| 东江干支流水体氮素的时空变化特征 |
| |
| 引用本文： | 廖剑宇,彭秋志,郑楚涛,吕乐婷,江源,康慕谊.东江干支流水体氮素的时空变化特征[J].资源科学,2013,35(3):505-513. |
| |
| 作者姓名： | 廖剑宇 彭秋志 郑楚涛 吕乐婷 江源 康慕谊 |
| |
| 作者单位： | 1. 北京师范大学中药资源保护与利用北京市重点实验室,北京100875;北京师范大学地表过程与资源生态国家重点实验室,北京100875;北京师范大学资源学院,北京100875
2. 北京师范大学地表过程与资源生态国家重点实验室,北京100875;北京师范大学资源学院,北京100875 |
| |
| 基金项目： | 国家水体污染控制与治理科技重大专项(编号:2012ZX07501002-004);国家自然科学基金(编号:41271104)。 |
| |
| 摘 要： | 于2009年7月(丰水期)、2010年7月(丰水期)和2009年12月(枯水期)在东江干流及其主要支流的水体进行了3次系统水样采集,通过实验测定分析了水体中各形态氮的时空分布特征,结果表明:①东江干支流的氮素污染状况较为严重,TN平均浓度在(1.45～1.93) mg/L之间,整个干支流中Ⅳ-Ⅴ类水体达42％;②不同季节期间水体中氮含量存在一定变化,表现为丰水期TN、DIN、NH4-N和NO3-N浓度均小于枯水期;③按水体中氮含量划分水质等级,可将东江干流分为5个区段:东江源头低值区河段、枫树坝水库上游高值区河段、新丰江水库上游中值区河段、惠州地区上游中值区河段、惠州地区下游高值区河段,干流河段氮浓度空间变化表现为“低值-升高-下降-维持-再升高”趋势;④枫树坝水库上游高值区河段的氮来源主要来自干流沿途的农业面源污染,而惠州地区下游高值区河段的氮来源主要来自生活和工业直排点源污染,其中又以秋香江、西枝江、淡水河、石马河、沙河等支流的输入为主体.
|
| 关 键 词： | 东江流域 氮污染 时空分布 水体污染源 |
Temporal-Spatial Distribution of Nitrogen in the Dongjiang River and Its Tributaries |
| |
| LIAO Jianyu,PENG Qiuzhi,ZHENG Chutao,LYU Leting,JIANG Yuan and KANG Muyi.Temporal-Spatial Distribution of Nitrogen in the Dongjiang River and Its Tributaries[J].Resources Science,2013,35(3):505-513. |
| |
| Authors: | LIAO Jianyu PENG Qiuzhi ZHENG Chutao LYU Leting JIANG Yuan and KANG Muyi |
| |
| Institution: | Key Laboratory of Traditional Medicine Protection and Utilization, Beijing Municipality, Beijing Normal University, Beijing 100875, China;State Key Laboratory of Earth Surface Process and Resource Ecology,Beijing Normal University, Bejing 100875, China;College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China;Key Laboratory of Traditional Medicine Protection and Utilization, Beijing Municipality, Beijing Normal University, Beijing 100875, China;State Key Laboratory of Earth Surface Process and Resource Ecology,Beijing Normal University, Bejing 100875, China;College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China;Key Laboratory of Traditional Medicine Protection and Utilization, Beijing Municipality, Beijing Normal University, Beijing 100875, China;State Key Laboratory of Earth Surface Process and Resource Ecology,Beijing Normal University, Bejing 100875, China;College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China;Key Laboratory of Traditional Medicine Protection and Utilization, Beijing Municipality, Beijing Normal University, Beijing 100875, China;State Key Laboratory of Earth Surface Process and Resource Ecology,Beijing Normal University, Bejing 100875, China;College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China;Key Laboratory of Traditional Medicine Protection and Utilization, Beijing Municipality, Beijing Normal University, Beijing 100875, China;State Key Laboratory of Earth Surface Process and Resource Ecology,Beijing Normal University, Bejing 100875, China;College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China;State Key Laboratory of Earth Surface Process and Resource Ecology,Beijing Normal University, Bejing 100875, China;College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China |
| |
| Abstract: | |
| |
| Keywords: | Dongjiang River basin Nitrogen pollution Temporal-spatial distribution Water pollution source |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《资源科学》浏览原始摘要信息 |
| 点击此处可从《资源科学》下载免费的PDF全文 |
|
