Assessing field vulnerability to phosphorus loss in Beijing agricultural area using Revised Field Phosphorus Ranking Scheme
文献类型：期刊论文
| 作者 | Li Qi; Chen Li-ding; Qi Xin; Zhang Xin-yu; Ma Yan; Fu Bo-jie |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2007 |
| 卷号 | 19期号:8页码:977-985 |
| 关键词 | phosphorus loss risk assessment field scale revised phosphorus ranking scheme management strategy |
| 英文摘要 | Guanting Reservoir, one of the drinking water supply sources of Beijing, suffers from water eutrophication. It is mainly supplied by Guishui River. Thus, to investigate the reasons of phosphorus (P) loss and improve the P management strategies in Guishui River watershed are important for the safety of drinking water in this region. In this study, a Revised Field P Ranking Scheme (PRS) was developed to reflect the field vulnerability of P loss at the field scale based on the Field PRS. In this new scheme, six factors are included, and each one was assigned a relative weight and a determination method. The affecting factors were classified into transport factors and source factors, and, the standards of environmental quality on surface water and soil erosion classification and degradation of the China were used in this scheme. By the new scheme, thirty-four fields in the Guishui River were categorized as "low", "medium" or "high" potential for P loss into the runoff. The results showed that the P loss risks of orchard and vegetable fields were higher than that of corn and soybean fields. The source factors were the main factors to affect P loss from the study area. In the study area, controlling P input and improving P usage efficiency are critical to decrease P loss. Based on the results, it was suggested that more attention should be paid on the fields of vegetable and orchard since they have extremely high usage rate of P and high soil test of P. Compared with P surplus by field measurements, the Revised Field PRS was more suitable for reflecting the characteristics of fields, and had higher potential capacity to identify critical source areas of P loss than PRS. |
| WOS记录号 | WOS:000248736600012 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22362]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Li Qi,Chen Li-ding,Qi Xin,et al. Assessing field vulnerability to phosphorus loss in Beijing agricultural area using Revised Field Phosphorus Ranking Scheme[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2007,19(8):977-985. |
| APA | Li Qi,Chen Li-ding,Qi Xin,Zhang Xin-yu,Ma Yan,&Fu Bo-jie.(2007).Assessing field vulnerability to phosphorus loss in Beijing agricultural area using Revised Field Phosphorus Ranking Scheme.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,19(8),977-985. |
| MLA | Li Qi,et al."Assessing field vulnerability to phosphorus loss in Beijing agricultural area using Revised Field Phosphorus Ranking Scheme".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 19.8(2007):977-985. |
入库方式： OAI收割
来源：生态环境研究中心
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