IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Alternative TitleCharacteristics of nitrogen and phosphorus transportation through runoff in a typical ecological-hydrological unit of hilly area of purple soil
王超1,2; 赵培1; 高美荣1
Corresponding Author赵培
Source Publication水利学报
Other Abstract



Abstract:This study was carried out at an agriculture-town-forestry headwater watershed in Hilly area of purple soil. In order to understand the hydrological pathways of nitrogen and phosphorus loss in this Typical Ecology-Hydrology Unit,water flow,sediment,N and P were monitored continuously in three storms. Results show that suspended sediment (SS) loss mainly occurred in the early storm flow and SS concentration peaks was synchronous with rainfall intensity. The impact of the N and P pollution from town mainly contributed to the early runoff which was the reason for high ammonium-nitrogen (AN). Particulate nitrogen/dissolved nitrogen ratio (PN/DN) of most samples were less than 1 and particulate phosphorus/dissolved phosphorus ratio (PP/DP) ranged from 1.1 to 30.2 indicating that nitrogen loss was mainly in dissolved
form and the phosphorus loss was mainly though sediment. Both peaks of the two ratios occurred when the rain intensity was high. Construction of wetland in ditches combined with grit chamber could be effective on N and P loss control in this region.

Keyword紫色土丘陵区 土壤侵蚀 氮磷流失 降雨-径流
Subject AreaX143
Indexed ByEI ; CSCD ; 北大中文核心
Funding Organization国家自然科学基金项目(41101202);国家重点基础发展计划(973)项目(2012CB417101)
Accession numberAccession number:20133216587852
Citation statistics
Cited Times:12[CSCD]   [CSCD Record]
Document Type期刊论文
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
王超,赵培,高美荣. 紫色土丘陵区典型生态-水文单元径流与氮磷输移特征[J]. 水利学报,2013,44(6):748-755.
APA 王超,赵培,&高美荣.(2013).紫色土丘陵区典型生态-水文单元径流与氮磷输移特征.水利学报,44(6),748-755.
MLA 王超,et al."紫色土丘陵区典型生态-水文单元径流与氮磷输移特征".水利学报 44.6(2013):748-755.
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