[1]杜永欣*,达娃**,邱城.西藏"一江两河"农田土壤氮、磷变化动态分析[J].西藏农业科技,2017,(04):10-14.
 Du Yong-xin*,Dawa**,Qiu Cheng.Farmland Soil Nitrogen and Phosphorus Dynamic of One River and Two Streams in Tibet[J].Tibet Journal of Agricultural Sciences,2017,(04):10-14.
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西藏"一江两河"农田土壤氮、磷变化动态分析()
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西藏农业科技[ISSN:1005-2925/CN:54-1024/S]

卷:
期数:
2017年04期
页码:
10-14
栏目:
试验研究
出版日期:
2017-12-20

文章信息/Info

Title:
Farmland Soil Nitrogen and Phosphorus Dynamic of One River and Two Streams in Tibet
作者:
杜永欣*达娃**邱城
西藏自治区农牧科学院农业质量标准与检测研究所8西藏拉萨8850032
Author(s):
Du Yong-xin*Dawa**Qiu Cheng
Institute of Agricultural Product Quality Standard and Testing,TAAAS土Lhasa, China 850032
关键词:
面源污染农田土壤全氮全磷
Keywords:
non-point source pollutionfarmland soilT-NT-P
文献标志码:
A
摘要:
环境问题是我国亟待解决的重大问题,农业面源污染是我国所面临的环境问题之一。一江两河流域是我区主要的粮食生产基地,由于我区一江两河流域氮、磷肥使用量在不断增加,使氮素、磷素在土壤中不断积累,同时也增加了氮、磷的流失风险。本文主要对西藏一江两河流域农业主产区拉萨市 (墨竹工卡县、达孜县、曲水县)、山南市(贡嘎县、才囊县、乃东区)、日喀则市(江孜县、白朗县、桑珠孜区)农区农田土壤进行样品采集,分别采用了凯氏蒸饱法和知铮比色法测定了全氮、全磷的含量。并通过实验数据进行分析和讨论,分析 2015年与 2016年土壤氮素、磷素动态变化,从而判断一江两河流域农业面源污染的风险性。
Abstract:
Environmental problems, such as agricultural non-point source pollution is one of the environmental problems facing inour country. One River and Two Streams Basin in Tibet is the major area of agricultural production土 with the increasing of N土 Pfertilizer usage土 the accumulation of N and P in the soil may lead to the dangrous loss of N and P. The farmland soil samples inTibet like agriculture producing Lhasa (Maizhokunggar土 Dazi and Qushui)土 Shannan (Gonggar土Zhanang土 Naidong )土 and Xigaze(Jiangzi土 Bainang土 Sangzhuzi Rigion) were collect土 and T-N and T-P were determinated by distillation and molybdenum antimony colorimetric method. The experimental data of N and P was analyzed,and to discuss linear correlation of dynamic changes of soilN and P in 2015 and 2016土 therefore土 the cause of agricultural non-point source pollution was to be judged.

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备注/Memo

备注/Memo:
*作者简介:杜永欣(1990-),男,硕士,研究实习员。主要从事农业土壤环境研究。 Email:dyx291176075@163.com
**通讯作者:达娃(1964-),男,研究员。主要从事农业土壤环境研究。 Tel:13989082751
基金项目:"十二五"国家科技支撑计划课题(2012BAD15B04-4)、西藏自治区科技厅政策引导类计划农牧科技成果转化与示范项目
更新日期/Last Update: 2017-12-20