庐山6种树木立地土壤溶液铝形态与溶解有机碳变化

摘要/Abstract

摘要： 于1999年夏季,采集了庐山植物园6种树木立地的不同层次土壤样品,提取土壤溶液,分析其溶液中的溶解铝和溶解有机碳.结果表明,尽管发育于同一发生性土类,不同立地下土壤溶液溶解铝含量有明显差异,而溶解性有机碳的差异相对较小.在6种树木立地中,香柏立地表层土壤溶解铝含量达4.95mg·kg^-1,为其它针叶林立地的2倍,是阔叶林立地的3倍.溶解铝积累与土壤酸化强度有密切关系。但溶解有机碳趋向于形成抑制毒性的单核铝.供试的不同立地土壤可以按溶液铝化学特点分为不同的生态化学类型.

关键词: 土壤溶液化学, 溶解铝, 溶解有机碳, 森林立地, 生态化学

Abstract: Different depths of soils under 6 tree stands in Lushan Botany Garden were sampled and water-digested at room temperature.The dissolved aluminum and organic carbon were then determined by colorimetry, using 8-hydrox-ylquilin and TOC Analyzer, respectively.The results indicated that even derived from a naturally identical soil type, the test soils exhibited a diverse solution chemistry, regarding with the A1 speciation.The soil solutions under Japanese cedar, giant arborvitae and tea had lower pH values and higher contents of soluble aluminum than those under Giant dogwood, azalea and bamboo.Under giant arborvitae, the lowest pH and the highest content of total soluble aluminum and monomeric aluminum were found in soil solution.There was a significant correlation between soluble aluminum and DOC, which tended to depress the accumulation of toxic monomeric aluminum.The 6 tree stands could be grouped into 2 categories of solution chemistry, according to aluminum mobilization.

Key words: Soil solution chemistry, Dissolved aluminum, Dissolved organic carbon Forest stand, Eco-chem-istry

中图分类号:

X517

王连峰, 潘根兴, 石盛莉, 张乐华, 黄明星. 庐山6种树木立地土壤溶液铝形态与溶解有机碳变化[J]. 应用生态学报, 2003, (10): 1602-1606.

WANG Lianfeng, PAN Genxing, SHI Shengli, ZHANG Lehua, HUANG Mingxing . Dissolved aluminum and organic carbon in soil solution under six tree stands in Lushan forest ecosystems[J]. Chinese Journal of Applied Ecology, 2003, (10): 1602-1606.

参考文献

[1] Christ MJ, David MB. 1996. Dynamics of extractable organic carbon in spodosol forest floor.Soil Biol Biochem,28(9):1171～1179
[2] Dahlgren RA, Ugolini FC. 1989. Aluminum fractionation of soil solutions from unperturbed and tephra-treated spodosols, cascade range, Washington,USA.Soil Sci Soc Am J,53:559～566
[3] Dalva M, Moor TR. 1991. Source and sinks of dissolved organic carbon in a forest swamp catchments.Biogeochemistry,15:1～19
[4] David MB, Driscoll CT. 1984.Aluminum speciation and equilibriums in soil solutions of a haplorthod in the Adirondack Mountains (NewYork,USA).Geoderma,33:297～318
[5] Driscoll CT.1984. A procedure for the fractionation of aqueous aluminum in dilute acidic waters.Int J Anal Chem,16:267～283
[6] Driscoll CT, van Breemen N, Mulder J. 1985. Aluminum chemistry in a forested spodosol.Soil Sci Soc Am J,49:437～444
[7] Dosskey MG, Pertsch PM. 1997.Transport of dissolved organic matter through a sandy forest soil.Soil Sci Soc Am J,61:64～69
[8] Fernandez-sanjurjo MJ, Alvarez E, Garcia-rodeja E. 1998. Speciation and solubility control of aluminum of the River Sor Watershed (Galicia,NW Spain).Water Air Soil Poll,103:35～53
[9] Funakawa S, Hirai H, Kyuma K. 1993. Speciation of Al in soil solution from forest soils in northern Kyoto with special reference to their pedogenetic process.Soil Sci Plant Nutr, 39(2):281～290
[10] Gong Z-T(龚子同). 1999.Chinese Soil Taxonomic Classification. Beijing:Science Press.114～194(in Chinese)
[11] Jallah JKT, Smith J.1998. Assessment of rhizotoxic aluminum in soil solution by computer and chromogenic speciation.Com Soil Sci Plant Anal,29(1-2):37～50
[12] Kalbitz K, Solinger JL, Park JB.2000. Controls on the dynamics of dissolved organic matter in soils: A review. Soil Sci, 165(4): 277～304
[13] Lawrence GB, David MB. 1997. Response of aluminum solubility to elevated nitrification in soil of a red spruce stand in eastern Maine.Environ Sci Technol, 31:825～830
[14] Likens GE, Lovett GM, Richter DD. 1996. Long-term effects of acid rain: Response and recovery of a forest ecosystem.Science, 272:244～246
[15] Luo C-D(罗承德),Zhang J(张健),Liu J-L(刘建龙).2000. Research on the threshold of aluminum toxicity and the decline of Chinese fir plantation in hilly area around the Sichuan basin.Sci Silvae Sin(林业科学),36(1):9～14(in Chinese)
[16] Michalzik B, Matzner E.1999. Fluxes and dynamics of dissolved organic nitrogen and carbon in a spruce(Picea abies Karst) forest ecosystem.Eur J Soil Sci,50:579～590
[17] Miller EK,Huntington TG,Johnson AH,et al.1992. Aluminum in soil solutions from a subalpine spruce-fir forest at Whiteface Mountain, New York.J Environ Qual,21:345～352
[18] Mulder J, van Breemen N, Eijck HC. 1989. Depletion of soil aluminum by acid deposition and implication for acid neutralization.Nature, 337:247～249
[19] Nanbu K, Yonebayashi K. 1999.Acidic properties of dissolved organic matter leached from organic layers in temperate forest.Soil Sci Plant Nutr,45(1):65～77
[20] Pan G-X(潘根兴), Fallavier P, Lu Y-W(卢玉文),et al. 1993. Soil acidification in Mt. Lushan and changes in its physico-chemical properties in the past 35 years.Chin J Soil Sci(土壤通报), 24(4):145～147 (in Chinese)
[21] Pan GX. 1992.Acidification of soils in Mt. Lushan over the last 35 years. Pedosphere,2(2):179～182
[22] Ulrich B.1990.Waldsterben:Forest decline in West Germany.Environ Sci Technol,24(4):436～441
[23] Wang B-A(王保安),Zhang Y-H(张远航). Zhang Z (张铮),et al. 1996. Study on the Spring Rain Chemistry of Mt. Lushan.J Environ Sci,16(3):218～222(in Chinese)
[24] Wang L-F(王连峰), Pan G-X(潘根兴), Zhang L-H(张乐华),et al. 2000. Dissolved aluminum forms in typical Udalfs in Mt. Lushan under acid deposition.J Nanjing Agric Univ(南京农业大学学报),23(1):45～48(in Chinese)
[25] Wang L-F(王连峰), Pan G-X(潘根兴), Shi S-L(石盛莉),et al. 2002. Dissolved organic carbon in soil solution of Paludalfs I.Mt. Lushan forest under impact of acid deposition.Plant Nutr Fert Sci(植物营养与肥料学报), 8(1): 29～34(in Chinese)
[26] Xu RK,Ji GL.1998.Chemical species of aluminum ions in acid soils.Pedosphere,8(2):127～133
[27] Xu R-K(徐仁扣). 1998. Effects of organic acids on the dissolution of aluminum and the distribution of aluminum ion species in acid soils.Soils(土壤),30(4):214～217(in Chinese)