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放牧强度对草原植物群落多样性与生产力的影响研究进展 被引量:4

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摘要 草原植物的多样性和生产力对放牧干扰的反应是评价草原生态系统管理措施和制订相应的生态政策的重要依据。尽管多样性方面的中度干扰假说和生产力方面的放牧优化假说为众多生态学家所认可和接受,但实际的研究结果却并不一定符合这两个假说。出现这种情况的主要原因在于中度干扰和最优放牧率的度量标准、植物对干扰的响应时间不一致等。因此我们提出,今后的控制实验研究中,应该在充分考虑群落演替的阶段及其物种关系的基础上,保证具有合适的放牧梯度、足够长的实验时间。
出处 《中国科技成果》 2010年第24期21-24,共4页 China Science and Technology Achievements
基金 国家自然科学基金(91285A1001 80223A1001),中国科学院西部行动计划(二期)项目(69213G4002),锡林郭勒盟草业科学高效饲草料科研团队建设项目.
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