World Development Report on Sustainable Development:
Management of environment encompasses two approaches viz:
For planners, there are two approaches to resource management:
J.N.R. Jeffers has formulated (1973) five-stage iterative planning for land use and resource management.
For sustainable planning and development, resources are further categorized as recyclable resources, i.e., a special type of non-renewable resource (e.g., metals) and inexhaustible or flow resources (e.g., sunlight, wind).
It is extremely important for planners to consider the ecological aspect for our future survival. A concrete database of ecological resources should be prepared by conducting an extensive field survey and using remote sensing technology.
Evaluation of ecological resources should be undertaken. The Biological Record Centre of the Nature Conservancy Council, the UK has elaborated a scheme that calculates threat value for individual species of plants.
C.R. Tubbs and J.W. Blackwood evolved (i) Primary ecological zones, (ii) Ecological evaluation for each and every ecological zone on the basis of general land use and biodiversity of habitat, and (iii) Relative ecological evaluation map.
Conservation of nature for sustainable development and planning has the following objectives:
Ecological conservation may be achieved by following the measures mentioned below:
Man-made constructions such as huge dams, oil pipelines, industries have raised hue and cry all over the world, particularly in the last few decades. Lack of adequate planning in the case of Aswan dam (Egypt) has caused major problems like silting of reservoirs; reduction of plankton in the lower course of River Nile has adversely affected species like sardine, mackerrel, lobster, etc. Reservoirs and canals are affected heavily by snails” which cause deadly diseases. Reservoirs have increased the occurrence of diseases like malaria; they have also increased soil salinity which has led to reduced soil fertility.
On the contrary, the Trans-Alaska project was implemented after adequate planning. Therefore, the pipeline route carefully avoided the seismic active zone of Alaska as well as the delicate marine environment of the Pacific Ocean.
Without proper planning, the project could have caused disasters like the discharge of effluents, thawing of permafrost regions, loss of valuable flora and fauna, etc.
For the development of agriculture, agro-climatic planning has been advocated by experts belonging to various disciplines. The application of chemical fertilizers is gradually being replaced by bio-manures in different parts of the world.
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1. What is sustainable development and why is it important? |
2. What are the key principles of sustainable development? |
3. How does sustainable development contribute to poverty alleviation? |
4. What are some challenges in implementing sustainable development? |
5. What role can individuals play in promoting sustainable development? |
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