植物营养与肥料学报2015,21（6）：1447-1454 Journal of Plant Nutrition and Fertilizer
doi 118. 11674/zwyf. 2015. 0609 http: //www. plantnutrifert. org
不同施肥模式对南方黄泥田耕层有机碳固存
及生产力的影响
王飞，李清华，林诚，钟少杰，何春梅，刘玉洁
（福建省农业科学院土壤肥料研究所，福建福州350013）
摘要：【目的】探讨南方丘陵黄泥田不同施肥对耕层土壤有机碳固存及生产力的影响，促进区域农田固碳减排和作物高产。【方法】基于32年的长期定位试验，研究不施肥（CK）、单施化肥（NPK）、化肥+牛粪（NPKM）、化肥+全部稽草还田(NPKS)处理下，历年水稽产量、代表性年份耕层土壤有机碳含量及固碳速率的变化。【结果】NPK、 NPKM、NPKS处理下水稽历年平均产量分别较CK高67.1%、88.1%和84.2%，差异显著.且NPKM、NPKS处理与NPK处理间亦具有显著差异。NPK、NPKM与NPKS处理耕层土壤有机碳历年平均含量比CK高8.9%一 36.8%，其中NPKM最高且亦显著高于NPKS与NPK处理。与初始土壤相比，各处理有机碳含量增加1.84～5.26/kg。以每10年为评价周期，NPKM、NPKS处理的固碳速率与CK及NPK差异均显著，其中双季稽年份NPKM与
不显著。稽田系统年均有机碳输入与有机碳固存间存在极显著幂函数关系，施肥土壤有机碳含量变化与籽粒产量变化间亦呈极显著正相关。【结论]南方黄泥田化肥配施有机肥或配合秸秆还田较单施化肥稳步提升水稽产量。长期不施肥土壤有机碳仍可维持低幅度增长，随着土壤有机碳含量升高，固碳效率逐步降低。化肥配施有机肥或
配合秸秆还田较单施化肥明显提高了土壤的固碳速率，二者均是提高黄泥田生产力与固碳能力的双赢措施。关键词：黄泥田；土壤有机碳；固碳速率；施肥；产量
中图分类号：S158.3；S156.6
文献标识码：A
文章编号：1008505X(2015)061447-08
Effect of differentfertilizationmodes on topsoil organic carbon
sequestration and productivity in yellow paddy field of southern China
WANG Fei, LI Qing-hua, LIN Cheng, ZHONG Shao-jie, HE Chun-mei, LIU Yu-jie
( Institute of Soil and Fertilizer, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China)
Abstract : [Objectives] The objective of this study was to explore effects of different fertilization on topsoil organic carbon sequestration and productivity in a yellow paddy field of southern China , fix carbon and reduce carbon emission , and improve the rice yield as well . [Methods] Data were collected from the thirty second year of a long -term experiment in the yellow paddy field in Fujian Province .There were four fertilization treatments in the long term field experiment: no fertilizer (CK), chemical fertilizer （NPK), chemical fertilizer plus cattle manure(NPKM) and chemical fertilizer plus straw (NPKS). We investigated influences of different fertilization regimes on topsoil organic carbon sequestration and productivity . [Results] Compared with the CK, the average yields of rice grain in the treatments of NPK, NPKM and NPKS were significantly increased by 67.1% , 88.1% and 84.2%, respectively, and the average yields in NPKM and NPKS were significantly higher than that in NPK. Among the fertilization treatments, the contents of top soil organic carbon were improved by 8. 9%36.8% and the content of the NPKM treatment was significantly higher than those of the NPKS and NPK treatments . Compared to the initial soil condition, the organic carbon contents in all treatments were improved by 1. 84 5. 26 g/kg. Taking every 10 years as the assessing period , there were significant differences of the carbon sequestration rates between the NPKM
交稿日期：2015-06-09
接受日期：2015-09-01
基金项目：公益性行业（农业）科研专项（201203030）；省属公益类科研院所基本科研专项（2015121022-5）资助。
作者简介：王飞（1976一），男，福建福州人，副研究员，主要从事土壤资源评价与持续利用研究。E-mail：fjwangfei@163.com