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Soil phosphorus composition and phosphatase activities along altitudes of alpine tundra in Changbai Mountains, China

文献类型：期刊论文

作者Chen Zhenhua1; Yang Xiaozhu1,2; Wei Kai1; Chen Lijun1
刊名CHINESE GEOGRAPHICAL SCIENCE
出版日期2016-02-01
卷号26期号:1页码:90-98
关键词Alpine Tundra Ecosystem Altitude Phosphatase Activity Phosphorus (p) Composition Solution P-31 Nuclear Magnetic Resonance (Nmr) Spectroscopy
ISSN号1002-0063
DOI10.1007/s11769-015-0786-6
英文摘要Alpine tundra ecosystems have specific vegetation and environmental conditions that may affect soil phosphorus (P) composition and phosphatase activities. However, these effects are poorly understood. This study used NaOH-EDTA extraction and solution P-31 nuclear magnetic resonance (NMR) spectroscopy to determine soil P composition and phosphatase activities, including acid phosphomonoesterase (AcP), phosphodiesterase (PD) and inorganic pyrophosphatase (IPP), in the alpine tundra of the Changbai Mountains at seven different altitudinal gradients (i.e., 2000 m, 2100 m, 2200 m, 2300 m, 2400 m, 2500 m, and 2600 m). The results show that total P (TP), organic P (OP), OP/TP, NaOH-EDTA extracted P and AcP, PD, and IPP activities over the altitude range of 2500-2600 m are significantly lower than those below 2400 m. The dominant extracted form of P is OP (73%-83%) with a large proportion of monoesters (65%-72%), whereas inorganic P is present in lower proportions (17%-27%). The activity of AcP is significantly positively correlated with the contents of soil OP, total carbon (TC), total nitrogen (TN), and TP (P < 0.05), indicating that the AcP is a more sensitive index for responding P nutrient storage than PD and IPP. Soil properties, P composition, and phosphatase activities decrease with increased altitude and soil pH. Our results indicate that the distribution of soil P composition and phosphatase activities along altitude and AcP may play an important role in P hydrolysis as well as have the potential to be an indicator of soil quality.
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000367016100009
出版者SPRINGER
源URL[http://210.72.129.5/handle/321005/122349]  
专题中国科学院沈阳应用生态研究所
通讯作者Chen Lijun
作者单位1.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Chen Zhenhua,Yang Xiaozhu,Wei Kai,et al. Soil phosphorus composition and phosphatase activities along altitudes of alpine tundra in Changbai Mountains, China[J]. CHINESE GEOGRAPHICAL SCIENCE,2016,26(1):90-98.
APA Chen Zhenhua,Yang Xiaozhu,Wei Kai,&Chen Lijun.(2016).Soil phosphorus composition and phosphatase activities along altitudes of alpine tundra in Changbai Mountains, China.CHINESE GEOGRAPHICAL SCIENCE,26(1),90-98.
MLA Chen Zhenhua,et al."Soil phosphorus composition and phosphatase activities along altitudes of alpine tundra in Changbai Mountains, China".CHINESE GEOGRAPHICAL SCIENCE 26.1(2016):90-98.

入库方式： OAI收割

来源：沈阳应用生态研究所

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