英语语法分析

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。

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。

Four specific activities have been identified as major contributors to the desertification processes: overcultivation, overgrazing, firewood gathering, and overirrigation.

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。