本研究旨在通过实验分析对比有无麋鹿活动情况下,几个典型的麋鹿栖息地的含水量、有机质、pH、电导率、烘干全盐量、水解氮、有效磷、速效钾,探讨麋鹿日常生活对土壤理化性质的影响.结果发现,在有限的圈养和半散放状态下,麋鹿活动常可降低土壤含水量,提高有机质含量;提高pH值含量,利于缓解酸性土壤酸化程度,但可加剧已碱化土壤的盐碱化程度;提高电导率、烘干全盐含量和土壤盐渍化程度;麋鹿活动还使水解性氮、有效磷和速效钾含量升高,使土壤中的植物可利用的营养元素含量增加.在自然资源丰富、容纳能力强的野放和半野放环境状态下,麋鹿集群活动反而会降低土壤有机质含量,另外,低密度的野生种群活动较高密度种群可有效减缓土壤盐渍化进程.
This study aims to explore how the daily life of E. davidianus affects the soil physical and chemical properties by analyzing water content, organic matter, pH, conductivity, drying salt content, hydrolysis nitrogen, available phosphorus and available potassium in soil of several typical habitats disturbed by E. davidianus activities. The results show that under the limited captive and semi loose state, E. davidianus activities reduced soil water content, increase soil organic matter content. The pH levels were raised by the animal activities. It alleviated the soil acidicity, but increased soil alkalization degree. E. davidianus′ activities raised conductivity value and drying salt content, and thus increased the degree of soil salinization. In addition, hydrolysis nitrogen, available phosphorus and available potassium in soil were increased by E.davidianus activities, leading to the increase of the plant available nutrient content in soil. Under the wild and semi wild environment with plenty of natural resources and strong capacity, high density of E.davidianus reduced soil organic matter content, while the low density of the wild population effectively slowed down the process of soil salinization.
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