土壤物质

方法通过添加人参提取物和根际土壤物质培养愈伤组织方法研究人参化感作用，通过酶联免疫法分析生长激素（IAA）探讨对抑制生长的机制。

Methods Ginseng allelopathy was studied by adding it 's extraction and rhizosphere soil material to cultivate callus ; The mechanism of IAA in inhibiting the growth was analyzed by enzyme & linked immunosorbent assay .

纤维质有机土壤物质金寨县农田土壤有机质含量状况分析

Analysis the on Content of Agricultural Soil Organic Matter in Jinzhai Country

在沙漠化的环境演变过程中，土壤物质含量显著改变。

Soil composition varies significantly in the processes of environmental changes caused by the desertification .

鄂湘两省黄棕壤、红壤和棕红壤对磷的吸附特性、高粱幼苗的供磷效果及其与土壤物质组成关系的研究。

The phosphate adsorption characteristics , effect of supplying phosphorus to sorghum seedling and their relation to the constituents of soils distributing in Hubei and Hunan provinces were studied .

另外，对于钛对植物的生理作用、存在形式、运输过程，以及植物对钛的吸收、与土壤物质和肥力性质间的关系等，还缺乏系统的研究。

In addition , there is no systemic study about titanium on the physiological action of plant , existence forms , transformation process and the correlation between absorption by plant soil substance and fertility character .

弄清碳酸盐岩红色风化壳中稀土富集和分异的机理，有助于丰富稀土表生地球化学知识，同时也为喀斯特地区风化成土地球化学过程和土壤物质来源的示踪提供了重要依据。

Studying the mechanism about the enrichment and fractionation of REE , will help to enrich the knowledge about the geochemistry and provide the important evidences about weathering and pedogenesis of carbonate rocks and the provenance of the red residue .

各种土壤改良物质都能不同程度的降低土壤pH，且随施量的增加pH呈下降趋势，以硫酸铝最为明显。

A variety of soil ameliorants could reduce pH value with the quantum increasing , pH value showed downward trend , especially aluminum sulfate .

本文采用反王水压力消解罐消解，原子吸收分光光度计测定了土壤标准物质和待测样品中Cu、Pb、Cr、Cd等元素的含量，并进行了加标回收试验。

In this study , concentrations of Cu , Pb , Cr , and Cd in soils and standard soil materials have been determined by AAS after the soils were digested using reverse aqua regia method in high-pressure pot .

大气-植被-土壤之间物质和能量输送过程与机制的分析

The course and mechanism of substance and energy transport among atmosphere-vegetation-soil

环境背景值调查研究土壤标准物质的研制

The development of soil reference materials for environmental background study

西北黄土地区土壤腐殖物质的研究

Studies on humic substances of soils in loess area of Northwest China

农药与土壤腐殖物质的结合残留及其环境意义

The association of pesticide residues with soil humus and its environmental significance

环境土壤标准物质的研究与制备

Study and Preparation of Environmental Soils Standard Reference Materials

不同土壤改良物质对越桔叶片酶活性影响的研究

Effect of Application of Different Soil Amendments on Enzyme Activity in Blueberry Leaves

落叶松人工林土壤腐殖物质组分及其对酸度的影响

Component of Soil Humic Substances in Larch Plantations and Its Effects on Soil Acidity

土壤改良物质对盐渍化土壤改良的作用

Effect of Soil Ameliorants on Salinized Soil

杨树刺槐混交林下沙质土壤腐殖物质特性

Humic substances characteristics of the mixed plantation of poplar and black locust in sandy soil

黄土区土壤腐殖物质的化学性质及其与成土条件的关系

The chemical properties of humic substances of soils in loessial area in relation to soil formation conditions

土壤腐殖物质一直是土壤学和环境学领域的研究热点。

Soil organic matter ( SOM ) is always a research focus in the soil and environmental science .

陕北黄土丘陵区土壤中物质循环与粮食生产关系的研究

The Relation between Crop Yield and Material Cycle in the Soil in the Loess Hilly Regions of North Shaanxi

红壤性水稻土稀土组分与土壤特性物质的关系

Correlation between the components of rare earth elements and the soil characteristic materials in paddy soils derived from red earth

并对土壤营养物质进行了模糊聚类分析，为土壤评价、小麦生产营养诊断提供了可靠信息。

From above mentioned , we can get a lot of information about wheat production , soil assessment and nutrition diagnosis .

根系分泌物是植物与土壤进行物质、能量与信息交流的重要载体物质。

Root exudates are the carrier of material , energy and information among the plant roots , soil , and microorganisms in rhizosphere .

土壤有机物质的活性成分是对土壤养分、植物生长乃至环境、大气和人类有影响的有效物质。

It is considered that active soil organic matter had influence on soil nutrient , plant growth , environment , atmosphere and human kind .

3）母质中接种真菌微生物（青霉、木霉、曲霉及其混合茵）培养，探讨微生物对土壤腐殖物质形成及性质的作用意义。

3 ) cultivate the parent material inoculated fungus ( and their mixture ), discussed the function of the microbe to the formation and character of soil humus substance .

为阐明土壤腐殖物质的形成和转化机制和土壤有机培肥以及调控土壤肥力提供科学依据，也为土壤有机质化学和腐殖物质化学研究提供新的资料。

The objects are to provided scientific basis for clarifying the formation and transformation mechanism of soil humic substance , revealing the theoretical essence of Improving Soil Fertility by Organic Materials ( ISFOM ) and regulating soil fertility .

虽然胡敏素占土壤腐殖物质总量的50-80%，但目前对胡敏素的研究资料较少，主要是因为它较难提取、纯化和溶解，所以阻碍了我们对其化学组成和结构方面的研究。

Although it accounts for 50-80 % of the soil humic matter , humin is the least studied . The difficulty in extraction , purification and solubilization prevents the determination of the chemical composition and structure of humin .

其原因可能是由植被流入土壤的物质和能量的多样性和数量的增加，也可能是由土壤动物区系起作用的土壤微生境的多样性的增加造成的。

These effects may have been caused by an increased diversity and quantity of material and energy flows to the soil . They may also have been mediated by increased diversity of soil microhabitats via a stimulation of the soil fauna .

借助功能生态学的理论，提出了运用土壤的特征物质（CM）和特征时间（CT）区分土壤类型的新方法。

Based on the theory of functional ecology , a new method for distinguishing soil types according to its characteristic mass ( CM ) and characteristic time ( CT ) was presented .

通过土壤中污染物质含量与土壤理化性质参数间的相关性分析及各种现代仪器分析手段，探讨了HCHs和DDTs在场地土壤中的分布、迁移和降解规律。

The distribution , migration and degradation rules of HCHs and DDTs were obtained through the correlation analysis between the contents of pollutants and the physicochemical properties of soils , and by using various modern instruments .