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中国沙漠  2017, Vol. 37 Issue (1): 73-80    DOI: 10.7522/j.issn.1000-694X.2016.00137
生物与土壤     
干旱区生态系统跃变:以输沙势为外部驱动力
陈宁1,2, 王新平1
1. 中国科学院寒区旱区环境与工程研究所 沙坡头沙漠研究试验站, 甘肃 兰州 730000;
2. 中国科学院大学, 北京 100049
Regime Shifts in Dryland Ecosystems: drift potential as external driver
Chen Ning1,2, Wang Xinping1
1. Shapotou Desert Research and Experiment Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China
 全文: PDF(1796 KB)  
摘要: 生态系统靠近跃变点时可能发生跃变,骤然从一种稳定状态跃变到另外一种稳定态。然而以往关于干旱区的系统跃变的研究主要集中于水文过程,对其他过程(如风积过程)关注不够,并且很少考虑外部驱动力与系统状态之间的交互作用。我们以输沙势(风积过程)为系统跃变的外部驱动力,利用空间隐式模型,研究干旱区生态系统的跃变动态,并考虑输沙势与系统状态之间的交互作用对系统跃变动态的影响。结果表明:当输沙势较低(<93 VU)或较高(>230 VU)时植被态和裸地态分别是唯一的稳定态,而当输沙势为93~230 VU时,植被态和裸地态都可稳定存在。考虑交互作用使系统退化(恢复)时的跃变点从无交互作用的230 VU(93 VU)推移到了高强度交互作用的337 VU(213 VU),在研究干旱区生态系统的系统跃变时,可以以输沙势为外部驱动力,并考虑输沙势与系统状态之间交互作用。
关键词: 系统跃变荒漠化输沙势外部驱动力干旱区生态系统    
Abstract: Some ecosystems could shift from one stable state into another alternative stable state as approaching fold-bifurcation point (or tipping point). In ecosystem level, however, previous studies in dryland ecosystems mainly focused on hydrologic processes, and largely ignored other processes, such as wind erosion. Furthermore, previous studies generally didn't take the interaction between external driver and ecosystem state into consideration when studying regime shifts. Using a mean-field model, this paper investigated the dynamics of regime shifts in drylands with drift potential as external driver. The results suggested that the vegetation state and the bare state were the only stable states when drift potential was smaller than 93 VU and 230 VU, respectively. And drift potential was between 93 VU and 230 VU, both vegetation state and bare state could stably exist. Moreover, considering the interaction between external driver and ecosystem state would greatly extend the region of stable equilibrium to higher drift potential, i.e., tipping points in degradation moved from 230 VU (93 VU) under non-interactive situation to 337 VU (213 VU) under strong interactive situation. This study suggests that one can the dynamics of dryland ecosystems with drift potential as driver and should consider the interaction between drift potential and system state. This work puts forward a novel idea and view for researches in dryland ecosystems, and provides theoretical supports for maintaining ecosystem functions and restoring degraded ecosystems in drylands.
Key words: regime shifts    desertification    drift potential    external driver    dryland    ecosystems
收稿日期: 2016-05-19 出版日期: 2017-01-20
ZTFLH:  Q146  
基金资助: 国家自然科学基金项目(41530750,41371101)
通讯作者: 王新平(E-mail:xpwang@lzb.ac.cn)     E-mail: xpwang@lzb.ac.cn
作者简介: 陈宁(1988-),男,河南商丘人,博士研究生,主要研究方向为干旱区生态学和系统生态学。E-mail:chenning.cn2015@gmail.com
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引用本文:

陈宁, 王新平. 干旱区生态系统跃变:以输沙势为外部驱动力[J]. 中国沙漠, 2017, 37(1): 73-80.

Chen Ning, Wang Xinping. Regime Shifts in Dryland Ecosystems: drift potential as external driver. JOURNAL OF DESERT RESEARCH, 2017, 37(1): 73-80.

链接本文:

http://www.desert.ac.cn/CN/10.7522/j.issn.1000-694X.2016.00137        http://www.desert.ac.cn/CN/Y2017/V37/I1/73

[1] Reynolds J F,Smith D M S,Lambin E F,et al.Global desertification:building a science for dryland development[J].Science,2007,316(5826):847-851.
[2] Assessment M E.Ecosystems and Human Well-being[M].Washington DC,USA:Island Press,2005.
[3] Scheffer M.Critical Transitions in Nature and Society[M].Princeton,USA:Princeton University Press,2009.
[4] Scheffer M,Carpenter S,Foley J A,et al.Catastrophic shifts in ecosystems[J].Nature,2001,413(6856):591-596.
[5] Bestelmeyer B T,Ellison A M,Fraser W R,et al.Analysis of abrupt transitions in ecological systems[J].Thermochimica Acta,2011,403(1):137-151.
[6] D'odorico P,Okin G S,Bestelmeyer B T.A synthetic review of feedbacks and drivers of shrub encroachment in arid grasslands[J].Ecohydrology,2012,5(5):520-530.
[7] Anad n J D,Sala O E,Maestre F T.Climate change will increase savannas at the expense of forests and treeless vegetation in tropical and subtropical Americas[J].Journal of Ecology,2014,102(6):1363-1373.
[8] Suding K N,Hobbs R J.Threshold models in restoration and conservation:a developing framework[J].Trends in Ecology & Evolution,2009,24(5):271-279.
[9] Belnap J,Munson S M,Field J P.Aeolian and fluvial processes in dryland regions:the need for integrated studies[J].Ecohydrology,2011,4(5):615-622.
[10] Ravi S,D'odorico P,Breshears D D,et al.Aeolian processes and the biosphere[J].Reviews of Geophysics,2011,49(3):114-123.
[11] Field J P,Breshears D D,Whicker J J.Toward a more holistic perspective of soil erosion:why aeolian research needs to explicitly consider fluvial processes and interactions[J].Aeolian Research,2009,1(1/2):9-17.
[12] Tsoar H.Sand dunes mobility and stability in relation to climate[J].Physica A:Statistical Mechanics and Its Applications,2005,357(1):50-56.
[13] Dupont S,Bergametti G,Simoens S.Modeling aeolian erosion in presence of vegetation[J].Journal of Geophysical Research-Earth Surface,2014,119(2):168-187.
[14] Ravi S,D'odorico P,Over T M,et al.On the effect of air humidity on soil susceptibility to wind erosion:the case of air-dry soils[J].Geophysical Research Letters,2004,31(9):LO9501.
[15] Li J R,Okin G S,Tatarko J,et al.Consistency of wind erosion assessments across land use and land cover types:a critical analysis[J].Aeolian Research,2014,15:253-260.
[16] Alvarez L J,Epstein H E,Li J,et al.Aeolian process effects on vegetation communities in an arid grassland ecosystem[J].Ecology and Evolution,2012,2(4):809-821.
[17] Ravi S,D'odorico P,Okin G S.Hydrologic and aeolian controls on vegetation patterns in arid landscapes[J].Geophysical Research Letters,2007,34(24):L24S23.
[18] 苏延桂,李新荣,贾荣亮,等.沙埋对六种沙生植物种子萌发和幼苗生长的影响[J].中国沙漠,2007,27(6):968-971.
[19] Bhattachan A,D'odorico P,Dintwe K,et al.Resilience and recovery potential of duneland vegetation in the southern Kalahari[J].Ecosphere,2014,5(1):1-14.
[20] Yizhaq H,Ashkenazy Y,Tsoar H.Why do active and stabilized dunes coexist under the same climatic conditions?[J].Physical Review Letters,2007,98(18):188001.
[21] Carpenter S R,Ludwig D,Brock W A.Management of eutrophication for lakes subject to potentially irreversible change[J].Ecological Applications,1999,9(3):751-771.
[22] Kinast S,Meron E,Yizhaq H,et al.Biogenic crust dynamics on sand dunes[J].Physical Review E,2013,87(2):020701.
[23] Scheffer M,Hosper S H,Meijer M L,et al.Alternative equilibria in shallow lakes[J].Trends in Ecology & Evolution,1993,8(8):275-279.
[24] Zeng N,Neelin J D,Lau K-M,et al.Enhancement of interdecadal climate variability in the Sahel by vegetation interaction[J].Science,1999,286(5444):1537-1540.
[25] Webb T J,Woodward F I,Hannah L,et al.Forest cover-rainfall relationships in a biodiversity hotspot:the atlantic forest of Brazil[J].Ecological Applications,2005,15(6):1968-1983.
[26] Van Nes E H,Hirota M,Holmgren M,et al.Tipping points in tropical tree cover:linking theory to data[J].Global Change Biology,2014,20(3):1016-1021.
[27] Tuttle S,Salvucci G.Empirical evidence of contrasting soil moisture precipitation feedbacks across the United States[J].Science,2016,352(6287):825-828.
[28] 张克存,俎瑞平,屈建军,等.腾格里沙漠东南缘输沙势与最大可能输沙量之比较[J].中国沙漠,2008,28(4):605-610.
[29] 兰州沙漠研究所沙坡头沙漠科学研究站.包兰铁路沙坡头段固沙原理与措施[M].银川:宁夏人民出版社,1991.
[30] Miller M E,Belote R T,Bowker M A,et al.Alternative states of a semiarid grassland ecosystem:implications for ecosystem services[J].Ecosphere,2011,2(5):18.
[31] Dhooge A,Govaerts W,Kuznetsov Y A.Matcont:a Matlab package for numerical bifurcation analysis of ODEs[J].ACM Transactions on Mathematical Software (TOMS),2003,29(2):141-164.
[32] Wiggs G F S,Thomas D S G,Bullard J E.Dune mobility and vegetation cover in the southwest Kalahari desert[J].Earth Surface Processes and Landforms,1995,20(6):515-529.
[33] Li J,Okin G S,Alvarez L,et al.Quantitative effects of vegetation cover on wind erosion and soil nutrient loss in a desert grassland of southern New Mexico,USA[J].Biogeochemistry,2007,85(3):317-332.
[34] Mao D L,Lei J Q,Zeng F J,et al.Characteristics of wind erosion and deposition in oasis-desert ecotone in southern margin of Tarim Basin,China[J].Chinese Geographical Science,2014,24(6):658-673.
[35] D'odorico P,Caylor K,Okin G S,et al.On soil moisture vegetation feedbacks and their possible effects on the dynamics of dryland ecosystems[J].Journal of Geophysical Research:Biogeosciences,2007,112(G4):10.
[36] Rietkerk M,Boerlijst M C,Van Langevelde F,et al.Self-organization of vegetation in arid ecosystems[J].The American Naturalist,2002,160(4):524-530.
[37] Gilad E,Von Hardenberg J,Provenzale A,et al.Ecosystem engineers:from pattern formation to habitat creation[J].Physical Review Letters,2004,93(9):98105.
[38] 王新平,康尔泗,张景光,等.草原化荒漠带人工固沙植丛区土壤水分动态[J].水科学进展,2004(2):216-222.
[39] Li X,Zhang Z,Tan H,et al.Ecological restoration and recovery in the wind-blown sand hazard areas of northern China:relationship between soil water and carrying capacity for vegetation in the Tengger Desert[J].Science China Life Sciences,2014,57(5):539-548.
[40] Viglizzo E F,Nosetto M D,Jobbágy E G,et al.The ecohydrology of ecosystem transitions:a meta-analysis[J].Ecohydrology,2015,8(5):911-921.
[41] Mueller E N,Wainwright J,Parsons A J,et al.Patterns of Land Degradation in Drylands[M].Berlin,Germany:Springer,2014.
[42] Kenneth Pye,Haim Tsoar.Aeolian Sand and Sand Dunes[M].London,UK:Unwin Hyman,1990.
[43] Breshears D D,Whicker J J,Zou C B,et al.A conceptual framework for dryland aeolian sediment transport along the grassland-forest continuum:effects of woody plant canopy cover and disturbance[J].Geomorphology,2009,105(1/2):28-38.
[44] Tsoar H,Levin N,Porat N,et al.The effect of climate change on the mobility and stability of coastal sand dunes in Cear State (NE Brazil)[J].Quaternary Research,2009,71(2):217-226.
[45] 王新平,张景光,李新荣,等.沙坡头地区多年降水分布特征、趋势及其变率[J].中国沙漠,2001,21(3):260-264.
[46] Belnap J,Büdel B,Lange O L.Biological Soil Crusts:Characteristics and Distribution[M].Berlin,Germany:Springer,2003.
[47] 李新荣.荒漠生物土壤结皮生态与水文学研究[M].北京:高等教育出版社,2012.
[48] Amir R,Kinast S,Tsoar H,et al.The effect of wind and precipitation on vegetation and biogenic crust covers in the Sde-Hallamish sand dunes[J].Journal of Geophysical Research:Earth Surface,2014(119):437-450.
[49] Bel G,Ashkenazy Y.The effects of psammophilous plants on sand dune dynamics[J].Journal of Geophysical Research:Earth Surface,2014,119(7):1636-1650.
[50] Kidron G J,Zohar M.Wind speed determines the transition from biocrust-stabilized to active dunes[J].Aeolian Research,2014,15:261-267.
[51] Scheffer M,Carpenter S R.Catastrophic regime shifts in ecosystems:linking theory to observation[J].Trends in Ecology & Evolution,2003,18(12):648-656.
[52] Rietkerk M,Dekker S C,De Ruiter P C,et al.Self-Organized patchiness and catastrophic shifts in ecosystems[J].Science,2004,305(5692):1926-1929.
[53] Janssen R H H,Meinders M B J,Van Nes E H,et al.Microscale vegetation-soil feedback boosts hysteresis in a regional vegetation-climate system[J].Global Change Biology,2008,14(5):1104-1112.
[54] James J J,Sheley R L,Erickson T,et al.A systems approach to restoring degraded drylan
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