全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

青藏高原多年冻土区热融湖塘对土壤物理特性及入渗过程的影响

, PP. 2285-2293

Keywords: 青藏高原,热融湖塘,土壤入渗,模拟

Full-Text   Cite this paper   Add to My Lib

Abstract:

?全球变暖背景下高寒土壤水文过程的变化是流域水文学及生态系统稳定性研究的关键问题之一,以多年冻土区典型发育的热融湖塘为研究对象,基于土壤物理特性、入渗过程及土壤水分等的观测,并进行模型模拟.结果表明:热融湖塘改变了土壤的入渗过程,随着其影响程度的加剧,初始入渗速率降低,且在中度影响迹地降低幅度最大;稳定入渗速率与累积入渗量在表层逐渐增加,10与20cm深度处均为先减小后增加,与土壤质地显著相关,且累积入渗量受制于稳定入渗速率变化;通过对比分析,Hoton模型更适用于热融湖塘影响迹地高寒草甸土壤水分入渗过程的研究.总之,热融湖塘的形成降低了高寒草甸土壤的持水能力,使其导水性增强,导致热融湖塘分布区域的产流能力降低.

References

[1]  马巍, 穆彦虎, 李国玉, 等. 2013. 多年冻土区铁路路基热状况对工程扰动及气候变化的响应. 中国科学: 地球科学, 43: 478-489
[2]  南卓铜, 李述训, 程国栋. 2004. 未来50与100 a青藏高原多年冻土变化情景预测.中国科学D辑: 地球科学, 34: 528-534
[3]  潘保田, 李吉均. 1996. 青藏高原: 全球气候变化的驱动机与放大器: Ⅲ. 青藏高原隆起对气候变化的影响. 兰州大学学报(自然科学版), 32: 108-115
[4]  任贾文. 2013. 全球冰冻圈现状和未来变化的最新评估: IPCC WGI AR5 SPM 发布. 冰川冻土, 35: 1065-1067
[5]  席海洋, 冯起, 陈玉菲, 等. 2008. 额济纳绿洲土壤入渗特征与土壤状况的关系研究. 冰川冻土, 30: 976-982
[6]  Guo D L, Wang H J. 2012. A projection of permafrost degradation on the Tibetan plateau during 21st century. J Geophys Res, 117: D05106, doi: 10.1029/2011JD016545
[7]  Grosse G, Romanovsky V, Walter A K, et al. 2006. Distribution of Thermokarst Lakes and Ponds at Three Yedoma Sites in Siberia. In: 9th International Conference on Permofrost. 551-556
[8]  Green W H, Ampt G A. 1911. Studies on soil physics, flow of air and water through soil. J Agr Sci, 76: 1-24
[9]  He Y, Wu Y F, Liu Q F. 2012. Vulnerability assessment of areas affected by Chinese cryospheric changes in future climate change scenarios. Chin Sci Bull, 57: 4784-4790
[10]  Hinzman L D, Goering D J, Li S, et al. 1997. Numeric simulation of thermokarst formation during disturbance. disturbance and recovery in Arctic Lands: An ecological perspective. Dordrecht Netherlands: Kluwer Academic Publishers. 191-211
[11]  Horton R E. 1940. An approach toward a physical interpretation of infiltration-capacity. Soil Sci Am Proc, 5: 399-417
[12]  Jones B M, Grosse G, Arp C D, et al. 2011. Modern thermokarst lake dynamics in the continuous permafrost zone, northern Seward Peninsula, Alaska. J Geophys Res, 116: G00M03, doi: 10.1029/2011JG0016666
[13]  Johanna M K, Steve W L, Georgia D. 2012. Thermokarst lake, hydrological flow and water balance indicators of permafrost chage in Western Siberia. J Hydrol. 464-465: 459-466
[14]  Kostiakov A N. 1932. On the dynamics of the coeffient of water percolation in soil and on the necessity of studing it froma dynamic point of view for purposes of amelioration. Moscow: Translation of the Conference of the International Society for Soil Sciences, Part A. 17-21
[15]  Kokelj S V, Jorgenson M T. 2013. Advance in thermokarst research. Permafrost Perigl Process, 24: 108-119
[16]  Lin Z, Niu F, Xu Z, et al. 2010. Thermal Regime of a Thermokarst Lake and its Influence on Permafrost, Beiluhe Basin, Qinghai-Tibet Plateau. Permafrost Perigl Process, 21: 315-324
[17]  Niu F, Lin Z, Liu H, et al. 2011. Characteristics of thermokarst lakes and their influence on permafrost in Qinghai-Tibet Plateau. Geomorphology, 132: 222-233
[18]  Sergey A, Zimov, Edward A G, et al. 2006. Permafrost and the global carbon budget. Science, 312: 1612-1613
[19]  Wang G X, Wang Y B, Li Y S, et al. 2007. Influences of alpine ecosystem responses to climate change on soil properties on Qinghai-Tibet Plateau, China. Catena, 70: 506-514
[20]  Walter K M, Edwards M E, Grosse G, et al. 2007. Thermokarst lakes as a source of atmospheric CH4 during the last deglaciation. Science, 318: 633-636
[21]  Walter K M, Zimov, Chanton J P, et al. 2006. Methane bubbling from Siberian thaw lakes as a positive feedback to climate warming. Nature, 443: 71-75
[22]  蒋定生, 黄国俊. 1986. 黄土高原土壤入渗速率的研究. 土壤学报, 23: 299-304
[23]  李卓, 刘永红, 杨勤. 2011. 土壤水分入渗影响机制研究综述. 灌溉排水学报, 30: 124-130
[24]  林占举, 牛富俊, 徐建, 等. 2009. 路基施工对青藏高原多年冻土的影响. 冰川冻土, 31: 1127-1136
[25]  沈冰, 黄红虎. 2008. 水文学原理. 北京: 中国水利水电出版社
[26]  王根绪, 李元首, 吴青柏, 等. 2006. 青藏高原冻土区冻土与植被的关系及其对高寒生态系统的影响. 中国科学D辑: 地球科学, 36: 743-754
[27]  王一博, 吴青柏, 牛富俊. 2011. 长江源北麓河流域多年冻土区热融湖塘形成对高寒草甸土壤环境的影响. 冰川冻土, 33: 659-667
[28]  吴青柏, 牛富俊. 2013. 青藏高原多年冻土变化与工程稳定性. 科学通报, 58: 115-130

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133