Soil liquid phase composition /

副标题：无

作者：V.V. Snakin, A.A. Prisyazhnaya and E. Kov鈇cs-L鈇ng ; translated from Russian by A.O. Korsunsky a...

分类号：

ISBN：9780444506757

收录收藏 (0) 评论纠错

微信扫一扫,移动浏览光盘

简介

简介

The liquid phase of soil (soil solution) is a very thin, penetrating and all-embracing water layer. It has the mostextensive surface among the biosphere components and interacts with all these components. Presented in this work is a new complex approach developed for soil liquid phase investigation that is based on in situ measurements. Investigation of the soil liquid phase can be of great significance in environmental research.

This volume sums up the vast experience of the authors' research into soil liquid phase composition in various ecosystems of Central and Eastern Europe. It describes themethodological basics of soil liquid phase research: methods of soil solution extraction, the main problems of application of ion-selective electrodes for immediate in situ assessment of ionic activity in soil liquid phase and redox potential, and ways to overcome those problems. Data are presented on soil liquid phase composition in natural and agricultural ecosystems, their redox, pH, carbonate and other regimes as well as the relations between the composition of the soil liquid phaseand different ecological properties.

This work is devoted to the pursuit of new approaches to soil liquid phase analysis with a goal of discovering the role of soilliquid phase in the functioning of natural and agricultural ecosystems in recent soil-formation, formation of primary biological production, and in bio-geochemical turnover of elements. It includes new field investigation data as well as all data generalization carried out by means of a special complex database (developed by the authors) on soil liquid phase composition and other soil-ecological properties in various ecosystems in Central and Eastern Europe.

Thisbook is the first English edition that integrally considers both methodological aspects and results of investigation of composition, formation, dynamics, spatialheterogeneity, and interrelations of soil liquid phase with other components of ecosystems. Soil scientists, agricultural chemists and ecologists will find this title of great interest.

Introduction
Acknowledgments
Chapter 1 Soil Liquid Phase As A Structural Element Of An Ecosystem
Types of soil water
Pellicular water
Capillary water
Gravitational water
Soil liquid phase in environmental research
Chapter 2 Soil Liquid Phase Investigation
Methods of soil solutions extraction
Ionometric analysis of soil samples
Activity and concentration of ions
ISE selectivity coefficients
The influence of solid phase on ionometric measurements in soil
Influence of the gas phase on the ionometric measurements in soil (incomplete contact between the electrode and soil)
In situ measurements of ionic activity in soil
Compensation of temperature dependence in ion-selective systems
The selection of electrodes
Getting the electrodes set for work
The process of measurements in soil
Measurement of the soil redox potential
Comparison of different methods of soil liquid phase investigation
Laboratory methods
In situ measurements and displaced soil solutions
Soil solution, soil and plant analytical methods
Data base
Conclusions
Chapter 3 Study Areas
The environment
Climate
Vegetation
Soils
Chapter 4 Environmental Impact On The Soil Liquid Phase
Soil solid phase
Atmosphere and soil air
Hydrological regime
Temperature
Vegetation
Atmospheric precipitation and forest vegetation
Ecosystems and soil types
Anthropogenic factors
Field management and soil liquid phase composition
Soil resistance to acid rain
Soil liquid phase under recultivation
Conclusions
Chapter 5 Spatial And Temporal Properties Of Soil Liquid Phase
The composition of soil liquid phase
Soil redox potential (Eh)
pH properties
Calcium activity
Potassium activity
Nitrate activity
Spatial heterogeneity
Temporal variability
The estimation of the necessary number of collected data for the reliable determination of soil characteristics
Dynamics of the soil liquid phase
Sandy semi-desert steppe
The Middle Danube steppe
The Priazov steppe
The Colchid forest
Conclusions
Chapter 6 Material And Energy Exchange In Ecosystems
Soil carbonate equilibrium
Assessment of carbon equilibrium status
Atmospheric CO 2 and soil liquid phase
Soil liquid phase oxidation and pH as indices of ecosystem functioning
Oxidation-reduction in soils
The Eh-pH graph
Soil redox regime and grassland productivity
Thermodynamic interpretation of Eh changes
In vivo Eh measurements in animals
Potassium dynamics in the soil liquid phase
Potassium and nitrate in the liquid phase of agricultural soils
Silicon in soil solutions
Organic matter in soil solutions
Heavy metals
Correlation between soil solid and liquid phases composition
Conclusions
Chapter 7 Environmental Processes And Soil Liquid Phase
Photosynthetic intensity
Transpiration and evaporation
Plant matter dynamic
Ecological assessment of the degree of anthropogenic changes in soil
Soil liquid phase and ecosystem contamination
Conclusions
Summary
Glossary
References
Correlation Between Soil Names
Subject Index
Author Index

已确认勘误

页码	勘误内容	提交人	修订印次

Soil liquid phase composition /

Soil liquid phase composition /

已确认勘误

第次印刷 筛选

第次印刷