|
|||||
|
|
| 外来入侵植物紫茎泽兰对土壤养分的影响 | |
| 引用本文： | 吴天马,丁晖,刘志磊,徐海根,卞新民.外来入侵植物紫茎泽兰对土壤养分的影响[J].生态与农村环境学报,2007,23(2):94-96. |
| 作者姓名： | 吴天马 丁晖 刘志磊 徐海根 卞新民 |
| 作者单位： | 1. 南京农业大学,农学院,江苏,南京,210095 2. 国家环境保护总局,南京环境科学研究所,江苏,南京,210042 3. 南京师范大学,生命科学学院,江苏,南京,210097 |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| 摘 要： | 选取云南、四川省3个不同生境作为样地,研究紫茎泽兰入侵对不同生态系统土壤中碱解氮、速效磷、速效钾含量的影响.结果表明,紫茎泽兰入侵造成样地a土壤碱解氮、速效磷、速效钾含量分别显著下降33.9%、44.2%和32.2%;样地b仅土壤速效磷显著下降31.0%;样地c土壤各营养元素未见显著变化.在不同时间,样地a处理组各营养元素含量基本低于对照组,以2005年7月至10月的差异最显著.这说明紫茎泽兰入侵对土壤养分的影响因生境不同而异,且与紫茎泽兰的生长节律有关. |
| 关 键 词： | 外来入侵植物 紫茎泽兰 土壤养分 昆明 西昌 外来入侵植物 紫茎泽兰 土壤养分 影响 Soil Nutrients Eupatorium adenophorum Plant Invasive 生长节律 差异 对照组 元素含量 营养元素 处理 时间 变化 土壤速效磷 土壤碱解氮 结果 速效钾含量 |
| 文章编号： | 1673-4831(2007)02-0094-03 |
| 修稿时间： | 2006-08-28 |
Effects of Alien Invasive Plant Eupatorium adenophorum on Soil Nutrients |
|
| WU Tian-ma,DING hui,LIU Zhi-lei,XU Hai-gen,BIAN Xin-min.Effects of Alien Invasive Plant Eupatorium adenophorum on Soil Nutrients[J].Journal of Ecology and Rural Environment,2007,23(2):94-96. | |
| Authors: | WU Tian-ma DING hui LIU Zhi-lei XU Hai-gen BIAN Xin-min |
| Institution: | 1. College of Agriculture,Nanjing Agricultural University,Nanjing 210095 ,China; 2. Nanjing Institute of Environmental Sciences,State Environmental Protection Administration,Nanjing 210042,China; 3. College of Life Sciences,Nanjing Normal University,Nanjing 210097, China |
| Abstract: | Three sample plots of different habitat were selected in Yunnan and Sichuan to study effects of invasion of Eupatorium adenophorum on content of available nitrogen,available phosphorus and available potassium in soil.Results show that available nitrogen,available phosphorus and available potassium decreased by 33.9%,44.2%,and 32.2%,respectively,in Plot a; only available phosphorus did by 30.1% in Plot b;and no significant change was observed in Plot c.During the experiment,Plot a was found lower than the control in soil nutrient content,regardless of time period,and especially during the period from July to October of 2005,which suggests that the effect of the invasion of Eupatorium adenophorum varied from habitat to habitat,and was related to the growth rhythm of Eupatorium adenophorum. |
| Keywords: | alien invasive plant Eupatorium adenophorum soil nutrient Kunming Xichang |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |