翻譯2.0(core case study)

With no plants to help absorb and retain water, runoff of water in the deforested valley increased by 30-40%. As this excess water ran rapidly over the surface of the ground, it eroded soil and carried dissolved nutrients out of the deforested site. Overall, the loss of key nutrients from the experimental forest was six to eight times that in the nearby undisturbed forest.

在沒有任何植被來吸收與涵養水源的情況下，濫墾濫伐的山谷地，地表逕流會增加30-40%的比率。當這些超量的水快速地沖刷過地表時，它不僅沖蝕了泥土也一併溶解並挾帶走該區的營養物質。整體來看，在開發過的森林區所損失的重要營養物質含量可達未開發區的六倍到八倍之多。