Authors: CUIYUE DONG
Abstract: Soil has high spatial variability. Under the change of water level, soil nutrient element content and enzyme activity do not show regular changes. Therefore, the effects of biological metabolism on soil nutrient element content and enzyme activity in the adult stage of Metasequoia glyptostroboides were proposed. The characteristics of the soil were extracted, the irreversibility, accumulation, concealment and refractory rationality of the nutrient element content in the soil were expounded. According to the soil characteristics, the relationship between the nutrient element content and enzyme activity in the soil was analysed. The pH value, organic matter, lead and manganese contents of the soil were determined, and the effects of biological metabolism of M. glyptostroboides on the nutrient content and enzyme activity of the soil were studied. The results showed that the content of nutrient elements in soil was relatively high after the biological metabolism of M. glyptostroboides in the adult stage, the infiltration rate of seedling soil changed, and the effects of different Metasequoia glyptostroboides roots on soil enzyme activities were different.
Keywords: Metasequoia glyptostroboides, adult, biological metabolism, seedling soil, nutrient element content, enzyme activity
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