Elk were overgrazing the grassland, causing damage to the precious eco-system.

麋鹿在草原上过度啃草，对宝贵生态系统造成了破坏。

For a century, this land had been overgrazed by livestock, like most grasslands around the world.

这片土地就像世界各地大部分草地一样，经历了长达一个世纪过度放牧。

This economic reliance on livestock in certain regions makes large tracts of land susceptible to overgrazing.

在某些地区，家畜是人们主要经济源，大量土地因此而遭受过度放牧风险。

Firstly, overgrazing and intensive cropping are two ancient but destructive practices that lead to the loss of soil fertility.

首先，过度放牧和集约化种植是两种古老但具有破坏性做法，会导致土壤肥丧失。

Sharks limit the abundance of animals which would otherwise overgraze these essential plants.

鲨鱼限制了动物数量，否这些动物会过度放牧这些重要植物。

In comparison, Oceania, with 13% of its farmland degraded, was predominantly affected by overgrazing, 11.3%.

相比之，大洋洲 13% 农田退化，主要受到过度放牧影响，为 11.3%。

That can lead to destructive overgrazing.

这可能导致破坏性过度放牧。

An otter's appetite protects the kelp forest from being overgrazed.

水獭食欲保护了海带森林免遭过度砍伐。

Together, increased demand, overgrazing, and climate change mean that cashmere is getting worse.

需求增加、过度放牧和气候变化共同意味着羊绒状况日益恶化。

Scientists have found that overgrazing has contributed to the degradation of 70 percent of Mongolia's grasslands.

科学家发现，过度放牧导致蒙古70%草原退化。

This contrasts with Oceania and North America, where overgrazing and overcultivation were more prevalent causes of degradation.

替代医疗加入主流治疗吗。

Unfortunately, the ranchers overgrazed their land, leading to widespread starvation of their herds in the decade that followed.

不幸是，牧场主过度放牧他们土地，导致他们牛群在接十年里普遍挨饿。

The urchin keep the otter healthy and fed, and the otter eating the urchin keeps the kelp from being overgrazed.

海胆保证水獭健康并给它吃饱，而吃海胆水獭又可以防止海带被过度吃掉。

Europe, which experienced the highest overall percentage of land degradation at 23%, also faced challenges from overcultivation, 7.7%, and overgrazing, 5.5%.

欧洲土地退化总体百分比最高，为 23%，但也面临着过度耕作 （7.7%） 和过度放牧 （5.5%） 挑战。

North America had a relatively lower incidence of degraded land at 5%, with overcultivation, 3.3%, and overgrazing, 1.5%, being the main causes.

北美土地退化发生率相对较低，为 5%，其中过度耕种 （3.3%） 和过度放牧 （1.5%） 是主要原因。

None of the departments had set rules for conduct in the park, so hunters killed park wildlife, cattle overgrazed fields, and visitors vandalized landmarks.

没有一个部门制定了公园内行为规，因此猎人杀死了公园内野生动物，牛群过度放牧，游客破坏了地标。

The phenomenon was first described in a pamphlet by economist William Forster Lloyd in 1833 in a discussion of the overgrazing of cattle on village common areas.

1833 年，经济学家威廉·福斯特·劳埃德 (William Forster Lloyd) 在一本小册子中首次描述了这种现象，当时他讨论了在村庄公共区域过度放牧牛群问题。

Hardin argued that these situations pit short-term self-interest against the common good, and they end badly for everyone, resulting in overgrazing, overfishing, overpopulation, pollution, and other social and environmental problems.

哈丁认为，这些情况使短期自身利益与共同利益背道而驰，结果对每个人都不利，导致过度放牧、过度捕捞、人口过剩、污染以及其他社会和环境问题。

Decades of overgrazing, climate change-induced droughts, and poor farming practices are stripping not only the Sudanian grasslands of their once fertile topsoil but hundreds of other regions like it across the world.

几十年过度放牧、气候变化引发干旱和不良耕作方式，不仅使苏丹草原失去了曾经肥沃表土，也使世界上其他数百个类似地区失去了表土。

" Imbalance between the supply of and demand for animal forage lands leads to overgrazing, invasive species, and the increased risk of drought and wildfires -- all of which accelerate desertification and land degradation trends around the world, "

“动物饲草地供需失衡导致过度放牧、物种入侵以及干旱和野火风险增加，所有这些都加速了全球各地荒漠化和土地退化趋势。”