1) Betula platyphylla forest
白桦林
1.
Throughfall and stemflow in a Betula 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 of Betula 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 。
2) birch forest
白桦林
1.
Dynamic characteristics of soil collembolans in the birch forest of Xiao xinganling;
小兴安岭白桦林土壤跳虫的动态特征
3) Betula platyphylla community
白桦林群落
4) Betula platyphylla secondary forest
白桦次生林
1.
Based on the community structure analysis of the Larix principis-rupprechtii artificial forest and the Betula 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。
5) 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。
6) low-yielding Asian White Birch(Betula platyphylla) forest
白桦低产林
补充资料：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.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条