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<br />0281 <br /> <br />Given an estimate of the quantity of water that could be made available by retirement of marginal land <br />and the acreage of productive crop lands available, an analysis of the water requirement for ma:iT.lIm <br />production of major crops grown, compared to the quantity of water historically available will lead to <br />estimates of the potential of land-to-land transfer within the system. <br /> <br />Alternative 6: Land Fallowing <br /> <br />This alternative can best be evaluated by having stockholders react to various scenarios wherein an <br />annual water demand by buyer or lessee is given and several fallow alternatives are stated. <br /> <br />Typical wheat fallow rotation in which the land is clean-tilled may not be acceptable because of wind <br />erosion hazards. Other cropping alternatives to traditional fallow may yield equivalent quantities for <br />lease or sale. One alternative might be to remove all irrigation from established alfalfa for one year, <br /><)r perhaos apply only one irri~ation. The fanner would have no tillage costs or herbicide costs for the <br />season and likely th~stamtwould be retam~ Other alternatives could readily be defined by, t.. ' <br />agriculturists including fanners in the area. L(:'l if\! I <br />~ ~'1o-;Y <br />~~~ ~~_I <br />~~(~~ <br />Q~T- ' <br />"'I \ I <br /> <br />. <br /> <br />Define fallow scenarios: <br /> <br />remove water from alfalfa for one year (no crop) <br />remove water from alfalfa for all but one irrigation <br />plant land used for annual crops with low water use crop (e.g. sudan grass, cover <br />crop) requiring no irrigation. <br /> <br />. Define water allocation with each scenario. <br /> <br />. Identify lands for fallowing. Array the variables and detennine values. <br /> <br />. Determine levels of acres committed by fallowing by gradation of soil type, productivity or <br />other selected variables. <br /> <br />. Identify and quantify positive and negative impacts at each level of fallowed acreage. <br /> <br />Alternative 7: Interruptible Supply <br /> <br />The Ft. Lyon operates in five (5) divisions, with extensive lateral systems. Rerum flow characteristics <br />vary from location to location. Due to this extent of the Ft. Lyon system, interruptible supply <br />alternatives should consider implementation of programs for certain segments.-?f the ditch, rather than \\ ~ .v <br />the entire system. cy <br /> <br />Approaches could include: . ----- <br /> <br />. <br /> <br />interruptible supply lands only n~ar the tail of the ditch <br /> <br />. <br /> <br />interruptible supply only on lands at the ends of laternls. <br /> <br />20 <br />