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.
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.
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.
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.
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。
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.
同时就过度放牧对植被的影响进行了论述。
The influence of pasturing on the vegetation was also analyzed and is discussed.
放牧的草场越来越少而过度放牧引起土壤的流失。
Grazing land is scarce while overgrazing causes soil erosion.
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.
过度放牧是造成中国草地生态系统破坏的重要原因。
Overgrazing was found to be another important contributing factor in grassland degradation in China.
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.
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.
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.
造成这一结果的原因是人口压力过大导致过度放牧、盲目开垦等。
The stress of population resulted in the over-grazing and over-reclamation.
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.
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.
导致沙漠化的主要因素有四个：过度种植，过度放牧，过分砍伐，过度灌溉。
Four specific activities have been identified as major contributors to the desertification processes: overcultivation, overgrazing, firewood gathering, and over irrigation.
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.
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.
研究了阿拉善荒漠草地过度放牧和围封恢复对地上植被特征及土壤有机碳的影响。
The study was carried out within the Alxa desert steppe, Inner Mongolia of north China, Alxa desert steppe is one of serious degraded areas in the semiarid zone of north China.
大部分的沙尘暴都源于长期干旱，并由于诸如过度放牧和伐木等人类活动而更加恶化。
Most dust storms are linked to long droughts, exacerbated by human activities like overgrazing and deforestation.
因为津贴的废除，导致开荒毁林以及过度放牧的停止，曾经这是水土流失的主要原因。
Thee removal of subsidies stopped land-clearing and over-stocking, because they in the past had been the principal causes of soil erosion.
在造成草地退化的众多因素中，可控因素主要有过度放牧、垦殖、樵采以及政策的导向。
There were many factors contributing to the grassland degeneration, but some were artificial control and others were not.
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.
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.
当我们清扫大街，燃烧或者过度放牧时，更多的粉尘，这也是一种喷雾状物，参与大气循环。
More dust, also an aerosol , circulates in the atmosphere when land is cleared, burned or overgrazed.
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.
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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