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;
According to the shape of scatter plot, the authors fitted and optimized regressive equation, and then estimated the forest volume.
根据其散点图形状进行方程拟合及优选,完成蓄积量的估测。
Based on the comprehensiveness of forest coverage rate, total standing forest stock, average forest volume, a new indicator called 'Forest Thickness'(FT) is put forward in this paper.
本文在综合森林覆盖率、活立木蓄积量、单位面积森林蓄积量等传统林业评价指标的基础上,研究提出了一项新的指标——森林厚度。
Based on the analysing of the data, selected relevant factors, made a series of tests and amendments with models, then created forest volume estimation optimal multivariate linear regression model.
在分析数据的基础上,选择了相关遥感因子和定性因子,并通过一系列模型的检验与修正,建立了公顷蓄积量估测的最优多元线性回归模型。
In volume 25, page 934, column 2, the encyclopaedia states that the European bison, or wisent, may be found only in the Bialowieza Forest in Poland, which is also incorrect.
《大英百科全书》第25卷934页第2栏中写到,欧洲野牛仅在波兰比亚沃维耶扎森林生活,这一点也是错误的。
For example, if you like wood, Hyperion is not the biggest tree in the world. By volume, there are bigger hunks of living wood in the California forest.
比如说,如果你喜欢木头,和伯龙神不是最大的树,从体积来看,加州有更大的树……(学会插图片了……)。
The forest is fed by the Amazon river, the largest river in the world by volume, which also has the biggest drainage basin on the planet.
亚马逊河蜿蜒纵横,作为世界上流量最大的河流,造就了地球上最大的流域。
Between 2003 and 2008, China's forest coverage registered a net increase of 20.54 million hectares and forest stock volume rose by 1.123 billion cubic meters.
2003至2008年,森林面积净增2054万公顷,森林蓄积量净增11.23亿立方米。
A series of vertical wooden fins create natural shading for the shed interior and creates a consistent pattern that defines the entire shed volume as a built forest.
一系列的垂直鳍状木结构为木棚室内提供了自然遮荫,并创建一个木棚与森林交相辉映的图案。
On entering the building, the volume of the sports hall is clearly visible from the entrance, surrounded by the vertical timber members that create the look of a forest clearing.
当人们走进建筑,从入口处就可以清晰地辨认出体育场的体量,建筑由竖向的木材板围合而成,仿佛是进入森林一般。
"The house was planned as a compact volume that could be located in the existing forest glade," said the architects.
“为了让建筑安置在林中的空地,我们将住宅规划成集中的体量,”建筑师说。
On the other hand, the area of usable forest and the volume of standing timber in one unit area are descending sharply in our country, which aggravates the labor intensify impersonally.
但另一方面,我国用材林面积和单位面积上森林蓄积量都在锐减,这就在客观上增加了伐区区划和主伐调查设计的劳动量和劳动强度。
Console volume of the library that is facing untouched forest is almost floating among the trees.
面向原始森林的图书馆像漂浮在树丛中。
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。
In the survey of forest management previously, the statistic relationship between the photo interpretation volume of the plot and the practical measurement is based on the classical principle of MLS.
以往森林经理调查中,航片判读小班蓄积与地面实测蓄积之间的统计关系多建立在经典的最小二乘原理之基础上。
Based on the data of forest resources inventories of Henan Province in 2003, forest biomass carbon storage is estimated using regression equation between biomass of various tree species and volume.
利用2003年河南省森林资源清查资料,建立不同优势树种生物量与蓄积量之间的回归方程,对河南省森林的碳储量进行了推算。
Method for estimating biomass and net production of forest vegetation from stem volume of stand was proposed in this paper, and biological production all over China was estimated by using this methed.
利用森林蓄积量推算森林生物量和净生产量的方法,系统研究了我国森林植被的生物生产力。
Afforestation by water-harvesting improves the soil water environment in forest owing to increase of runoff volume collected in the planting strip, so that the productivity of forests is influenced.
集水造林通过增加植树带汇流量改善了林地土壤水分环境,从而影响到林分物质生产水平。
It also shows low unit stock volume, unreasonable forest age structure, low forestland use ratio and severe pest, disease and rat disaster.
该流域森林资源有限且分布不均;单位蓄积量低,林龄结构不合理;林地利用率不高,病虫鼠害严重。
The forest ecosystem externalities feature large volume, space-time transfer, continuance and complexity.
森林生态效益外部性具有数量庞大、时空转移性、持续复杂性等特征。
Under same growth conditions, there would be relative higher volume and productivity in coppice forest than in seedling crop of Robinia pseudoacacia.
与实生林相比,在相同的生长条件下,萌生林具有较高的木材量和生产力。
The standing tree volume, stand stocking of riparian forest stand, number, average volume and total stock of in-stream LWD at streams in Liangshui were greater than that of Maoershan.
凉水溪流河岸带森林立木材积、林分蓄积及溪流倒木数量、平均倒木体积和总倒木蓄积量均高于帽儿山溪流。
Stock volume which is an important factor in forest resources investigation can't be obtained directly by remote sensing image.
蓄积量调查是一个不可见的被估测因子,无法直接利用高空间分辨率卫星影像。
We took different forest types with different standards into account when dividing by stocking volume per unit area. Therefore, we should consider forest types as an indicator standard further.
在单位面积蓄积量的标准划分时充分考虑到了不同林型标准不同,进而分林型进行指标标准的划分。
The results showed that forest harvesting resulted in increase in soil volume weight, lessening porosity, and decline in function of water holding.
结果表明:森林采伐后土壤容重增大,孔隙度减小,土壤持水性能降低。
By means of measuring integrated factors of growth volume, selected and bred 5 elite clones introduced from 36 clone Larix kaempferi in Liaoning Forest Management Institute which covered by 13.9%;
通过测定生长量综合因素,从辽宁森林经营研究所引进的36个无性系中,选育出优良无性系5个,占13·9%。
By means of measuring integrated factors of growth volume, selected and bred 5 elite clones introduced from 36 clone Larix kaempferi in Liaoning Forest Management Institute which covered by 13.9%;
通过测定生长量综合因素,从辽宁森林经营研究所引进的36个无性系中,选育出优良无性系5个,占13·9%。
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