 ,无论是林分的树高、胸径、蓄积量 ,还是白桦的高生长、直径生长、材积生长 ,都是坝上小于坝下 。
3)birch forest白桦林
1.Dynamic characteristics of soil collembolans in thebirch forest of Xiao xinganling;小兴安岭白桦林土壤跳虫的动态特征
4)Betula platyphylla community白桦林群落
5)Betula platyphylla secondary forest白桦次生林
1.Based on the community structure analysis of the Larix principis-rupprechtii artificial forest and theBetula platyphylla secondary forest, this thesis evaluated the underway tending felling and improvement of second-growth-stand, then compared their productivity in mountain region and steppe region.本文在分析内蒙古白音敖包草原区华北落叶松人工林和白桦次生林的群落结构的基础上，对己采取的经营措施进行效果评价，并在此基础上对森林区和草原区的两种林分的生产力进行了分析比较。
2.This paper sdudied soil properties,water holding capacity of litter and water storage performance of different stages of betula platyphylla secondary forest, the study revealed the functional differences of water conservation.研究地设在东北林业大学凉水国家级自然保护区内,通过对不同林龄白桦次生林的土壤特性、凋落物持水量、林地土壤贮水性能进行研究,以揭示不同林岭白桦林水源涵养能力差异,同时也对其林外降雨、穿透雨、树干茎流和枯透水中的Cl~-、NH_4~+-N、NO_3~--N、TN、Na~+、K~+、Ca~(2+)、Mg~(2+)、Fe、Mn等养分元素进行测定,以研究4个林龄之间降水化学性质的差异。
6)secondary birch forest(SBF)次生白桦林
1.secondary birch forest(SBF),secondary conifer and broad-leaved mixed forest(SCBF),and original broad-leaved Korean pine forest(OBPF),from the early successional stage to mature forest understory were investigated by using sweeping nets,light traps and pitfall traps.昆虫多样性变化对生态系统健康有重要的指示作用,为研究昆虫群落变化与生境演替之间的关系,本研究采用网捕、灯诱和诱捕法系统调查了长白山针阔混交林不同演替阶段(次生白桦林、次生针阔混交林、原始阔叶红松林)昆虫群落的组成和多样性,分析了昆虫在森林演替过程中的规律及与植被群落之间的关系。
延伸阅读
红桦林沿库尔德宁大铁桥河西公路南行约3公里,便到红桦林.红桦林宽十几米,数十米不等,长近1公里.奇的是沿河西到公路两侧几科是一色的高大桦树,树龄都在百年以上.疏处古木参天,或曲或挺;密处葛绕藤牵,牛马不能进.林灌之下,草莓,马林,蘑菇俯拾皆是.河水绕林哗哗流淌,在河不平缓处,观景钓鱼更是一种难得的雅致和离受.来到红桦林仿佛进入了童话世界,其情其景,妙不可言.
