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dc.contributor.authorHou, Enqing
dc.contributor.authorWen, Dazhi
dc.contributor.authorKuang, Yuanwen
dc.contributor.authorCong, Jing
dc.contributor.authorChen, Chengrong
dc.contributor.authorHe, Xianjin
dc.contributor.authorHeenan, Marijke
dc.contributor.authorLu, Hui
dc.contributor.authorZhang, Yuguang
dc.date.accessioned2019-07-05T12:32:58Z
dc.date.available2019-07-05T12:32:58Z
dc.date.issued2018
dc.identifier.issn0016-7061
dc.identifier.doi10.1016/j.geoderma.2017.11.041
dc.identifier.urihttp://hdl.handle.net/10072/380354
dc.description.abstractSoil organic phosphorus (P) dynamics is proposed to vary across regions. However, it remains unclear how it is driven by regional variations in environmental conditions. This study examined the variations in the amount and forms of organic P in the top 10 cm of mineral soils in natural broadleaved forests along a latitudinal gradient (18.4–40.8°N) and their environmental drivers. Soil organic P amount (total Po) was expressed in both absolute (i.e. the concentration) and relative (i.e. the proportion of total Po to total P) terms, and soil organic P forms was represented by the proportion of non-residual Po (to total Po) quantified using a modified Hedley P fractionation procedure. Soil total Po amount in both absolute and relative terms were lower at the low-latitude site (18.4°N) than at the high-latitude sites (25.6–40.8°N) and predominantly positively determined by soil total P. The proportion of non-residual Po significantly increased with decreasing latitude and was primarily negatively affected by soil pH, highlighting a strong pH effect on soil organic P forms. Both the amount and forms of soil organic P were also considerably affected by climate (i.e. precipitation and temperature) and some other soil properties (e.g. cations and organic carbon). Latitudinal variations in climate affected soil total Po concentration largely through their effects on soil total P, organic C, and P sorption capacity, however they affected soil organic P forms mainly through their effects on soil pH and also via soil cations, organic C, and P saturation status.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.publisher.placeNetherlands
dc.relation.ispartofpagefrom65
dc.relation.ispartofpageto74
dc.relation.ispartofjournalGeoderma
dc.relation.ispartofvolume315
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchOther environmental sciences not elsewhere classified
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchAgricultural, veterinary and food sciences
dc.subject.fieldofresearchcode41
dc.subject.fieldofresearchcode419999
dc.subject.fieldofresearchcode31
dc.subject.fieldofresearchcode30
dc.titleSoil pH predominantly controls the forms of organic phosphorus in topsoils under natural broadleaved forests along a 2500 km latitudinal gradient
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorChen, Chengrong


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