每一层的厚度因不同的立地类型而不同。
The thickness of each layer is different for different site type.
本文研究了延安研究区不同立地类型的刺槐林地土壤含水量的变化。
Soil water changing of artificial Robinia perseudoscacia at different site conditions Yan an experimental area was studied.
本文研究了延安研究区不同立地类型的刺槐林地土壤含水量的变化。
Study on spatial diversification of soil moisture content of oasis and oasis-desert ecotone in the middle reaches of the Heihe River;
并分别立地类型、造林密度、林分年龄对这些指标的影响进行了研究。
And the effects of the site type, silviculture density and stand age on the above indexes are studied.
立地类型划分与抗逆树种选择是半干旱风沙区适地适树造林的技术关键。
The division of site type and selection of resistant species are key techniques to afforestation of matching trees with site conditions in semiarid sand area.
我们以杉木和马尾松为对象，研究了在相同立地类型中的树种代换评价方法。
This paper, taking Chinese Fir & Masson's pine as examples (objects), studied the site quality evaluation by the substitution of tree species in the same site types.
不同立地类型组的海拔、腐殖质层及坡向等各主要立地因子存在着显著的差异。
Main site factors in different groups of site type existed obvious difference, for instance the altitude, the thickness of humus layer and the slope.
其中，造林密度对木材造纸特性的影响不显著，年龄、立地类型均显著地影响造纸特性。
Site type and stand age can significantly influence the paper properties whereas silviculture density effect isn't significant yet.
利用118块野外标准地资料，对晋东南石灰岩山地油松人工林进行了立地类型划分及生长评价。
The division of site types and appraisal of growth were studied with data from 118 sample plots on Chinese pine in the calcareous mountain areas, Shanxi Province.
划分森林立地类型，综合评价林地质量，是适地适树，科学地进行营造林和预测森林生产力的基础。
Dividing the forest site type, comprehensive appraisal the quality of forest land are the bases to match species with the site, scientifically mange and afforest and predict productivity.
通过各树种在该立地类型上生长曲线的比较，评选出圣诞树、水冬瓜在3个生长因子上的生长速度最快。
Acacia dealbata and Alnus cremastogyne were selected as the species with quite fast growth on 3 indexes of tree height, ground diameter and crown mean width.
为使用方便起见，以信息量最多的第一主分量，编制核桃楸立地类型上层林分高表，应用于林业生产实际。
For convenience, the principal components with most messages are used in making an upper stand height table of the manchurian walnut site types which will be applied to the forest production.
研究结果：南岭山地(江西部分)划分为两个森林立地亚区，两类森林立地类型区，46个森林立地类型。
The results show that the Jiangxi part of NanlingMountainous area can be divided into two forest site distribution subregions, two forest site type regions and 46 forest site-types.
研究地区共划分为12个类型，编制了立地类型表，并采用热量、水分、养分三段式命名法为备立地类型命名。
According to the results, the region was classified into 12 site types at a fixed similarity level, which were named by three-section name method (heat, water and nutrient).
主要依据适地适树原则及工作的具体需要进行造林设计，划分了造林地主要立地类型，并制定了林分改造年度计划和造林地类型表；
Mainly according to the rules of suitable trees and suitable sites and the work need, authors divide the stand types, then design the yearly stand rebuilding plans and stand types tables.
根据金沙江流域防护林建设的需要，在会泽县头塘小流域的4种不同立地类型内，进行了7个树种的生长和防护功能对比试验研究。
In Toutang small watershed of Huize county, contrast test and research were carried out on growth and protective function of 7 species in 4 different site types.
结果表明，立地类型与林分生长关系十分密切，泥炭性风积沙土最适宜这3个树种生长，水化性风积沙土和不均一性风积沙土相对不利于这3个树种生长。
The results showed that the growth of stand is closely related with the site types. The sandy soil deposited by wind is most suitable for the growth of 3 species.
同时针对不同钻头类型提出地层相对可钻性的概念，并建立地震层速度预测地层可钻性的方法。
To bring forward relatively drillability conception to different drill bit style contemporary, and build they way to predict formation drillability by earthquake wave rate.
文章论述了建立地方文献数据库在西部经济开发中的作用、途径及问题等，说明了数据库的信息源、类型。
The article discusses the role, paths and problems of establishing regional documents in developing the western economy, explaining the information sources and types in database.
依据大量的调查资料，应用有序样本聚类方法，按林分类型、立地条件和林龄来确定次生林改造生长量划分标准；
Based on a large amount of investigating data, the authors use cluster analysis method with ordered samples to set dividing standards for the growth rate of secondary forests rechange.
对内蒙古敖汉旗大五家流域具有代表性的不同林地类型下以及不同立地条件下的土壤蓄水能力进行了测定和对比研究。
In this article, soil water storage capacity and availability of different vegetations in the northern of Ziwuling secondary forest region were studied with moisture retention curve.
提出决定褐环粘盖牛肝菌等菌根食用菌子实体能否发生和发生最大产量的根本因素是共生树种类型、立地、林分结构、土壤；
It pointed out the main factors determining the growth of fruit bodies of the edible fungus Suillus luteus and the greatest yield were accompanying tree species, site, forest stand structure and soil;
提出决定褐环粘盖牛肝菌等菌根食用菌子实体能否发生和发生最大产量的根本因素是共生树种类型、立地、林分结构、土壤；
It pointed out the main factors determining the growth of fruit bodies of the edible fungus Suillus luteus and the greatest yield were accompanying tree species, site, forest stand structure and soil;
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