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Abstract
The small watershed program in the Arkansas-White-Red Water Resource Region produced little change in land use between 1966 and 1970. Flood protection did not seem to influence increased fertilizer inputs on flood plain land. Irrigation from upstream water detention reservoirs increased average annual net income nearly $1,700 for 92 farmers. Ex post estimates of annual flooding fell much below work plan estimates of average annual flooding. Ex post estimates of flood damage to crops and pasture for the 56 sample watersheds during 1966-70 were about 75 percent less than work plan estimates. Since there was such a wide disparity between work plan and ex post estimates of flood control, procedures and variables for these estimates were intensively analyzed. Several suggestions are offered for adjusting and refining them.