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Author: Rolf Nieder Publisher: CRC Press ISBN: 9781560229155 Category : Technology & Engineering Languages : en Pages : 800
Book Description
Learn to create and use simulation models—the most reliable and cost-effective tools for predicting real-world results! The Handbook of Processes and Modeling in the Soil-Plant System is the first book to present a holistic view of the processes within the soil-plant-atmosphere continuum. Unlike other publications, which tend to be more specialized, this book covers nearly all of the processes in the soil-plant system, including the fundamental processes of soil formation, degradation, and the dynamics of water and matter. It also illustrates how simulation modeling can be used to understand and forecast multiple interactions among various processes and predict their environmental impact. This unique volume assembles information that until now was scattered among journals, bulletins, reports, and symposia proceedings to present models that simulate almost all of the processes occurring in the soil-plant system and explores the results that these models are capable of producing. With chapters authored by experts with years of research and teaching experience, the Handbook of Processes and Modeling in the Soil-Plant System examines: physical, chemical, and biological soil processes the soil formation and weathering process and its modeling the impact of radioactive fallout on the soil-plant system soil degradation processes and ways to control them water and matter dynamics in the soil-plant system growth and development of crops at various levels of production the potentials and limitations of using simulation models Students, educators, and professionals alike will find the Handbook of Processes and Modeling in the Soil-Plant System an invaluable reference on the soil-plant-atmosphere system and an ideal tool to help develop an effective decision support system.
Author: Rolf Nieder Publisher: CRC Press ISBN: 9781560229155 Category : Technology & Engineering Languages : en Pages : 800
Book Description
Learn to create and use simulation models—the most reliable and cost-effective tools for predicting real-world results! The Handbook of Processes and Modeling in the Soil-Plant System is the first book to present a holistic view of the processes within the soil-plant-atmosphere continuum. Unlike other publications, which tend to be more specialized, this book covers nearly all of the processes in the soil-plant system, including the fundamental processes of soil formation, degradation, and the dynamics of water and matter. It also illustrates how simulation modeling can be used to understand and forecast multiple interactions among various processes and predict their environmental impact. This unique volume assembles information that until now was scattered among journals, bulletins, reports, and symposia proceedings to present models that simulate almost all of the processes occurring in the soil-plant system and explores the results that these models are capable of producing. With chapters authored by experts with years of research and teaching experience, the Handbook of Processes and Modeling in the Soil-Plant System examines: physical, chemical, and biological soil processes the soil formation and weathering process and its modeling the impact of radioactive fallout on the soil-plant system soil degradation processes and ways to control them water and matter dynamics in the soil-plant system growth and development of crops at various levels of production the potentials and limitations of using simulation models Students, educators, and professionals alike will find the Handbook of Processes and Modeling in the Soil-Plant System an invaluable reference on the soil-plant-atmosphere system and an ideal tool to help develop an effective decision support system.
Author: Paulo Pereira Publisher: Elsevier ISBN: 0128052015 Category : Technology & Engineering Languages : en Pages : 400
Book Description
Soil Mapping and Process Modeling for Sustainable Land Use Management is the first reference to address the use of soil mapping and modeling for sustainability from both a theoretical and practical perspective. The use of more powerful statistical techniques are increasing the accuracy of maps and reducing error estimation, and this text provides the information necessary to utilize the latest techniques, as well as their importance for land use planning. Providing practical examples to help illustrate the application of soil process modeling and maps, this reference is an essential tool for professionals and students in soil science and land management who want to bridge the gap between soil modeling and sustainable land use planning. - Offers both a theoretical and practical approach to soil mapping and its uses in land use management for sustainability - Synthesizes the most up-to-date research on soil mapping techniques and applications - Provides an interdisciplinary approach from experts worldwide working in soil mapping and land management
Author: Christoph Müller Publisher: Cabi ISBN: Category : Science Languages : en Pages : 376
Book Description
Soils interact with the biological environment in a number of ways. Our understanding of these interactions can often be enhanced by computer modelling. The primary function of this book is to introduce basic modelling skills and to show how even complex problems in the relationship between soil and the biosphere can be solved using modelling packages. The author presents numerous examples using ModelMaker, an easily learnt software package. Only basic mathematical skills are expected of the reader. A demo of ModelMaker is available on CD from Cherwell Scientific.
Author: David S. Powlson Publisher: Springer Science & Business Media ISBN: 3642610943 Category : Science Languages : en Pages : 424
Book Description
Soil organic matter (SOM) represents a major pool of carbon within the biosphere, roughly twice than in atmospheric CO2. SOM models embody our best understanding of soil carbon dynamics and are needed to predict how global environmental change will influence soil carbon stocks. These models are also required for evaluating the likely effectiveness of different mitigation options. The first important step towards systematically evaluating the suitability of SOM models for these purposes is to test their simulations against real data. Since changes in SOM occur slowly, long-term datasets are required. This volume brings together leading SOM model developers and experimentalists to test SOM models using long-term datasets from diverse ecosystems, land uses and climatic zones within the temperate region.
Author: Hwei-Hsien Cheng Publisher: ISBN: 9780891187912 Category : Pesticides Languages : en Pages : 0
Book Description
Pesticides in the soil environment - an overview. Pesticide sources to the soil and principles of spray physics. The retention processes: mechanisms. Sorption estimates for modeling. Abiotic transformations in water, sediments, and soil. Biological transformation processes of pesticides. Volatilization and vapor transport processes. Organic chemical transport to Groundwater. Movement of pesticides into surface waters. Modeling pesticide fate in soils. Efficacy of soil-applied pesticides. Impact of pesticides on the environment. Risk/benefit and regulations. Chemical index.
Author: Jörg Richter Publisher: ISBN: Category : Soil chemistry Languages : en Pages : 210
Book Description
The approach followed in this book. Statics and kinetics. Dynamic approach. Balance approach. The system in thermodynamics. Fundamentals of the theory of potential. The macroscopic approach. Aggregation and buffering. The term "model". Classifying the processes in the soil. The organization of this book. Heat conduction in soils. Significance of heat dispersion in soils. Phenomena of heat dispersion. Examples of daily temperature courses in soils. Example of an annual course of the temperature. Heat conductivity and capacity in relation to soil composition and structure. Deriving the transport equation using local balance and principle of causality. Local balance for matter and energy without transformation. One-dimensional transport equation of matter and energy in a rigid system with continuous pores. The equation for heat transport. Analytical solutions of the heat transport equation with constant aT. The stationary case. Sudden change in temperature as boundary condition. Oscillating temperature as boundary condition. Numeriacal solution of the heat transport equation with constant aT. Heat balance of the soil and heat conversion. Estimating the soil-absorbed energy. Heat to evaporate 1 mm water. Gas regime of soils. The significance of the gas regime in the soil. Phenomena in soil gas regime. Profiles of CO2 and O2 concentrations in the soil. Cycles and depth profiles of CO2 production. Parameters of the gas regime in soils. The apparent diffusion coefficient Ds. The storage of gases in the soil. Quantitative description of the gas regime in soils. Extending the transport equation. Partial pressure and diffusive gas transport. Solving the equation of gas regime. An analytical solution for the stationary case. Numerical solution for a stationary example. Applications of the gas transport and gas regime equation. The measurement of the diffusion coeficient Ds. The "tortuous" macropore as a structure model. Vapour flow in the soil. Micro-anoxia as a problem of aeration, and the redoxpotencial Eh. Soil water regime. The significance of soil water; annual balances. Phenomena of soil water flow. Water tension and water content profiles in the soil. Flows at the boundary area and in the soil. Hydraulic conductivity and the moisture retention curve. The hydraulic conductivity K( m). The moisture retention curve m(0). The water regime equation. The local water balance. The equation for the water flow qw. The hydraulic potential h. Different formulations of the water transport equation. Characteristic flow conditions of water in the bare soil. Equilibrium and quasi-equilibrium. Stationary and quasi-stationary conditions. Non-stationary flow. Applications and numerical solutions for the water regime equation. Moisture equilibrium in the soil. stationary flow in the soil during drying in summer. Solution methods for non-stationary flow. Simple water regime models for the flat, homogeneous cropped soil; the root uptake function P(z,t). Calculating the evapotranspiration E. The water regime of a wheat field on a loess-Parabraunerde. Regime of matter in soils. Significance of "matter" in the soil. Extension of the transport the transport models. Phenomena of ion flows. Movement of non-interacting ions during winter. Movement of interacting ions during winter. Paramenters of solute transport. Transport parameter: effective dispersion coefficient Db. Quantity/intensity relation for compenents that do interact with the soil matrix; the specific storage capacity B. Specific storage capacity C (and the diffusion coefficient D). Coupled transport flows of components that do not interact with the soil matrix. General description of coupled transport. Transport of dissolved non-interacting components in the soil. Particle charge. Introduction to reaction dynamics. Fundamentals of the course of reactions. Order of elementary reactions in homogeneous systems. A special case: second-order reactions of sigmoidal shape. Complex reactions in homogeneous systems. Heterogeneous reactions (interactions with the surfaces of solids). Models for reactive components and ions in the soil. Dynamic description of interactions of substances with the solid phase. Description of interactions of ions with charged surfaces of the solid phase (ions-exchange). Simple regime models of substances in the soil. Models for nitrification and simultaneous movement of nitrogen. Simulating the nitrogen regime of loess field soils during winter. A site model for the displacement of physically interacting ions for the example potassium. Simulating the degradation of herbicides in soils. Simulating the behaviour of heavy metals in the soil. "Complete"models of material components regime. Looking ahead. Beyond the assumptions. The soil as a non-rigid solid. Mechanical deformations and changes of the state of stress. Mechanical cause-and-effect relations. Changes of the parameters with mechanical deformations. The explicit modelling of nutrient uptake by plants. Field and regional models. Simulating solute transport in heterogeneous pore systems. Geostatistical formulation of spatial variability. Combining deterministic and stochastic approaches: Monte-Carlo simulation of salt transport. Alternative approaches: plate and compartment models. Modelling soil development. Appendix. Numerical solutions for non-stationary water transport and for solute transport under stationary flow conditions. Vertical solute movement under stationary flow conditions. Vertical water transport. Difference formulationwith the help of the Taylor equation. Gas solubilities in water. Conversion of units. List of symbols and indices.
Author: Jerry A. Yamamuro Publisher: Amer Society of Civil Engineers ISBN: 9780784407714 Category : Technology & Engineering Languages : en Pages : 497
Book Description
GSP 128 contains papers by 19 prominent constitutive modelers presented at the Geo-Frontier Conference, held in Austin, Texas, January 24-26, 2005.
Author: Rolf Nieder
Author: Rolf Nieder
Author: Paulo Pereira
Author: 
Author: Christoph Müller
Author: R. Anlauf
Author: Rüdiger Anlauf
Author: David S. Powlson
Author: Hwei-Hsien Cheng
Author: Jörg Richter
Author: Jerry A. Yamamuro