| 上海西郊麦期氮素淋溶定位研究 |
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| 引用本文： | 王少平,高效江,胡雪峰,俞立中,许世远.上海西郊麦期氮素淋溶定位研究[J].环境污染与防治,2002,24(2):68-70. |
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| 作者姓名： | 王少平 高效江 胡雪峰 俞立中 许世远 |
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| 作者单位： | 华东师范大学地理系,上海,200062 |
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| 基金项目： | 国家自然科学基金资助项目 (No:4983 10 70 )，上海市教委重点学科项目 |
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| 摘 要： | 上海西郊水旱轮作地中麦期的淋失研究表明，氮肥淋失的基本形态为硝酸盐氮，施肥后10d左右，形成硝酸盐氮淋溶的高峰期，在整个生育期间，随深度增加，硝酸盐氮浓度峰值向深层推移，但其渗漏深度为80cm左右。氮素的淋失主要发生在11月到次年3月的作物幼苗期，当追肥超过150kg/hm^2后，渗漏量增加很快。
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| 关 键 词： | 上海西郊 麦斯 氮素淋溶 定位研究 渗漏 化肥 土壤污染 |
| 修稿时间： | 2001年1月29日 |
Orientational sutdy of N leaching loss on winter wheat in west suburb of Shanghai |
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| Wang Shaoping,Gao Xiaojiang,Hu Xuefeng,et al..Orientational sutdy of N leaching loss on winter wheat in west suburb of Shanghai[J].Environmental Pollution & Control,2002,24(2):68-70. |
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| Authors: | Wang Shaoping Gao Xiaojiang Hu Xuefeng |
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| Institution: | Wang Shaoping,Gao Xiaojiang,Hu Xuefeng,et al. Geography Department,East China Normal University,Shanghai 200062 |
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| Abstract: | Leaching study of winter wheat in rotation crops fields showed that leaching nitrate was the basic form of N fertilizer in west surbub of Shanghai. Leaching fastigium was found after 10 days when wheat was fertilized. In the whole growth season of winter wheat, the concentration peak value of nitrate increased with depth, but limited to ablut 80 cm soil layer. Leaching loss of N happened mainly from Novermember to March of next year at the seedling stage of the plants. Leaching loss increased raplidly when N topdressing rates were over 150 kg/hm 2. |
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| Keywords: | West suburb of Shanghai Winter wheat Leaching loss |
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