中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 尿素和包膜尿素对大棚内有害气体浓度变化的影响 应用生态学报 2006,17 (9) 1604-1608
Position: Home > Articles > Effects of urea and coated urea on harmful gases concentrations in plastic greenhouse. Chinese Journal of Applied Ecology 2006,17 (9) 1604-1608

尿素和包膜尿素对大棚内有害气体浓度变化的影响

作  者：
周细红;曾清如;毛小云;张利田;廖柏寒;铁柏清;廖宗文
单  位：
湖南农业大学资源环境学院;中国科学院生态环境研究中心 北京100085;中国科学院生态环境研究中心;华南农业大学资源环境学院
关键词：
尿素;包膜尿素;pH值;有害气体浓度;大棚
摘  要：
通过室内模拟和塑料大棚试验,研究了普通尿素和矿物改性包膜尿素对土壤pH值及大棚内有害气体浓度变化的影响.结果表明,在室内模拟试验条件下,两种氮肥施用初期均导致土壤pH值上升,并于1周后达到最大值,上升幅度超过50%,随后开始下降,至第5周回到初始水平.大棚内施用两种氮肥均使棚内NH3、NO2和O3浓度增加,其中施用普通尿素处理的NH3、NO2日均挥发量均大于矿物改性包膜尿素;施用普通尿素处理使大棚内土壤的NH3、棚内NO2和O3的最高浓度达到42.36、41.95和86.00μg.m-3.d-1,3种气体浓度均达到了有害气体伤害植物的临界阈值;NH3、NO2挥发强度受棚温和光照强度的影响,O3浓度随光照强度变化而改变.
译  名：
Effects of urea and coated urea on harmful gases concentrations in plastic greenhouse.
作  者：
ZHOU Xihong1,ZENG Qingru 1,2 ,MAO Xiaoyun3, ZHANG Litian2,LIAO Bohan1,TIE Baiqing1 ,LIAO Zongwen3 ( 1College of Resource and Environment,Hunan Agricultural University,Ch angsha 410128,China; 2Research Center for Eco-Environmental Sciences,Ch inese Academy of Sciences,Beijing 100085,China; 3College of Resaurces and Environment,South China Agricutural University, Guangzhou 510642,China).
关键词：
Urea,Coated urea,pH,Harmful gases concentration,Plastic greenhouse.
摘  要：
With simulation test and plastic greenhouse experiment,this paper studied the e ffects of urea and minerals-coated urea on the soil pH and harmful gases conce ntrations in plastic greenhouse. The results showed that under simulated conditi on,the application of these two N fertilizers led to an initial increase of soi l pH,which reached the maximum (an increment of >50%) within the first week an d dropped to the initial level by the end of the fifth week. In plastic greenhou se,applying urea and coated urea resulted in the increase of NH_3,NO_2 and O _3 concentrations. The daily volatilization amount of NH_3 and NO_2 was highe r in urea treatment than in coated urea treatment,and the highest value in urea treatment was 42.36 μg·m -3 ·d -1 for NH_3,41.95 μg·m -3 ·d -1 for NO_2,and 86.00 μg·m -3 ·d -1 for O_3. The volati lization intensity of NH_3 and NO_2 was influenced by temperature and sunlight ,while the O_3 concentration was influenced by sunlight.

相似文章

导出引用
计量
文章访问数: 6
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46