【摘要】 以长白山高山冻原为研究对象,对土壤碳和氮、磷、硫养分在不同海拔和不同植被类型间的变化进行研究。经试验分析和数据处理,得出以下结论:海拔和所测试的土壤理化因子都高度相关;不同植被类型下土壤理化因子差异显著(除全硫)(p<0.05);全碳和全氮在土壤表层(0~10 cm)的含量大于10~20 cm的土层,而全磷和全硫含量在10~20 cm土层明显大于土壤表层0~10 cm;长白山高山冻原(15195 hm2)土壤中(0~20 cm)全碳、全氮、全磷和全硫储存分别为3134613 t、57060.82 t、14413.35 t和23099.64 t;土壤表层(0~10 cm)储量所占的比例分别是59.3%、57.9%、47.4%和49.1%。更多还原

【Abstract】 The spatial distribution of soil carbon and nutrients in the alpine tundra Changbai Mountains were discussed.The results indicated that the altitude and soil properties were highly related.The soil properties were significantly different under different vegetation types(p<0.05) except soil total sulphur.The contents of total carbon and nitrogen were higher in the surface soil(010 cm) than in the soil depth of 10-20 cm and the contents of total phosphorus and sulfur were lower in the surface soil than in the soil depth of 10-20 cm.The total storage of carbon,nitrogen,phosphorus and sulfur in entire alpine tundra of Changbai Mountains were,respectively,3134613 t,57060.82 t,14413.35 t and 23099.64 t and the percentage of nutrient accumulation in the surface soil amounted for 59.3%,57.9%,47.4% and 49.1%.更多还原