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Newsletter and Technical Publications
<Planning and Management of Lakes and
Reservoirs: An Integrated Approach to Eutrophication>
INTRODUCTION (suite)
Chapter 1 (ENVIRONMENTAL) describes the eutrophication, and defines both
deleterious and beneficial impacts, as well as the demarcation between
these two extremes, as lakes and reservoirs progressively change in
response to nutrient loading derived from human activities in the
associated watershed. In the discussion on the causes of eutrophication,
land uses are defined, and the integration and interaction between
environmental compartments are highlighted.
Chapter 2 (SOCIAL AND CULTURAL) consists of discussion on the major
societies making up the global village, and the aspects of their culture
which are non-negotiable and must be accepted within the context of a
system for the management of lakes and reservoirs. The importance of the
interaction of the cultures with water, and, in many cases, with each
other, is emphasized. Traditional water uses, through which people
developed their perception of water and water culture, are discussed.
Chapter 3 (POLICY, INSTITUTIONAL AND REGULATORY FRAMEWORK) contains
discussion of the need for establishing managerial goals tailored to
specific conditions in preventing the eutrophication of lakes and
reservoirs. Models of institutional arrangements that have been
successfully used are given, and the strength and weakness of each model
is discussed to a degree, which would allow a rational selection of an
appropriate model for any situation. Further, the role of regulation and
enforcement and access to financial support, human resources and training
programs for local people are discussed in this chapter.
Chapter 4 (PUBLIC AWARENESS AND EDUCATION) discusses the importance of
satisfactory public involvement and commitment in the decision-making
process of lake and reservoir management. Tools for raising public
awareness, such as environmental education programs and public
communication, are described. The importance of education in local issues
of lake and reservoir management as an ongoing process, from early
childhood and carrying on throughout adult life, is highlighted in this
chapter.
Chapter 5 (ECONOMIC) discusses eutrophication resulting in the loss of
economic benefits or loss of beneficial use of lakes and reservoirs. This
chapter presents information on economic activities associated with the
eutrophication and economic evaluation of the eutrophication, including
descriptions of different valuation methodologies. The benefit-cost
analysis is discussed as it is an important tool for evaluation of both
deleterious and beneficial impacts of the eutrophication of lakes and
reservoirs. Further, economic instruments for the prevention and control
of eutrophication are described in this chapter.
Chapter 6 (TECHNICAL AND MANAGERIAL) describes technological solutions
in the control of eutrophication and associated problems. Cost and
procurement are considered, and details of available technologies, from
modified natural systems to high-technology water treatment systems, are
outlined in this chapter. However, cost-moderate solutions, which may
better suit developing countries than costly high-technology treatment
systems, are emphasized. The description of different solutions allows
comparison of a standard set of attributes to enable sound selection of a
single system or a mix of appropriate technologies. A review of techniques
for remediation of sediments, which contribute to the eutrophication of
lakes and reservoirs, and techniques for monitoring of water quality, are
included in this chapter.
Chapter 7 (MANAGEMENT) discusses the state of lake and reservoir
management globally by examining different management arrangements at
local, national and international levels using selected cases as examples.
By this, it illustrates management issues pertinent to specific conditions
and how such issues are historically dynamic. Further, the need for
management strategies adaptable to evolving management is discussed. A
brief outline of restoration techniques, which can be used in the
management of eutrophic lakes and reservoirs, is included in the chapter.
Chapter 8 (NEW APPROACH TO EUTROPHICATION CONTROL: IMPROVING MANAGEMENT
CAPACITY) is a synthesis of the information provided in the above seven
chapters. This chapter emphasizes the innovative aspects of the
publication and a new integrative/multidisciplinary approach to the
management of lakes and reservoirs in different parts of the world.
Further, the most important issues to be considered in a new approach to
the management of lakes and reservoirs are highlighted in this chapter.
Different reports, scientific papers and books, which discuss various
aspects of the eutrophication of lakes and reservoirs and solutions of
associated problems, have been published in the past. However, this
publication outlines a new approach to water resources management,
particularly eutrophication, emphasizing the need to integrate and solve
simultaneously social, cultural, economic, and other associated problems
considering at the same time the natural setting of the lake/reservoir and
its environment. Further, the watershed ecosystem approach, which needs to
be adapted in successful management strategies for water quality in lakes
and reservoirs, is highlighted in the publication.
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