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The soil is being contaminated continuously by a large number of
pollutants. Among them, heavy metals are an exclusive group of
toxicants because they are stable and difficult to disseminate into
non-toxic forms. The ever-increasing concentrations of such
pollutants in the soil are considered serious threats toward
everyone's health and the environment. Many techniques are used to
clean, eliminate, obliterate or sequester these hazardous
pollutants from the soil. However, these techniques can be costly,
labor intensive, and often disquieting. Phytoremediation is a
simple, cost effective, environmental friendly and fast-emerging
new technology for eliminating toxic heavy metals and other related
soil pollutants. Soil Remediation and Plants provides a common
platform for biologists, agricultural engineers, environmental
scientists, and chemists, working with a common aim of finding
sustainable solutions to various environmental issues. The book
provides an overview of ecosystem approaches and phytotechnologies
and their cumulative significance in relation to solving various
environmental problems.
Soil is the most important natural non-renewable resource developed
over a longer period of time due to weathering of rocks and
subsequently enrichment of organic matter. Soil provides habitat
for numerous microorganisms and serves as a natural medium for
plant growth, thereby providing the plants with anchorage,
nutrients and water to sustain the growth. Soil also serves as a
universal sink for all types of pollutants, purifies ground water
and is a major reserve of carbon in the universe. The role of soils
to provide ecosystem services, maintenance of environmental/human
health and ensuring the food security makes it as the most
important and basic natural resource. Soil Science helps us to
elaborate and understand how the soils provide all these services.
Soil Science also provides us the basic knowledge dealing with the
origin of the soil parent material, weathering of parent material
and the formation of soils, morphological, physico-chemical and
biological features of soils, classification of soils and role of
soils in the provision and maintenance of ecosystem services, food
security and environmental quality. This book encompasses the
various processes, functions and behaviour of soils very
comprehensively to acquaint the students of soil, plant and
environmental sciences about their role to perform different
agricultural and environmental functions.
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