短期氮添加对杨树人工林表层土壤
可溶性有机碳的影响

doi:10.3969/j.issn.1000-2006.2014.06.005

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南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (06): 23-27.doi: 10.3969/j.issn.1000-2006.2014.06.005

短期氮添加对杨树人工林表层土壤可溶性有机碳的影响

葛之葳¹,彭塞¹,许凯¹,徐钰¹,于水强¹,阮宏华^1*,徐长柏²,曹国华²

1.南京林业大学生物与环境学院,江苏省林业生态工程重点实验室,江苏南京 210037;
2.江苏省东台市国营林场,江苏东台 224200

出版日期:2014-12-31 发布日期:2014-12-31
基金资助:
收稿日期:2014-06-29 修回日期:2014-09-30
基金项目:国家重点基础研究发展计划(2012CB416904); 江苏省自然科学基金青年基金项目(BK20130973); 江苏高校优势学科建设工程资助项目(PAPD)
第一作者:葛之葳,讲师,博士。*通信作者:阮宏华,教授。E-mail: hhruan@njfu.edu.cn。
引文格式:葛之葳,彭塞,许凯,等. 短期氮添加对杨树人工林表层土壤可溶性有机碳的影响[J]. 南京林业大学学报:自然科学版,2014,38(6):23-27.

Effects of short term nitrogen addition on dissolved organic carbon in topsoil of poplar plantation

GE Zhiwei¹, PENG Sai¹, XU Kai¹, XU Yu¹, YU Shuiqiang¹, RUAN Honghua^1*, XU Changbai², CAO Guohua²

1. Jiangsu Key Laboratory of Forestry Ecological Engineering, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037,China;
2. Dongtai City National Forest Farm of Jiangsu Province, Dongtai 224200, China

Online:2014-12-31 Published:2014-12-31

摘要/Abstract

摘要： 在江苏省北部杨树人工林集中分布区开展短期氮添加实验,以研究表层土壤(0～10 cm)可溶性有机碳的响应规律。结果显示:杨树人工林表层土壤可溶性有机碳随着氮添加浓度上升呈现增加趋势,林龄间差异逐渐减小; 对表层土壤可溶性有机碳影响因子分析发现,短期氮添加过程中土壤微生物生物量碳与土壤可溶性有机碳动态的相关性最大,与相对于凋落物量和细根生物量没有明显相关关系,说明短期外源氮素输入会导致土壤微生物生物量的增加,从而引起作为微生物代谢产物的土壤可溶性有机碳浓度的上升。

Abstract: Short-term nitrogen addition experiment was conducted to examine the response of topsoil(0-10 cm)dissolved organic carbon(DOC)in northern Jiangsu province, the concentrated distribution area of poplar plantation. The results showed DOC increasing was observed in topsoil of poplar plantation along with the increasing of nitrogen addition concentration and the variation caused by ages was reduced; significant positive linear regression correlation was found between soil microbial biomass carbon(SMBC)and DOC during the analysis of impact factors in topsoil of nitrogen addition experiment, but did not exist with the amount of litter or fine root biomass.

中图分类号:

S714.2

葛之葳,彭塞,许凯,等. 短期氮添加对杨树人工林表层土壤可溶性有机碳的影响[J]. 南京林业大学学报（自然科学版）, 2014, 38(06): 23-27.

GE Zhiwei, PENG Sai, XU Kai, XU Yu, YU Shuiqiang, RUAN Honghua, XU Changbai, CAO Guohua. Effects of short term nitrogen addition on dissolved organic carbon in topsoil of poplar plantation[J].Journal of Nanjing Forestry University (Natural Science Edition), 2014, 38(06): 23-27.DOI: 10.3969/j.issn.1000-2006.2014.06.005.

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短期氮添加对杨树人工林表层土壤可溶性有机碳的影响

Effects of short term nitrogen addition on dissolved organic carbon in topsoil of poplar plantation

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短期氮添加对杨树人工林表层土壤 可溶性有机碳的影响

Effects of short term nitrogen addition on dissolved organic carbon in topsoil of poplar plantation

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短期氮添加对杨树人工林表层土壤可溶性有机碳的影响