在一个地区过度放牧的后果是植被覆盖的减少和对土壤的践踏和粉碎。
The consequences of an excessive number of livestock grazing in an area are the reduction of the vegetation cover and the trampling and pulverization of the soil.
大量兔子导致的过度放牧现在威胁着岛上的农业。
Overgrazing by the enormous population of rabbits now menaces the island's agriculture.
草场的增加和随之而来的过度放牧导致了稀树草原的扩张。
Increase in pastureland and subsequent overgrazing have resulted in an expansion of savanna.
导致沙漠化的主要因素有四个：过度种植、过度放牧、过度砍伐、过度灌溉。
Four specific activities have been identified as major contributors to the desertification processes: overcultivation, overgrazing, firewood gathering, and overirrigation.
几十年来，气候变暖使得绿地消失殆尽，过度放牧又加剧了草原的沙漠化。
The grasslands are dying out, as decades of warming temperatures-exacerbated by overgrazing-turn prairie into desert.
大面积过度放牧扰乱了水循环、减少了地表和地下水资源的补充。
Widespread overgrazing disturbs water cycles, reducing replenishment of above and below ground water resources.
畜群同时造成大范围土地退化，其中20%的牧场因过度放牧、土壤板结和侵蚀而退化。
At the same time herds cause wide-scale land degradation, with about 20 percent of pastures considered as degraded through overgrazing, compaction and erosion.
因为牧场太少了，过度放牧的现象很严重。
Because there are fewer pastures, they are more heavily used.
历经千年的洗礼，在面对地震、气候变暖、森林砍伐、过度放牧等自然或人为的变迁时，它们依旧脆弱不堪。
While they are strong enough to have survived thousands of years on earth, they are so fragile in the face of earthquakes, global warming, deforestation, overgrazing as well as natural erosions.
砍伐森林建牧场，以及过度放牧导致土壤中碳含量的净流失等因素都会产生大量的二氧化碳。
Livestock farming also accounts for a lot of carbon dioxide, mostly from forests being cut down for pasture, or when overgrazing and the resulting soil erosion causes a net loss of carbon from soils.
由于季节性旱涝，过度放牧和火灾，这里树木稀少。
Trees are sparse on grasslands due to seasonal floods and droughts, heavy grazing, and fires。
后来由于过度放牧、开垦粮田和持续干旱，西北草原进一步遭到破坏，袭击北京的沙尘暴增加到一年十多次。
After that, overgrazing and ever-lasting drought had further devastated northern west prairie.
过度放牧（这同样也被“传统的”耕作所广泛采用）导致了土壤浸蚀，并把肥沃的草原变成了沙漠。
Overgrazing (again, widely practised by "traditional" cultures) causes soil erosion and turns fertile pasture into desert.
过度捕捞和过度放牧(悲剧的共同体)将会是结果。
Overfishing or overgrazing (the "tragedy of the Commons") will result.
对每个牧民来说，多放牧一头牲口带来的好处都归自己所有，而过度放牧的成本则有所有牧民一起承担。
Each herdsman captures all the benefit from an extra animal but the cost of overgrazing is borne by all.
有些农田被牲口过度放牧亏损，暴雨淹没了田地，缺乏氮气造成玉米的秆子矮小。
Heavy rains flooded the land. A lack of nitrogen in the soil made the corn stalks puny.
减少过度放牧的危害的方法是将动物从一片土地迁移到另外一个。
A way to reduce the damage from overgrazing is to move animals from one field to another.
轻度放牧或过度放牧都可以引起人工草地的退化演替。
Light grazing or over grazing lead to deteriorative succession of artificial sward.
四项具体活动已被确定为对荒漠化的主要导致的过程：过度农垦，过度放牧，薪柴采集和过度灌溉。
Four specific activities have been identified as major contributors to the desertification processes: over-cultivation, overgrazing, firewood gathering, and over-irrigation.
曾有一段时期，由于过度放牧和肆意毁林，山区生态环境遭到严重破坏，动植物资源明显减少。
At one time, due to excessive herding and reckless deforestation, the ecological environment of the mountain area was severely damaged, and the resources of animals and plants significantly dwindled.
大多数干燥和半干燥地带的植被和土壤严重退化，其原因通常是过度放牧及滥砍滥伐和火灾。
The vegetation and soils in most of the arid and semiarid zones have been degraded, usually by overgrazing and the removal of plant cover by fire or the axe.
在中国，大地被过度放牧导致一个持续增长的沙漠如荒地以及沙尘暴。
In China, the land is overgrazed causing an ongoing increase of desert like wasteland and dust bowls.
罗尼·魏努力指出，气候变化和过度放牧给亚洲腹地的游牧社区造成了严重的负面影响，然而共同管理方案是一条解决之道。
Climate change and overgrazing have had negative impacts on pastoralist communities in central Asia, writes Ronnie Vernooy. But co-management schemes point towards a solution.
在旱季期间，如果没有降雨，后期下降草死过，甚至是过度放牧，草场可造成你的草场条件，在高风险，为有毒植物。
During a dry period without rainfall, late fall as the grass is dying off, even an overgrazed pasture can cause your pasture conditions to be at high risk for poisonous plants.
这样的循环导致在世界的某些地方大范围的人为沙漠化，这主要是由于过度放牧并伴随着自然干旱的发生。
It is such a cycle that has led to widespread desertification in some parts of the world, primarily through overgrazing that can be compounded by naturally occurring droughts.
而种植苜蓿样地等节跳虫科个体密度最大，其大小是过度放牧样地等节跳虫科的 3.33倍。
At sites of the planting alfalfa treatment, the individual density of Isotomidae reached 3.33 times of over grazing treatment.
而种植苜蓿样地等节跳虫科个体密度最大，其大小是过度放牧样地等节跳虫科的 3.33倍。
At sites of the planting alfalfa treatment, the individual density of Isotomidae reached 3.33 times of over grazing treatment.
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