土壤溶液

在对照土壤溶液的乙醚萃取物中检测到39个化合物，其中有7个化合物与水稻PI根系分泌物中化合物相同。

In the soil solution , 39 compounds were detected , and 7 of them were the same of the root exudates .

在玉米根系的影响下，土壤溶液Cd含量基本上随着玉米的不断生长而降低。

Due to root activities , Cd concentration in soil solution decreased with corn growth . Soil water contents affected the availability of Cd in soil .

温带森林土壤溶液溶解性N2O和CO2含量特征及其影响机制

Dissolved N_2O and CO_2 Concentrations in Soil Solution under Temperate Old-Growth Forest and Their Associated Mechanisms

结果表明：土壤溶液中Cr（Ⅵ）减少动力学过程可以分为二个步骤，第一步为快速反应，它主要由吸附反应所控制；

The first step is a fast reaction depending mainly on the rate of Cr (ⅵ) adsorption .

不同分隔/间作方式对作物根际土壤溶液Pb、Cd含量也有一定影响。

Pb and Cd concentrations in rhizosphere soil solutions were also affected by intercropping systems or separation modes .

pH、温度和水土比对酸性土壤溶液中铝离子形态分布的影响

Effect of pH , Temperature and Ratios or Water to Soil on Distribution of Al ~ ( 3 + ) Species in Acid Soil Solutions

土壤溶液中的有机氮被认为是林地生态系统氮素流失的主要形态，并且微生物和植物均可以直接或间接吸收利用SON，因此，SON在林地生态系统氮素循环中具有重要作用。

The SON is the potential source of dissolved organic nitrogen ( DON ), and DON is considered as the main N forms losing from forest ecosystems .

在植被生长季节土壤溶液中的养分含量略低，而土壤pH值略高，非生长季节则相反。

The content of nutrition in soil solution was high in the season of plant growing , and the pH was low . It was conversely in other season .

溶解性有机质（DOM）是土壤溶液中的一个重要的组成部分，在土壤化学和生物过程中起着十分重要的作用。

Dissolved organic matter ( DOM ) is an important component in soil solution , it have vital function on soil chemical and biological process .

在高Eh值（450mV）条件下，进入土壤溶液的硒在第一天70.9%呈Se（）态，且稳定；

At high redox potential ( 450 mV ), 70.9 per cent of selenium in soil solution exists as selenate at the first day , which is the stable species .

在低Eh值（175mV）条件下，进入土壤溶液的硒约有90%呈有机态，且较稳定；

At low redox potential ( 175 mV ), 90 per cent of selenium in soil solution exists as organic form , and is the stable species present in soil solution .

在低水力负荷率和较长停留时间的运行条件下，1.3m以下土壤溶液和地下水的P含量处于安全水平。

The P content of soil solution and groundwater below 1 3m soil horizon is in a safe level under the operation condition of the low hydraulic loading rate and the longer remaining time .

30cm深土壤溶液含盐量的变化也为灌水降低，未灌水时升高。

The salinity of soil solution 30 cm deep from the top also increases during the period without irrigation but reduces during irrigation .

60cm深土壤溶液含盐量变化幅度小于其上土层。

The salinity variation of soil solution 60 cm deep from the top is gentler than that of the overlying soil layers .

除Pb外，所有其他元素（Al、Mn、Sr、Mg、Na、K和Ca）在土壤溶液中的浓度都高于5个水文过程的平均值；

Except Pb , the concentrations of all other elements ( ie , Al , Mn , Sr , Mg , Na , K and Ca ) in soil water and stream water were higher than the average concentrations in the 5 hydrological processes ;

天然水体中水溶性有机碳比色法测定结果相当于TOC仪测定结果的81%，而土壤溶液中有机碳比色结果的趋势与TOC仪测定结果趋势一致。

The results of colorimetric determination in natural water are equal to 81 % of TOC analyzer . The trend of DOC by colorimetric determination is similar to that of TOC analyzer in soil extractant .

与羟矾石Basaluminite固相平衡的土壤溶液中铝形态分布的计算机模拟

Computer simulation of aluminum speciation in soil water equilibria with mineral phase basaluminite

研究表明，采用该方法测定土壤溶液和水体环境中水溶性有机碳含量是可行的，最突出的优点是无需价格昂贵的TOC仪，而且测定速度要比仪器快得多。

The studies show the feasibility of using this technique to determine the DOC content in soil solution and water environment , with outstanding merits of no necessity of the high price TOC analyzer and of much quicker determination than the analyzer .

土壤溶液中、下层NO3&N浓度（70、120cm）显著高于上层（30cm），尤其是在萝卜生长季。

NO ~ - _3-N concentration of soil solution at the depth of 70 and 120 cm was significantly higher than that at the depth of 30 cm , especially in the radish growth season .

结果表明，我国南方中强及中下强度的酸性土壤溶液中，无机单核铝主要是呈Al-F络合物形态存在，测定结果的相对误差在4%以内，且温度的变化对测定结果无明显影响；

The result indicated that the AL-F complexes were major inorganic monomeric aluminum for most acid to weak acid soil solutions in south China . The relative error of the results is within the range of 4 % . And the change of temperature exerts little influence on the results .

用土壤溶液提取器采集土壤溶液方法与效果

Method and Effect of Soil Solution Collection By Soil Solution Extractor

温度条件对麦田土壤溶液养分浓度的影响

The effects of temperature on the nutrient concentrations in soil solution

土壤溶液中亚铁沉淀的形成机理的研究

Study of the Formative Mechanism of Ferrous Precipitation in Soil Solution

土壤溶液和水体环境中水溶性有机碳的比色分析测定

Colorimetric determination of dissolved organic carbon in soil solution and water

有机物料影响下土壤溶液铜形态及其有效性研究

Forms and Availability of Copper in Solution of Soil Containing Organic Materials

裂缝对稻田土壤溶液中氮运移的影响

Effect of Cracks on Nitrogen Transport in Paddy Soil Solutions

土壤溶液中镉的化学形态及化学平衡研究

Chemical species and equilibria of cadmium in soil solutions

土壤溶液中铊存在形式的理论探讨

Study on Chemical Species of Thallium in Soil Solution

金橙Ⅱ法测定土壤溶液中烷基型甜菜碱同系物的研究

Determination of Alkyl Betaine-Homologous Compounds in Soil Solution Using Gold Orange ⅱ Method

排水分析不能正确地反映土壤溶液的组成。

Drainage water analyses may not indicate the composition of soil solutions accurately .