黔北喀斯特不同演替阶段森林土壤的有机碳储量
发布时间：2019-05-31 18:12
【摘要】：【目的】为喀斯特区域的生态政策和生态补偿提供重要的科技支撑。【方法】采用空间代替时间的方法分析人工林和不同森林演替阶段的土壤固碳能力。【结果】与森林演替顶级阶段相比,人工林土壤固碳潜力较大;与年龄相近的演替初期生态系统比较,人工林能够快速地增加较深层(10~50 cm)土壤有机碳的含量;随着森林年龄的增加,表层(0~10 cm)土壤有机碳呈增加趋势,演替初级阶段土壤中的有机碳占37.96%,演替中期的占32.73%,演替顶级的占31.02%;人工林0~10 cm土层有机碳占26.26%。【结论】实施退耕还林进行人工造林能够较快地增加土壤有机碳的含量,而且能够增加较深土层的有机碳的含量。
[Abstract]:[objective] to provide important scientific and technological support for ecological policy and ecological compensation in Karst region. [methods] Spatial instead of time method was used to analyze the soil carbon sequestration ability of plantations and different forest succession stages. [results] Compared with the top stage of forest succession, Soil carbon sequestration potential of plantation is great. Compared with the early succession ecosystem with the same age, the plantation could rapidly increase the content of soil organic carbon in the deeper layer (10 脳 50 cm). With the increase of forest age, the soil organic carbon in the surface layer (0 鈮，
本文编号：2489920
[Abstract]:[objective] to provide important scientific and technological support for ecological policy and ecological compensation in Karst region. [methods] Spatial instead of time method was used to analyze the soil carbon sequestration ability of plantations and different forest succession stages. [results] Compared with the top stage of forest succession, Soil carbon sequestration potential of plantation is great. Compared with the early succession ecosystem with the same age, the plantation could rapidly increase the content of soil organic carbon in the deeper layer (10 脳 50 cm). With the increase of forest age, the soil organic carbon in the surface layer (0 鈮，
本文编号：2489920
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