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May 2—MOSES LAKE — When it comes to the cost of farming, irrigation — especially in the Columbia Basin — is a cost that has to be factored in and planned for with each acre having a place ...
The cost of conducting a basic audit with "top down" approach would be between $84 and $133 to purchase the AWWA's M36 manual. There is no cost to use the AWWA's free water audit online software. The audit guidelines or methodology with worksheets can also be attained for free through various local government websites.
Prices for irrigation water that is being provided by a public agency are also typically determined administratively, usually using a flat rate, since metering is not common in agriculture in most countries of the world. The following pricing systems exist for irrigation: [6] Area-based tariffs, sometimes differentiated by type of crop grown
The water management signified a large subsidy on irrigation schemes. From 1980 the operation and maintenance of many irrigation projects was gradually handed over to water user organizations (WUA's) who were to assume these tasks and a large part of the costs, whereby the water rights of the members had to be respected.
Irrigation schemes in the world use about 3 500 km 3 water per year, of which 74% is evaporated by the crops. [7] This is some 80% of all water used by mankind (4 400 km 3 per year). The water used for irrigation is roughly 25% of the annually available water resources (14 000 km 3) and 9% of all annual river discharges in the hydrological cycle.
Volumetric pricing requires metering that can be expensive to implement, especially in the case of irrigation, alternatives include: [2] [3] [4] flat rate; per-area pricing, coupled with tiered pricing; a system of water rights or quotas; input pricing as a percentage of the cost of certain input(s), e.g., seed;
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