文献类型：期刊文献

中文题名：加拿大一枝黄花入侵对杭州湾湿地围垦区土壤养分及活性有机碳组分的影响

英文题名：Invasion Effects of Solidago canadensis on Soil Nutrients and Active Organic Carbon Components in Reclamation District of Hangzhou Bay Wetland

作者：梁雷[1,2] 叶小齐[1] 吴明[1] 邵学新[1] 李长明[1,2]

第一作者：梁雷

机构：[1]中国林业科学研究院亚热带林业研究所,国家林业局杭州湾湿地生态系统定位观测研究站,浙江富阳311400;[2]杭州师范大学生命与环境科学学院,杭州310036

年份：2016

卷号：48

期号：4

起止页码：680-685

中文期刊名：土壤

外文期刊名：Soils

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金项目(31400378);中国林业科学研究院中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2014QB034)资助

语种：中文

中文关键词：外来植物入侵;加拿大一枝黄花;土壤养分;活性有机碳组分

外文关键词：Exotic plant invasion; Solidago canadenis; Soil nutrients; Active organic carbon components

分类号：Q948.1

摘要：加拿大一枝黄花（Solidago canadenis）是我国危害最严重的外来入侵植物之一,为了阐明其对入侵地生态系统的影响,以浙江省慈溪市杭州湾湿地围垦区内自然分布的加拿大一枝黄花群落和3种土著植物群落：束尾草（Phacelurus Griseb）群落、白茅（Imperata cylindrica）群落和芦苇（Phragmites australis）群落为研究对象,采用野外样地实验的方法,研究了加拿大一枝黄花入侵对土壤氮、磷和钾含量以及有效性和活性有机碳组分含量的影响。结果表明加拿大一枝黄花的入侵显著降低了土壤的p H（P〈0.05）,对土壤全氮、全磷、全钾、有效磷、速效钾和钾含量没有显著影响（P〉0.01）,但显著提高了碱解氮、铵态氮和硝态氮的含量（P〈0.01）,其中加拿大一枝黄花0~10 cm土层碱解氮含量分别是束尾草、白茅和芦苇的1.72倍、2.35倍和2.00倍。加拿大一枝黄花入侵对土壤总有机质含量无显著影响（P〉0.01）,但是却改变了活性有机碳组分,与束尾草、白茅和芦苇相比,加拿大一枝黄花群落0~10 cm表层土壤中微生物生物量碳的含量分别提高了196.72%、180.21%和41.47%;可溶性碳0~10 cm土层分别降低了27.27%、40.78%和4.00%,10~20 cm土层分别降低了41.36%、39.49%和29.63%;易氧化碳含量在两个土层中均显著降低（P〈0.01）。上述结果表明加拿大一枝黄花的入侵降低了土壤p H,提高了土壤氮素的有效性,改变了活性有机碳组分。
Solidago canadenis is one of the worst hazardous invasive plants in China, in order to clarify its influence on the ecological system of invaded land, this experiment took Solidago canadenis communities and three kinds of native plant communities： Phacelurus Griseb communities, Imperata cylindricall communities and Phragmites australis communities naturally distributed in the reclamation district of Cixi city of Hangzhou Bay wetland as the research object, studied the invasion effects of Solidago canadensis on soil nitrogen, phosphorus and potassium contents and their available component contents as well as active organic carbon components on wild sample plots. The results showed that the invasion ofSolidago canadenis significantly reduced soil pH value （P〈0.05）, had no significant influence on contents of soil total nitrogen, total phosphorus, total potassium, available phosphorus and available potassium （P〉0.01）, but significantly increased the contents of available nitrogen, ammonium nitrogen and nitrate nitrogen （P〈0.01）, soil available nitrogen content in Solidago canadenis in 0-10 cm soil layer were 1.7 times, 2.4 times and 2.0 times of Phacelurus Griseb, Imperata cylindrical and Phragmites australis, respectively. The invasion of Solidago canadensis had no significant influence on soil total organic matter content （P〉0.01）, but changed soil active organic carbon components. Compared with the Phacelurus Griseb, Imperata cylindrical and Phragmites australis, soil microbial carbon content in 0-10 cm soil layer in Solidago canadenis increased by 196.72%, 180.21% and 41.47%, respectively; soil soluble carbon reduced by 27.27%, 40.78% and 27.27%, respectively, and reduced by 41.36%, 39.49% and 29.63% in 10-20 cm layer, respectively; soil readily oxidized carbon reduced significantly in the two layers （P〈0.01）. The above results showed that the invasion of Solidago canadenis could reduce soil pH value, increase the effectiveness of soil nitrogen and change soil active organic carbon components.