干旱区生态环境知识资源中心(Arid): 青海省不同高寒草地土壤主要养分及可溶性有机碳特性研究

Arid

	青海省不同高寒草地土壤主要养分及可溶性有机碳特性研究
其他题名	A study of soil nutrient characteristics and soil soluble organic carbon levels in different types of alpine grassland in Qinghai Province
	张苗苗 1; 陈伟 2; 林丽 3; 张德罡 1; 吴玉鑫 1; 肖海龙 1
来源期刊	草业学报
ISSN	1004-5759
出版年	2019
卷号	28 期号:3 页码:20-28
中文摘要	为探索不同高寒草地类型中土壤有机碳、养分和可溶性有机碳的含量差异以及可溶性有机碳分布特征,以青海省4个高寒草地类型土壤0~10cm和10~20cm土层为研究对象,分析了土壤有机碳、全氮、全磷、全钾、可溶性有机碳含量,以及可溶性有机碳芳香性指数和腐殖化指数,并进一步探讨了可溶性有机碳含量与土壤有机碳、各养分含量之间的相关性。结果表明,不同高寒草地类型各土层土壤中全氮、有机碳、可溶性有机碳含量由高到低的顺序依次为:高寒草甸类>高寒草甸草原类>高寒草原类>高寒荒漠类,且不同类型之间差异显著(P<0.05)。随着土层的加深,土壤全氮、有机碳含量有降低趋势。不同类型高寒草地各土层土壤中可溶性有机碳的芳香性指数和腐殖化指数表现出与此相同的变化趋势。不同高寒草地各土层中可溶性有机碳与土壤全氮、有机碳含量之间均呈现出显著正相关关系(P<0.05)。综上所述,高寒草甸和高寒草甸草原土壤有机碳、全氮、可溶性有机碳含量较高,结构复杂。可溶性有机碳的芳香性指数和腐殖化指数在一定程度上能够反映土壤养分状况。
英文摘要	This study aimed to explore the differences in soil carbon,soil nutrients and soluble organic carbon,and their correlation with soil nutrient levels in 4different types of alpine grassland in Qinghai province.Measurements made included:soil organic carbon,total nitrogen,total phosphorus,total potassium,and soluble organic carbon in the 0-10cm and 10-20cm soil layers.Correlations between soluble organic carbon and organic carbon and nutrients were determined.The results showed that the ranking of the grassland types for contents of total nitrogen,organic carbon and soluble organic carbon in tested soil layers was alpine meadow>alpine meadow steppe>alpine steppe>alpine desert,with the differences being significant(P<0.05).As expected,the soil total nitrogen and organic carbon content tended to decrease with increasing soil depth.The soluble organic carbon aromaticity and humus indexes for the different alpine grassland types had the same rankings as for total nitrogen and organic carbon,above.There was a significant positive correlation between soluble organic carbon and soil total nitrogen and organic carbon(P<0.05).It was concluded that the contents of organic carbon,total nitrogen and soluble organic carbon in alpine meadow and alpine meadow steppe were high,and the structure of organic matter was complex.The soluble organic carbon aromaticity and humus indices were,to a certain degree,indicative of soil nutrient status.
中文关键词	高寒草地 ; 土壤有机碳 ; 土壤养分 ; 可溶性有机碳
英文关键词	alpine grassland soil organic carbon soil nutrient soil soluble organic carbon
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6450606
来源机构	中国科学院西北生态环境资源研究院 ; 甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238971
作者单位	1.甘肃农业大学草业学院, 兰州, 甘肃 730070, 中国; 2.兰州城市学院地理与环境工程学院, 兰州, 甘肃 730070, 中国; 3.中国科学院西北高原生物研究所, 西宁, 青海 810001, 中国
推荐引用方式 GB/T 7714	张苗苗,陈伟,林丽,等. 青海省不同高寒草地土壤主要养分及可溶性有机碳特性研究[J]. 中国科学院西北生态环境资源研究院, 甘肃农业大学,2019,28(3):20-28.
APA	张苗苗,陈伟,林丽,张德罡,吴玉鑫,&肖海龙.(2019).青海省不同高寒草地土壤主要养分及可溶性有机碳特性研究.草业学报,28(3),20-28.
MLA	张苗苗,et al."青海省不同高寒草地土壤主要养分及可溶性有机碳特性研究".草业学报 28.3(2019):20-28.