亚热带米老排和杉木细根分解过程中养分与微生物群落组成的变化

doi:10.13287/j.1001-9332.201805.033

应用生态学报 ›› 2018, Vol. 29 ›› Issue (5): 1635-1644.doi: 10.13287/j.1001-9332.201805.033

亚热带米老排和杉木细根分解过程中养分与微生物群落组成的变化

陈雅敏^1,2, 余再鹏^1,2, 王民煌^1,2, 万晓华^1,2*, 刘瑞强³, 桑昌鹏^1,2, 宋蒙亚^1,2, 熊佳^1,2

¹湿润亚热带山地生态国家重点实验室培育基地, 福州 350007;
²福建师范大学地理科学学院, 福州 350007;
³华东师范大学生态与环境科学学院, 上海 200241

收稿日期:2017-08-11 出版日期:2018-05-18 发布日期:2018-05-18
通讯作者: *E-mail: xiaohuawan2012@foxmail.com
作者简介:陈雅敏,女,1991年生,硕士研究生. 主要从事森林碳氮循环研究. E-mail: yaminchen.fj@qq.com
基金资助:
本文由国家自然科学基金项目(31600495,41371269,31570604)和国家重大科学研究计划项目(2014CB954003)资助

Dynamics of nutrient concentration and microbial community composition during fine root decomposition in subtropical Mytilaria laosensis and Cunninghamia lanceolata plantations.

CHEN Ya-min^1,2, YU Zai-peng^1,2, WANG Min-huang^1,2, WAN Xiao-hua^1,2*, LIU Rui-qiang³, SANG Chang-peng^1,2, SONG Meng-ya^1,2, XIONG Jia^1,2

¹Cultivation Base of State Key Laboratory of Humid Subtropical Mountain Ecology, Fuzhou 350007, China;
²School of Geographical Science, Fujian Normal University, Fuzhou 350007, China;
³School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China

Received:2017-08-11 Online:2018-05-18 Published:2018-05-18
Contact: *E-mail: xiaohuawan2012@foxmail.com
Supported by:
This work was supported by the National Natural Science Foundation of China (31600495, 41371269, 31570604) and the National Key Basic Research and Development Plan (2014CB954003)

摘要/Abstract

摘要： 对福建南平峡阳林场19年生米老排和杉木人工林的细根进行为期12个月的分解试验,研究不同树种分解过程中养分和微生物群落组成的动态变化,为理解亚热带不同人工林树种地下养分循环过程提供科学依据.结果表明: 米老排细根养分磷(P)、钾(K)初始含量显著高于杉木.分解过程中,两个树种细根P、K含量均显著降低,而细根氮(N)含量显著增加,且杉木细根N含量变化滞后于米老排.在分解过程中,杉木细根镁(Mg)含量无显著变化;米老排细根Mg含量变化显著,且在分解8个月时显著小于杉木.在分解过程中,真菌与细菌比值均显著表现为先升高后降低,且分解12个月时米老排细根真菌/细菌显著高于杉木.冗余分析表明,N(解释37.2%)、K(解释14.5%)含量和C/N(解释14.8%)是影响杉木细根分解过程中微生物群落组成变化的主要养分因子,而Mg(解释35.9%)和K(解释17.6%)含量则是米老排细根分解时影响微生物群落组成的主要养分因子.研究表明,在不同树种中,除了N之外,Mg等其他养分元素也可能是影响根系分解的重要因子.

关键词: 镁含量, 微生物群落组成, 细根分解, 氮含量

Abstract: We conducted a 12-month fine root decomposition experiment under 19-year-old Mytilaria laosensis and Cunninghamia lanceolate plantations to explore the dynamics of nutrient concentration and microbial community composition. The aim of this study was to provide insights into nutrient cycling under plantations with different tree species. Our results showed that the initial concentrations of phosphorus (P) and potassium (K) were significantly higher in the fine root of M. laosensis than those in C. lanceolata, which significantly decreased with decomposition. Nitrogen (N) concentration in fine roots of both species increased with decay time. The variation of N concentration in fine root of C. lanceolata lagged behind that in M. laosensis. During the decomposition, magnesium (Mg) concentration in fine root of C. lanceolata showed no significant changes, but that of M. laosensis decreased at the initial decay stage and increased thereafter and was significantly lower than that of C. lanceolata at the 8th month. The ratio of fungi to bacteria (F/B) of both species decreased at the initial stage and then increased, with significantly higher F/B in fine root of M. laosensis than that of C. lanceolate after one-year decay. Redundancy analysis (RDA) showed that changes in N and K concentrations and C/N ratio explained 37.2%, 14.5% and 14.8% of the variations in microbial community composition of C. lanceolata fine root respectively. However, during the decay of M. laosensis fine root, concentrations of Mg and K were key factors, accounting for 35.9% and 17.6% of the variations in microbial community composition, respectively. We concluded that other nutrients beyond N, such as Mg, might also be an important factor affecting root decomposition in different tree species.

Key words: nitrogen concentration, fine root decomposition, microbial community composition, magnesium concentration

陈雅敏, 余再鹏, 王民煌, 万晓华, 刘瑞强, 桑昌鹏, 宋蒙亚, 熊佳. 亚热带米老排和杉木细根分解过程中养分与微生物群落组成的变化[J]. 应用生态学报, 2018, 29(5): 1635-1644.

CHEN Ya-min, YU Zai-peng, WANG Min-huang, WAN Xiao-hua, LIU Rui-qiang, SANG Chang-peng, SONG Meng-ya, XIONG Jia. Dynamics of nutrient concentration and microbial community composition during fine root decomposition in subtropical Mytilaria laosensis and Cunninghamia lanceolata plantations.[J]. Chinese Journal of Applied Ecology, 2018, 29(5): 1635-1644.

参考文献

[1] Lin C, Yang Y, Guo J, et al. Fine root decomposition of evergreen broadleaved and coniferous tree species in mid-subtropical China: Dynamics of dry mass, nutrient and organic fractions. Plant and Soil, 2011, 338: 311-327
[2] Silver WL. Global patterns in root decomposition: Comparisons of climate and litter quality effects. Oecologia, 2001, 129: 407-419
[3] Liu Y, Liu S, Wan S, et al. Effects of experimental throughfall reduction and soil warming on fine root biomass and its decomposition in a warm temperate oak forest. Science of the Total Environment, 2017, 574: 1448-1455
[4] Hines J, Reyes M, Mozder TJ, et al. Genotypic trait variation modifies effects of climate warming and nitrogen deposition on litter mass loss and microbial respiration. Global Change Biology, 2014, 20: 3780-3789
[5] Sariyildiz T, Küçük M. Litter mass loss rates in deciduous and coniferous trees in Artvin, northeast Turkey: Relationships with litter quality, microclimate, and soil characteristics. Turkish Journal of Agriculture and Forestry, 2008, 32: 547-559
[6] Berg B. Decomposition of root litter and some factors regulating the process: Long-term root litter decomposition in a Scots pine forest. Soil Biology and Biochemistry, 1984, 16: 609-617
[7] Hobbie SE, Oleksyn J, Eissenstat DM, et al. Fine root decomposition rates do not mirror those of leaf litter among temperate tree species. Oecologia, 2010, 162: 505-513
[8] Goebel M, Hobbie SE, Bulaj B, et al. Dcomposition of the fine root branching orders: Linking carbon and nutrient dynamics belowground to fine root function and structure. Ecological Monographs, 2011, 81: 89-102
[9] Xu Y-Q (许玉庆), Xiang W-H (项文化), Zeng Y-L (曾叶霖), et al. Fine root decomposition pattern of forest ecosystem in China and research progress of controlling factors. Guangxi Forestry Science (广西林业科学), 2015, 44 (2): 149-155 (in Chinese)
[10] Zeng F (曾锋), Qiu Z-J (邱治军), Xu X-Y (许秀玉). Progress in the study of forest litter decomposition. Ecology and Environmental Sciences (生态环境学报), 2010, 19(1): 239-243 (in Chinese)
[11] Cusack DF, Chou WW, Yang WH, et al. Controls on long-term root and leaf litter decomposition in neotropical forests. Global Change Biology, 2010, 15: 1339-1355
[12] Yang YS, Chen GS, Guo JF, et al. Decomposition dynamic of fine roots in a mixed forest of Cunninghamia lanceolata and Tsoongiodendron odorum in mid-subtro-pics. Annals of Forest Science, 2004, 61: 65-72
[13] Kaspari M, Garcia MN, Harms KE, et al. Multiple nutrients limit litterfall and decomposition in a tropical forest. Ecology Letters, 2008, 11: 35-43
[14] Swift MJ, Heal OW, Anderson JM. Decomposition in terrestrial ecosystems. The Quarterly Review of Biology, 1981, 83: 2772-2774
[15] Yan H-Y (严海元). Study on Microbial Decomposition and Nutrient Release Characteristics of Litter in Pinus massoniana Forest in Jinyun Mountain. PhD Thesis. Chongqing: Southwestern University, 2011 (in Chinese)
[16] Hu Z, Xu C, Mcdowell NG, et al. Linking microbial community composition to C loss rates during wood decomposition. Soil Biology and Biochemistry, 2017, 104: 108-116
[17] Chen F-L (陈法霖), Zheng H (郑华), Ouyang Z-Y (欧阳志云), et al. A response of microbial community composition in soil to changes of litter composition. Acta Pedologica Sinica (土壤学报), 2011, 48(3): 603-611 (in Chinese)
[18] Sarathchandra SU, Ghani A, Yeates GW, et al. Effect of nitrogen and phosphate fertilisers on microbial and nematode diversity in pasture soils. Soil Biology and Biochemistry, 2001, 33: 953-964
[19] Liang R-B (梁儒彪), Liang J (梁进), Qiao M-F (乔明锋), et al. Effects of simulated exudate C:N stoichiometry on dynamics of carbon and microbial community composition in a subalpine coniferous forest of western Sichuan, China. Chinese Journal of Plant Ecology (植物生态学报), 2015, 39(5): 466-476 (in Chinese)
[20] Högberg MN, Högberg P, Myrold DD. Is microbial community composition in boreal forest soils determined by pH, C-to-N ratio, the trees, or all three? Oecologia, 2007, 150: 590-601
[21] Mao L (毛琳). The Mechanisms of Resource Availability Regulating Plants and Their Associated Arbuscular Mycorrhizal Fungal Communities. PhD Thesis. Lanzhou: Lanzhou University, 2015 (in Chinese)
[22] Liu L, Gundersen P, Zhang T, et al. Effects of phosphorus addition on soil microbial biomass and community composition in three forest types in tropical China. Soil Biology and Biochemistry, 2012, 44: 31-38
[23] Andersson M, Kjller A, Struwe S. Microbial enzyme activities in leaf litter, humus and mineral soil layers of European forests. Soil Biology and Biochemistry, 2004, 36: 1527-1537
[24] Wan X-H (万晓华), Huang Z-Q (黄志群), He Z-M (何宗明), et al. Effects of broadleaf plantation and Chinese fir (Cunninghamia lanceolata) plantation on soil carbon and nitrogen pools. Chinese Journal of Applied Ecology (应用生态学报), 2013, 24(2): 345-350 (in Chinese)
[25] Wan X-H (万晓华), Huang Z-Q (黄志群), He Z-M (何宗明), et al. Changes of above- and belowground carbon input affected soil microbial biomass and community composition in two tree species plantations in subtropical China. Acta Ecologica Sinica (生态学报), 2016, 36(12): 3582-3590 (in Chinese)
[26] White DC, Davis WM, Nickels JS, et al. Determination of the sedimentary microbial biomass by extractable lipid phosphate. Oecologia, 1978, 40: 51-62
[27] Bossio DA, Scow KM. Impacts of carbon and flooding on soil microbial communities: Phospholipid fatty acid profiles and substrate utilization patterns. Microbial Ecology, 1998, 35: 265-278
[28] Wang W, Zhang X, Tao N, et al. Effects of litter types, microsite and root diameters on litter decomposition in Pinus sylvestris plantations of northern China. Plant and Soil, 2014, 374: 677-688
[29] Ostertag R, Hobbie SE. Early stages of root and leaf decomposition in Hawaiian forests: Effects of nutrient availability. Oecologia, 1999, 121: 564-573
[30] Scheu S, Schauermann J. Decomposition of roots and twigs: Effects of wood type (beech and ash), diameter, site of exposure and macrofauna exclusion. Plant and Soil, 1994, 163: 13-24
[31] Jin B-B (靳贝贝), Guo Q-X (国庆喜). Root decomposition and nutrient dynamics of Quercus mongolica and Betula platyphylla. Acta Ecologica Sinica (生态学报), 2013, 33(8): 2416-2424 (in Chinese)
[32] Liu R, Huang Z, Mccormack ML, et al. Plasticity of fine-root functional traits in the litter layer in response to nitrogen addition in a subtropical forest plantation. Plant and Soil, 2017, 415: 317-330
[33] Li A, Fahey TJ, Pawlowska TE, et al. Fine root decomposition, nutrient mobilization and fungal communities in a pine forest ecosystem. Soil Biology and Biochemistry, 2015, 83: 76-83
[34] Wright MS, Covich AP. Relative importance of bacteria and fungi in a tropical headwater stream: Leaf decomposition and invertebrate feeding preference. Microbial Ecology, 2005, 49: 536-546
[35] Gulis V, Suberkropp K. Effect of inorganic nutrients on relative contributions of fungi and bacteria to carbon flow from submerged decomposing leaf litter. Microbial Ecology, 2003, 45: 11-19
[36] Six J, Feller C, Denef K, et al. Soil organic matter, biota and aggregation in temperate and tropical soils: Effects of no-tillage. Agronomie, 2002, 22: 755-775
[37] Liu Z-W (刘增文), Duan E-J (段而军), Gao W-J (高文俊), et al. Effects of leaf litter replacement on soil biological and chemical characteristics in main artificial forests in Qinling Mountains. Chinese Journal of Applied Ecology (应用生态学报), 2008, 19(4): 704-710 (in Chinese)
[38] Broder MW, Wagner GH. Microbial colonization and decomposition of corn, wheat, and soybean residue. Soil Science Society of America Journal, 1988, 52: 112-117
[39] Li S-S (李姗姗), Wang Z-W (王正文), Yang J-J (杨俊杰). Changes in soil microbial communities during litter decomposition. Biodiversity Science (生物多样性), 2016, 24(2): 195-204 (in Chinese)
[40] Versini A, Mareschal L, Matsoumbou T, et al. Effects of litter manipulation in a tropical Eucalyptus plantation on leaching of mineral nutrients, dissolved organic nitrogen and dissolved organic carbon. Geoderma, 2014, 232-234: 426-436
[41] Chapman SK, Koch GW. What type of diversity yields synergy during mixed litter decomposition in a natural forest ecosystem? Plant and Soil, 2007, 299: 153-162
[42] Gosz JR, Likens GE, Bormann FH. Nutrient release from decomposing leaf and branch litter in the Hubbard Brook Forest, New Hampshire. Ecological Monographs, 1973, 43: 173-191
[43] Staaf H, Berg B. Accumulation and release of plant nutrients in decomposing Scots pine needle litter: Long-term decomposition in a Scots pine forest II. Canadian Journal of Botany, 1982, 60: 1561-1568
[44] Melillo JM, Aber JD, Muratore JF. Nitrogen and lignin control of hardwood leaf litter decomposition dynamics. Ecology, 1982, 63: 621-626
[45] Prescott CE. Does nitrogen availability control rates of litter decomposition in forests? Plant and Soil, 1995, 169: 83-88
[46] Langley JA, Chapman SK, Hungate BA. Ectomycorrhizal colonization slows root decomposition: The post-mortem fungal legacy. Ecology Letters, 2006, 9: 955-959
[47] Tlalka M, Bebber D, Darrah PR, et al. Mycelial Networks: Nutrient Uptake, Translocation and Role in Ecosystems. London: Academic Press, 2008
[48] Shearer G, Kohl DH. N₂-fixation in field settings: Estimations based on natural ¹⁵N abundance. Functional Plant Biology, 1986, 13: 699-756
[49] Macko SA, Fogel ML, Hare PE, et al. Isotopic fractionation of nitrogen and carbon in the synthesis of amino acids by microorganisms. Chemical Geology Isotope Geoscience, 1987, 65: 79-92
[50] Langley JA, Hungate BA. Mycorrhizal controls on belowground litter quality. Ecology, 2008, 84: 2302-2312
[51] Yin H (殷红). Effect of concentration of magnesium ion on the growth of Pleurotus ostreatu. Edible Fungi (食用菌), 1997(4): 4-5 (in Chinese)
[52] Li M (李明), Zhang Z (张灼). Studies on the ability of potassium bacteria JF88 strain dissolving potassium and its application. Joural of Biology (生物学杂志), 2001, 18(2): 24-25 (in Chinese)
[53] Dutton MV, Evans CS. Oxalate production by fungi: Its role in pathogenicity and ecology in the soil environment. Canadian Journal of Microbiology, 1996, 42: 881-895
[54] Hoffland E, Kuyper TW, Wallander H, et al. The role of fungi in weathering. Frontiers in Ecology and the Environment, 2004, 2: 258-264
[55] Zhang L-H (张立华), Ye G-F (叶功富), Lin Y-M(林益明), et al. Nutrient release and energy return during the decomposition of fine roots in Casuarina equisetifolia plantations. Journal of Xiamen University (Natural Science) (厦门大学学报: 自然版), 2007, 46(2): 268-273 (in Chinese)
[56] Chen L-Z (陈灵芝). Nutrient Cycling in Forest Ecosystem in China. Beijing: Meteorological Press, 1997 (in Chinese)
[57] Wang N (王娜), Cheng R-M (程瑞梅), Xiao W-F (肖文发), et al. Dynamics of fine root decomposition and its affecting factors of Pinus massoniana in the Three Gorges Reservoir Area, China. Chinese Journal of Applied Ecology (应用生态学报), 2017, 28 (2): 391-398 (in Chinese)

亚热带米老排和杉木细根分解过程中养分与微生物群落组成的变化

Dynamics of nutrient concentration and microbial community composition during fine root decomposition in subtropical Mytilaria laosensis and Cunninghamia lanceolata plantations.

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