不同施氮量对两种茶园土壤硝化作用和pH值的影响

王峰; 陈玉真; 尤志明; 吴志丹; 江福英; 张文锦; 翁伯琦

doi:10.13305/j.cnki.jts.2015.01.016

茶叶科学 >

2015 , Vol. 35 >Issue 1: 82 - 90

DOI: https://doi.org/10.13305/j.cnki.jts.2015.01.016

不同施氮量对两种茶园土壤硝化作用和pH值的影响

王峰 ,
陈玉真 ,
尤志明 ,
吴志丹 ,
江福英 ,
张文锦 ,
翁伯琦

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1. 福建省农业科学院茶叶研究所,福建福安355015;
2. 福建省农业科学院农业生态研究所,福建福州 350013

王峰,男,硕士,助理研究员,主要从事茶树栽培与环境生态研究。

收稿日期: 2013-11-04

修回日期: 2014-04-15

网络出版日期: 2019-08-23

基金资助

国家茶产业体系宁德站（CARS-23-9）、福建省公益类科研院所专项(2014R1101014-9)、福建省农业科学院青年创新基金（2013DQB-17）、国家科技支撑计划（2014BAD15B01）

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Effects of Different Nitrogen Application Rates on Nitrification and pH of Two Tea Garden Soil

WANG Feng ,
CHEN Yuzhen ,
YOU Zhiming ,
WU Zhidan ,
JIANG Fuying ,
ZHANG Wenjin ,
WENG Boqi

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1. Tea Research Institute, Fujian Academy of Agricultural Sciences, Fu’an 355015, China;
2. Agriculture Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China

Received date: 2013-11-04

Revised date: 2014-04-15

Online published: 2019-08-23

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摘要

在土壤最大持水量60%和温度25℃的实验室培养条件下,对采自福建武夷山的两种类型土壤（黄壤和红壤）进行46βd的培养实验,研究了不同施氮量对茶园土壤硝化作用和pH值的影响。结果表明,两种茶园土壤中尿素的水解过程有明显差别,黄壤茶园土壤中尿素水解率高且较快（2~6βd）,红壤茶园中水解过程达到了16βd;对照处理（N0）两种茶园硝化率分别为81.32%和73.48%,黄壤茶园土壤硝化作用显著高于红壤茶园（P<0.05）;无论施氮与否,两种茶园土壤NO₃^--N含量随时间的变化趋势呈“J”型,具有11~16βd的延滞期,符合指数方程N=N₀e^kt（P<0.01）;施氮后,两种茶园土壤的净消化量、净硝化速率和k值（P<0.05）均显著增加,且随施氮量的增加而增加,但土壤硝化率（P<0.05）显著降低;无论施氮与否,黄壤茶园土壤N₂O排放速率在培养期间总体高于红壤茶园土壤,且前者累积排放量显著高于后者（P<0.05）;氮肥施用导致两种茶园土壤pH值下降,较对照分别下降了0.16~0.52和0.11~0.25,施氮量越大,pH值下降越多。以上结果表明,研究中两种茶园土壤硝化作用较强,均存在硝化作用延滞期（11~16βd）,有利于茶树对铵态氮的吸收利用;施氮导致土壤pH值降低,加速土壤酸化。

关键词： 茶园土壤; 氮肥水平; 硝化作用; pH

本文引用格式

王峰 , 陈玉真 , 尤志明 , 吴志丹 , 江福英 , 张文锦 , 翁伯琦 . 不同施氮量对两种茶园土壤硝化作用和pH值的影响[J]. 茶叶科学, 2015 , 35(1) : 82 -90 . DOI: 10.13305/j.cnki.jts.2015.01.016

Abstract

Two tea garden soils (yellow soil and red soil) derived from Wuyishan City were incubated at 25℃with a soil moisture content of 60% water holding capacity (WHC) for 46 days. The dynamics of nitrification and pH of soil after urea application at different rates were measured. The results show that urea is hydrolyzed fast (2-6βd) with a high nitrification activity in yellow soil. However, the urea is hydrolyzed relatively slow (16βd) in red soil. The nitrification rate in two tea garden soils are 81.32% and 73.48% respectively, and the nitrification activity in yellow soil is significantly higher than that in red soil (P<0.05). With or without nitrogen application, changing tendency of the contents of NO₃^-N in two tea garden soils show as ‘J’ type with an obvious delay step for 11-16 days. The nitrification in these tea garden soils follows the exponential model N=N₀e^kt(P<0.01). Compared with the control treatment, the net amount of nitrified nitrogen, net nitrification rate and k value increase with the urea N application rates, however, the nitrification rates decreased with the urea N application rates. With or without Nitrogen Application, the N₂O fluxes from yellow tea garden soil were higher than those from red tea garden soil(P<0.05). Compared with the control treatment, soil pH decreased by 0.16-0.52 and 0.11-0.25 pH units with the urea N application rates. These results indicated that two highly acidic tea garden soils showed high nitrification activity(delay step were 11-16 days), and be conducive to absorb NH₄⁺-N. Urea application could decrease soil pH, and the nitrogen application rate is one of the main factors accelerating acidification of tea garden soil.

Key words： tea garden soil; Nitrogen fertilizer application rate; nitrification; pH

参考文献

[1] Abera G, Wolde-Meskel E, Bakken L R.Carbon and nitrogen mineralization dynamics in different soils of the tropics amended with legume residues and contrasting soil moisture contents[J]. Biology and Fertility of Soils, 2012, 48(1): 51-66.
[2] 田红灯, 田大伦, 闫文德, 等. 贵阳市4种森林类型土壤氮矿化的研究[J]. 中南林业科技大学学报, 2012, 32(11): 100-104.
[3] 朱剑兴, 王秋凤, 何念鹏, 等. 内蒙古不同类型草地土壤氮矿化及其温度敏感性[J]. 生态学报, 2013, 33(19): 6320-6327.
[4] 过燕琴, 高志亮, 张令, 等. 设施和露天栽培下有机菜地土壤氮素矿化和硝化作用的比较研究[J]. 农业环境科学学报, 2010, 29(12): 2436-2442.
[5] 兰婷, 韩勇. 两种水稻土氮初级矿化和硝化速率及其与氮肥利用率的关系[J]. 土壤学报, 2013, 50(6): 1154-1161.
[6] Dessureault-Rompré J, Zebarth B J, Georgallas A, et al. Temperature dependence of soil nitrogen mineralization rate: Comparison of mathematical models, reference temperatures and origin of the soils[J]. Geoderma, 2010, 157(3): 97-108.
[7] Ye C, Cheng X, Zhang Y, et al. Soil nitrogen dynamics following short-term revegetation in the water level fluctuation zone of the Three Gorges Reservoir, China[J]. Ecological Engineering, 2012, 38(1): 37-44.
[8] 贾俊仙, 李忠佩, 刘明, 等. 施用氮肥对不同肥力红壤性水稻土硝化作用的影响[J]. 生态与农村环境学报, 2010, 26(4): 329-333.
[9] Xiao K, Xu J, Tang C, et al. Differences in carbon and nitrogen mineralization in soils of differing initial pH induced by electrokinesis and receiving crop residue amendments[J]. Soil Biology and Biochemistry, 2013, 67: 70-84.
[10] 李铭, 朱利川, 张全发, 等. 不同土地利用类型对丹江口库区土壤氮矿化的影响[J]. 植物生态学报, 2012, 36(6): 530-538.
[11] 余泺, 高明, 慈恩, 等. 不同耕作方式下土壤氮素矿化和硝化特征研究[J]. 生态环境学报, 2010, 19(3): 733-738.
[12] 吕殿青, 张树兰, 杨学云. 外加碳、氮对土壤氮矿化、固定与激发效应的影响[J]. 植物营养与肥料学报, 2007, 13(2): 223-229.
[13] 章燕, 徐慧, 夏宗伟, 等. 硝化抑制剂 DCD, DMPP对褐土氮总矿化速率和硝化速率的影响[J]. 应用生态学报, 2012, 23(1): 167-172.
[14] Zhao W, Cai Z, Xu Z.Does ammonium-based N addition influence nitrification and acidification in humid subtropical soils of China?[J]. Plant and soil, 2007, 297(1/2): 213-221.
[15] 贾俊仙, 李忠佩, 车玉萍. 土壤肥力和尿素用量对黑土硝化作用的影响[J]. 土壤通报, 2011, 42(2): 412-416.
[16] 佟德利, 徐仁扣. 三种氮肥对红壤硝化作用及酸化过程影响的研究[J]. 植物营养与肥料学报, 2012, 18(4): 853-859.
[17] Stein L Y, Arp D J, Hyman M R.Regulation of the Synthesis and Activity of Ammonia Monooxygenase in Nitrosomonas europaea by Altering pH To Affect NH₃ Availability[J]. Applied and environmental microbiology, 1997, 63(11): 4588-4592.
[18] 蔡祖聪, 赵维. 土地利用方式对湿润亚热带土壤硝化作用的影响[J]. 土壤学报, 2009, 46(5): 795-801.
[19] 赵维, 蔡祖聪. 基于变化阶段特点的亚热带红壤硝化模式及其影响因素分析[J]. 生态环境学报, 2011, 20(10): 1387-1394.
[20] 韩文炎, 徐建明. 茶园土壤NO₃--N含量与净硝化速率的研究[J]. 茶叶科学, 2011, 31(6): 513-520.
[21] XUE D, GAO Y, YAO H, et al. Nitrification potentials of Chinese tea orchard soils and their adjacent wasteland and forest soils[J]. Journal of Environmental Sciences, 2009, 21(9): 1225-1229.
[22] Yao H, Campbell C D, Qiao X.Soil pH controls nitrification and carbon substrate utilization more than urea or charcoal in some highly acidic soils[J]. Biology and Fertility of Soils, 2011, 47(5): 515-522.
[23] De Vries W, Breeuwsma A.The relation between soil acidification and element cycling[J]. Water, Air, and Soil Pollution, 1987, 35(3): 293-310.
[24] 阮建云, 吴洵, 石元值, 等. 中国典型茶区养分投入与施肥效应[J]. 土壤肥料, 2001,5:9-13.
[25] 马立峰, 石元值, 阮建云. 苏、浙、皖茶区茶园土壤pH状况及近十年来pH的变化[J]. 土壤通报, 2000, 31(5): 205-207.
[26] 农业部种植业管理司. 2013年全国茶园面积、产量、产值统计[J]. 茶叶科学, 2014, 34(3): 296.
[27] 鲁如坤. 土壤农业化学分析方法[M]. 北京: 中国农业科技出版社, 2000: 147-161.
[28] 丁洪, 郑祥洲, 雷俊杰, 等. 除草剂对土壤温室气体排放的影响[J]. 农业环境科学学报, 2012, 31(2): 435-439.
[29] 薛冬, 姚槐应, 黄昌勇. 不同利用年限茶园土壤矿化,硝化作用特性[J]. 土壤学报, 2007, 44(2): 373-378.
[30] Xue D, Huang X, Yao H, et al. Effect of lime application on microbial community in acidic tea orchard soils in comparison with those in wasteland and forest soils[J]. Journal of Environmental Sciences, 2010, 22(8): 1253-1260.
[31] 黄耀, 焦燕, 宗良纲, 等. 土壤理化特性对麦田 N₂O 排放影响的研究[J]. 环境科学学报, 2002, 22(5): 598-602.
[32] 张倩, 宗良纲, 曹丹, 等. 江苏省典型茶园土壤酸化趋势及其制约因素研究[J]. 土壤, 2011, 43(5): 751-757.
[33] 蔡泽江, 孙楠, 王伯仁, 等. 几种施肥模式对红壤氮素形态转化和pH的影响[J]. 中国农业科学, 2012, 45(14): 2877-2885.
[34] 佟德利, 徐仁扣, 顾天夏. 施用尿素和硫酸铵对红壤硝化和酸化作用的影响[J]. 生态与农村环境学报, 2012, 28(4): 404-409.

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