[1]何瑞清,王百群,张燕.耕作与施肥对甘蔗地土壤微生物量碳、氮的影响[J].水土保持研究,2015,22(05):118-121.
　HE Ruiqing,WANG Baiqun,ZHANG Yan.Effects of Tillage and Fertilization on Soil Microbial Biomass Carbon and Nitrogen in Sugarcane Field[J].Research of Soil and Water Conservation,2015,22(05):118-121.
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耕作与施肥对甘蔗地土壤微生物量碳、氮的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年05期 页码: 118-121 栏目: 出版日期: 2015-10-28
Title:
Effects of Tillage and Fertilization on Soil Microbial Biomass Carbon and Nitrogen in Sugarcane Field
作者:
何瑞清1, 王百群1,2, 张燕1
1. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100;
2. 中国科学院 水利部水土保持研究所 土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100
Author(s):
HE Ruiqing1, WANG Baiqun1,2, ZHANG Yan1
1. College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China
关键词:
耕作; 施肥; 土壤微生物碳; 土壤微生物氮
Keywords:
tillage; fertilization; soil microbial biomass carbon; soil microbial biomass nitrogen
分类号:
S154.3;S158.3
摘要:
通过野外调查与室内分析，研究了云南蒲缥甘蔗地赤红壤不同耕作与施肥土壤剖面微生物量碳、氮特征。结果表明：不同耕作与施肥对土壤微生物量碳、氮均有一定影响，其中耕作对土壤微生物量碳、氮的影响较为一致，表现为免耕 > 翻耕。施肥对0—20 cm土层中微生物量碳的影响表现为翻耕施肥 > 翻耕，对20—40 cm，40—60 cm土层中微生物量碳的效应呈现为翻耕 > 翻耕施肥，而施肥对土壤微生物量氮影响则与其对微生物量碳的效应相反。耕作和施肥对各个土层土壤微生物商具有显著的影响（p<0.05），表现为免耕 > 翻耕，翻耕施肥条件下0—20 cm土层的微生物商稍高于翻耕，而其他土层均为翻耕 > 翻耕施肥；土壤微生物量氮与全氮的比值与微生物量氮的变化趋势相近。在不同的耕作和施肥条件下，免耕有利于提高土壤微生物量，施肥在一定程度上也利于提高土壤微生物量。
Abstract:
The soil microbial biomass carbon (SMBC) and soil microbial biomass nitrogen (SMBN) in latosolic red soil at Yunnan Pupiao were investigated to determine how they were affected by tillage and fertilization. The results showed that different tillage and fertilization on soil microbial biomass carbon and nitrogen were affected. The effects of tillage on soil microbial biomass carbon and nitrogen were consistent, and showed no tillage > tillage. The influence of fertilization on soil microbial biomass carbon in 0—20 cm was tillage fertilization > tillage, 20—40 cm and 40—60 cm were tillage > tillage fertilization, while effect of fertilization on soil microbial biomass nitrogen contrasted with the effect of microbial biomass carbon. The quotients of soil microorganism were significantly different (p<0.05) in different tillage and fertilization and soil depth, and showed no tillage > tillage. Effect of tillage fertilization on soil microbial quotient of the 0—20 cm was slightly higher than tillage, and the other soil layers were tillage > tillage fertilization. The ratio of soil microbial biomass nitrogen to total nitrogen was similar to the trend of soil microbial biomass nitrogen. In different tillage and fertilization, no tillage would improve the soil microbial biomass helpfully, also fertilization could improve the soil microbial biomass in a certain extent.

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备注/Memo

收稿日期:2015-06-08;改回日期:2015-07-16。
基金项目:国家自然科学基金重点项目（41330852）；中国科学院战略性先导科技专项“应对气候变化的碳收支认证及相关问题”（XDA05050504）；国家自然科学资助项目（40301024）
作者简介:何瑞清(1990-),女,云南保山人,硕士研究生,主要从事土壤有机碳氮循环研究。E-mail:hrqing8990@163.com
通讯作者:王百群(1968-),男,陕西渭南人,博士,副研究员,从事土壤有机碳氮循环研究。E-mail:bqwang@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01