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天山北麓不同土地覆被下土壤有机碳垂直分布特征/Vertical Distribution of Soil Organic Carbon in Different Land Cover Types in Northern Piedmont of the Tianshan Mountains[J]
Authors
中国科学院大学,北京100049
中国科学院新疆生态与地理研究所,荒漠与绿洲生态国家重点实验室,新疆乌鲁木齐830011
+6 more
冯异星
李超凡
王渊刚
罗格平
范彬彬
韩其飞
Publication date
1 January 2013
Publisher
Abstract
利用全国第二次土壤普查数据,对天山北麓不同土地覆被类型下的土壤有机碳分布特征开展研究.结果表明:在0 ~100 cm土层天山北麓不同土地覆被类型的土壤碳密度差异显著,其均值处于3.65~35.73 kg·m-2.不同土地覆被类型的土壤碳密度垂直分布差异明显,其中耕地表层(0~20 cm)土壤碳密度占其总量的32.2%,其相邻土层的土壤碳密度占其总量比例的差值较小,最大差值仅为8.1%;高山亚高山草甸、森林和隐域植被表层(0~20 cm)土壤碳密度占其总量的40%以上;荒漠植被、裸地和稀疏植被表层(0~20 cm)土壤碳密度占其总量的比例低于37%,其中裸地与稀疏植被最低,仅为25.4%,其相邻土层土壤碳密度占其总量比例的最大差值低于4.0%
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Last time updated on 29/11/2016