长期不同施肥下褐土有机碳储量及活性碳组分

生态学杂志

长期不同施肥下褐土有机碳储量及活性碳组分

赵玉皓¹,张艳杰¹,李贵春²,赵凯³,李忠芳⁴,唐政⁴,鲁顺保^1*

(¹江西师范大学鄱阳湖湿地与流域研究教育部重点实验室/江西省亚热带植物资源保护与利用重点实验室/生命科学学院，南昌 330022； ^2中国农业科学院农业环境与可持续发展研究所，北京 100081； ³辽宁朝阳农技推广中心，辽宁朝阳 100049； ⁴贺州学院化学与生物工程学院，广西贺州 542899)

出版日期:2016-07-10 发布日期:2016-07-10

Soil organic carbon stock and active carbon fractions under four kinds of long-term fertilization.

ZHAO Yu-hao¹, ZHANG Yan-jie¹, LI Gui-chun², ZHAO Kai³, LI Zhong-fang⁴, TANG Zheng⁴, LU Shun-bao^1#br#

(¹Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Key Laboratory of Protection and Utilization of Subtropic Plant Resources, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, Jiangxi, China; ²Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; ^3Chaoyang Center for Agricultural Technology Service, Chaoyang 100049, Liaoning, China; ⁴College of Chemistry and Bioengineering, Hezhou University, Hezhou 542899, Guangxi, China).

Online:2016-07-10 Published:2016-07-10

摘要/Abstract

摘要： 依托辽宁阜新褐土田间施肥定位试验，针对不施肥对照（CK）、单施化肥（NPK）、单施有机肥（M）和有机肥化肥配施(NPKM)4种不同施肥处理，分析0~20 cm耕层土壤总有机碳（TOC）及关键活性碳组分，旨在为区域土壤合理培肥和农业可持续管理提供科学依据。结果表明：在4种施肥处理中，NPKM处理的土壤总有机碳含量及其储量、微生物生物量碳（MBC）、可溶性有机碳（DOC）、颗粒有机碳（POC）和易氧化有机碳（LOC）含量均比其他3种处理高，较对照分别提高40.5%、38.6%、114.7%、57.5%、103.8%和97.6%，且含有机肥的处理土壤微生物生物量碳明显高于不含有机肥的处理。相关性分析表明，TOC、MBC、DOC、POC以及LOC间呈正显著相关性（P<0.05），各组分碳间关系密切。在本试验条件下，长期进行有机肥与化肥配施，对于提升土壤有机碳水平的效果最为显著，是提高土壤肥力最优施肥模式。土壤活性碳组分对施肥措施响应敏感，可以作为土壤总碳水平变化的预警指标。

关键词: 块菌, 主成分分析, 生态, 综合评价

Abstract: A long-term field experiment with four kinds of fertilization treatments was conducted in Fuxin of Liaoning Province. The fertilization treatments included: no fertilization (CK), chemical fertilizer (NPK), organic manure (M), and organic manure combined with chemical fertilizer (NPKM). Soil total organic carbon and key active carbon components were analyzed in order to offer a scientific basis for reasonable regional fertilization and sustainable agriculture management. The results showed that the total organic carbon content (TOC), organic carbon stock, microbial biomass carbon (MBC), dissolved organic carbon (DOC), particulate organic carbon (POC), labile organic carbon (LOC) contents in NPKM were higher than in the other treatments, and were 40.5%, 38.6%, 114.7%, 57.5%, 103.8%, and 97.6% higher than in the CK treatment, respectively. The MBC in organic manure treatment was obviously higher than that of without organic manure treatment. There were significant positive correlations between TOC, MBC, DOC, POC and LOC (P<0.05). Mixed application of organic and inorganic fertilizers significantly increased soil organic carbon content, indicating that it was the optimal fertilization model to improve soil fertility. The active carbon components responded sensitively to the fertilization and could be used as an index indicating the changes in soil total carbon.

Key words: truffles, principal component analysis, ecology, comprehensive evaluation.

赵玉皓1,张艳杰1,李贵春2,赵凯3,李忠芳4,唐政4,鲁顺保1*. 长期不同施肥下褐土有机碳储量及活性碳组分[J]. 生态学杂志.

ZHAO Yu-hao1, ZHANG Yan-jie1, LI Gui-chun2, ZHAO Kai3, LI Zhong-fang4, TANG Zheng4, LU Shun-bao1. Soil organic carbon stock and active carbon fractions under four kinds of long-term fertilization.[J]. cje.

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