Long-term effects are primarily mediated by changes in tree species composition and the consequent alterations of forest structure, productivity, and nutrient uptake.
长期影响主要是由树种组成的变化以及随之而来的森林结构、生产力和养分吸收的变化所导致的。
They measure and help monitor the status and changes of forests in quantitative, qualitative and descriptive terms that reflect forest values as seen by those who defined each criterion.
它们以定量、定性及描述的术语，量度森林的状况及变化，并促进对其的监测，这些术语可反映界定各项标准者所见证的森林价值。
The changes are manifested in belts from forest, bush, meadow and steppe to desert.
森林、灌丛、草甸、草原到荒漠呈带状更迭。
It has important significance for scientifically managing and running forest resources to evaluate the dynamic changes of the service function of forestry ecosystem system.
客观评价森林生态系统服务功能价值动态变化，对于科学经营与管理森林资源具有重要的现实意义。
Succession of forest community is characterized by the changes in community organization.
森林群落的演替是以群落结构的变化为表现特征的。
Forest fragmentation causes large changes of the physical environment as well as biotic changes in forest edges.
森林片断化引起了森林边缘物理环境与生物的变化。
The data renewal of forest resource archives based on GIS can reflect the dynamic changes of forest resources.
采用基于GIS等先进技术的森林资源档案，数据更新才能及时反映森林资源动态变化。
The paper clarifies and explains the data about the forest area and the volume according the time sequence, and reveals the changes of forest resources in Heilongjiang Province.
文章沿时间顺序对黑龙江省森林面积和蓄积量的数据的参考价值进行考释，以揭示黑龙江省森林资源的变迁。
Forest fragmentation has immeasurable effects on birds. The population dynamics, population genetics and local evolution of birds are to some extent affected by the changes of environment.
森林生境片断化对生活在其中的鸟类产生着难以估量的影响，鸟类的种群动态、种群遗传和局部进化等都不同程度地受环境变化的影响。
After forest fire, the ability to regulate the water circulation of forest was reduced, and the changes in streamflow depended on the precipitation even more.
火烧后，森林对水分循环的调控能力减弱，径流的变化更加依赖于降雨。
Along with the changes in time, forest landscape produced corresponding seasonal change, especially plant landscape in autumn.
森林风景随着时间变化而相应的产生季相变化，尤其以秋季植物景观最为壮观。
But in fact forest light has been carefully watched mainland market changes in the least, the camera.
但事实上林光如却一直在仔细地观察着内地市场的每个细微变化，相机而动。
The research on CO2 flux in forest system was one of the hot topics in global changes.
森林生态系统CO 2通量的研究已成为全球变化研究的热点之一。
The paper analysizes the state-owned forests changes in the Northeast three major areas of the forest resources with the data of forest management inventory.
通过二类资源清查数据，对东北国有林区三个主要地区的森林资源变化情况进行了分析。
The second chapter discusses the changes of the forest area and forest coverage, analyzes the reason of the decrease of forest resources, and reveals the serious consequences by forest destruction.
第二章论述了民国时期西南地区森林面积、森林覆盖率的变化，分析了造成森林资源大量减少的原因，并揭示出森林破坏带来的严重后果。
The natural wind changes frequently in forest environment because of topography, terrain, ground surface vegetation and so on.
自然风在森林环境中因受地形、地势和地表植物等因素的共同影响而变化丰富。
It is very different for the forest to regulate the flood with the changes of the area, yardstick, the type of the vegetation, etc.
森林对洪水的调节作用因地区、尺度、植被类型等的变化而相差较大。
DID model was used to analyze net effects of CFTRC on the changes in forest areas and forest volume;
DID模型用于分析集体林改对森林面积和森林蓄积量变化的净影响；
The walls turn into a green forest, and the sunlight of summer shines through thick leaves of the trees, she changes into a beautiful girl with rose-colored and full cheeks and curly blond hair.
墙壁变成一个绿色的森林，夏季阳光透过浓密的叶子眼前一亮，她变成一个玫瑰色的脸颊，卷曲和全金发的漂亮女孩。
When acid rain falls on forest floors, it changes the ingredients - the 'PH level' - of the soil.
酸雨对森林地表层的土壤来说，它改变了原来的pH值'。
Forest soil respiration is an important part of the soil respiration in terrestrial ecosystems, the dynamic changes of which will bring far-reaching influence on the global carbon cycling.
森林土壤呼吸是陆地生态系统土壤呼吸的重要组成部分，其动态变化将会对全球碳循环产生深远的影响。
The wilting litter of the middle aged secondary mountain poplar forest and the decomposing process of litter as well as an amount of their accumulation were analysed with changes in time.
通过对黄土丘陵区中龄山杨次生林的凋落物及其分解过程，以及蓄积量随时间变化的分析，研究了枯枝落叶层的持水和截留作用及其蓄水减沙效益。
So there is still great growth potential in forest carbon storage. (2) The area of dominant species and the changes of age groups are closely related to carbon stock changes.
虽然栎类在三个时期面积变化不是很大，但随着树木的生长，总碳储量仍不断增加。
The relative humidity inside and outside the Quercus liaotungensis forest showed changes of an inverted"parabolic curve"change;
林内外大气相对湿度的变化趋势基本呈倒置的“抛物线”；
This means that a forest policy is vital, …, and that it must allow for the inevitable changes that take place in the forests, in needs, and hence in policy.
这就意味着一项森林政策至关重要，它必须考虑到森林环境，人民需求，国家政策发生不可避免的变化。
Take the Loess Plateau for an example, there are various changes in temperature of underground water with steppe belt, forest steppe belt and forest belt.
拿黄土高原来说，就有草原带、森林草原带和森林带等不同地带性水热特征。
Take the Loess Plateau for an example, there are various changes in temperature of underground water with steppe belt, forest steppe belt and forest belt.
拿黄土高原来说，就有草原带、森林草原带和森林带等不同地带性水热特征。
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