土壤性质

The formation of the acid precipitation had correlation with the quality of atmosphere, tail gas of motor vehicles and soil quality together.

结果表明，长沙市的酸雨冬、春两季较为严重，酸性降水的形成与环境空气质量、机动车尾气、土壤性质等多种因素有关。

The objective of this research is to investigate the growth situation of taiwanfir area, cryptomeria area and exposed area. Factor analysis and geoststistics methods are used to study the factors influencing different forest aspect and the impacts between factors. Furthermore, the variation curve of each factor will be described.

中文摘要本研究以溪头地区台湾杉、柳杉及崩塌地三种不同植生状况进行探讨，利用因子分析及地理统计方法加以讨论不同林相之土壤性质影响因子及因子间相互影响关系，并对於各项因子的影响变化趋势进行说明。

Because of the different hydrothermal conditions, it resulted in significant differences in soil properties.

不同耕地类型由于水热条件的不同，造成土壤性质明显差异。

The research results will benefit the understanding the effect of intensive agriculture on soil property variability, to realize regional sustainable agricultural development and precision farming.

研究结果为分析集约化农业对土壤性质变异演替的影响规律、实现区域农业可持续发展和精确农业奠定基础。

It is very important to study on the soil property and its spatial variation for reclamation and reutilization of mining subsided land.

开展采煤沉陷区耕地土壤性质变异规律研究，对于指导矿区土地复垦具有十分重要的意义。

The effect of varying soil properties on axial seismic response of buried pipelines is studied considering the interaction between the pipe and the soil.

考虑管线与土壤之间的相互作用，研究了土壤性质改变对埋地管线轴向地震响应的影响。

The effects of soil properties on the distributions of thorium fractions were investigated.

考察了土壤性质影响着钍的形态分布。

According to the sensitivities of variance coefficients and relative range of soil properties, we found that nitrate, available phosphorus, labile organic matter, urase, invertase, and organic matter can be used as the assessing index, which can evaluate soil quality under various re-vegetation ecosystems in the Loess Plateau.

根据变异系数和相对极差的敏感性发现在定量评价黄土高原不同植被恢复生态系统土壤质量时，可选择硝态氮、速效磷、活性有机质、脲酶、蔗糖酶和有机质等极敏感和高度敏感土壤性质作为评价指标。

The findings show that with the prolonging history of Phyllostachys praecox cultivation,the properties of soil have changed greatly.

结果表明：随着雷竹栽种历史的延长，土壤性质发生了明显变化。

Further studies on biodiversity in the reforested land showed that shrub diversity increased but herb diversity decreased with reforested time. The evenness index changed little.

该流域人工林恢复结果表明，林龄的增加，土壤性质变化比较大，总氮含量与种植年龄呈现十分好的线性正相关，土壤质量也有较大的改善。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐