Effect of nitrogen and phosphorus addition on soil aggregation and its associated organic carbon

doi:10.1080/02757540.2021.1936512

	Effect of nitrogen and phosphorus addition on soil aggregation and its associated organic carbon
	Yuan, Ye 1; Gao, Shan 1; Dai, Xiaoqin 2; Chen, Fusheng 3; Wang, Huimin 2,4
刊名	CHEMISTRY AND ECOLOGY
	2021-06-08
页码	13
关键词	Nutrient addition aggregate iron oxides content clay content Chinese fir plantation
ISSN号	0275-7540
DOI	10.1080/02757540.2021.1936512
通讯作者	Yuan, Ye(yuanye_1985@ahnu.edu.cn)
英文摘要	Although 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.
资助项目	National Natural Science Foundation of China[31700415] ; Natural Science Foundation of Anhui Province[1808085QC60] ; Anhui Provincial Education Department[KJ2017A322]
WOS关键词	FERTILIZATION ; METAANALYSIS ; DEPOSITION ; STABILITY ; DYNAMICS ; IMPACTS ; BIOMASS ; CYCLE ; LAND
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000660350500001
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Anhui Provincial Education Department
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/164164]
专题	中国科学院地理科学与资源研究所
通讯作者	Yuan, Ye
作者单位	1.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
推荐引用方式 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.