over grazing

The process is often caused by overgrazing and other unsuitable farming techniques.

"This was not caused by people cutting trees or overgrazing, " says Columbia University's Alessandra Giannini, who led one of the analyses.

Even if the Great Green Wall survives, the land to the south of it can still turn to desert from drought or overgrazing.

Somalia is an ecological basket case, with overpopulation, overgrazing and desertification destroying its pastoral economy.

Further, in situ data documenting greater cover near water points implies livestock overgrazing is not causing degradation at water sources.

The negative component is a function of the additional overgrazing created by one more animal.

Overgrazing (again, widely practised by "traditional" cultures) causes soil erosion and turns fertile pasture into desert.

Widespread overgrazing disturbs water cycles, reducing replenishment of above and below ground water resources.

Each herdsman captures all the benefit from an extra animal but the cost of overgrazing is borne by all.

Most dust storms are linked to long droughts, exacerbated by human activities like overgrazing and deforestation.

But using marginal land for grazing is not as simple as it might sound. There is a risk of overgrazing .

Vast regions of grasslands on the Great Plains were depleted by overgrazing.

Overgrazing of pastures is leading to significant environmental damage to the rangeland.

and it is in spring that soil water content , soil organic matter and calcium and magnesium suffered more seriously damage from overgrazing.

Such regular stock movement prevented overgrazing of the fragile plant cover.

Overfishing or overgrazing (the "tragedy of the commons" ) will result.

deserts have expanded to overtake previously vegetated areas , accelerated in some cases by overgrazing of domesticated animals.

Authorities say the mob of 'roos is endangering a species of local lizard and the threatened gold sun moth through overgrazing.

So efficient, perhaps, that they may be overgrazing the waters, or worse.

The topsoil was already damaged by the overgrazing of cattle and sheep.

Overgrazing is the major cause of desertification worldwide.

There is soil erosion, overgrazing and disease transmission between livestock.

have been degraded, usually by overgrazing and the removal of plant cover by fire or the axe.

Influence of Overgrazing on Soil Erosion of Grassland.

China's expanding deserts now cover one-third of the country because of overgrazing, deforestation, urban sprawl and drought.

Article 12. Grasslands shall be used rationally and overgrazing prevented.

A way to reduce the damage from overgrazing is to move animals from one field to another.

and the key artificial factor was overgrazing.

In northern China, overgrazing and over farming lead to the loss of nearly a million acres of grassland each year to desert.

Cattle farmers who share a common pasture, for example, will increase their herds one by one until they destroy the pasture by overgrazing.

It's caused by overgrazing.

Effects of Overgrazing on Ecological and Environmental Construction and Measurement

Analysis of the Social and Economic Course of Grassland Overgrazing in Sunan Country Gansu province

Much of the northweatern vegetation has been damaged by overgrazing