壤

其中，上壤呼吸释放CO2是大气温室气体CO2的重要来源，也是描述土壤生物活性和土壤肥力的重要指标。

Soil was the important source of atmosphere CO2 , and soil respiration was also an important index of soil fertility and soil biological activity .

本试验利用~（32）P示踪法研究赤红壤上两种有机物料与过磷酸钙混合施用对磷有效性的影响。

The pot experiments were conducted to study the availability of phosphorus from ~ ( 32 ) P-labelled superphosphate , hog manure , bagasse and their mixtures to stylosanthes guianensis CV . graham on latored soil .

用~（14）C标记化合物研究了甲苯在上壤中的吸附、迁移及残留等行为。

The adsorption , migration and persistence of toluene in soils were studied using ~ ( 14 ) C labeled compound .

赤红壤表土育苗施石灰后施P、Zn、B对巨桉苗生长的影响

Effect of Lime , P , Zn and B Nutrients on Growth of Eucalyptus grandis Seedlings on Latored Surface Soil

由十壤侵蚀引起的土壤有机碳（SOC）再分布过程依然是争议的话题。

The fate of SOC redistribution caused by soil erosion is a controversial subject .

在相同处理条件下，苄嘧磺隆除草剂在土壤中的降解半衰期与土壤的pH值呈正相关，土壤pH值越高，其在士壤中消失的就越慢，半衰期就越长。

Under the same treatment , the half-life of bensulfuron-methyl herbicide degradation showed significant difference because of different pH values among the soils .

雷州半岛白骨壤自然种群遗传多样性的ISSR分析

ISSR Analysis on Genetic Diversity of Avicennia marina Populations in Leizhou Peninsula

结果表明，在pH值<4.5条件下，去除氧化铁可使土壤对Al的吸附量有所增加，这种变化在赤红壤中尤为明显；

Results show that under the condition of pH < 4.5 , removal of Fe oxide soil could increase the amount of aluminum adsorption by the soils .

在再现成壤环境及沙尘暴活动时，粒度、磁化率、碳酸钙和土壤pH值这四项指标有着较好的指示意义，而且各指标之间对应良好。

Thirdly , in reproducing pedological process and sandstorm activity , grain - size , magnetic susceptibility , Calcium carbonate and pH value of soil four indexes have good instructions .

通过j从化成壤作用后，古土壤层和黄土层的REE含量发生了微弱的分异。多层平坦化互连技术

After weathering , the REE concentration of paleosol is little larger than the one of loess . The Technology of Multi Layer Flatting Connection

荣昌R1样品Ba元素含量高于其他地区样品，Ba元素是区别士壤地质的重要依据。

Ba elements in Rongchang R1 sample is higher than other regions samples , Ba element is one important basis of distinguish soil geology .

不同处理下淋溶五次以后，棕红壤淋出液pH低于黄棕壤，可能与土壤pH与CEC含量有关。

After five leaching , leaching solution pH of brown-red soil was lower than yellow-brown , which may be related to the content of pH and CEC in the soil . 3 .

比较两种质地土壤，在相同容重下在砂壤中PCE的饱和度较重壤土中的大。

The PCE saturation in clay sandy was higher than that in the clay loam at the same bulk density .

又因DGF方法比较适用于严格分层媒质，而月表并非严格双层结构，因此在月壤厚度评估中，选用RT方法对月壤厚度进行评估比较合适。

After comparing the inverse results from different method , RT method is chose to estimate the thickness of lunar soil .

插壤水分管理标准是PF值2，空气相对温度控制在85%以上，插床遮荫度控制在70%为宜。

And managed water index of cutting bed at PF2 , relative humidity over 85 % , shade density at 70 % could be as the optimal selection .

主要研究结果如下：1桂阳烟区水稻土和紫色土均为壤质粘土，pH呈碱性，红壤为粘壤土，pH呈弱酸性。

The main results are as follows : 1The paddy soil and purple soil were loamy clay in texture and their pH was alkaline , while the red soil was clay loam in texture and its pH was slightly acidic .

然而，黄土高原中部大多数剖面由于沉积速率较低（特别是S1地层），加上后期强烈的成壤作用和淋溶作用可能影响其气候记录。

But , low sedimentary rate in many profiles , especially in S1 , and following strong pedogenesis and eluviation would have effect on those climate records .

用磷脂脂肪酸（PLFA）技术分析汞对黑壤微生物群落的影响

Analysis of the Effect of Hg on Microbial Community in Black Soils of China by PLFA

地表存在较厚的残（坡）积覆盖层，应用壤中气汞量测量法寻找隐伏含Au构造蚀变带及金矿体。

There covered thick residual and slide rock layer on the surface , we can use the measurement method of gas mercury in soil to find concealed gold bearing tectonic alteration belts and gold deposits .

采用静态箱法研究了控释肥料和常规肥料处理对赤红壤稻田CH4排放的影响。

Study on the effect of four kinds of fertilizers on CH_ 4 emission from paddy field was carried out in lateritic paddy soil by using close chamber method .

运用15N尿素示踪技术，以壤质草甸棕壤和春小麦分别作供试土壤和作物进行盆栽试验。

By applying labeled urea into a loamy meadow brown soil , a pot experiment with spring wheat as test crop was carried out .

对化学风化指数（CIA）、K/Na比值、残积系数（Ki）等化学综合参数的研究结果显示，各项地球化学参数可有效指示成壤环境与成壤强度；

The chemical weathering index ( CIA ), K / Na ratio , eluvial coefficient ( Ki ) and A-CN-K diagram , can availably indicate the evolution of pedogenic environment .

选取U、Mo活动态中的黏土吸附态作为测量对象，在测区内共圈定壤中黏土吸附态U异常7个、Mo异常5个。

The clay-absorbed form in soil is selected as the object of determination of U and Mo in mobile forms , and seven U anomalies and five Mo anomalies of clay-absorbed form in soil are outlined in surveyed area .

结果表明：它们的失水规律一般是沙壤和轻壤采用125℃恒温2h；

The results indicate that the laws of their moisture losses are in general that the constant temperatures of 125 ℃ is adopted to sandy loam and light loam for two hours ;

通过室外盆栽接种试验，研究了PGPR接种对白骨壤Avicenniagermina幼苗抗寒性的影响。

Inoculation effects of PGPR strains on cold resistance of Avicennia germina seedlings were studied through the outdoor pot experiment .

原生Hg异常的研究有利于解释该地壤中汞气异常的形成。已经证实，壤中汞气测量对寻找这类矿床是有效的。

The research on primary Hg anomalies is useful for the understanding of the formation of Hg vapour anomalies in soil gas , which have been shown to be effective in prospecting for this type of deposit .

基于摩尔库伦模型和剑桥模型的研究，初步建立了模拟月壤的本构模型，结合模拟月壤、福建中级砂和ISO标准砂的静力三轴试验成果，对该本构模型进行验证。

Owing to the study of Mohr-colomb model and Cam-clay model , constitutive model of lunar soil simulant is initially established . With triaxial test results , it is proved that this model can accurately simulate its stress-strain relations . 3 .

利用模拟淋溶实验测定了中国几种土壤（砖红壤、赤红壤、红壤、黄棕壤和紫色土）的风化速率，并研究了土壤pH值和降水量对土壤风化速率的影响。

Through simulated leaching experiment , weathering rates of several soils ( including latosol , lateritic red earth , red earth , yellow brown soil and purplish soil ) in China , as well as the effects of soil pH value and precipitation rate on soils weathering , were studied .

对应于Q21红土期、北方S5成壤期、华北平原发生海侵事件和东部海平面上升。

Correspond to Q21 red earth period , north S5 period , sea water intrusion event in North China Plain and sea-level rose in eastern areas .

以典型月壤的物理力学性质为参照标准，采用颗粒流程序PFC3D对月壤静力学特性进行了离散元模拟研究。

According to its physical mechanics properties , the statics characteristic of lunar soil is studied using DEM software PFC3D .