globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:6076515
论文题名:
西藏地区典型泥炭地土壤理化性质及其碳、氮、磷化学计量学特征
其他题名: Physicochemical Property of Soils in Typical Peatlands in Tibet Area and Their Stoichiometry Characteristics of Carbon, Nirtrogen and Phosphorus
作者: 吕永磊1; 梁文业1; 张仲胜2
刊名: 湿地科学
ISSN: 1672-5948
出版年: 2017
卷: 15, 期:4, 页码:41-53
语种: 中文
中文关键词: 泥炭地 ; 土壤 ; 西藏
英文关键词: C︰N︰P ; peatlands ; soil ; ratio of carbon, nitrogen and phosphorus ; Tibet
WOS学科分类: ECOLOGY
WOS研究方向: Environmental Sciences & Ecology
中文摘要: 以西藏地区10个典型泥炭地作为研究区,于2015年7月23~29日,采集土壤样品,测定其土壤理化性质,结合20世纪地矿部开展的泥炭资源调查报告关于西藏地区的调查结果,分析土壤碳、氮、磷的化学计量学特征。研究结果表明,西藏地区大多数泥炭地的造碳植物为小薹草(Carex parva)、具芒薹草(Carex aristulifera)和华扁穗草(Blysmus sinocompressus),泥炭地主要发育在湖盆、河漫滩、河道和扇缘洼地等。泥炭地土壤的平均灰分、有机质含量、腐殖酸含量、全氮含量、全磷含量和全钾含量分别为39.06%、58.99%、33.63%、1.55%、0.17%和0.81%。泥炭地土壤的平均碳氮比、碳磷比和氮磷比分别为36.2、363.0和9.7。相关分析结果表明,土壤中碳、氮、磷含量两两之间不相关,说明该地区泥炭地土壤中不存在稳定的C︰N︰P比例;年平均气温和年降水量与西藏泥炭地土壤中有机碳含量、全磷含量、碳氮比、碳磷比和氮磷比都不相关。
英文摘要: Deciphering soil properties, carbon, nitrogen and phosphorus ecological stoichiometric patterns and the potential affecting factors is the basis to reveal response mechanisms of peatlands in Tibet to climate change. Based on information of 10 typical peatlands and soil samples collected on July 23-29, 2015, soil organic carbon, total nitrogen, total phosphorus and potassium contents were analyzed. The results showed that herbaceous plants like Carex parva, Carex aristulifera and Blysmus sinocompressus are the main peat-forming materials, while moss is generally mixed with other plants. Most peatlands are observed in lake basin, flood plain, river channels and fan edge depressions. Mean contents of ash, soil organic matter, humic acid, total nitrogen, total phosphorus and total potassium are 39.06%、58.99%、33.63%、1.55%、0.17% and 0.81%, while mean soil ratio of carbon and nitrogen, ratio of carton and phosphorus and ratio of nitrogen and phosphorus in molecular were 36.2、363 and 9.72, respectively. No significant and pairwise correlations between soil organic carbon, total nitrogen and total phosphorus were found, which indicated that no consistent ratio of carbon, nitrogen and phosphorus existed in peatland soils of the Tibet. Also, no significant correlations were found between annual temperature or precipitation and soil organic carbon, total phosphorus, ratio of carbon and nitrogen, ratio of carton and phosphorus and ratio of nitrogen and phosphorus respectively, indicating that current climate change might have little influence on soil properties of peatlands in the Tibet.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/153120
Appears in Collections:气候变化事实与影响

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作者单位: 1.西藏自治区林业调查规划研究院, 拉萨, 西藏 850000, 中国
2.中国科学院东北地理与农业生态研究所, 中国科学院湿地生态与环境重点实验室, 长春, 吉林 130102, 中国

Recommended Citation:
吕永磊,梁文业,张仲胜. 西藏地区典型泥炭地土壤理化性质及其碳、氮、磷化学计量学特征[J]. 湿地科学,2017-01-01,15(4):41-53
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