尕海湿地退化过程中土壤氮矿化变化特征及驱动因素
Characteristics and propelling forces of soil nitrogen mineralization in the Gahai wetland degradation process
[目的]探究退化湿地土壤氮矿化速率、土壤温湿度及相关酶活性的时空变化规律,分析土壤氮矿化随时空的变化特征及内在驱动因素。[方法]以尕海湿地未退化、轻度退化、中度退化、重度退化的沼泽草甸为研究对象,采用野外树脂芯原位培养方法,在 2020 年通过对植物生长初期(6-7 月)、生长盛期(7-9 月)、枯萎期(9-10 月)的土壤氮素矿化作用的研究,探讨湿地沼泽草甸退化过程中土壤氮矿化时空变化特征及其与土壤酶活性及环境因素之间的关系。[结果]1)随退化…查看全部>>
[Objective]To investigate the spatial and temporal variations of soil nitrogen mineralization rate,soil temperature and humidity,and related enzyme activities in degraded wetland ecosystems.To analyze the spatial and temporal changes of soil nitrogen mineralization rate,soil temperature and humidity,related enzyme activities in degraded wetlands,and the characteristics and internal driving factors of soil nitrogen mineralization change.[Methods]The non-degra…查看全部>>
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