Fewer otters would have allowed sea urchin populations on which the otters preyed to expand and the urchins' grazingpressure on kelp forests to increase.
海獭的减少会使海胆的数量增加,因为海獭以此为食,从而增加海胆对海藻林的食草压力。
2
Decrement of the community biomass with the grazingpressure was the key reason for the positive and negative correlation.
群落生物置随牧压增大而降低是导致群落蒸发和蒸腾与牧压呈正、负相关的主要原因。
3
The paper analyzes the correlation among grazingpressure, present productivity and animal carrying capacity of the grasslands in Siziwang Banner, Proposes some suggestions for grassland management.