The coverage of vegetation can prevent raindrop erosion, the humus layer from falling branches and leaves not only improve the chemical and physical condition of the soil but also improve the stability of soil aggregate, increase soil permeability, and reduce surface runoff, effectively prevent the soil erosion.
植物覆盖於地表可以避免雨滴打击地面，防止土壤冲蚀；枝掉所形成的腐植层可改善土壤的化性质，促进土壤团稳定，增加土壤渗透性并减少迳，有效抑制土壤冲刷；又植物根系的锚锭作用，可有效控制浅层崩塌的风险。
And the difference of the soil compacting effects in the condition of large strain and small strain is analyzed.
对大应变假定情况下的土体位移场也做了相应的理论推导，并比较了大小应变情况下挤土产生的位移场差异。
Based on a thorough investigation of the engineering geological condition for the reservoir region of the Huizhou Pumped Storage Power Station, the in-situ trial pit water injection test, boring water injection test, and water pressure test were performed to study the permeability of rock and soil mass.
摘要在对惠州抽水蓄能电站库区工程地质条件进行详细调查的基础上，采用现场试坑注水和钻孔注水、压水试验等方法了解岩土体的透水性。
The 9 times of test on one soil sample in the same condition show that the method does not have exceptional data to be eliminated with the standard deviation 1.61 and variation coefficient 0.17. While the tests of to soil samples on their v0, v and K, reflect prominent relativity among them. The best concentration of c(H2O2) is 0.741 mol/L to measure CAT activity.
利用该方法对同一个土壤样品进行的9次重复实验结果表明，格拉布斯检验无剔除数据，标准偏差为1.61，变异系数为0.17，显示该方法简单、快捷、重现性好，精密度高；对20个土壤样本进行初始反应速度、最大反应速度、米氏常数测试的结果显示，它们之间的相关性显著，c(H2O2)=0.741 mol/L为最佳测试过氧化氢酶活性的底物浓度。
This paper systematically summarized and analyzed general development characteristics of soil profile CaCO3 in Loess hill gully area including source, content, forming-condition, distribution and illuviation- depth of CaCO3, which will have the most important significance for the further studies on global soil and climate change. Soil CaCO3 eluviation-illuviation is a relatively complicate process, soil CO2 is one of the important effect factors, which influences soil CaCO3 through controlling soil pH value and CaCO3 solution capability.
碳酸钙在土壤剖面中淀积的深度和类型是黄土高原土壤发育的重要标志，钙积层是黄土高原土壤发育环境的历史信息库，同时土壤碳酸钙作为土壤无机碳库重要组成，它通过溶蚀后再结晶与大气CO_2之间进行物质交流来影响全球气候变化。
By the method and procedure in this paper, the stress and strain of supporting structure are studied under the condition of different heaped load, excavation depth, excavation separatrix location and soil mass condition.
利用本文的计算方法及程序，分别计算分析了外加荷载不同、开挖深度不同、挖深分界不同、两侧土质不同等四种情况下支护结构的内力和变形。
Based on the condition controlling soil water potential in the green house, the experiments were carried out within-photosythesis and water use efficiency of Casuarina species under the circumstance of wa- ter stress, by testing the indicators of chlorophyl content, chlorophyl A fluorescence, net photosynthesis rate and transpiration coefficient.
在温室条件下控制不同土壤水势梯度，从叶绿素含量、叶绿素 a 荧光、光合速率和蒸腾系数等方面，探讨水分胁迫下木麻黄苗木的光合作用和水分利用效率的变化。
Shrubbery has the capacity to enhance soil water conservation by a factor of a litter. At the incipient stage of eco-restoration, soil moisture under chestnut and pigeon pea is very much alike, being similar to that of bare soil When under creeping vegetation, slope soil moisture condition improves at a factor equal to that of grassland.
各土地利用类型间，灌丛类型由于枯枝落叶层而增强了土壤的保水持水能力；生态恢复林种植初期，土表接近于裸地，蒸发强烈，应采取一定的蓄水保墒措施；混种有匍匐类作物的复垦坡耕地，其土壤水分条件则与撂荒多年草地相似。
Soil dressing and amendment: piled trailing in the valley forms a regular plane and a basic condition for reclamation and reconstruction.
1、客土及改良：由于尾矿的堆积，将在山谷中堆砌出整齐的平面，形成复垦和生态重建的基础条件。
By the estimation of soil erosion in Miyun reservoir surrounding, most of erosion modulus of sample area is from 500 and 2500 t ·km~2 · a~(-1). The primary condition of soil erosion in this area can be regarded as slight erosion according to the national soil erosion grade.
通过对北京密云水库周边地区土壤侵蚀量估算，采样区中大部分土壤侵蚀模数在500-2500 t·km~(-2)·a~(-1)之间，按照国家土壤侵蚀等级划分标准为轻度侵蚀。
Through investigation on relationship beween larch pure crop needle cast condition and forest soil in county Yitong of province Jilin, getting conclusion: pure crop needle cast condition growing on white betonies is more serious than growing on deeply brown soil.
通过对吉林省伊通县落叶松人工纯林落叶病病情与林地土壤关系调查发现：生长在白浆土类土壤上的落叶松纯林病情明显重于生长在暗棕壤土类土壤上的落叶松纯林。
At the same condition, soil has a better adsorption treatment than coal slag.
在同等条件下，土壤对污染物的去除能力明显高于煤灰。
The best condition for grain development is to keep soil moisture at 70% of capillary water.
这一时期以保持土壤毛管持水量的70%左右对结实最为有利。
Directed against the problem on confirming vertical bearing capacity of large diameter cast-in-place pile in the west of coteau area of Yunnan province, the paper, analyses the influence degree of the variety of soil physics and mechanics property in area geology condition on bearing capacity of pile foundation, through 5 piles'loading test; the influence degree of construction technics on bearing capacity of pile foundation under the influence of every exterior factors; the influence degree of grouting injection around the pile shaft on bearing capacity of pile foundation.
本文针对滇西山区大直径灌注桩竖向承载力确定存在的问题，进行了5根试桩的静载荷试验，分析了区域地质条件下土的物理、力学性质的变化对桥梁桩基承载力的影响程度；地下水对桩承载力的影响程度；各种外部因素影响下，桩的施工工艺对桩承载力的影响程度；通过在桩体周围土中注浆对桩承载力的影响程度。
In this paper, a series of surveys on road condition, pavement-performance and destroy reason are analyzed, soil property, hydrologic regime are combined, modulus of resilience are confirmed on heavy compaction test, foundation classification in area of Qinhuangdao is divided into 3 grades and highway is divided into 3 districts according to the principle that different soil grades produce the same effect on thickness of base course or bottom course, Classification of traffic is divided into 4 grades after observation materials of traffic volumes are collected extensively, traffic characters and parameters are analyzed.
本课题在对现有路面结构状况和使用状况进行调查，并对路面使用性能和破坏原因进行分析的基础上，结合秦皇岛地区的土质、水文条件，确定重型击实标准条件下土基回弹模量值，依据不同等级土基对路面基层或底基层的厚度产生大致相同效应的原则，将秦皇岛地区地基强度等级划分为三级并将本地区公路分成三个区。
The concentrations of CODcr and NH4+ vary from low to high, then from high to low in the process of refuse leaching, that is to say that there are three phases which are aerobian decomposition, facultative aerobian and anaerobian decomposition; (3)The time of landfill reaching to stabilize under the condition of filtration, for landfill of Jinqianpu, is at least 86 years if CODcr is regarded as a index; but is about 98 years when NH4+ as an index; (4)The column leaching experiment simulated is carried on interactivity between leachate and different lithologic characters, water-bearing media of different thickness. Some parameters can be determined by calculation, such as, the retained factor and hydro-chemical transportation rate of pollutants in suspended media, which quantitatively analyse the suspended soil capability of components purification and the pollution scope of water bearing media.
垃圾淋滤过程中和经历了一个由低到高、再由高到低的过程，即垃圾填埋过程中经历了好氧分解、兼性好氧分解及完全厌氧分解等三个阶段；（3）垃圾组分在淋滤条件下分解达到稳定的时间，对于金钱堡垃圾填埋场，若以作为考核指标，填埋场达到稳定化时间至少需要86年；若以作为考核指标，则填埋场达到稳定化至少需98年的时间；（4）对垃圾浸泡液与不同岩性、不同厚度含水层介质之间的作用进行了土柱淋滤模拟试验，通过计算污染质在包气带介质中运移的阻滞因子和水化学迁移率等参数，定量地描述了包气带土层对污染质的净化能力和污染范围。
As compared to 25% of the saturated condition of soil of soil moisture, and moisture, soil loss from soil moisture saturated condition, 75% of the saturated condition 50% of the saturated condition of soil moisture were 50, 25, and 1.3 times greater, respectively.
而对于供试土壤为杨陵蝼土，当前期土壤含水量分别为饱和土壤含水量的100％和50％时，其径流量分别是占饱和土壤含水量的25％时的1.1和1.0倍，其侵蚀产沙量分别为6.5和2.0倍。
2MCX-1100 precision bed making machine adopts a division-based soil particle size former, realizing refined performance of soil, therefore solving such problems as large power consumption of old machines, unreasonable soil distribution on the bed, serious problem of rotary cultivation parts being wound by grass or weed and soil retained by the lower pull rod of the suspension frame, which provides sound soil condition for seedling cultivation and transplantation.
2MCX-1100型精细筑床机采用土壤颗粒大小分区成形装置实现土壤精细作业，解决了我国现有机型存在的消耗功率大、床体土壤分布不合理、旋耕部件缠草以及悬挂架下拉杆挡土等问题，可为育苗播种和苗木移植作业提供良好的土壤条件。
For improve site soil condition and ensure piling work safety, we have worked out dewater construction proposal.
为改善现场施工的场地条件，保证压桩工程的安全进行，编制降水工程的施工方案。
The state of aggregation of soil and its condition for supporting plant growth.
成片的土地而且适合植物的生长。