Effects of Achnatherum Splendens Patchy on Redistribution of Surface Water Flow in Qinghai Lake Watershed

Jiang Zhiyun; Zhang Siyi; Wu Huawu; Wei Junqi; Huang Chuheng; Li Xiaoyan

doi:10.13961/j.cnki.stbctb.20200803.001

您当前的位置：

首页 >

文章列表页 >

Effects of Achnatherum Splendens Patchy on Redistribution of Surface Water Flow in Qinghai Lake Watershed

- Effects of Achnatherum Splendens Patchy on Redistribution of Surface Water Flow in Qinghai Lake Watershed
- Bulletin of Soiland Water Conservation Vol. 40, Issue 5, Pages: 8-14(2020)
- 作者机构：
  
  1. 华南师范大学地理科学学院,广东,广州,510631
  2. 广东省生态环境研究所广东省农业环境综合治理重点实验室,广东,广州,510650
  3. 华南土壤污染控制与修复国家地方联合工程研究中心,广东,广州,510650
  4. 中国科学院流域地理学重点实验室, 中国科学院南京地理与湖泊研究所,江苏,南京,210008
  5. 北京师范大学地理科学学部自然资源学院,北京,100875
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.20200803.001
  CLC： P334;Q945.17
- Published：2020
- 稿件说明：
移动端阅览
Jiang Zhiyun, Zhang Siyi, Wu Huawu, et al. Effects of Achnatherum Splendens Patchy on Redistribution of Surface Water Flow in Qinghai Lake Watershed[J]. Bulletin of Soiland Water Conservation, 2020, 40(5): 8-14.
DOI：

Jiang Zhiyun, Zhang Siyi, Wu Huawu, et al. Effects of Achnatherum Splendens Patchy on Redistribution of Surface Water Flow in Qinghai Lake Watershed[J]. Bulletin of Soiland Water Conservation, 2020, 40(5): 8-14. DOI： 10.13961/j.cnki.stbctb.20200803.001.

摘要

[目的] 研究芨芨草斑块对降雨再分配和地表径流过程的影响，为揭示植被斑块的形成与水分调控机理提供依据。[方法] 以青海湖流域芨芨草斑块为例，通过对芨芨草斑块冠层降雨再分配和地表径流进行试验观测，计算水平方向芨芨草斑块水分补偿比例。[结果] ①芨芨草斑块穿透雨占降雨量比例为70.58%，穿透雨主要受降雨量、降雨强度和降雨历时的影响，芨芨草斑块冠层对降雨再分配过程的影响和多数干旱区灌木相似；②芨芨草斑块平均径流系数为0.45%±0.33%，明显低于基质区（2.08%±1.46%），且随着降雨量增加而呈增大趋势；③芨芨草斑块水分补偿比例为1.13%±1.34%，且随着降雨量和降雨强度增加而增大，最高可达到4.94%。[结论] 在生态系统尺度，芨芨草斑块会受到来自基质区的径流补偿，这是斑块植被一种适应干旱的水分调控策略。

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.

关键词

Keywords

references

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.

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.

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.

Scheffer M, Bascompte J, Brock W A, et al. Early-warning signals for critical transitions[J]. Nature, 2009,461(7260):53-59.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Xin H. A green fervor sweeps the Qinghai-Tibetan Plateau[J]. Science, 2008,321(5889):633-635.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Views

1428

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Characteristics of rainfall redistribution of economic shrub canopies in west semiarid area of Heilongjiang Province

A Study of Effects of Plant Systems on Runoff

Runoff and Quantity of Soil Erosion Uunder Conservation Tillage System by Simulated Rainfall

Factors Affecting Runoff and Its Relationship with Rainfall Factors in Red Earth Hilly Regions in Jiangxi Province

haracteristics of Dissolvable Nitrogen and Phosphorus Losses in Runoff from a Pinus Elliottii Stand in Foshan City

Related Author

Wang Ligang

Cui Lin

Si Si

Ji Xiaohui

Zhao Ying

Fang Yufeng

Zhang Yuzhu

LIN Tian

Related Institution

CAS Key Laboratory of Forest;Ecology and Silviculture， Institute of Applied Ecology， Chinese Academy of Sciences ， Shengyang

Heilongjiang Zhalong Wetland Ecosystem;Observation and Research Station

National Permanent Scientific Research Base on Shelter forest in Nenjiang Plain， Heilongjiang Songnen;Plain Farmland Shelterbelt Ecosystem Observation and Research Station， Qiqihar Branch of Heilongjiang;Academy of Forestry

The Institute of Soil Science, Chinese Academy of Sciences

General Station of Forestry Sci-Tech Extension of Gansu Province

⁰