Soil organisms as well as enzyme activities perform important functions in soil, including structure improvement, nutrient cycling, and organic matter decomposition and retention.
土壤生物和酶活性在改善土壤结构、养分循环、有机质分解和保持中起重要作用。
The results show that the consideration of the inhomogeneous soil results in reductions in the impedance functions, especially in the imaginary parts.
分析结果表明:水平方向不均匀土使得箱形基础的各种阻抗均降低,特别是阻抗的虚部。
The design principles, system structures, system functions, system characteristics and operation environments of Agricultural Soil Water Engineering Information system (ASWEIS) have been introduced.
介绍了农业水土工程学科信息管理系统(asweis)的设计原则及系统的结构、功能、特点和运行环境。
Soil water ACTS important circulating and regulating functions in the course of "four-water" transforming circulation.
土壤水在“四水”转化循环过程中,具有重要的循环和调蓄功能。
Soil water infiltration is a critical component of field water circulation, and Numbers of infiltration models with different properties and functions were established.
土壤入渗是田间水循环的重要组成部分,国内外学者提出了具有不同特点和用途的入渗模型。
As a main group of animals in the soil, the earthworms play important functions in ecosystem.
蚯蚓是土壤中的主要动物类群,在生态系统系统中具有重要的功能。
Soil is a vital and finite resource on earth critical to maintenance of the functions and sustainability of the terrestrial ecosystem.
土壤是维持陆地生态系统功能和持续性的至关重要的有限资源。
Soil environmental capacity is the maximum tolerable amount of pollutants inputed into a soil ecosystem, which still maintains its normal structure and functions.
土壤环境容量是输入土壤生态系统污染物的最大允许负荷,此时该系统仍保持正常的结构和功能。
The major observation items are the effect of the belt to the small range climate of the farmland, drainage and soil improving functions of the belt.
主要观测护田林带对农田小气候的影响、林带的排水作用以及改土效果。
It's generally accepted that the forest has the functions of cooling off the global temperature, refreshing the air, preserving soil and water, protecting the nature links and so on.
人们普遍认为森林具有降温、净化空气、保护水土和维持自然链等功能。
Roots serve two important functions. They give a tree stability, enabling it to stand in fierce storms, and they provide nutrients from the soil.
根有两大重要功能,就是令树木坚固稳定,好能抵御暴风,以及汲取泥土的养分。
Authors introduce characteristics, functions, design and construction technologies of inorganic binder gravel base in soft soil foundation of high_grade highway.
本文介绍无机结合料砂砾基层的特性、作用及在高等级公路软土地基中的设计施工技术。
Therefore, it is very necessary to take some pertinent and fine measurements of soil and water conservation in order to guarantee the functions of landscape region.
因此,需要采取特别精细、具有针对性的水土保持防治措施,保障景区两种功能的正常发挥。
While level terrace had the functions of conserving soil and water storage, it increased the possibility of the soil pollution too.
水平梯田在具有蓄水、保土的功能的同时,也增加了土壤污染的可能性。
The displacement functions of infinite soil piece are given as the product of analytical functions in vertical and radial directions and piecewise polynomial in the angular direction.
无限延伸的土体介质片的位移函数沿竖向及径向取用解析函数,而沿周向采用分片多项式。
Subsoiling ploughAn automatic agricultural machinery with various functions. Made up of frame, pole, plough share, soil separating board, leading bogie and strengthening tie bar.
一种自动多功能深松犁属于农业机械,由架体总成、犁柱总成、铧片、分土板总成、导向架总成和加强拉杆总成组成。
Based on COMGIS technology, a GIS for the simulation of soil erosion of Dongzhen reservoir watershed has been created, which has the functions of data management, spatial analysis and visualization.
根据组件式GIS技术构建了东圳水库土壤侵蚀模拟GIS系统,该系统可以实现数据管理、空间分析、模型运算功能。
Based on Biot's dynamic theory, the method of complex variable functions is used to solve the problem of scattering of elastic waves by circular cavity with lining in saturated soil.
运用复变函数法,在Biot波动理论的基础上,对饱和土中的圆形衬砌结构进行分析。
Turf is generally used in the city and in the path construction projects, because it has the functions which maintain water and soil, beautify the environment, fresh air and so on.
草坪由于具有保持水土,美化环境,清新空气等作用,在城市,道路建设工程中普遍采用。
Wetlands Rave peculiar hydrological regulating functions due to their peculiar soil hydro-physical properties and special geographical sites in a watershed.
湿地在流域中由于特殊的水理性质和地理位置而具有特殊的水文调节功能。
The functions of SAPs were brief reviewed, such as the ability of improving soil structure and water retention, inhibiting water evaporation, promoting crop growth and output.
高吸水树脂可以通过抑制水分蒸发,增加土壤含水量以及改良土壤结构等方面,起到保水和促进作物生长发育以及提高产量的作用。
The observation of settlement change and soil pressure distribution shows that the cement soil pile functions through pile-soil coadjustment and interaction.
沉降变形、土压分配观测表明,粉喷桩是通过桩土间互相协调共同作用的。
Broad-leaved forest has important and no-substitutive functions in water conservation, conserving soil and water, regulating the climate and improving the environment.
阔叶林在涵养水源、保持水土、调节气候、改善环境等方面具有十分重要的、不可替代的作用。
Then, the influence functions of water, prestressed anchor and cement-soil retaining wall and front small-piles in the compound soil nailing system were studied. The corresponding formulas were given.
研究了水、预应力锚杆(索)、水泥土搅拌桩以及超前微桩对复合土钉支护时土体稳定性的影响作用并给出了相应的计算公式。
The permeability coefficient and pore-water pressure relationship, and the soil-water characteristic curve are represented using exponential functions.
指数函数可用来表达水力传导率和孔隙水压力的关系,及土水特征曲线。
The permeability coefficient and pore-water pressure relationship, and the soil-water characteristic curve are represented using exponential functions.
指数函数可用来表达水力传导率和孔隙水压力的关系,及土水特征曲线。
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