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为了解浙江省西北部丘陵地区森林土壤水溶性有机碳含量及动态规律,以达到成熟林状态的次生林和杉木林为对象,分别对其春、夏、秋、冬4个季节的0～10、10～20cm土层水溶性有机碳含量进行了研究。结果表明:1)0～10和10～20cm土层,次生林与杉木林水溶性有机碳含量没有显著差异;2)次生林和杉木林土壤水溶性有机碳含量季节动态基本一致,均表现为冬季>春季>秋季>夏季;3)0～10和10～20cm土层次生林与杉木林水溶性有机碳含量与土壤温度、降水量均呈显著负相关,与土壤湿度相关性不显著,与凋落物量呈正相关,且在0～10cm土层显著。
In order to understand the content and dynamics of soil dissolved organic carbon in the hilly areas of northwestern Zhejiang Province, the secondary forest and Chinese fir plantation which reached the state of mature forest were selected as experimental materials. The soil water-soluble organic carbon contents in the four seasons of spring, summer, autumn and winter were 0-10, The content of water-soluble organic carbon in 10 ~ 20cm soil layer was studied. The results showed that: 1) There was no significant difference in the contents of water-soluble organic carbon between the secondary and the Chinese fir forests in 0-10 and 10-20 cm soil layers; 2) The seasonal dynamics of soil dissolved organic carbon in the secondary and Cunninghamia lanceolata forests were basically the same, Spring> autumn> summer; 3) There was a significant negative correlation between soil organic matter content and soil temperature and precipitation in 0 ~ 10 and 10 ~ 20 cm soil layers and no significant correlation with soil moisture and litter mass Related, and significant in 0 ~ 10cm soil layer.