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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

坡度对藏锦鸡儿(Caragana tibetica)灌丛土壤属性和植物间相互作用的影响

  • 方超 ,
  • 袁自强 ,
  • 刘雪伟 ,
  • 裴九英 ,
  • 赵东敏 ,
  • 叶建圣
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  • 兰州大学生命科学学院/干旱农业生态研究所/草地农业生态系统国家重点实验室, 甘肃 兰州 730000
方超(1989-),男,湖北赤壁人,博士研究生,研究方向为全球变化与生态系统模拟。Email:fangch12@lzu.edu.cn

收稿日期: 2014-07-18

  修回日期: 2014-09-01

  网络出版日期: 2015-11-20

基金资助

国家自然科学基金项目(31570467,31200373)

Effects of Slope on Soil Properties and the Interaction of Caragana tibetica Shrub Species in Loess Plateau of China

  • Fang Chao ,
  • Yuan Ziqiang ,
  • Liu Xuewei ,
  • Pei Jiuying ,
  • Zhao Dongmin ,
  • Ye Jiansheng
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  • School of Life Sciences/Institute of Arid Agroecology/State Key Laboratory of Grassland Agro-ecosystem, Lanzhou University, Lanzhou 730000, China

Received date: 2014-07-18

  Revised date: 2014-09-01

  Online published: 2015-11-20

摘要

研究了黄土高原半干旱丘陵地区西南坡向(158°~185°)两个坡度下藏锦鸡儿(Caragana tibetica)灌丛的肥岛效应以及与其他植物的相互作用。结果表明:在坡度为19°时,藏锦鸡儿灌丛斑块内除藏锦鸡儿之外的其他植物盖度是灌丛间地的2.1倍,土壤有机C、全N和全P含量略高于灌丛间,但无显著差异;在坡度为40°时,灌丛斑块内除藏锦鸡儿之外的植物盖度是灌丛间地的12.2倍,土壤有机C、全N含量均显著高于灌丛间地,分别高43.4%、38.1%,全P含量无显著差异。总盖度、藏锦鸡儿灌丛盖度、草本植物盖度,以及灌丛间地的非锦鸡儿植物盖度、土壤有机C、土壤N和全P含量在这两个坡度下均无显著差异。灌丛斑块非锦鸡儿植物盖度、土壤有机C、全N、全P含量在坡度40°下显著高于19°坡度。这表明在黄土高原半干旱区,随着坡度增大,灌丛的肥岛效应以及灌丛与其他植物的正相互作用有增强趋势。

本文引用格式

方超 , 袁自强 , 刘雪伟 , 裴九英 , 赵东敏 , 叶建圣 . 坡度对藏锦鸡儿(Caragana tibetica)灌丛土壤属性和植物间相互作用的影响[J]. 中国沙漠, 2015 , 35(6) : 1607 -1611 . DOI: 10.7522/j.issn.1000-694X.2014.00137

Abstract

The effects of fertile island of Caragana tibetica and the interaction between C. tibetica and other plant species were studied in Loess Plateau of China. The results showed that the value of other plant(non-C. tibetica) cover under the canopy of shrubs increased by 110%, but there were no significant differences in content of organic C, total N and total P between the soils under shrub canopies and in open spaces under slope of 19 and aspect of 158. Under the slope of 40 and aspect of 185, the concentrations of organic C, total N in the soils, and the values of other plant cover under the canopy of shrubs increased significantly by 43.4%, 38.1%, and 11.2 times, respectively, compared with those in the open spaces. However, there were no significant differences in the concentrations of organic C, total N and total P in the open space soils and the values of relative plant cover in the open spaces, total cover, C. tibetica shrub cover and grass cover between the two slopes. But the concentrations of organic C, total N and total P in soils, and the values of relative plant cover under the canopy of shrubs were significantly higher under the slope of 40 than those under the slope of 19. The results indicated that with the increasing of slope, there were stronger trends in the effects of fertile island of C. tibetica and the facilitation between C. tibetica and other plant species in the semiarid area in the Loess Plateau of China. And it offered a scientific basis for the vegetation restoration and reconstruction in Loess Plateau of China.

参考文献

[1] 王礼先.中国水利百科全书一水土保持分册[M].北京:中国水利水电出版社,2004.
[2] 张薇,胡跃高,黄国和,等.西北黄土高原柠条种植区土壤微生物多样性分析[J].微生物学报,2007,47(5):751-756.
[3] 周忠学,孙虎,李智佩.黄土高原水蚀荒漠化发生特点及其防治模式[J].干旱区研究,2005,22(1):29-34.
[4] 苏永中,赵哈林.科尔沁沙地不同土地利用和管理方式对土壤质量性状的影响[J].应用生态学报,2003,14(10):1681-1686.
[5] 程积民,万惠娥,杜锋.黄土高原半干旱区退化灌草植被的恢复与重建[J].林业科学,2001,37(4):50-57.
[6] Pugnaire F I,Haase P.Facilitation between higher plant species in a semiarid environment[J].Ecology,1996,77(5):1420-1426.
[7] Wezel A,Rajot J L,Herbrig C.Influence of shrubs on soil characteristics and their function in Sahelian agro-ecosystems in semi-arid Niger[J].Journal of Arid Environments,2002,44:383-398.
[8] 张宏,史培军,郑秋红.半干旱地区天然草地灌丛化与土壤异质性关系研究进展[J].植物生态学报,2001,25(3):366-370.
[9] Martinez-Meza E,Whitford W G.Stemflow,throughfall and channelization of stemflow by roots in three Chihuahuan desert shrubs[J].Journal of arid environments,1996,32(3):271-287.
[10] 赵哈林,苏永中,张华,等.灌丛对流动沙地土壤特性和草本植物的影响[J].中国沙漠,2007,27(3):385-390.
[11] Titus J H,Nowak R S,Smith S D.Soil resource heterogeneity in the Mojave desert[J].Journal of Arid Environments,2002,52:269-292.
[12] 裴世芳,傅华,陈亚明,等.放牧与围封下霸王灌丛对土壤肥力的影响[J].中国沙漠,2004,24(6):763-767.
[13] Maestre F T,Cortina J.Remnant shrubs in Mediterranean semi-arid steppes:effects of shrub size,abiotic factors and species identity on understory richness and occurrence[J].Acta Oecologica,2005,27:161-169.
[14] 张炜平,王根轩.植物邻体间的正相互作用[J].生态学报,2010,30(19):5371-5380.
[15] Connell J H.On the prevalence and relative importance of interspecific competition:evidence from field experiments[J].The American Naturalist,1983,122(5):661-696.
[16] Bruno J F,Stachowicz J J,Bertness M D.Inclusion of facilitation into ecological theory[J].Trends in Ecology and Evolution,2003,18(3):119-125.
[17] Muttlak H A,McDonald L L.Ranked set sampling and the line intercept method:a more efficient procedure[J].Biometrical Journal,1992,34(3):329-346.
[18] Schlesinger W H,Reynolds J F,Cunningham G L.Biological feedbacks in global desertification[J].Science,1990,47:1043-1048.
[19] Schlesinger W H,Raikes J A,Hartley A E,et al.On the spatial pattern of soil nutrients in desert ecosystems[J].Ecology,1996,77(2):364-374.
[20] 苏永中,赵哈林,张铜会.几种灌木、半灌木对沙地土壤肥力影响机制的研究[J].应用生态学报,2002,13(7):802-806.
[21] Barth R C,Klemmedson J O.Shrub-induced spatial of dry matter,nitrogen,and organic carbon[J].Soil Science Society of America Journal,1978,64:635-639.
[22] Garner W,Steinberger Y.Approposed mechanism for the formation of 'fertile islands' in the desert ecosystem[J].Journal of Arid Environments,1998,16:257-262.
[23] Michels K.Wind erosion in the southern Sahelian Zone:Extent,Control and Effects on Millet Production[M].Stuttgart:Verlag Ulrich E.Grauer,1994:99.
[24] Michels K,Sivakumar M V K,Allison B E.Wind erosion in the southern Sahelian zone and induced constraints to pearl-millet production[J].Agricultural and Forest Meteorology,1993,67(1/2):65-77.
[25] Whitford W G,Anderson J,Rice P M.Stemflow contribution to the 'fertile island' effect in creosotebush,Larrea tridentate[J].Journal of Arid Environments,1997,35(3):451-457.
[26] Greenlee J T,Callaway R M.Abiotic stress and the relative importance of interference and facilitation in montane bunchgrass communities in western Montana[J].The American Naturalist,1996,148(2):386-396.
[27] Bertness M D,Callaway R M.Positive interactions in communities[J].Trends in Ecology and Evolution,1994,9(5):191-193.
[28] Callaway R M.Positive interactions among plants[J].Botanical Review,1995,61(4):306-349.
[29] Callaway R M,Brooker R W,Choler P,et al.Positive interactions among alpine plants increase with stress[J].Nature,2002,417:844-848.
[30] 魏盼盼,张荣,王璠,等.青藏高原东缘高寒草甸群落物种间相互作用[J].兰州大学学报(自然科学版),2011,47(5):79-89.
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