Natural Hazards: Causes and Effects - Disaster Management Center ...
Natural Hazards: Causes and Effects - Disaster Management Center ...
Natural Hazards: Causes and Effects - Disaster Management Center ...
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Issues in Reconstruction Peculiar to Desertification<br />
When working to prevent, mitigate, or recover from the results of desertification, an individual<br />
should keep in mind the following information that can make reconstruction efforts more<br />
successful.<br />
Desertification Feeds on Itself<br />
The need for action to combat desertification is all the more urgent because the process is a<br />
dynamic one. Desertification can feed on itself <strong>and</strong> become self-accelerating. With delay,<br />
rehabilitation becomes increasingly lengthy <strong>and</strong> expensive, <strong>and</strong> degradation may reach a<br />
threshold beyond which it is irreversible in practical <strong>and</strong> economic terms. Fundamental<br />
preventive measures should be introduced as soon as possible. These should be in the form of<br />
socio-economically appropriate l<strong>and</strong>-use practices that improve the fertility of microclimates <strong>and</strong><br />
soils <strong>and</strong> prevent desertification from making further encroachments.<br />
Monitoring Dryl<strong>and</strong> Conditions<br />
Apart from limitations set by climate, dryl<strong>and</strong> ecosystems will remain sensitive to l<strong>and</strong>-use<br />
pressure because their soils <strong>and</strong> dynamics are delicately balanced. The best-designed dryl<strong>and</strong><br />
livelihood system will still require constant surveillance if balance is to be sustained. It is<br />
therefore essential that campaigns against desertification must incorporate systems of<br />
monitoring that will indicate how campaigns are proceeding <strong>and</strong> when people should be alerted<br />
about pending problems. This requirement strongly underlines the need to develop indigenous<br />
science <strong>and</strong> technology, so that assessment, monitoring <strong>and</strong> planning will not be added to the<br />
list of imported items.<br />
A Flexible Plan of Action<br />
A geographical spread as immense as the dryl<strong>and</strong>s comprises a vast variety of biophysical,<br />
economic <strong>and</strong> social settings. Desertification processes <strong>and</strong> problems are correspondingly<br />
varied <strong>and</strong> complex. Any plan of action to combat desertification will recognize this, <strong>and</strong> with it<br />
that there can be no single set of remedies. Recommendations must take account of different<br />
situations <strong>and</strong> be flexible enough to encompass a wide range of conditions.<br />
The Problem of Applying Current Knowledge<br />
A review of the desertification problem strongly supports the contention that past failures to<br />
maintain balanced livelihood systems in the dryl<strong>and</strong>s are the outcome of an inability to apply<br />
existing knowledge of physical processes rather than lack of underst<strong>and</strong>ing of what those<br />
processes are. The same is true of the design of measures to combat desertification.<br />
Accordingly, plans of action should address, first of all, the application of existing knowledge,<br />
the adaptation of existing knowledge to local situations in the social <strong>and</strong> physical spheres, <strong>and</strong><br />
problems of acceptance <strong>and</strong> participation among local communities.<br />
Desertification <strong>and</strong> Government Goals<br />
It should not be take for granted that action to combat desertification will take first place among<br />
national commitments. A plan of action to combat desertification should not appear to pre-empt<br />
already-established national priorities. Nevertheless, it should be kept in mind that action on the<br />
ground will largely be carried out by national organizations, <strong>and</strong> presentation of the plan should<br />
accordingly aim to influence governmental attitudes toward the problem of desertification <strong>and</strong><br />
should seek to secure the active commitment of governments. This is most likely to occur when<br />
combative measures, linked to broad national plans for development, appear to be consistent<br />
with national goals.