Spatial distribution of phosphorus in marsh soils of a typical land/inland water ecotone along a hydrological gradient
文献类型：期刊论文
| 作者 | Xiao, Rong1; Bai, Junhong1; Gao, Haifeng1; Huang, Laibin1; Deng, Wei2
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| 刊名 | CATENA
 |
| 出版日期 | 2012-11-01 |
| 卷号 | 98期号:98页码:96-103 |
| 关键词 | Phosphorous Phosphorous forms Horizontal distribution Vertical distribution Hydrological gradient Land/inland water ecotone |
| ISSN号 | 0341-8162 |
| 通讯作者 | Bai JH |
| 合作状况 | 国内 |
| 中文摘要 | Profile samples from 0 to 70 cm depth were collected in five plant zones along a hydrological gradient in a typical land/inland water ecotone, Northeast China. Total phosphorous (TP), organic phosphorous (OP), inorganic phosphorous (IP) and available phosphorous (AP) were measured to study their horizontal and vertical distribution patterns in the land/inland water ecotone, as well as their important influencing factors such as soil organic carbon (SOC) and water level. Our results demonstrated that the levels of TP, OP, IP and AP were generally higher in the flooding zone (zone A), the over-wetted zone (zone B) and the drying and wetting zone (zone C), but the drying zones (zones D and E) contained lower P concentrations. Soil P was mainly concentrated in upper soils (0-30 cm) and the P levels decreased with depth, except for small accumulative peaks in the 50 to 70 cm soil increment for TP and OP in zone C and for IP and AP in zone A. Surface soils in zones D and E had a lower mean SOC:OP ratio than zones A. B and C, reflecting the higher probability of OP mineralization in the drying zones. However, higher mean values of the IP:OP and AP:TP ratios were found in zone A (P<0.05), indicating that increasing soil moisture may be the most important agent determining IP release rate and biological availability. The significantly positive correlations with soil organic matter (SOM) and clay content would contribute to P retention in zones A. B and C (P<0.01) where the soils contained relatively high organic matter and clay content. The results obtained in this study suggest that the distributions and dynamics of P forms in soil, especially in the land/inland water ecotone, can be significantly impacted by various biogeochemical and environmental factors (i.e., soil moisture, SOM, and clay content). (c) 2012 Elsevier B.V. All rights reserved. |
| 英文摘要 | Profile samples from 0 to 70 cm depth were collected in five plant zones along a hydrological gradient in a typical land/inland water ecotone, Northeast China. Total phosphorous (TP), organic phosphorous (OP), inorganic phosphorous (IP) and available phosphorous (AP) were measured to study their horizontal and vertical distribution patterns in the land/inland water ecotone, as well as their important influencing factors such as soil organic carbon (SOC) and water level. Our results demonstrated that the levels of TP, OP, IP and AP were generally higher in the flooding zone (zone A), the over-wetted zone (zone B) and the drying and wetting zone (zone C), but the drying zones (zones D and E) contained lower P concentrations. Soil P was mainly concentrated in upper soils (0-30 cm) and the P levels decreased with depth, except for small accumulative peaks in the 50 to 70 cm soil increment for TP and OP in zone C and for IP and AP in zone A. Surface soils in zones D and E had a lower mean SOC:OP ratio than zones A. B and C, reflecting the higher probability of OP mineralization in the drying zones. However, higher mean values of the IP:OP and AP:TP ratios were found in zone A (P<0.05), indicating that increasing soil moisture may be the most important agent determining IP release rate and biological availability. The significantly positive correlations with soil organic matter (SOM) and clay content would contribute to P retention in zones A. B and C (P<0.01) where the soils contained relatively high organic matter and clay content. The results obtained in this study suggest that the distributions and dynamics of P forms in soil, especially in the land/inland water ecotone, can be significantly impacted by various biogeochemical and environmental factors (i.e., soil moisture, SOM, and clay content). (c) 2012 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine |
| 类目[WOS] | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| 研究领域[WOS] | Geology ; Agriculture ; Water Resources |
| 关键词[WOS] | ORGANIC PHOSPHORUS ; LAKE-SEDIMENTS ; SEMIARID AGROECOSYSTEM ; AVAILABLE PHOSPHORUS ; REED DOMINATION ; DYNAMICS ; NITROGEN ; WETLANDS ; FOREST ; MATTER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000307924400010 |
| 公开日期 | 2013-05-22 |
| 源URL | [http://192.168.143.20:8080/handle/131551/5318]  |
| 专题 | 成都山地灾害与环境研究所_山区发展研究中心 |
| 作者单位 | 1.Beijing Normal Univ, State Key Lab Water Environm Simulat, Sch Environm, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Rong,Bai, Junhong,Gao, Haifeng,et al. Spatial distribution of phosphorus in marsh soils of a typical land/inland water ecotone along a hydrological gradient[J]. CATENA,2012,98(98):96-103. |
| APA | Xiao, Rong,Bai, Junhong,Gao, Haifeng,Huang, Laibin,&Deng, Wei.(2012).Spatial distribution of phosphorus in marsh soils of a typical land/inland water ecotone along a hydrological gradient.CATENA,98(98),96-103. |
| MLA | Xiao, Rong,et al."Spatial distribution of phosphorus in marsh soils of a typical land/inland water ecotone along a hydrological gradient".CATENA 98.98(2012):96-103. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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