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Effect of nitrogen and phosphorus addition on soil aggregation and its associated organic carbon
Yuan, Ye1; Gao, Shan1; Dai, Xiaoqin2; Chen, Fusheng3; Wang, Huimin2,4
2021-06-08
Source PublicationCHEMISTRY AND ECOLOGY
ISSN0275-7540
Pages13
Corresponding AuthorYuan, Ye(yuanye_1985@ahnu.edu.cn)
AbstractAlthough the response of plant productivity and soil biogeochemical processes to nutrient addition has been widely investigated, little is known about the effects of N and P addition on soil aggregate fractions, an important indicator of soil organic C stability. We investigated the effects of exogenous N and P inputs on soil aggregates and their associated organic C in a 6-year fertilisation experiment in a subtropical Chinese fir (Cunninghamia lanceolata) plantation. A wet sieving method was used to determine the aggregate size distribution. Our results showed that the most abundant aggregate was the macroaggregate, ranging between 59% and 74%. The least abundant fraction was the smallest (silt and clay), ranging between 10% and 15%. Neither the soil aggregate fractions nor their associated organic C differed significantly after 6 years of N and P addition at the 0.05 level. In contrast, the oxalate-extractable iron Fe and pyrophosphate-extractable Fe of 0-10 cm soil were significantly decreased by P addition; this may alter aggregate formation over longer periods. Thus, future studies should examine the effects of nutrient addition on aggregates over a longer period. In particular, more attention should be paid to the effects of P addition in subtropical forests.
KeywordNutrient addition aggregate iron oxides content clay content Chinese fir plantation
DOI10.1080/02757540.2021.1936512
WOS KeywordFERTILIZATION ; METAANALYSIS ; DEPOSITION ; STABILITY ; DYNAMICS ; IMPACTS ; BIOMASS ; CYCLE ; LAND
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31700415] ; Natural Science Foundation of Anhui Province[1808085QC60] ; Anhui Provincial Education Department[KJ2017A322]
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Anhui Provincial Education Department
WOS Research AreaBiochemistry & Molecular Biology ; Environmental Sciences & Ecology
WOS SubjectBiochemistry & Molecular Biology ; Ecology ; Environmental Sciences
WOS IDWOS:000660350500001
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/164165
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYuan, Ye
Affiliation1.Anhui Normal Univ, Sch Ecol & Environm, Prov Key Lab Biot Environm & Ecol Safety Anhui, Wuhan, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Model, Qianyanzhou Ecol Res Stn, Beijing, Peoples R China
3.Jiangxi Agr Univ, Coll Forestry, Collaborat Innovat Ctr Jiangxi Typical Trees Cult, Nanchang, Jiangxi, Peoples R China
4.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Yuan, Ye,Gao, Shan,Dai, Xiaoqin,et al. Effect of nitrogen and phosphorus addition on soil aggregation and its associated organic carbon[J]. CHEMISTRY AND ECOLOGY,2021:13.
APA Yuan, Ye,Gao, Shan,Dai, Xiaoqin,Chen, Fusheng,&Wang, Huimin.(2021).Effect of nitrogen and phosphorus addition on soil aggregation and its associated organic carbon.CHEMISTRY AND ECOLOGY,13.
MLA Yuan, Ye,et al."Effect of nitrogen and phosphorus addition on soil aggregation and its associated organic carbon".CHEMISTRY AND ECOLOGY (2021):13.
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