查询词典 soil

The studys object is bitch forest .spruce forest ,fir forest, chrysanthemum alp, willow community and two couch grass, so the research of the soil microorganisma,soil enzymatic activity in the subalpine coniferous forests in western Sichuan is significant to china .

因此，开展对川西地域中独特的生态环境中土壤微生物群落、以及与碳氮循环有关的土壤功能微生物数量和酶活性等的分布特征研究，进一步揭示川西亚高山植物群落的生态学过程已成为一项重要的研究课题。

They urged "a rapid shift, whenever and wherever conditions permit it, to management systems based on minimal soil disturbance, increased soil cover, and appropriate crop rotation".

他们敦促，"无论何时何地，只要条件许可，应迅速向以最低限度干扰土壤，增加土壤覆被和适当的作物轮作为基础的管理系统转变"。

Results indicated that soil lithology, rock cranny and soil structure had a certain impact on quality of megranate.

结果表明土壤母质岩性、母岩裂隙、土壤结构对石榴品质有一定的影响。

Tractors used in the experiments were wheel tractor, crawler tractor and holder/ walking tractor. The influence of soil compaction on wheat growth and soil structural discontinuity was discussed.

试验所使用的耕作机械包括轮式、履带式和手扶式三种拖拉机，分析了土壤压实对小麦生长以及土壤结构不连续性的影响。

The terrestrialand aquatic environmental impacts of veterinary drugs was expounded both on terrestrial environmental impacts of veterinary drugs upon plants, soil animals, soil microorganism and protozoa, and ecotoxicity of veterinary drugs to plankton, microorganism, fish and Crustacea.

综述了兽药对陆生和水生生态环境影响方面的研究进展，探讨了兽药对陆生植物、土壤动物、土壤微生物与原生生物等陆生生态环境的影响及对浮游类生物与微生物、鱼虾与水体甲壳动物等水生生态环境的影响及其生态毒理效应。

Biomass and soil organic carbon dynamics of Cryptomeria fortunei plantations at 5,10,17,22 and 26 years-old were studied at Pengzhou County,Sichuan Province,employing volume-biomass method and soil profile investigation.

以四川彭州为典型案例，采用材积源生物量法和土壤剖面分析方法，对栽植5、10、17、22和26年的人工柳杉林生物量及其土壤碳动态进行了初步研究。

With SPSS software to simulate the relationship between soil moisture content and soil depth,the correlation was obvious and the equation type was cubic parabola curve.

用SPSS统计软件进一步对土壤水分与土层深度的关系进行拟合，结果表明土壤水分与土层深度的关系具有极强的相关性，其关系方程为拟和三次抛物线型。

Soil with 1.2 g/cm3 bulk density was most favorable for the plant height and root growth of cucumber plants,and soil with 1.4 g/cm3 bulk density was most favorable for the stem thickness,yield and nutrient uptake of cucumber plants under this experiment conditions.

在本试验条件下，容重为1.2.g/cm3的土壤利于株高及根系的生长，容重1.4g/cm3的土壤则利于茎粗、根系养分的吸收及产量的增加。

In order to understand the ecological meaning of the microbiotic soil crust in agriculture and animal husbandry of the North interlocks and takes,this research took Yanchi of Ningxia as an example to carry on the survey of soil crust and vegetation,and go on the test of infiltration with crust and no curst.

为了解我国北方农牧交错带生物结皮的生态意义，本文以宁夏盐池为例，采用样线调查法进行结皮及植被调查，并在有结皮和无结皮覆盖两种情况下进行入渗试验。

As reinforced by cement, the soil's physical and mechanical properties could be improved much better. Meanwhile, the cement soil is economical, applicable and convenient to construct and it has many other merits. Hence, it applies far more in areas of base and slop stabilization, curtain for cutting off water, deep foundation ditch support structure and other projects.

因为土体经过水泥加固后，其物理力学性质能得到较好的改善，同时水泥土还具有经济适用、施工方便等优点，所以在地基加固、止水帷幕、边坡加固与稳定、深基坑支护等方面得到很广泛的应用。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。