放牧背景下短花针茅荒漠草原研究进展

摘要： 荒漠草原是脆弱生态系统，探讨荒漠草原对长期放牧等人为干扰的响应，为深入开展脆弱生态系统适应性研究提供更加可靠的理论依据。本文总结了近20年涉及短花针茅(Stipa breviflora)荒漠草原相关研究中的关键发现，从植物个体、种群、群落、生态系统以及土壤理化性质等方面归纳、总结并探讨了短花针茅荒漠草原对不同放牧利用方式和不同放牧强度的响应和适应特征，为有效节省后续研究人员查阅时间的同时，确定了知识薄弱的地方，提出了放牧利用下荒漠草原将来的几个重要研究方向和亟待解决的关键科学问题。

关键词: 荒漠草原, 短花针茅, 放牧利用方式, 放牧强度

Abstract: Desert steppe is a fragile ecosystem. Exploring the response of desert steppe to long-term climate change and human interference provides a more reliable theoretical reference for the research on the adaptability of fragile ecosystems. We reviewed key findings of research related to the desert steppe dominated by Stipa breviflora over the past 20 years. We summarized the response and adaptation characteristics of the desert steppe of Stipa breviflora to different grazing utilization and different grazing intensities from the perspectives of plant individuals,populations,communities,ecosystems and soil physicochemical properties. These results would effectively save time for subsequent researchers to consult and identify areas of weak knowledge. Several important topics and key scientific issues,which urgently need to be addressed in the following future,have proposed.

Key words: Desert steppe, Stipa breviflora, Grazing utilization, Grazing intensity

中图分类号: 

Q948.1

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