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  • CN 62-1070/P
  • ISSN 1000-694X
  • 双月刊 创刊于1981年
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生物与土壤

古尔班通古特沙漠典型灌木群落土壤化学计量特征及其影响因素

  • 陶冶 ,
  • 吴甘霖 ,
  • 刘耀斌 ,
  • 张元明
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  • 1. 安庆师范大学 生命科学学院/皖西南生物多样性研究与生态保护安徽省重点实验室, 安徽 安庆 246133;
    2. 中国科学院 新疆生态与地理研究所 干旱区生物地理与生物资源重点实验室, 新疆 乌鲁木齐 830011;
    3. 固原市工业和信息化局, 宁夏 固原 756000
陶冶(1983-),男,安徽宿州人,博士,讲师,主要从事荒漠及森林植物生态学研究。E-mail:xishanyeren@163.com

收稿日期: 2016-03-03

  修回日期: 2016-06-07

  网络出版日期: 2017-03-20

基金资助

国家重点基础研究发展计划项目(2014CB954202);中国科学院西部博士项目(XBBS-2014-20);新疆杰出青-人才项目(2013711013)

Soil Stoichiometry and Their Influencing Factors in Typical Shrub Communities in the Gurbantunggut Desert, China

  • Tao Ye ,
  • Wu Ganlin ,
  • Liu Yaobin ,
  • Zhang Yuanming
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  • 1. College of Life Sciences/The Province Key Laboratory of the Biodiversity Study and Ecology Conservation in Southwest Anhui, Anqing Normal University, Anqing 246133, Anhui, China;
    2. Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
    3. Bureau of Industry and Information Technology of Guyuan, Guyuan 756000, Ningxia, China

Received date: 2016-03-03

  Revised date: 2016-06-07

  Online published: 2017-03-20

摘要

对古尔班通古特沙漠3种典型灌木群落77个样地的0~10 cm层土壤及环境因子进行调查取样,分析了土壤有机碳(C)、全氮(N)、全磷(P)及全钾(K)的化学计量特征及其影响因素。结果表明:土壤C、N、P、K含量均值分别为1.057、0.133、0.319、14.11 g·kg-1,C∶N、C∶P、C∶K、N∶P、N∶K、P∶K值分别为8.124、3.486、0.099、0.434、0.013、0.034。本研究土壤C、N、P养分元素含量及其化学计量比均远低于全球及全国平均水平。C∶N和P含量具有较高的稳定性(CV=19.26%和22.46%),而K、C∶K、N∶K和P∶K变异性较强(CV=52.17%~80.30%)。土壤化学计量特征在不同群落类型间、不同结皮类型间均有一定差异。C-N、C-K、P-K之间以及土壤养分与其化学计量比之间具有显著的非线性耦合关系,可用二次函数、幂函数或指数函数等非线性函数表征。相关性分析和CCA排序分析表明,除C∶N不受所调查环境因子影响外,土壤化学计量特征主要受经度、纬度、年降水量、生物结皮发育等级、电导率及海拔的影响。

本文引用格式

陶冶 , 吴甘霖 , 刘耀斌 , 张元明 . 古尔班通古特沙漠典型灌木群落土壤化学计量特征及其影响因素[J]. 中国沙漠, 2017 , 37(2) : 305 -314 . DOI: 10.7522/j.issn.1000-694X.2016.00087

Abstract

The soils in 0-10 cm layer and the corresponding environmental factors in 77 sampling plots of three typical shrub communities in the Gurbantunggut Desert were surveyed, and the soil stoichiometric characteristics of soil organic carbon (C), total nitrogen (N), total phosphorus (P) and total potassium (K) and their influencing factors were studied. The results showed that the average soil C, N, P and K contents were 1.057, 0.133, 0.319 and 14.11 g·kg-1, respectively; and the average soil C∶N, C∶P, C∶K, N∶P, N∶K and P∶K were 8.124, 3.486, 0.099, 0.434, 0.013 and 0.034, respectively. By contrast, the soil nutrient contents and their stoichiometric ratios were far lower than global and Chinese levels. The soil C∶N and P represented high stability (CV=19.26% and 22.46%), while soil K, C∶K, N∶K and P∶K showed moderate variability (CV=52.17%-80.30%). The soil stoichiometric traits differed to a certain extent in different community types and in different biological soil crust types. Quadratic function, power function and exponential function can be used to characterize the non-linear coupling relationships of C vs. N, C vs. K, P vs. K, and soil nutrients vs. their stoichiometric ratios. The correlation analysis and CCA ordination indicated that, except for soil C∶N (which was not affected by any environmental factor in this study), the soil stoichiometric traits were mainly influenced by longitude, latitude, mean annual precipitation, developmental level of biological soil crust, electrical conductivity and elevation.

参考文献

[1] Elser J J,Sterner R W,Gorokhova E,et al. Biological stoichiometry from genes to ecosystems[J].Ecology Letters,2000,3:540-550.
[2] Güsewell S.N∶P ratios in terrestrial plants:variation and functional significance[J].New Phytologist,2004,164(2):243-266.
[3] Koerselman W,Meuleman A F M.The vegetation N∶P ratios:a new tool to detect the nature of nutrient limitation[J].Journal of Applied Ecology,1996,33:1441-1450.
[4] Sardans J,Rivas-Ubach A,Pe uelas J.The elemental stoichiometry of aquatic and terrestrial ecosystems and its relationships with organismic lifestyle and ecosystem structure and function:a review and perspectives[J].Biogeochemistry,2012,111:1-39.
[5] 贺金生,韩兴国.生态化学计量学:探索从个体到生态系统的统一化理论[J].植物生态学报,2010,34(1):2-6.
[6] 王绍强,于贵瑞.生态系统碳氮磷元素的生态化学计量学特征[J].生态学报,2008,28(8):3938-3949.
[7] 黄昌勇,徐建明.土壤学[M].北京:中国农业出版社,2010.
[8] 马云波,许中旗,张岩,等.冀北山区华北落叶松人工林对土壤化学性质的影响[J].水土保持学报,2015,29(4):115-120.
[9] 陆媛,陈云明,曹扬,等.黄土高原子午岭辽东栎林植物和土壤碳氮磷化学计量学特征[J].水土保持学报,2015,29(3):197-202.
[10] 朱秋莲,邢肖毅,张宏,等.黄土丘陵沟壑区不同植被区土壤生态化学计量特征[J].生态学报,2013,33(15):4674-4682.
[11] 王维奇,仝川,贾瑞霞.不同淹水频率下湿地土壤碳氮磷生态化学计量学特征[J].水土保持学报,2010,24(3):238-242.
[12] 李从娟,徐新文,孙永强,等.不同生境下三种荒漠植物叶片及土壤C、N、P的化学计量特征[J].干旱区地理,2014,37(5):976-984.
[13] 张元明,王雪芹.准噶尔荒漠生物结皮研究[M].北京:科学出版社,2008.
[14] Whitford W G.Ecology of Desert Systems[M].London,UK:Academic Press,2002.
[15] 王雪芹,蒋进,雷加强,等.古尔班通古特沙漠短命植物分布及其沙面稳定意义[J].地理学报,2003,58(4):598-605.
[16] 钱亦兵,吴兆宁,张立运,等.古尔班通古特沙漠短命植物的空间分布特征[J].科学通报,2007,52(19):2299-2306.
[17] Tao Y,Zhang Y M,Downing A.Similarity and difference in vegetation structure of three desert shrub communities under the same temperate climate but with different microhabitats[J].Botanical Studies,2013,54:59.
[18] 李从娟,雷加强,徐新文,等.古尔班通古特沙漠土壤水分与化学性质的空间分布[J].生态学报,2014,34(15):4380-4389.
[19] 杨海峰,钱亦兵,蒋超,等.古尔班通古特沙漠南缘主要土壤化学特征的空间异质性[J].中国沙漠,2010,30(2):319-325.
[20] Wu N,Zhang Y M,Downing A.Comparative study of nitrogenase activity in different types of biological soil crusts in the Gurbantunggut Desert,Northwestern China[J].Journal of Arid Environments,2009,73:828-833.
[21] 张立运,陈昌笃.论古尔班通古特沙漠植物多样性的一般特点[J].生态学报,2002,22(11):1923-1932.
[22] 毛祖美,张佃民.新疆北部早春短命植物区系纲要[J].干旱区研究,1994,11(3):1-26.
[23] 鲍士旦.土壤农化分析[M].北京:中国农业出版社,2000.
[24] Hijmans R J,Cameron S E,Parra J L,et al.Very high resolution interpolated climate surfaces for global land areas[J].International Journal of Climatology,2005,25:1965-1978.
[25] ter Braak C J F.Update Notes:CANOCO Version 4.8[Z].Agricultural Mathematics Group,Wageningen,1997.
[26] 高亮,高永,王静,等.土壤覆盖类型对科尔沁沙地南缘土壤有机碳储量的影响[J].中国沙漠,2016,36(5):1357-1364.
[27] 刘文亭,卫智军,吕世杰,等.土地利用方式对荒漠草原草地生物量分配及碳密度的影响[J].中国沙漠,2016,36(3):666-673.
[28] 王绍强,周成虎,李克让,等.中国土壤有机碳库及空间分布特征分析[J].地理学报,2000,55(5):533-544.
[29] 丁凡,廉培勇,曾德慧.松嫩平原草甸三种植物叶片N、P化学计量特征及其与土壤N、P浓度的关系[J].生态学杂志,2011,30(1):77-81.
[30] Tian H Q,Chen G S,Zhang C,et al.Pattern and variation of C∶N∶P ratios in China's soils:a synthesis of observational data[J].Biogeochemistry,2010,98(1/3):139-151.
[31] Cleveland C C,Liptzin D.C∶N∶P stoichiometry in soil:is there a “Redfield ratio” for the microbial biomass?[J].Biogeochemistry,2007,85:235-252.
[32] 曾全超,李鑫,董扬红,等.陕北黄土高原土壤性质及其生态化学计量的纬度变化特征[J].自然资源学报,2015,30(5):870-879.
[33] 王建林,钟志明,王忠红,等.青藏高原高寒草原生态系统土壤碳磷比的分布特征[J].草业学报,2014,23(2):9-19.
[34] 陶冶,张元明.古尔班通古特沙漠4种草本植物叶片与土壤的化学计量特征[J].应用生态学报,2015,26(3):659-665.
[35] 刘作云,杨宁.紫色土丘陵坡地不同恢复阶段土壤生态化学计量特征[J].中国农学通报,2015,31(18):163-167.
[36] 陈发虎,黄伟,靳立亚,等.全球变暖背景下中亚干旱区降水变化特征及其空间差异[J].中国科学:地球科学,2011,41(11):1647-1657.
[37] 张生军,王天明,王涛,等.新疆近50 a来降水量时空变化及其突变分析[J].中国沙漠,2010,30(3):668-674.
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