生物黑炭对酸化茶园土壤的改良效果

摘要/Abstract

摘要： 采用田间试验,研究施用生物黑炭0(CK)、8、16、32、64 t·hm^-2 5个水平对酸化茶园土壤的改良效果。结果表明,施用不同用量的生物黑炭处理与CK处理相比,0~20 cm土层土壤pH值提高0.19~1.72个单位,土壤交换性酸降低0.79~3.96 cmol·kg^-1,土壤盐基饱和度提高20.98%~173.67%,土壤阳离子交换量增加0.80~2.46 cmol·kg^-1;20~40 cm土层土壤pH提高0.05~0.61个单位,土壤交换性酸降低0.20~2.14 cmol·kg^-1,土壤盐基饱和度提高27.72%~56.51%,土壤阳离子交换量增加0.57~1.12 cmol·kg^-1。土壤改良效果随生物黑炭施用量的增加而增大,且对0~20 cm土层土壤的改良效果大于20~40 cm土层土壤。施用生物黑炭各处理春茶鲜叶产量分别为CK的106.61%、105.62%、99.89%和99.23%,各处理及与CK间差异均不显著(P>0.05)。

关键词: 生物黑炭, 土壤酸化, 土壤改良, 茶园

Abstract: Ameliorating effect of biochar in varying concentrations (i.e., 0, 8, 16, 32 and 64 t hm^-2) on acidity of tea garden soils were studied in field trials. The results showed that, as compared with CK (no added biochar), the soil pH increased by 0.19-1.72, the soil exchangeable acid decreased by 0.79-3.96 cmol·kg^-1, the soil base saturation increased by 20.98-173.67%, and the soil cation exchange capacity (CEC) increased by 0.80-2.46 cmol·kg^-1 on the 0-20 cm layer of the soils. On the other hand, in the 20-40 cm layer of the soils, the pH of the treatment samples increased by 0.05-0.61, the soil exchangeable acid decreased by 0.20-2.14 cmol·kg^-1,the soil base saturation increased by 27.72-56.51%, and the soil CEC increased by 0.57-1.12 cmol·kg^-1. It appeared that the soil ameliorating effect increased with increasing biochar addition. The increase was particularly significant in the 0-20 cm than the 20-40 cm layer of the soils. The yield of the fresh tea leaves was changed 6.61%, 5.62%, -0.11% and -0.77% by the addition of biochar at the rates of 8, 16, 32 and 64 t·hm^-2, respectively. However, no significant differences (P>0.05) on tea yields between the treatments and control was found.

Key words: biochar, soil acidification, soil, soil amelioration, tea garden

中图分类号:

S156

吴志丹, 尤志明, 江福英, 王峰, 王成己, 张文锦. 生物黑炭对酸化茶园土壤的改良效果[J]. 福建农业学报, 2012, (2): 167-172.

WU Zhi-dan, YOU Zhi-ming, JIANG Fu-ying, WANG Feng, WANG Cheng-ji, ZHANG Wen-jin. Ameliorating Effect of Biochar on Acidity of Tea Garden Soil[J]. Fujian Journal of Agricultural Sciences, 2012, (2): 167-172.

参考文献

[1] GUO J H, LIU X J, ZHANG Y, et al. Significant Acidification in Major Chinese Croplands[J]. Science, 2010, 327(19): 1008-1010.

[2] 丁瑞兴, 黄骁. 茶园-土壤系统铝和氟的生物地球化学循环及其对土壤酸化的影响[J]. 土壤学报, 1991, 28(3):229-237.

[3] 石锦芹, 丁瑞兴, 刘友兆, 等. 尿素和茶树落叶对土壤的酸化作用[J]. 茶叶科学, 1999, 19 (1): 7-l2.

[4] 曹丹, 张倩, 肖峻, 等. 江苏省典型茶园土壤酸化速率定位研究[J].茶叶科学, 2009, 29(6): 443-448.

[5] 马立峰, 石元值, 阮建云. 苏、浙、皖茶区茶园土壤pH状况及近十年来的变化[J]. 土壤通报, 2000, 31(5): 205-207.

[6] 张祖光, 吴云, 谢德体. 重庆茶园土壤酸化特征研究[J]. 西南农业大学学报:自然科学版, 2004, 26(1): 15-17.

[7] HAN W Y, ZHAO F J, SHI Y Z, et al. Scale and Causes of Lead Contamination in Chinese Tea [J]. Environmental Pollution,2006, 139( 1): 125-132.

[8] 章明奎, 方利平, 张履勤. 酸化和有机质积累对茶园土壤铅生物有效性的影响[J]. 茶叶科学, 2005, 25( 3) : 159- 164.

[9] 潘根兴, 张阿凤, 邹建文, 等. 农业废弃物生物黑炭转化还田作为低碳农业途径的探讨[J]. 生态与农村环境学报, 2010, 26(4): 394-400.

[10] 张阿凤, 潘根兴, 李恋卿. 生物黑炭及其增汇减排与改良土壤意义[J]. 农业环境科学学报,2009, 28(12): 2459-2463.

[11] YUAN J H, XU R K. The amelioration effects of low temperature biochar generated from nine crop residues on an acidic Ultisol[J]. Soil Use and Management, 2011, 27(1): 110-115.

[12] 鲁如坤. 土壤农业化学分析方法[M].北京: 中国农业科学技术出版社, 2000.

[13] FAW W F, SHIH S C, JUNG G A. Extractant influence on the relationship between extractable proteins and cold tolerance of alfalfa[J]. Plant Physiol, 1976, 57(5): 720-723.

[14] 刘世全, 张宗锦, 王昌全, 等. 西藏酸性土壤的酸度特征[J]. 土壤学报, 2005, 42(2): 211-218.

[15] 范庆锋, 张玉龙, 陈重, 等.保护地土壤酸度特征及酸化机制研究[J].土壤学报, 2009, 46(3): 466-471.

[16] 王辉, 徐仁扣, 黎星辉.施用碱渣对茶园土壤酸度和茶叶品质的影响[J]. 生态与农村环境学报, 2011, 27(1): 75-78.

[17] BLAKE L, GOULDING K W T, MOTT C J B, et al. Changes in soil chemistry accompanying acidification over more than 100 years under woodland and grass at Rothamsted Experimental Station, UK[J]. European Journal of Soil Science, 1999, 50: 401-412.

[18] 徐仁扣, 赵安珍, 姜军. 酸化对茶园黄棕壤CEC和粘土矿物组成的影响[J]. 生态环境学报, 2011, 20(10): 1395-1398.

[19] ULRICH B. An ecosystem approach to soil acidification. In: Ulrich B and Sumner ME. (eds.) Soil Acidity[M]. Springer-verlag, Berlin Heidelberg, 1991: 28-79.

[20] 陈红霞, 杜章留, 郭伟, 等. 施用生物炭对华北平原农田土壤容重、阳离子交换量和颗粒有机质含量的影响[J]. 应用生态学报, 2011,22(11): 2930-2934.

[21] LAIRD D A, FLEMING P, DAVIS D D, et al. Impact of biochar amendments on the quality of a typical Midwestern agriculture soil[J]. Geoderma, 2010, 158: 443-449.

[22] 陈燕霞, 唐晓东, 游媛, 等. 石灰和沸石对酸化菜园土壤改良效应研究[J]. 广西农业科学, 2009, 60(6):700-704.

[23] LEHMANN J, DA SILVA J P, STEINER C, et al. Nutrient availability and leaching in an archaeological Anthrosol and a Ferralsol of the Central Amazon basin: Fertilizer, manure and charcoal amendments[J]. Plant and Soil, 2003, 249: 343-357.

[24] TOPOLIANTZ S, PONGE J F, BALLOF S. Manioc peel and charcoal: A potential organic amendment for sustainable soil fertility in the tropics[J]. Biology and Fertility of Soils, 2005, 41: 15-21.

[25] 黄昌勇.土壤学[M].北京: 中国农业出版社, 1999: 158-169.

[26] ZHANG A F, CUI L Q, PAN G X, et al. Effect of biochar amendment on yield and methane and nitrous oxide emissions from a rice paddy from Tai Lake plain, China[J]. Agriculture,Ecosystems and Environment, 2010, 139: 469-475.

[27] CHIDUMAYO E N. Effects of wood carbonization on soil and initial development of seedlings in miombo woodland, Zambia[J]. Forest Ecological Management, 1994, 70: 353-357.

[28] KISHIMOTO S, SUGIURA G. Charcoal as a soil conditioner[J]. Int Achieve Future, 1985, 5: 12-23.

[29] 唐劲驰, 吴利荣, 吴家尧, 等. 初投产茶园氮磷钾配比施用与产量、品质的关系研究[J]. 茶叶科学, 2011, 31(1): 11-16.

[30] SOHI S,LOEZ-CAPEL E,KRULL E,et al. Biochar's roles in soil and climate change: A review to guide future research. CSIRO Land and Water Science Report 05 /09, 2009: 64.

[31] DAUM D, SCHENK M K. Influence of nutrient solution pH on N₂O and N₂ emissions from a soilless culture system[J]. Plant and Soil, 1998,203:279-287.

[32] SINGH B P, HATTON B J, SINGH B, et al. Influence of biochars on nitrous oxide emission and nitrogen leaching from two contrasting soils[J]. Journal of Environmental Quality, 2010, 39: 1224-1235.