دورية أكاديمية
Phosphorus Interactions with Iron in Undisturbed and Disturbed Arctic Tundra Ecosystems.
| العنوان: | Phosphorus Interactions with Iron in Undisturbed and Disturbed Arctic Tundra Ecosystems. |
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| المؤلفون: | Berens MJ; Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States., Michaud AB; School of Earth Sciences, Ohio State University, Columbus, Ohio 43210, United States.; Byrd Polar and Climate Research Center, Ohio State University, Columbus, Ohio 43210, United States.; Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine 02543, United States., VanderJeugdt E; Department of Biological Sciences, Kent State University, Kent, Ohio 44240, United States., Miah I; Department of Environmental Sciences, University of Toledo, Toledo, Ohio 43606, United States.; Department of Agricultural Chemistry, Sylhet Agricultural University, Sylhet 3100, Bangladesh., Sutor FW; Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, Vermont 05405, United States., Emerson D; School of Earth Sciences, Ohio State University, Columbus, Ohio 43210, United States., Bowden WB; Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, Vermont 05405, United States., Kinsman-Costello L; Department of Biological Sciences, Kent State University, Kent, Ohio 44240, United States., Weintraub MN; Department of Environmental Sciences, University of Toledo, Toledo, Ohio 43606, United States., Herndon EM; Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.; Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, Tennessee 37996, United States. |
| المصدر: | Environmental science & technology [Environ Sci Technol] 2024 Jul 02; Vol. 58 (26), pp. 11400-11410. Date of Electronic Publication: 2024 Jun 18. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Chemical Society Country of Publication: United States NLM ID: 0213155 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5851 (Electronic) Linking ISSN: 0013936X NLM ISO Abbreviation: Environ Sci Technol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Washington DC : American Chemical Society Original Publication: Easton, Pa. : American Chemical Society, c1967- |
| مواضيع طبية MeSH: | Phosphorus*/chemistry , Iron*/chemistry , Tundra*, Arctic Regions ; Ecosystem ; X-Ray Absorption Spectroscopy ; Soil/chemistry ; Geologic Sediments/chemistry |
| مستخلص: | Phosphorus (P) limitation often constrains biological processes in Arctic tundra ecosystems. Although adsorption to soil minerals may limit P bioavailability and export from soils into aquatic systems, the contribution of mineral phases to P retention in Arctic tundra is poorly understood. Our objective was to use X-ray absorption spectroscopy to characterize P speciation and associations with soil minerals along hillslope toposequences and in undisturbed and disturbed low-lying wet sedge tundra on the North Slope, AK. Biogenic mats comprised of short-range ordered iron (Fe) oxyhydroxides were prevalent in undisturbed wet sedge meadows. Upland soils and pond sediments impacted by gravel mining or thermokarst lacked biogenic Fe mats and were comparatively iron poor. Phosphorus was primarily contained in organic compounds in hillslope soils but associated with Fe(III) oxyhydroxides in undisturbed wet sedge meadows and calcium (Ca) in disturbed pond sediments. We infer that phosphate mobilized through organic decomposition binds to Fe(III) oxyhydroxides in wet sedge, but these associations are disrupted by physical disturbance that removes Fe mats. Increasing disturbances of the Arctic tundra may continue to alter the mineralogical composition of soils at terrestrial-aquatic interfaces and binding mechanisms that could inhibit or promote transport of bioavailable P from soils to aquatic ecosystems. |
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| فهرسة مساهمة: | Keywords: Fe redox cycling; X-ray absorption spectroscopy; biogenic Fe mats; phosphorus; soil disturbance; tundra soils |
| المشرفين على المادة: | 27YLU75U4W (Phosphorus) E1UOL152H7 (Iron) 0 (Soil) |
| تواريخ الأحداث: | Date Created: 20240618 Date Completed: 20240702 Latest Revision: 20240706 |
| رمز التحديث: | 20240706 |
| مُعرف محوري في PubMed: | PMC11223478 |
| DOI: | 10.1021/acs.est.3c09072 |
| PMID: | 38889135 |
| قاعدة البيانات: | MEDLINE |
Find this issue from the American Chemical Society | تدمد: | 1520-5851 |
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| DOI: | 10.1021/acs.est.3c09072 |