| 生物土壤与生态 |
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| Effects of Grazing Systems on Germinable Soil Seed Bank of Desert Steppe |
| YAN Rui-rui1,2, WEI Zhi-jun2, XIN Xiao-ping1, LIU Hong-mei2, YANG Jing2, Wurenqiqige3 |
| 1.Key Laboratory of Resources Remote Sensing and Digital Agriculture; Hulunber Grassland Ecosystem Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2.College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Hohhot 010019, China; 3.Life Science and Chemistry School, Hulunber College, Hailar 021008, Inner Mongolia, China |
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Abstract We studied the soil seed bank of Stipa breviflora desert steppe at three sites with different grazing systems, namely a continuously grazed area, a rotationally grazed area including eight rotational paddock, and an enclosed area which had been enclosed since 1999. The germinable seed bank species in the rotationally grazed area, the continuously grazed area and the enclosed area were 11, 9 and 8 species respectively. Rotational grazing increased germinable seed bank plant species of grassland community and perennial grasses. The density of soil seed bank per square meter at the enclosed area (19 533.33±10 552.83 seeds·m-2) was significantly higher than those at the rotationally grazed area (3 233.33±524.21 seeds·m-2) and at the continuously grazed area (2 553.60±2 152.48 seeds·m-2), but the difference between the rotationally grazed area and the continuously grazed area was not significant. The vertical distribution of germinable soil seed bank at different areas had a same tendency, and 75.06%~83.19% of seed was distributed in the soil horizon of 0~5 cm, 14.16%~21.68% was distributed in the soil horizon of 5~10 cm, 0~6.10% was distributed in the soil horizon of 10~15 cm. The density of germinable soil seed bank at each soil horizon in enclosed area was significantly higher than those in rotationally and continuously grazed area, but there was not significant difference between the rotationally grazed area and the continuously grazed area. Margalef index and Shannon-Wiener index of germinable soil seed bank in rotationally grazed area were higher than that in continuously grazed area. The Sorensen's similarity index of germinable soil seed bank between the enclosed area and the rotationally grazing area was the highest, which was 0.857.
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Received: 23 September 2010
Published: 20 May 2011
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[1]于顺利,蒋高明.土壤种子库的研究进展及若干研究热点[J].植物生态学报,2003,27(4):552-560.
[2]Howe C D,Chancellor R J.Factors affecting the viable seed content of soil beneath lowland pastures[J].Journal of Applied Ecology,1983,20:915-922.
[3]Reichman J.Spatial and temporal variation of seed distribution in Sonoran desert soils[J].Journal of Biogeography,1984,11:1-11.
[4]Henderson C B,Petersen K E,Redak R A.Spatial and temporal patterns in the seed bank and vegetation of a desert grassland community[J].Journal of Ecology,1988,76:717-728.
[5]Coffin D P,Lauenroth W K.Spatial and temporal variation in the seed bank of a semiarid grassland [J].American Journal of Botany,1989,67:53-58.
[6]安树青,林向阳,洪必恭.宝华山主要植被类型土壤种子库初探[J].植物生态学报,1996,2(1):41-50.
[7]徐化成,班勇.大兴安岭北部兴安落叶松种子在土壤中的分布及其种子库的持续性[J].植物生态学报,1996,20(1):28-34.
[8]刘济明.贵州茂兰喀斯特森林中华蚊母树群落种子库及其萌发特征[J].生态学报,2001,2(2):197-203.
[9]班勇.土壤种子库的结构与动态[J].生态学杂志,1995,14(6):42-47.
[10]韩有志,王政权.两个林分水曲柳土壤种子库空间格局的定量比较[J].应用生态学报,2003,14(4):487-492.
[11]Kinucan R J,Smeins F E.Soil seed bank of a semiarid Texas grassland under three long-term (36 years) grazing regimes[J].American Midland Naturalist,1992,128:11-21.
[12]Smith R S,Shiel R S,Millward D,et al.Soil seed banks and the effects of meadow management on vegetation change in a 10-year meadow field trial[J].Journal of Applied Ecology,2002,39:279-293.
[13]苏德毕力格,李永宏,雍世鹏,等.冷蒿草原土壤可萌发种子库特征及对放牧的响应[J].生态学报,2000,20:43-48.
[14]包青海,仲延凯,孙维,等.割草干扰对典型草原土壤种子库种子数量与组成的影响:具有生命力的种子数量及其垂直分布[J].内蒙古大学学报(自然科学版),2000,31(1):93-97.
[15]仲延凯,包青海,孙维,等.割草干扰对典型草原土壤种子库种子数量与组成的影响:Ⅳ群落生物量的组成与数量组成的比较[J].内蒙古大学学报(自然科学版),2001,32(5):551-556.
[16]赵萌莉,许志信.内蒙古乌兰察布西部温性荒漠草地土壤种子库初探[J].中国草地,2000(2):46-48.
[17]赵丽娅,李锋瑞,王先之.草地沙化过程地上植被与土壤种子库变化特征[J].生态学报,2003,23:1745-1756.
[18]蒋德明,李荣平,刘志民,等.科尔沁草甸草地放牧和割草条件下土壤种子库研究[J].应用生态学报,2004,15(10):1860-1864.
[19]郑翠玲,曹子龙,赵廷宁,等.围封沙化草地土壤种子库动态研究[J].水土保持研究,2005,12(6):169-171.
[20]孙建华,王彦荣,曾彦军.封育和放牧条件下退化荒漠草地土壤种子库特征[J].西北植物学报,2005,25(10):2035-2042.
[21]苏延桂,李新荣,张景光,等.生物土壤结皮对土壤种子库的影响[J].中国沙漠,2006,26(6):997-1001.
[22]赵丽娅,李兆华,赵锦慧,等.科尔沁沙质草地放牧和围封条件下的土壤种子库[J] .植物生态学报,2006,30(4):617-623.
[23]吴涛,王雪芹,盖世广,等.春夏季放牧对古尔班通古特沙漠南部土壤种子库和地上植被的影响[J].中国沙漠,2009,29(3):499-507.
[24]李青丰,胡春元,王明玖.锡林郭勒草原生态环境劣化原因诊断及治理对策[J].内蒙古大学学报(自然科学版),2003,34(2):166-172.
[25]陈佐忠,汪诗平,王艳芬,等.中国典型草原生态系统[M].北京:科学出版社,2000:125-156.
[26]王涛.中国北方的土地利用与沙漠化[J].中国沙漠,2000,20(2):103-113.
[27]王涛,陈广庭,赵哈林,等.中国北方沙漠化过程及其防治研究的新进展[J].中国沙漠,2006,26(4):507-516.
[28]McDonald A W,Bakker J P,Vegelin K.Seed bank classification and its importance for the restoration of species-rich flood meadows[J].Journal of Vegetation Science,1996,7:156-164.
[29]赵文智,白四明.科尔沁沙地围封草地种子库特征[J].中国沙漠,2001,21(2):204-208.
[30]张志权.土壤种子库[J].生态学杂志,1996,15(6):36-42.
[31]云南大学生物系.植物生态学[M].北京:人民教育出版社,1980:189-191.
[32]Harper J I.Population Biology of Plant[M].New York-London-San Francisco:Academic Press,1977:85-110.
[33]Li Q F.Soil seed bank in a Sandy Land Vegetation in the Ordos Plateau of Inner Mongolia[C].International Symposium on Grassland Management in the Mongolia Plateau,1997:8-13.
[34]曾彦军,王彦荣,南志标,等.阿拉善干旱荒漠区不同植被类型土壤种子库研究[J].应用生态学报,2003,14(9):1457-1463.
[35]Waser N M,Price M V.Effects of grazing on diversity of annual plants in the Sonoran Desert,Arizona,USA[J].Oecologia,1981,50:407-411.
[36]闫瑞瑞.不同放牧制度对短花针茅荒漠草原植被与土壤影响的研究[D].呼和浩特:内蒙古农业大学,2008. |
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2011, Vol. 31 
