Overgrazing by the enormous population of rabbits now menaces the island's agriculture.
大量兔子导致的过度放牧现在威胁着岛上的农业。
2
Increase in pastureland and subsequent overgrazing have resulted in an expansion of savanna.
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。
3
Four specific activities have been identified as major contributors to the desertification processes: overcultivation, overgrazing, firewood gathering, and overirrigation.