IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2012  > Vol9 No.3
Phosphorus sorption-desorption characteristics of ditch sediments from different land uses in a small headwater catchment in the central Sichuan Basin of China
Wang Zhenhua1,2,3; He Min1,4; Wang Tao1,2; Zhu Bo1,2
Corresponding AuthorZHU Bo
2012
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume9Issue:3Pages:441-450
SubtypeArticle
AbstractInvestigation of phosphorus (P) sorption-desorption characteristics of drainage ditch sediments is important for better understanding on sediment P transport behaviors in ditches. Surface ditch sediment samples were collected from headwater subcatchment of forestland, sloping cropland, paddy field, and residential area in a representative catchment in the central Sichuan Basin. These sediment samples were used for determination of P sorption-desorption characteristics by a batch equilibrium technique. Results showed that the maximum P sorption capacities (Q(m)) in the sediments ranged from 159.7 to 263.7 mg/kg, while higher Q(m) were observed in the ditch sediments from the paddy fields. The Q(m) was significantly and positively correlated with oxalate-extractable Fe and Al oxides (r=0.97 and 0.98, p < 0.01), clay fraction (r = 0.78, p < 0.05) and organic matter (r = 0.95, p < 0.01). Sediment pH, clay and organic matter influenced the P sorption through amorphous Fe and Al oxides. CaCO3 content was negatively correlated with the Q(m) (r = -0.83, p < 0.05), implying that saturated CaCO3 (> 50 g/kg) would not increase P sorption capacity in the ditch sediments. The ditch sediments featured a linear desorption curve, suggesting that P release risk would be enhanced with the increase of the P adsorption. The P desorption rate was positively correlated with Olsen P (r = 0.94, p < 0.01), but negatively related to the fine particle-size fractions (r = -0.92, p < 0.01), the sum of the amorphous Fe and Al oxides (r = -0.67, p < 0.05) and the P sorption capacity (r = -0.59, p < 0.05). The ditch sediments from residential area had a higher P release risk than that from the other ditches of forestland, sloping cropland and paddy field. The P sorption index (PSI) derived from single-point measurement was significantly correlated with the P sorption capacity (r = 0.99, p < 0.01), and could be used for estimating Q(m) as 1.64 times PSI plus 24.0 (Q(m) = 1.64 PSI + 24.0) for similar sediments with highly calcareous soils and sediments. Ditch cleaning and sediment removal for the ditch in residential area were recommended in this area to reduce the P release risk.
KeywordDitch Sediment Phosphorus Sorption-desorption Sediment Properties Land Use
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-009-2207-8
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordSOIL-PHOSPHORUS ; DRAINAGE DITCHES ; AGRICULTURAL DRAINAGE ; PHOSPHATE SORPTION ; CALCAREOUS SOILS ; WATER-QUALITY ; PURPLE SOILS ; ADSORPTION ; DYNAMICS ; RELEASE
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000304648300014
Funding OrganizationCAS Action Plan for the Development of Western China(KZCX2-XB3-09) ; Key Project in the National Science and Technology Pillar Program of China(2011BAD31B03)
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5112
CollectionJournal of Mountain Science_Journal of Mountain Science-2012_Vol9 No.3
山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Environm Evolvement & Regulat, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Changjiang River Sci Res Inst, Dept Water Environm Res, Wuhan 430010, Peoples R China
4.Sichuan Agr Univ, Fac Forestry, Yaan 625014, Peoples R China
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
Wang Zhenhua,He Min,Wang Tao,et al. Phosphorus sorption-desorption characteristics of ditch sediments from different land uses in a small headwater catchment in the central Sichuan Basin of China[J]. JOURNAL OF MOUNTAIN SCIENCE,2012,9(3):441-450.
APA Wang Zhenhua,He Min,Wang Tao,&Zhu Bo.(2012).Phosphorus sorption-desorption characteristics of ditch sediments from different land uses in a small headwater catchment in the central Sichuan Basin of China.JOURNAL OF MOUNTAIN SCIENCE,9(3),441-450.
MLA Wang Zhenhua,et al."Phosphorus sorption-desorption characteristics of ditch sediments from different land uses in a small headwater catchment in the central Sichuan Basin of China".JOURNAL OF MOUNTAIN SCIENCE 9.3(2012):441-450.
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