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Evapotranspiration in the Soil-Plant-Atmosphere System

Series: Progress in Soil Science

By: Viliam Novák(Author)

272 pages, b/w illustrations


Hardback | Jun 2012 | #205002 | ISBN-13: 9789400738393
Availability: Usually dispatched within 1 week Details
NHBS Price: £109.99 $140/€123 approx

About this book

Evapotranspiration and its components (evaporation and transpiration) as a process is one of the basic terms of Earth's water balance; its importance is accented by the fact that transpiration is the vital element of the biomass production process. The second important property of evapotranspiration is its extreme consumption of solar energy, thus controlling the temperature of the atmosphere and creating favourable conditions for life.

Evapotranspiration as an energy consuming process is also the connection between the energy and mass cycles of the Earth. Evapotranspiration is a process performing in the Soil-Plant-Atmosphere System (SPAS); therefore Evapotranspiration in the Soil-Plant-Atmosphere System is presenting and quantifying it as a catenary process, describing transport of water in the soil, including root extraction patterns and methods of its evaluation. Transport of water through the plant and from the canopy to the atmosphere is also described and quantified.

A variety of evapotranspiration (and its components evaporation and transpiration) calculation methods are described, starting from empirical methods up to the most sophisticated ones based on the solution of the transport equations of water and energy in the SPAS. The most important (and widely used) calculation method-modified Penman–Monteith method is described in details, ready to be used with data in the book only. Water balance method of evapotranspiration estimation as well as sap flow method description can be found in Evapotranspiration in the Soil-Plant-Atmosphere System as well. The book can be used by hydrologists, biologists, meteorologists and other specialists as well as by ecology students.


Evapotranspiration - component of water cycle
- Evaporation process and its basic properties
- Evaporation and kinetic theory of fluids
- Water balance and water cycle
- Energy balance of the evaporation area

Soil-plant-atmosphere system
- Water
- Soil and other parts of Earth surface
- Basic soil properties
- Canopy
- Atmosphere

Evaporation from different surfaces
- Evaporation of intercepted water
- Evaporation from free water surface
- Evaporation from snow and ice
- Evaporation from urban territories
- Transpiration
- Potential evapotranspiration

Transport of water and energy in the boundary layer of atmosphere
- Meteorological characteristics of the boundary layer of atmosphere vertical distribution
- Coefficients of heat and water vapour transport in the SPAC system

Movement of water in soil during evaporation
- Bare soil evaporation
- Soil water content profiles during bare soil evaporation
- Transport of water and heat in an unsaturated porous media
- Soil water transport quantification in isothermal conditions
- System of equations describing the transport of heat and water in porous media

Movement of water in the soil root zone during transpiration
- Water in a soil root zone
- Roots system
- Field measurements
- Methods of soil water uptake patterns calculation
- Mesoscopic approach to water uptake by plant roots

The role of plants in transport processes in the Soil - Plant - Atmosphere system
- Transport of water from soil through plant to the atmosphere and its quantification
- Transpiration control by stomata
- Canopy and stomata conductivity during transpiration

Evapotranspiration and soil water
- Evapotranspiration and soil water content
- Evapotranspiration and soil-water potential.--Transpiration and uptake of water by roots during combined water and salinity stress

Methods of evapotranspiration estimation
- Evapotranspiration measurement
- Methods of evapotranspiration calculation
- Micrometeorological methods of evapotranspiration estimation
- Measurement and evaluation of sap flow data in trees and stands to evaluate transpiration rate

Evapotranspiration components structure
- Potential evapotranspiration components structure
- Components of evapotranspiration: Daily and seasonal courses

Combination method of daily evapotranspiration calculation
- Distribution of land according to the type of evaporating surface
- Net radiation of evaporating surfaces
- Potential evapotranspiration of homogeneous surfaces
- Potential evapotranspiration components. -Actual evapotranspiration calculation

Estimation of regional evapotranspiration using remote sensing data
- Energy balance method
- Regional evapotranspiration estimation using complementary relationship

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Viliam Novák graduated at the Faculty of Civil Engineering of the Slovak University of Technology in Bratislava, Slovakia (1964). He is a Water Resources specialist, with a PhD degree from the Institute of Hydrology, Slovak Academy of Sciences, Slovakia Department of Hydrodynamics of Porous Media (1973). Rising from Technical Assistant to Principal Scientific Officer in 1992, he was engaged in the study of transport processes in the Soil-Plant-Atmosphere System (SPAS), especially in evapotranspiration process and methods of calculation. Another field of interest is extraction of soil water by roots and mathematical modelling of the water transport in the Soil-Plant-Atmosphere System. Dr. Novák is now working at the Department of Soil Hydrology (part of the Institute of Hydrology), of the Slovak Academy of Sciences in Bratislava (Slovak Republic).

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