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Newsletter and Technical Publications
<Planning and Management of Lakes and Reservoirs:
An Integrated Approach to Eutrophication
Abridged Version- A Student's Guide>
Societies and their Social and Cultural Connections with Water
Drinking, cooking, and washing are basic uses for water. When a community’s
lifestyle is simple, water uses are limited. When a society’s lifestyle becomes
complex, water uses increase, particularly in urban, industrial and agricultural
areas. Hence, an understanding of traditional and non- traditional water uses is
necessary to be able to develop a management strategy for sustainable use of
lakes and reservoirs.
During the middle of the 19th century, the industrial revolution enabled many
cities to install two types of water infrastructure: sewage systems and water
supply systems. Public health in the urban environment was drastically improved
by these systems. Following the industrial revolution, political change in many
societies led people to develop a public health consciousness and a scientific
approach to solve public health problems and, later, environmental problems.
Perceptions about the utility of water bodies differ according to the nature
of the relationships of people with water. While lakeshore communities are
directly and psychologically involved in the well-being of a water body,
communities higher in the watershed may not perceive the impact of their
activities on downstream water bodies with the same seriousness.
An understanding of the social and cultural aspects of water use in different
societies is important for decision-makers and managers and will be helpful in
planning public awareness programs and a greater involvement of citizens in the
management of water. Religious influences on water-related practices, such as
clean water acquisition and sanitation, affect the use of water by different
societies. These practices are rooted in past eras but strongly affect present
water-related culture.
The role of water in religion
Religions have rituals and practices pertinent to use of water or the worship
of water-associated gods.
In the Islamic religion, the Koran states that “water is what everything is
made of including manE In Islamic societies water is used for washing before
praying and is considered precious for all living things. In Christian societies
in Europe, North America, South America and Asia, water plays an important role
in the rite of baptism. The rite does not require a large amount of water, but
high purity of water is important.
The Hindu religion emphasizes the importance of water in religious services.
Among various rites, ablution is essential for praying to gods and goddesses;
water use for ablution is much larger than that in the Islamic rite.
Requirements for water in religious rites in Buddhism are similar to those of
Hindu. Confucianism and Taoism were more influential religions than Buddhism and
other religions in China and Korea in the past, and these two religions do not
specifically require water in religious rites. Japanese Shintoism always
requires clean and clear water in front of shrines.
Although good water quality is required for many religious practices there
is, in general, no focus on the need to maintain clean water through appropriate
behavior within the watershed. Hence, it is important for the water managers to
directly or indirectly emphasize that a “clean water cultureEshould be
developed or strengthened. This should reflect the community’s behavior towards
water bodies and the possibilities of reducing their degradation.
Water supply and waste water
European societies, in spite of having safe public water supplies, have
developed the custom of drinking bottled water. The drinking of bottled water is
a cultural phenomenon, not a public health measure. In North America, provision
of safe water supplies has been solved using approaches similar to those in
Europe. However, using bottled water for drinking in the USA is not as popular
as in many countries in Europe and in Mexico. This costly custom solves only the
problem of safe drinking water; it does not solve all the problems of public
health or the aquatic environment.
Wastewater technology has not been universally introduced in African
countries due to several factors including finances, human resources, and
environmental education of the public. Unhealthy habits in some countries result
in fecal contamination and eutrophication of water bodies.
The Indian subcontinent embraces many ethnic groups, and while clean water is
important to many, limited attention is paid to wastewater discharge. One Hindu
social practice is that only people of the lowest caste handle human wastes. In
such case (or example), it may be difficult to solve problems of water pollution
when the whole society may not confront the fate of their wastes. Such general
indifference occurs not only in Indian society but in many societies around the
world.
Agriculture and land use practices
The Chinese civilization is unique when compared to other civilizations in
terms of use of human waste for agriculture. The Chinese people used human
wastes as fertilizer from their early stages of civilization, while others, such
as the Egyptian, Mesopotamian, and Indus civilizations, developed the practice
of animal dung use as fertilizer. The use of human waste as fertilizer in
northern and southern parts of China helped to increase crop yields. The use of
human waste in agriculture provided positive, as well as negative, effects on
the environment. While the practice reduced eutrophication of lakes and
reservoirs in the past, it contaminated agricultural food with microbes and
parasites.
Japan adopted the Chinese agricultural practice of using human waste as a
fertilizer. When western civilization was introduced to Japan in the middle of
the 19th century, because of the loss of human waste as a resource, there was a
strong opposition from the agricultural sector against installation of sewage
pipes in urban areas. The introduction of chemical fertilisers to Japanese
agriculture reduced the traditional use of human waste. Nevertheless, the
separation of the faeces from urine in human wastes, so that ammonia can be used
as a fertiliser in agriculture, is still practiced. While this procedure could
be acceptable in some societies, for others it would be unacceptable due to
religious or cultural beliefs.
In Africa, leading causes of eutrophication include deforestation,
overgrazing, inadequate solid and sewage waste treatment, industrial effluents,
and non-point pollution from urban and rural areas. Assessments of indigenous
knowledge systems for resource management, such as agro-forestry practices and
land tenure, have revealed that farming practices have traditionally taken
diverse forms. In contrast, recent cultivation of single crops, that promote
erosion, is partially a consequence of colonial and postcolonial intervention to
the extent that these agricultural policies repressed the original diversity in
traditional farming techniques.
Aquaculture
Aquaculture has been practised for many years in Southeast Asia, China and
Japan. Today, due to the rapid population growth and the need for protein for
human consumption intensive aquaculture has been increased and spread to many
developing countries. This situation has resulted not only in changes in food
production but also in the degradation of many freshwater bodies because of
eutrophication from nutrients in the food provided to the fish or shrimp.
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