It is, however, valuable for irrigation and the production of hydroelectricity.
As scarcity grows, there will be increasing demand for valuable supplementary irrigation water, supplied by private concessionaires or by landowners who sell their water, rather than their crops.
The biggest dam enthusiast of all is dirt-poor Laos, which hopes to enrich itself by building enough hydropower projects to become the battery of South-East Asia.This barrage of dams generates valuable electricity, aids irrigation and regulates flooding but in the process does irreparable damage to what was, until recently, the Mekong's most valuable resource: its fisheries.
Groundwater is a valuable resource for domestic, irrigation and industrial uses.
They are also the chief sources of sediment causing siltation of lakes that are valuable sources of both drinking and irrigation water in the Alemaya and Harar areas.
Agricultural intensification in recent decades and current installation of new irrigation systems threaten these valuable habitats, set to be included in the Natura2000 network.
The final result is a complete and inexpensive system that allows continuous monitoring of the state of the crops, providing the user with valuable information about water balance for irrigation management.
The knowledge of the spatial and temporal distribution of soil moisture is a valuable tool for proper management of crop irrigation.
The distillery effluent contains N, P, K, Ca, Mg, and SO4 (Devarajan et al. 1996), and it is, thus, a valuable fertilizer when applied to soil through irrigation water.
Furthermore, our work is important to determine the appropriate mode of economic development of Ningxia Yellow River irrigation area which can be valuable for other researchers.
