沙地生态系统中蚂蚁活动与地表植被及土壤环境间的互作关系

Interactions among ant activity,ground vegetation and soil conditions in the sandy ecosystem

动物扰动与植被和土壤环境的之间互作关系是土壤生态系统的重要一环,对植被结构、动物分布和土壤特性具有重要的调节作用,对沙地生态系统恢复过程具有不可估量的影响。文中根据在科尔沁沙地土壤动物的研究结果,总结了地表植被和土壤条件对蚂蚁活动分布的影响,分析了蚂蚁活动对植被分布、结构和土壤性状的反馈作用,详细地探讨了蚂蚁筑丘活动与植被及土壤之间的互作关系及其在流沙固定过程中的重要价值。另外针对当前对沙地生态系统中土壤动物及其作用研究还处于起步阶段,认为将来应该加强土壤动物群落中关键类群如蚂蚁活动所引起的对土壤种子库和其它土壤生物的影响机制研究,加强蚂蚁活动在沙地生态系统物质循环和能量流动中扮演的重要角色研究。

The interactions among animal disturbances,vegetation and soil were an essential part of soil ecosystem,which could regular the vegetation structure,animal distribution and soil properties and had an important value in the restoration process of sandy ecosystem.Based on the results of soil animal in Horqin Sandy Land,the effects of vegetation and soil conditions on the ant activities were outlined,and the feedback of ant activities was discussed on vegetation and soil properties.In addition,the interactions between ant disturbances,vegetation and soil environment were explored on the stabilization of mobile dunes.On this base,the effect of ant nest-building activities need further to be studied on soil seed bank and soil organism,together with the role of ants in the process of material recycling and energy turnover.