天津滨海湿地3种典型群落土壤理化性质及碳氮差异性分析

doi:10.7525/j.issn.1673-5102.2015.03.013

摘要/Abstract

摘要： 以天津滨海湿地3种典型群落即芦苇（Phragmites australis）群落、碱蓬（Suaeda glauca）群落和獐毛（Aeluropus sinensis）群落为研究对象，比较了各群落不同深度土壤的盐度、容重、pH值、有机碳密度及土壤氮等生态特征，结果表明：3种群落0～30 cm土壤盐度依次为獐毛群落＞碱蓬群落＞芦苇群落；容重依次为獐毛群落＞碱蓬群落＞芦苇群落；pH值依次为碱蓬群落＞獐毛群落＞芦苇群落。3种群落土壤0～30 cm的有机碳密度，以芦苇群落为最高（7.06 kg·m^-2），獐毛群落次之（6.38 kg·m^-2），碱蓬群落最低（5.70 kg·m^-2）。各群落土壤有机碳密度均以表层为最高，随着土壤深度的增加，有机碳密度呈下降趋势。3种群落0～30 cm土壤中总氮含量以芦苇群落最高，獐毛群落最低；NO^-₃-N含量从大到小依次是：碱蓬群落＞芦苇群落＞獐毛群落，而NH⁺₄-N含量是：芦苇群落＞碱蓬群落＞獐毛群落。土壤有机碳密度与pH值呈显著负相关；土壤总氮与容重及pH值分别呈显著负相关；土壤铵态氮与土壤有机碳密度、总氮呈显著正相关；土壤硝态氮与土壤有机碳密度呈显著正相关，而与其它土壤因子的相关性不显著。

关键词: 滨海湿地, 芦苇群落, 碱蓬群落, 獐毛群落, 土壤特征

Abstract: We measured the ecological characteristics including salinity (EC), bulk density, pH, organic carbon density and nitrogen content in different depths of soils from Phragmites australis community, Suaeda glauca community and Aeluropus sinensis community in coastal wetlands. The order of soil salinity in 0-30 cm depth soil was: the highest in the A.sinensis community and the lowest in the P.australis community. For bulk density, the highest value was in the A.sinensis community and the lowest in the P.australis community. The pH was the highest in the S.glauca community and the lowest in the P.australis community. Within these community, organic carbon density in 0-30 cm depth soil was the highest in the P.australis community (7.06 kg·m^-2), followed by A.sinensis community (6.38 kg·m^-2) and the lowest in the S.glauca community (5.70 kg·m^-2). Organic carbon density in the topsoil (0-10 cm) was the highest, and then decreased with the increasing of the soil depth. The highest total nitrogen content in 0-30 cm depth soils was from P.australis community and the lowest was from A.sinensis community. The order of NO^-₃-N content was S.glauca＞P.australis＞A.sinensis community, and the order of NH⁺₄-N was P.australis＞S.glauca＞A.sinensis. There were significant negative correlations between organic carbon density and pH value, and between total nitrogen, pH and bulk density. NH⁺₄-N content had significant positive correlations with both organic carbon density and total nitrogen, and NO^-₃-N content had a significant positive correlation with organic carbon density, but no significant correlation with other factors.

Key words: coastal wetland, Phragmites australis community, Suaeda glauca community, Aeluropus sinensis community, soil characteristics

中图分类号:

陈国平；程珊珊；刘静；丛明旸；高鑫；王晖. 天津滨海湿地3种典型群落土壤理化性质及碳氮差异性分析[J]. 植物研究, 2015, 35(3): 406-411.

CHEN Guo-Ping；CHENG Shan-Shan；LIU Jing；CONG Ming-Yang；GAO Xin；WANG Hui；SHI Fu-Chen. Physical-chemical Properties of Soil,C and N of Three Typical Communities in Tianjin Coastal Wetland[J]. Bulletin of Botanical Research, 2015, 35(3): 406-411.

参考文献

1.张旭辉,李典友,潘根兴,等.我国湿地土壤资源保护与气候变化问题［J］.气候变化研究进展,2008,4(4):202-208.

2.汪承焕,王卿,赵斌,等.盐沼植物群落的分带及其形成机制［J］.南京大学学报,2007,43:41-55.

3.张林海,曾从盛,仝川.闽江河口湿地芦苇和互花米草生物量季节动态研究［J］.亚热带资源与环境学报,2008,3(2),25-33.

4.刘钰,李秀珍,闫中正,等.长江口九段沙盐沼湿地芦苇和互花米草生物量及碳储量［J］.应用生态学报,2013,24(8):2129-2134.

5.Alexander knohl,edzo veldkamp.Indirect feedbacks to rising CO₂［J］.Nature,2011,475:177-178.

6.van Groenigen K J,Osenberg C W,Hungate B A.Increased soil emissions of potent greenhouse gases under increased atmospheric CO₂［J］.Nature,2011,475(7355):214-216.

7.张金凤,李增嘉.不同水肥条件下黄河三角洲盐土的N₂O排放速率［J］.生态学杂志,32(7):1703-1709.

8.刘长娥,杨永兴.九段沙芦苇湿地生态系统N,P,K的循环特征［J］.生态学杂志,2008,27(3):418-424.

9.吕国红,周莉,赵先丽,等.芦苇湿地土壤有机碳和全氮含量的垂直分布特征［J］.应用生态学报,2006,17(3):384-389.

10.Neves J P,Ferreira L F,Simões M P,et al.Primary production and nutrient content in two salt marsh species,Atriplex portulacoides L. and Limoniastrum monopetalum L.,in Southern Portugal［J］.Estuaries and coasts,2007,30(3):459-468.

11.刘家宜.天津植物志［M］.天津:天津科学技术出版社,2004.

12.郝翠,李洪远,李姝娟,等.天津滨海湿地土壤有机碳储量及其影响因素分析［J］.环境科学研究,2011,24(11):1276-1282.

13.牟长城,王彪,卢慧翠,等.大兴安岭天然沼泽湿地生态系统碳储量［J］.生态学报,2013,33(16):4956-4965.

14.Cerri C E P,Easter M,Paustian K,et al.Simulating SOC changes in 11 land use change chronosequences from the Brazilian Amazon with RothC and Century models［J］.Agriculture,ecosystems & environment,2007,122(1):46-57.

15.Vince S W,Snow A A.Plant zonation in an Alaskan salt marsh:I. Distribution,abundance and environmental factors［J］.The Journal of Ecology,1984,72:651-667.

16.Chapman V J.Coastal Vegetation［M］.Oxford:Pergamon Press,1976.

17.梁启鹏,余新晓,庞卓,等.不同林分土壤有机碳密度研究［J］.生态环境学报,2010,19(4):889-893.

18.许乃政,张桃林,王兴祥,等.长江三角洲地区土壤有机碳研究［J］.长江流域资源与环境,2010,19(7):790-796.

19.董洪芳,于君宝,孙志高,等.黄河口滨岸潮滩湿地植物-土壤系统有机碳空间分布特征［J］.环境科学,2010,31(6):1594-1599.

20.王仁忠，李建东.小獐毛种群密度和生物量与有性生殖特征的相关分析［J］.应用生态学报,1999,10(1),23-25.

21.董必慧,杨小兰.江苏沿海滩涂泌盐植物-獐毛的形态特征及经济性状［J］.中国野生植物资源,2006,25(5):25-26.

22.周莉,李保国,周广胜.土壤有机碳的主导影响因子及其研究进展［J］.地球科学进展,2005,20(1):99-105.

23.Ma W K,Bedard-Haughn A,Siciliano S D,et al.Relationship between nitrifier and denitrifier community composition and abundance in predicting nitrous oxide emissions from ephemeral wetland soils［J］.Soil Biology and Biochemistry,2008,40(5):1114-1123.

24.Liu X,Chen C R,Wang W J,et al.Soil environmental factors rather than denitrification gene abundance control N₂O fluxes in a wet sclerophyll forest with different burning frequency［J］.Soil Biology and Biochemistry,2013,57:292-300.

25.Dobbie K E,Smith K A.Impact of different forms of N fertilizer on N₂O emissions from intensive grassland［J］.Nutrient cycling in Agroecosystems,2003,67(1):37-46.

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