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| 华南坡地单场降雨氮素的迁移特征及来源分析 | |
| 引用本文： | 黎坤,江涛,卓慕宁,陈建耀,刘春玲.华南坡地单场降雨氮素的迁移特征及来源分析[J].湖泊科学,2011,23(6):888-892. |
| 作者姓名： | 黎坤 江涛 卓慕宁 陈建耀 刘春玲 |
| 作者单位： | 1. 中山大学水资源与环境研究中心,广州510275;华南地区水循环与水安全广东省普通高校重点实验室,广州510275 2. 广东省生态环境与土壤研究所,广州,510650 3. 水利部珠江水利委员会珠江水利科学研究院,广州,510611 |
| 基金项目： | 国家自然科学基金，广东省水利科技推广项目 |
| 摘 要： | 通过两个径流场的对比试验,研究了华南坡地氮素在某场降雨下的迁移特征和来源,结果表明,在没有施肥的情况下,氮素的迁移形态以铵氮、硝氮为主,总氮、硝氮和亚硝氮的迁移以地下下渗迁移为主,铵氮的迁移以地表迁移为主;在施放尿素的情况下,氮素的迁移形态以溶解态的尿素、铵氮和硝氮为主,总氮、溶解态尿素和铵氮的迁移以地表径流迁移为主,... |
| 关 键 词： | 氮素 迁移特征 氮沉降 来源 |
| 收稿时间： | 2011/2/18 0:00:00 |
| 修稿时间： | 5/4/2011 12:00:00 AM |
Transportation and sources of nitrogen in a single rainfall event in the hillsides of South China |
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| LI Kun,JIANG Tao,ZHUO Muning,CHEN Jianyao and LIU Chunling.Transportation and sources of nitrogen in a single rainfall event in the hillsides of South China[J].Journal of Lake Science,2011,23(6):888-892. | |
| Authors: | LI Kun JIANG Tao ZHUO Muning CHEN Jianyao and LIU Chunling |
| Institution: | Department of Water Resources and Environment, Sun Yat-sen University, Guangzhou 510275, P.R.China;Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong High Education Institute, Sun Yat-sen University, Guangzhou 510275, P.R.China,Department of Water Resources and Environment, Sun Yat-sen University, Guangzhou 510275, P.R.China;Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong High Education Institute, Sun Yat-sen University, Guangzhou 510275, P.R.China,Guangdong Institute of Eco-environment and Soil Sciences, Guangzhou 510650, P.R.China,Department of Water Resources and Environment, Sun Yat-sen University, Guangzhou 510275, P.R.China;Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong High Education Institute, Sun Yat-sen University, Guangzhou 510275, P.R.China and Pearl River Hydraulic Research Institute, Guangzhou 510611, P.R.China |
| Abstract: | Comparisons have been done on the experiments about the transportation and sources of nitrogen in the hillsides within a single rainfall event in south China.Results indicate that the release of the nitrogen is represented by ammonia nitrogen and ni-trate nitrogen.Transportation of the total nitrogen, nitrate nitrogen and nitrous nitrogen is dominated by infiltration process, and that of the ammonia nitrogen is dominated by the surface migration.In the case of the urea release, the migration of the nitrogen is dominated by the dissolved form of urea, ammonia nitrogen and nitrate nitrogen.The total nitrogen, dissolved urea and ammonia nitrogen is characterized by the surface migration.The transportation of the nitrate nitrogen, nitrous nitrogen and organic nitrogen is dominated by the underground infiltration process.Without human interference, rainfall-induced nitrogen deposition has become one of the main sources of the nitrogen in the experiment field. |
| Keywords: | Nitrogen transportation properties nitrogen deposition sources |
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