+Advanced Search
Home > Archive>Volume 40, Issue 5, 2020 >8-14,47. DOI:10.13961/j.cnki.stbctb.20200803.001
PDF HTML XML Export Cite reminder
Effects of Achnatherum Splendens Patchy on Redistribution of Surface Water Flow in Qinghai Lake Watershed
Author:
Clc Number:

P334;Q945.17

  • Article
    • | |
  • Metrics
    • |
  • Reference [33]
    • |
  • Related [20]
    • | | |
  • Comments
    Abstract:

    [Objective] The impacts of Achnatherum splendens patches on rainfall partitioning and surface runoff were studied to provide a basis for revealing the formation of vegetation patches and the mechanism of water regulation recognition.[Methods] The deep-rooted grass of A. splendens was used in the Qinghai Lake watershed as an indicator plant to calculate the water compensation ratio of A. splendens patches in the horizontal direction by observing the redistribution of rainfall and surface runoff in the crown of A. splendens patches.[Results] ① The throughfall of the A. splendens patch accounted for 70.58% of the total rainfall and was mainly affected by rainfall, rain intensity, and duration. This was similar to most shrubs in arid ecosystems. ② The mean runoff coefficient of the A. splendens patch was 0.45%±0.33%. This was significantly lower than that of the matrix (2.08%±1.46%) and increased with rainfall. ③ The water compensation of the A. splendens patch accounted for 1.13%±1.34% of total rainfall, and it increased with rainfall and rain intensity. The highest value of the proportion of water compensation was 4.94%.[Conclusion] The A. splendens patch can be recharged by the runoff from the matrix in the ecosystem scale, which is the water regulation mechanism of drought adaptation for patchy vegetation in arid regions.

    Reference
    [1] Deblauwe V, Barbier N, Couteron P, et al. The global biogeography of semi-arid periodic vegetation patterns[J]. Global Ecology and Biogeography, 2008,17(6):715-723.
    [2] Getzin S, Yizhaq H, Bell B, et al. Discovery of fairy circles in Australia supports self-organization theory[J]. Proceedings of the National Academy of Sciences, 2016,113(13):3551-3556.
    [3] Kéfi S, Rietkerk M, Alados C L, et al. Spatial vegetation patterns and imminent desertification in Mediterranean arid ecosystems[J]. Nature, 2007,449(7159):213-218.
    [4] Scheffer M, Bascompte J, Brock W A, et al. Early-warning signals for critical transitions[J]. Nature, 2009,461(7260):53-59.
    [5] Barbosa-Briones E, Cardona-Benavides A, Reyes-Hernández H, et al. Ecohydrological function of vegetation patches in semi-arid shrublands of Central Mexico[J]. Journal of Arid Environments, 2019,168:36-45.
    [6] Sheffer E, von Hardenberg J, Yizhaq H, et al. Emerged or imposed:A theory on the role of physical templates and self-organisation for vegetation patchiness[J]. Ecology Letters, 2013,16(2):127-139.
    [7] Muvengwi J, Mbiba M, Ndagurwa H G T, et al. Pulsing hydrology and topography determine the structure and spatial distribution of Cubitermes mounds in a savanna ecosystem[J]. Catena, 2016,145:99-106.
    [8] Magliano P N, Whitworth-Hulse J I, Baldi G. Interception, throughfall and stemflow partition in drylands:Global synthesis and meta-analysis[J]. Journal of Hydrology, 2019,568:638-645.
    [9] Llorens P and Domingo F. Rainfall partitioning by vegetation under Mediterranean conditions:A review of studies in Europe[J]. Journal of Hydrology, 2007,335:37-54.
    [10] 赵明,杨晓楠,陈攀宇,等.灌木斑块格局对产流及产沙过程的影响[J].应用生态学报,2020,31(3):735-743.
    [11] Ludwig J A, Wilcox B P, Breshears D D, et al. Vegetation patches and runoff-erosion as interacting ecohydrological processes in semiarid landscapes[J]. Ecology, 2005,86(2):288-297.
    [12] 李小雁.干旱地区土壤-植被-水文耦合、响应与适应机制[J].中国科学(地球科学),2011, 41(12):1721-1730.
    [13] 杜建会,严平,董玉祥.干旱地区斑块状植被格局形成的水分驱动机制及其研究进展[J].生态学杂志,2012,31(8):2137-2144.
    [14] Merino-Martín L, Breshears D D, Moreno-de Las Heras M, et al. Ecohydrological source-sink interrelationships between vegetation patches and soil hydrological properties along a disturbance gradient reveal a restoration threshold[J]. Restoration Ecology, 2012,20(3):360-368.
    [15] 吴珍兰,卢生莲.论世界芨芨草属(禾本科)的地理分布[J].植物分类学报,1996,34(2):152-161.
    [16] 陈桂琛,彭敏.青海省芨芨草草原的群落特征及其分布规律[J].西北植物学报,1993,13(2):154-162.
    [17] 李凤霞,伏洋,杨琼,等.环青海湖地区气候变化及其环境效应[J].资源科学,2008,30(3):348-353.
    [18] Xin H. A green fervor sweeps the Qinghai-Tibetan Plateau[J]. Science, 2008,321(5889):633-635.
    [19] Jiang Zhiyun, Li Xiaoyan, Wu Huawu, et al. Using electromagnetic induction method to reveal dynamics of soil water and salt during continual rainfall events[J]. Biosystems Engineering, 2016,152:3-13.
    [20] 张法伟,郭竹筠,林丽,等.青海湖芨芨草干草原浅层土壤温度和导温率的基本特征[J].中国农业气象,2012,33(1):66-70.
    [21] Magliano P N, Whitworth-Hulse J I, Florio E L, et al. Interception loss, throughfall and stemflow by Larrea divaricata:The role of rainfall characteristics and plant morphological attributes[J]. Ecological Research, 2019,34(6):753-76412.
    [22] 李柳,李小雁,蒋志云,等.毛乌素沙地油蒿(Artemisia ordosica)灌丛穿透雨量特征及影响因素[J].中国沙漠,2014,34(4):1031-1036.
    [23] 李衍青,张铜会,赵学勇,等.科尔沁沙地小叶锦鸡儿灌丛降雨截留特征研究[J].草业学报,2010,19(5):267-272.
    [24] 杨志鹏,李小雁,孙永亮,等.毛乌素沙地沙柳灌丛降雨截留与树干茎流特征[J].水科学进展,2008,19(5):693-698.
    [25] 彭海英,李小雁,童绍玉.内蒙古典型草原小叶锦鸡儿灌丛化对水分再分配和利用的影响[J].生态学报,2014,34(9):2256-2265.
    [26] Jiang Zhiyun, Li Xiaoyan, Wei Junqi, et al. Contrasting surface soil hydrology regulated by biological and physical soil crusts for patchy grass in the high-altitude alpine steppe ecosystem[J]. Geoderma, 2018,326:201-209.
    [27] 蒋志云,李小雁,张思毅,等.基于电磁感应成像植被斑块土壤水盐效应研究[J].生态学报,2019,39(24):9188-9199.
    [28] Cerda A. The effect of patchy distribution of Stipa tenacissima L on runoff and erosion[J]. Journal of Arid Environments, 1997,36(1):37-51.
    [29] Peng Haiying, Li Xiaoyan, Li Guangyong, et al. Shrub encroachment with increasing anthropogenic disturbance in the semiarid Inner Mongolian grasslands of China[J]. Catena, 2013,109:39-48.
    [30] Ludwig J A, Wiens J A, Tongway D J. A scaling rule for landscape patches and how it applies to conserving soil resources in savannas[J]. Ecosystems, 2000,3(1):84-97.
    [31] Cammeraat L H, Imeson A C. The evolution and significance of soil-vegetation patterns following land abandonment and fire in Spain[J]. Catena, 1999,37(1):107-127.
    [32] Ludwig J, Tongway D, Hodgkinson K, et al. Landscape ecology, function and management:Principles from Australia's rangelands[J]. Journal of Applied Ecology, 1996,34(5):1323-1324.
    [33] Bestelmeyer B T, Ward J P, Havstad K M. Soil-geomorphic heterogeneity governs patchy vegetation dynamics at an arid ecotones[J]. Ecology, 2006,87(4):963-973.
    Cited by
    Comments
    Comments
    分享到微博
    Submit
Get Citation

蒋志云,张思毅,吴华武,魏俊奇,黄楚珩,李小雁.青海湖流域芨芨草斑块对地表水分再分配过程的影响[J].水土保持通报英文版,2020,40(5):8-14,47

Copy
Share
Article Metrics
  • Abstract:666
  • PDF: 1563
  • HTML: 1297
  • Cited by: 0
History
  • Received:May 20,2020
  • Revised:June 25,2020
  • Online: November 17,2020

Website Copyright © Editorial Office of Bulletin of Soil and Water Conservation

Supported by:Beijing E-Tiller Technology Development Co., Ltd.