Sanmugam Prathapar

The length of coastal areas around the globe is over 1.6 million kilometers, skirting approximately 150 countries. Many of them are in the tropics with sprawling cities along the coast not far from rural populations. Farmers may be adapting environmentally unsustainable agricultural practices similar to what is being adapted in Keta and Kalpitiya, two coastal regions that are continents apart. Is this level of intensification ecologically sustainable?

If WLE is promoting a new paradigm, where sustainability of agro-ecosystems constitutes the entry point for all agricultural development, what does this mean to a natural resources manager?

Water, the primary resource for irrigated agriculture, is demanded by domestic, industrial, environmental and agricultural sectors within a catchment.  In other words, water of varying quality is demanded by multiple sectors and in varying quantities by multiple users within a catchment. 

In recent literature color has been added to water.  Blue water is defined as water which can be collected, pumped or transported.  It essentially refers to water in surface and groundwater reservoirs.  Green water on the other hand refers to water held by matric forces in an unsaturated soil, he