natural soil
[土壤] 自然土壤;底土,原土;天然污垢
2026-03-21 21:47 浏览次数 13
[土壤] 自然土壤;底土,原土;天然污垢
As the management term of pure bamboo stands prolonged the natural soil fertility declined, which resulted from the growth characteristics of pure bamboo forest and the management methods.
毛竹纯林随经营期的延长,其土壤的自然肥力呈下降趋势,这是毛竹纯林的生长特性和经营方式决定的。
Town continued to be the original natural soil vegetation on the ground floors of buildings and non-replacement of water permeability, water permeability survey was increasingly respected.
城市的原有天然土壤植被不断被建筑物及非透水性硬化地面所取代,透水性铺装被日益推崇。
Since the natural soil mass of Tongliao power plant cant be served as natural foundation for main buildings, the soil mass of Tongliao power plant has to be treated.
通辽电厂地基条件不能满足主要建筑物采用天然地基的要求,需要进行地基处理。
For some routes, traffic volume may be so low that no surfacing is economically justified and natural soil serves as the roadway.
对于一些线路,交通量可能会很低以至于不用路面在经济上都是合理的,天然的土壤就可以直接为道路服务。
The result showed that 2 strains(0108 and 0110) were screened out via sterile soil and natural soil in pot experiments which had better control effect to pepper phytophthora blight.
结果表明,经无菌土纸钵初筛和未灭菌自然土盆栽复筛试验,从108株辣椒疫霉拮抗放线菌中筛选出2株防效最佳的拮抗放线菌0108和0110。
Between the stone cage and natural soil in the permeable cloth cushion, such as fabric, are very effective for most gabion material structure.
在石笼和天然土居之间布可透水的垫层,如土工织物等,对大多数格宾石笼结构来说都是十分有效的。
This layer must be at least 0.3 m thick and must be constructed of natural soil materials, although the layer may contain process materials such as bentonite or synthetic materials.
该层必须至少有0.3米厚,使用自然土壤材料建造,即使粘土层可能含有加工材料,如膨润土或合成材料。
Loess cave dwellings are rooms built by making use of natural soil characteristics.
黄土塬上黄土窑徐志贤黄土窑,即窑洞,是利用生土的特性创造的一种居室。
In terms of the analysis of mineral components and chemical elements, natural soil has no difference from artificial soil, which states the rationality of artificial soil technology.
我们再从矿物成分和化学元素分析的角度来看,天然土壤与人造土壤没有什么差别,这就是人造土壤技术的合理性之所在。
The study shows that natural soil types have such a high infiltration capacity, that no significant sealing effects are obtained.
研究表明,天然土渗水性是如此之高,以致于起不到明显的隔水效果。
Through the comparison of test results of natural soil samples cut from different direction, the anisotropy of natural soils which becomes obvious as strain decreases is illustrated.
通过不同方向切样的原状土试验结果对比,反映了原状土体存在明显的各向异性,结构性引起的各向异性在应变越小时越明显。
Compared with natural soil and water loss, urban soil and water loss has the features of artificiality, complexity, seriousness and regulation.
与自然水土流失相比,城市水土流失具有人为性、复杂性、严重性和可调控性等特点。
In the second half of 2001, I collected 21 samples in Liaoning Province, among which No. 1 sample is a natural soil from Niuzhuang, Haicheng City, used as reference system to other samples.
2001年下半年,我在辽宁省境内采集21个样品,其中1号样品是海城牛庄的天然土壤,作为整个试验的参照系。
Rain Court usually built in low-lying areas, through the replacement of natural soil or artificial soil and planting green plants, small area elimination on the convergence of the initial rain.
一般建在地势较低的区域,通过天然土壤或更换人工土和种植植物绿化、消纳小面积汇流的初期雨水。
The Numbers in the natural soil were less than those in the sterilized soil.
并且都能够在自然土和灭菌土中定殖,自然土中的菌量低于在灭菌土中的菌量。
Actinomycete population and their relations to soil nutrients were studied by normal methods in several natural soil samples collected from the eastern part of the Qinghai Tibet Plateau.
采用常规方法研究了青藏高原东部几种自然土壤中放线菌区系及与土壤养分的关系。
The acute toxicity of dichlorvos, chlorpyrifos and their mixture to earthworms were studied by two methods(the filter paper method and the natural soil method).
采用滤纸接触法和自然土壤法研究了毒斯乐对自然蚯蚓的急性毒性。
According to wave theory of elastic half - space, the formula of dynamic stiffness in natural soil is given.
本文由弹性半空间的波动理论,导出天然地基动力刚度系数理论公式。
Artificial soil and water loss is the main aspect whereas the natural soil loss is only the secondary position in urban soil and water loss.
自然流失是城市水土流失的次要方面,城市建设产生的人为水土流失是城市水土流失的主体。