Laserfiche WebLink
<br />. <br /> <br />Loading Models <br /> <br /> <br />Models predicting unit-area total phosphorus loading (Ibs/acre) and <br /> <br /> <br />inches of runoff from rainfall based on land use were used to predict <br /> <br /> <br />present and futu re nonpoint contribution. The DRURP models were used to <br /> <br /> <br />estimate the loading and runoff for each storm size interval as defined <br /> <br /> <br />in Tables 3 and 4. The load or runoff from a storm size was multiplied <br /> <br /> <br />by the average number of storms of that size expected per year in the <br /> <br /> <br />basin. The load and runoff for all storm sizes per year were then <br /> <br /> <br />summed to obtain the Ibs/acre of total phosphorus and inches of runoff <br /> <br /> <br />expected on one acre for each land use type. Multiplying annual <br /> <br /> <br />unit-area loads or runoff by the number of acres of a specific land use <br /> <br /> <br />yields the annual load or runoff volume for that land use. Table 5 <br /> <br /> <br />shows the loading equations and Table 6 shows the runoff equation. <br /> <br /> <br />Tables 7 through 14 show the phosphorus loading and runoff based on the <br /> <br /> <br />equations. <br /> <br />65 <br />