But using maginal marginal land for grazing is not as simple as it might sound. Cattle can damage forage crops by eatting eating down to the roots. Also, also they are wait crashes their weight crushes the soil. That can make the ground too hard for growing.

A way to reduce the damage for from overgrazing is to move animals from one 1 field to another. Experts say rotational grazing like this is extremely important for maginal marginal land. We will talk more about rotational grassing grazing next week.

Another use for marginal land is for tree crops. Trees help support the soilthey . They reduce the damageing damaging effects of wind and rainand . And they can provide grazing animals with shade from the sun.

Studies have showed shown that the white palm pine and loblolly paim pine are two 2 kinds threes of trees that grow well on marginal land. They grow fast and provide good quality wood, another . Another kind of condiser to consider is the public and they poplar. And there are slower growing threes slower-growing trees like the black wamert walnut that provide another a nut crop as well as wood.

Marginal lands need care, failing . Failing to take that care might don't only make a bad situation worse, but . But good planning can turn the a marginal resource into the a highly productive one.

rotational---轮流的 
rotational grazing---循环放牧
pine---松树
white pine---美国五针松
loblolly pine---火炬松
loblolly---泥泞、水洼、火炬松
poplar---杨树
slower-growing trees---慢生树
walnut---胡桃树

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. 但是将边际土地用于牧场并非听上去那么容易。牲口吃草时会吃到草根并破坏饲料的生长。而且，它们的重量会压坏土壤。这会令土地难以生长。 A way to reduce the damage from overgrazing is to move animals from 1 field to another. Experts say rotational grazing like this is extremely important for marginal land. We will talk more about rotational grazing next week. 有一种方法可以减少土地因过度放牧所带来的破坏，那就是将动物们从一个牧场转到另一个牧场。专家说循环放牧对于边际土地来说非常重要。下周，我们会谈多一些关于循环放牧的问题。 Another use for marginal land is for tree crops. Trees help support the soil. They reduce the damaging effects of wind and rain. And they can provide grazing animals with shade from the sun. 另一种使用边际土地的方法是种树。树木可以帮助维护土壤。它们可以降低风雨的破坏性影响。而且它们还可以给牧场动物以太阳下的阴凉。 Studies have shown that the white pine and loblolly pine are 2 kinds of trees that grow well on marginal land. They grow fast and provide good quality wood. Another kind to consider is the poplar. And there are slower-growing trees like the black walnut that provide a nut crop as well as wood. 研究表明：美国五针松和火炬松这两种树木可以在边际土地上生长得很好。它们生长迅速而且能提供优质木材。另一种可以考虑的树木是杨树。还有一些慢生树木，如黑胡桃树，既可以提供坚果作物又可以提供木材。 Marginal lands need care. Failing to take that care might only make a bad situation worse. But good planning can turn a marginal resource into a highly productive one. 边际土地需要呵护。如果保护不当，将只可能导致情况更糟。但是良好的计划能够令边际土地资源变成高产土地。