IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Alternative TitleMicrobial Biomass Phosphorus is Closely Linked to Sodium Bicarbonate Extractable Organic P in Acid Soil of Mt. Gongga
孙宏洋1,2; 吴艳宏1,2; 李娜3; 周俊1,2; 邴海健1,2
Corresponding Author吴艳宏
Source Publication山地学报
Other Abstract



The available phosphorus ( P) is the most important component of soil P,which is widely used for assessing the nutrition of soil P in various ecosystems. However,few studies had been done for evaluation of its source in terms of field observation. Through field investigation and laboratory test,this study presented and evaluated the relation between available P fractions and soil microbial biomass P ( MBP) in acidic soils of Mt.Gongga. It showed that microbial functional group lipids could be used to explain the variations of available P profiles across all plots. More importantly,it exhibited a close connection between bacterial lipids and available P. Compared with other available P fractions determined by modified Hedley sequential method,only the sodium bicarbonate extractable organic P ( NaHCO3-Po) strongly related to MBP. Previous researches and our analysis can prove that the relation between MBP and NaHCO3-Po was direct: microbial cells cracking was the main reason for the relation. The results also revealed the relation between two methods ( i. e.,MBP determination method and Hedley sequential-P-fractionation method) : the MBP was a major component of NaHCO3-Po through Hedley sequential-P-fractionation method in the acid soil. It also highlighted reference values of Hedley sequential-Pfractionation
method in assessing the role of soil microorganism in bioavailability of P.

Keyword有效磷 Hedley磷连续提取法 微生物脂肪酸 海拔
Subject AreaS154.3
Indexed ByCSCD ; 北大中文核心
Funding Organization国家自然科学基金项目(41501281) ; 国家自然科学基金重点项目(41630751) ; 中国科学院山地表生过程与生态调控重点实验室开放基金
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
孙宏洋,吴艳宏,李娜,等. 贡嘎山酸性土壤微生物量磷紧密关联碳酸氢钠提取态有机磷[J]. 山地学报,2017,35(5):709-716.
APA 孙宏洋,吴艳宏,李娜,周俊,&邴海健.(2017).贡嘎山酸性土壤微生物量磷紧密关联碳酸氢钠提取态有机磷.山地学报,35(5),709-716.
MLA 孙宏洋,et al."贡嘎山酸性土壤微生物量磷紧密关联碳酸氢钠提取态有机磷".山地学报 35.5(2017):709-716.
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