我们继续探讨边际土地的利用问题。边际土地需要我们的呵护。如果我们不能好好呵护它们，情况只会更糟。loblolly
But using marginal land for grazing is not as simple as it might sound. Cattle can damage forage crops by eating down to the roots. Also, their weight crushes the soil. That can make the ground too hard for growing.A way to reduce the damage from overgrazing is to move animals from 1 field to anothe…
但是，使用边际土地作为牧场并不像听起来那么简单。牛会把草根啃掉，这样就会毁坏饲料作物，而且它们的体重也会压碎土壤，这可能造成土地硬化，植被无法生长。一个有效减少过度放牧带来的危害的方法就是将牲畜在不同地块之间迁徙。专家称轮牧对于这样的边际土地至关重要。下周我们将更多地探讨轮牧。边际土地的另一个用处就…