According to the analysis on the characteristics of rainfall and penetrative rainfall in Larix gmelinii virgin forest and Successive Cutting Forest in the north of the Greater Xing an Mountains,it presents a power function between the interception of crown and the rainfall outside the stand;the interception ability of the two kinds of woodland are basically same.
通过对大兴安岭北部地区兴安落叶松原始林和渐伐林降水截留特征的观测表明,兴安落叶松原始林和渐伐林的林冠截留量与林外降雨量均呈幂函数关系;两种林地对林外降雨量的截留能力基本相同;研究表明,兴安落叶松渐伐林在经过多年的自然恢复后,林冠对降水的截留作用可恢复到经营前水平。
The paper investigates the chemical elements background value of the larix gmelinii in the Great Xinganling Mountains permafrost land, and analyzes its distribution characteristics of and influencing factors to different slope aspect,slope position and soil depth in virgin forest permafrost land, then compares with the soil background value of other.
本文针对大兴安岭兴安落叶松林多年冻土开展了化学元素背景值的调查研究,分析了原始林多年冻土化学元素含量在不同坡向(阳坡、阴坡)、不同坡位(坡上、坡中、坡下)和不同冻土层上的分布特征及其影响因素,并与全国土壤背景值进行了比较。
Tropical forests are categorized into primary forest,modified natural forest and planted forest in ITTO Guidelines for the Restoration,Rehabilitation and Management of Degraded and Secondary Tropical Forests made in 2002.
ITTO在2002提出的《热带退化与次生森林恢复、经营和重建指南》中将热带森林类别划分为原始林、修正天然林和人工林。
A forest or wooded area in its natural state.
天然林，原始林天然状态的树林或林区
a great fire swept across the bushland.
大火席卷了原始林带。
ITTO's Classification and Definition on Primary Forest,Degraded Primary Forest,Secondary Forest and Other Categories of Tropical Forests
ITTO对原始林、退化原始林、次生林和其他热带森林类别的界定
Age structure dynamics of virgin Larix gmelini forest.
兴安落叶松原始林年龄结构动态的研究
Green trees reach to the sky in the virgin forest.
原始森林里碧树参天。
the ferity of the animals of the virgin forest
凶残的原始森林动物
The railway cuts through a primeval forest.
铁路穿越原始森林。
aboriginal forests; primal eras before the appearance of life on earth; the forest primeval; primordial matter; primordial forms of life.
原始森林；地球上生命出现之前的原始时期；原始森林；原生物质；生命的原始形式。
Many of them escaped into the primary jungles of Bangka.
许多人跑到邦加的原始森林里躲起来。
A quarter of the area is covered with virgin forest.
四分之一的地区都是原始森林。
The acid rain is destroying the primitive tropical forests.
酸雨正在毁坏原始热带雨林。
There is a barbarian tribe living in this forest.
有一个原始部落居住在这个林区。
Most of the ancient forests in the world have been destroyed.
世界上大多数原始森林都被毁坏了。
I traveled most of the mountains and virgin forest alone.
（我独自一人行遍名山大川和原始森林。
They carved out great areas of land from the virgin forest.
他们在原始森林中开拓出大片大片的土地。
And they even protected massive virgin forests with the reason of “geomantic omen”.
他们并以“风水”为理由 ,保护了大片原始森林。
Far in the distance lay magnificent ranges of mountains covered with dense virgin forsets.
远处是覆盖着茂密原始森林的雄伟山峦。
highly variable species of very large primitive ferns of the Pacific tropical areas with high rainfall.
太平洋热带雨林地区的一种大型原始树蕨。