The soil proved too infertile to sustain real pasture or arable crops.

这土壤被证明太贫瘠,不能真正用作放或种植作物。

Succession to a climax can be held at any stage by human intervention, such as grazing on chalk downland.

人为干扰可以阻止演替进行，例如过渡放。

Whether the selection of grassland grazing systems is reasonable has direct influences on sustainable utilization of grassland resources, bioenvironmental quality on grassland and herdmen's income.

草地放选择合理与否，直接影响草地资源可持续利用和草地生态境质量以及户经营收入。

Accord- ingly Apollo went into the service of Admetus, King of Thessaly, and pastured his flocks for him on the verdant banks of the river Amphrysos.

于是阿波罗做了色萨利国王阿德墨长工，负责在阿姆弗里索河绿茸茸堤岸上放国王羊群。

Where aridity, degeneration or soil erosion occurs as a result of overgrazing, users of the grasslands shall be required to reduce grazing and resow forage grass so as to restore vegetation.

因过量放造成草原沙化、退化、水土流失，草原使用者应当调整放强，补种草，恢复植被。