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| 大气O_3浓度升高对麦季土壤和植株氮磷钾的影响 | |
| 引用本文： | 张咸臣,张海进,尹微琴,王小治,董兵,盛海君,封克,朱建国.大气O_3浓度升高对麦季土壤和植株氮磷钾的影响[J].生态学杂志,2011,30(8). |
| 作者姓名： | 张咸臣 张海进 尹微琴 王小治 董兵 盛海君 封克 朱建国 |
| 作者单位： | 1. 江苏省扬州农业环境安全技术服务中心/扬州大学环境科学与工程学院,扬州,225127 2. 江苏省扬州农业环境安全技术服务中心/扬州大学环境科学与工程学院,扬州,225127;土壤与农业可持续发展国家重点实验室,南京,210008 3. 土壤与农业可持续发展国家重点实验室,南京,210008 |
| 基金项目： | 扬州大学科技基金项目(2008CXJ015,2009CXJ016); 江苏省“青蓝工程”; 国家自然科学基金重大国际合作项目(40120140817)资助 |
| 摘 要： | 以江都稻/麦轮作系统O3-FACE(ozone-free air concentration enrichment)为试验平台,研究了高浓度O3(比周围大气高50%)对麦季土壤和植株N、P、K含量的影响。结果表明:在小麦整个生长期,高浓度O3处理下,土壤NH4+-N、NO3--N和速效K含量分别降低了5.7%、3.6%和3.0%,土壤速效P含量提高了26.3%(P<0.05)。经高浓度O3处理后,小麦植株在拔节期体内K含量增加了28.4%(P<0.01);成熟期小麦植株各器官内N含量均降低,麦粒中P和K含量分别增加了6.5%和4.2%;指出大气O3浓度升高在整个小麦生长期内会促进小麦植株对N、K的吸收,同时提高小麦籽粒中K、P的含量,但降低了成熟期小麦植株N含量。 |
| 关 键 词： | O3浓度升高 有效态N、P、K 土壤 小麦植株 |
Effects of elevated atmospheric O_3 on N,P,and K concentrations in soil and wheat plant during wheat growth season |
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| ZHANG Xian-chen,ZHANG Hai-jin,YIN Wei-qin,WANG Xiao-zhi,DONG Bing,SHENG Hai-jun,FENG Ke,ZHU Jian-guo.Effects of elevated atmospheric O_3 on N,P,and K concentrations in soil and wheat plant during wheat growth season[J].Chinese Journal of Ecology,2011,30(8). | |
| Authors: | ZHANG Xian-chen ZHANG Hai-jin YIN Wei-qin WANG Xiao-zhi DONG Bing SHENG Hai-jun FENG Ke ZHU Jian-guo |
| Institution: | ZHANG Xian-chen1,ZHANG Hai-jin1,YIN Wei-qin1,WANG Xiao-zhi1,2**,DONG Bing1,SHENG Hai-jun1,FENG Ke1,ZHU Jian-guo2(1Yangzhou Technical Service Center for Agro-Environment Safety of Jiangsu Province/College of Environmental Science and Engineering,Yangzhou University,Yangzhou 225127,China,2State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China) |
| Abstract: | Taking the rice/wheat ozone free-air concentration enrichment(O3-FACE) system in Jiangdu County of Jiangsu Province as a platform,this paper studied the effects of elevated atmospheric O3(target at 50% above ambient) on the N,P,and K concentrations in soil and wheat plant during wheat growth season.In the whole growth season of wheat,the concentrations of soil NH4+-N,NO3--N,and available K under elevated O3 decreased by 5.7%,3.6% and 3.0%,respectively,while the soil available P concentration increased by 26... |
| Keywords: | elevated O3 available N P and K soil wheat plant |
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