[1]蔡乾坤,段洪浪,刘文飞,等.氮沉降对杉木林土壤有效氮和磷含量的影响[J].森林与环境学报,2016,36(03):342-348.[doi:10.13324/j.cnki.jfcf.2016.03.015]
 CAI Qiankun,DUAN Honglang,LIU Wenfei,et al.Impacts of nitrogen deposition on soil available N and P contents in the Chinese fir plantation[J].,2016,36(03):342-348.[doi:10.13324/j.cnki.jfcf.2016.03.015]
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氮沉降对杉木林土壤有效氮和磷含量的影响()
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《森林与环境学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
36
期数:
2016年03期
页码:
342-348
栏目:
出版日期:
2016-07-15

文章信息/Info

Title:
Impacts of nitrogen deposition on soil available N and P contents in the Chinese fir plantation
作者:
蔡乾坤 段洪浪 刘文飞 吴建平 袁颖红 樊后保
南昌工程学院生态与环境科学研究所, 江西 南昌 330099
Author(s):
CAI Qiankun DUAN Honglang LIU Wenfei WU Jianping YUAN Yinghong FAN Houbao
Institute of Ecology & Environmental Science, Nanchang Institute of Technology, Nanchang, Jiangxi 330099, China
关键词:
氮沉降有效氮有效磷杉木
Keywords:
nitrogen depositionavailable nitrogenavailable phosphorusCunninghamia lanceolata (Lamb.) Hook.
分类号:
S714.5
DOI:
10.13324/j.cnki.jfcf.2016.03.015
摘要:
为探究长期氮沉降对土壤有效氮和磷含量的影响,以亚热带杉木人工林为研究对象,研究10 a 氮沉降对杉木人工林土壤有效氮、磷含量的影响,并探讨干、湿季土壤有效氮、磷含量对氮沉降的响应动态。试验分为对照(0 kg·hm-2·a-1)、低氮(60 kg·hm-2·a-1)、中氮(120 kg·hm-2·a-1)、高氮(240 kg·hm-2·a-1)4种处理模拟氮沉降试验,结果表明,随着施氮量的增加,土壤铵态氮、硝态氮和有效氮含量呈上升趋势,并且铵态氮和硝态氮表现出明显的季节动态。土壤pH值和NH4+-N/NO3--N值随着施氮量增加而降低,有效磷的含量在中氮处理中最高,N/P值均在一个较高的水平范围。
Abstract:
In order to examine the effects of long-termed nitrogen deposition on soil available N and P content, the subtropical Chinese fir plantation was taken as a research object, the experiment included four treatments, N0(0 kg·hm-2·a-1), N1(60 kg·hm-2·a-1), N2(120 kg·hm-2·a-1), N3(240 kg·hm-2·a-1) to investigate the responses of soil available N and P contents to the N deposition in the dry and wet seasons. The results indicated that the contents of soil ammonium nitrogen, nitrate nitrogen and available nitrogen showed obvious seasonal dynamics and were enhanced along with the nitrogen level, while soil pH and NH4+-N/NO3--N had a decreasing tendency. The content of available P was the highest in the middle nitrogen treatment N2(120 kg·hm-2·a-1). In this experiment, the ratio of N and P was at a high level.

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备注/Memo

备注/Memo:
收稿日期:2015-09-172016-03-11。
基金项目:国家自然科学基金项目(31570444,31360175);江西省教育厅科技项目(KJLD12097;GJJ14744)。
作者简介:蔡乾坤(1989-),男,硕士研究生,从事生态环境、水土保持研究。E-mail:cai_1989@163.com。
通讯作者:樊后保(1965-),男,教授,博士,从事森林生态与生物地球化学循环研究。E-mail:hbfan@nit.edu.cn。
更新日期/Last Update: 1900-01-01