erosion control program 中文意思是什麼
erosion control program
解釋
防蝕方案-
Finishing quantitative remote sensing task on soil losses of 1998 and 1999 in study area. through running the pixel statistical program, we can obtain the results of soil erosion in the drainage basin - the total amount of soil losses of the experimental region were : 4. 84 million tons in 1998 and 8. 69 million tons in 1999 respectively. we also can obtain the results of control areas of soil losses in study area according to soil conservation intensity prediction model : the areas need to administrate was 317. 77 km2 and in dire need of administration was 17. 96 km2 in 1998
運行像元統計程序可獲得該流域土壤流失結果為： 1998年試驗區土壤流失總量為484 . 01萬噸， 1999年則為869 . 01萬噸；依防治強度預報模型可運算出研究區水土流失防治面積結果： 1998年需要治理的面積為317 . 77平方公里，急需治理的面積為17 . 96平方公里；而1999年需要和急需治理的水蝕面積上升為354 . 45平方公里和18 . 91平方公里。
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