Modeling the Distribution of Permafrost along a Transportation Corridor from Cetar to Muri in Qinghai Province
Received date: 2009-07-01
Revised date: 2010-03-01
Online published: 2010-09-25
Taking the lOkm-wide buffer areas along the traffic lines, the Cetar-Muri Railway and the ReshuiJiangoang Road, in Qinghai province as the research areas, this paper studies the distribution patterns of permafrost in the buffer area. Boreholes, which were drilled in the fields and used to determine the existence of perfamost at the drilling points, were the data basis. Based on the 189 boreholes and DEM, effects of longitude, latitude, elevation, solar radiation, aspect，slope and curvature on the distribution of permafrost were evaluated quantitatively through the(orrelation analysis. The results indicated that the macro-scale factors of longitude, latitude, elevation and solar radiation were the major affecting factors. As the spatial scale decreused, slope was another important factor affeoting the distribution of perma frost Therefore, a logistio model, baking longitude, elevation and slope as independent variables, and the occurrenoe probability of permafrost as a dependant variable, was developed to simulate the distribution probability of permafrost in the buffer areas. The modeling results showed that the possible permafrost with probability values ranging from 0.75 to 1 was the major type, accpunting for 65% of the buffer area. The second largest distribution area was the seasonally frozen ground with probability values smaller than 0.5, accpunting for 29% of the buffer area. The third was the possible permafrost type with probability values of 0.5-0.75, accpunting for only 6% of the buffer area.
LI Jing, SHENG Yu, CHEN Ji, WU Jichun . Modeling the Distribution of Permafrost along a Transportation Corridor from Cetar to Muri in Qinghai Province[J]. PROGRESS IN GEOGRAPHY, 2010 , 29(9) : 1100 -1106 . DOI: 10.11820/dlkxjz.2010.09.012
[1] 刘庆仁，孙振昆，崔永生，等.大兴安岭林区多年冻土与 植被分布规律研究.冰川冻土，1993, 15(2): 246-251.
[2] Brown R G E, Pewe T L. Distribution of permafrost in North America and its relationship to the environment: A review, 1963～1973 Permafrost. 2nd International Confer ence on permafrost. Washington DC, National Academy of Sciences, 1973, 2: 71-100.
[3] 寇有冠，曾群柱，谢维荣，等.青藏高原和邻近地区的辐 射及其与高原冻土的关系.冰川冻土，1981, 3(4): 25-32.
[4] 王根绪，李元首，吴青柏，等.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， 2006, 36(8): 743-754.
[5] 程国栋.局地因素对多年冻土分布的影响及其对青藏 铁路设计的启示.中国科学:D辑，2003, 33(6): 602-607.
[6] 王绍令，丁永建，赵林，等.青藏高原局地因素对近地表 层地温的影响.高原气象，2002, 2(1): 85-89.
[7] Gruber S, Hoelzle M. Statistical modelling of mountain permafrost distribution: Local calibration and incorporation of remotely sensed data. Permafrost and Periglacial Pro-cesses, 2001, 12(1): 69-77.
[8] Rune S, Hoelzle M, Johansen K V, et al. Permafrost map-ping and prospecting in southern Norway. Norwegian Jour-nal of Geography,1996, 50(1): 41-54.
[9] Etzehniiller B, Hoelzle M, Heggem E S F, et al. Mapping and modelling the occurrence and distribution of mountain permafrost. Norwegian Journal of Geography, 2001, 55(1): 186-194.
[10] Stocker-Mittaz C, Hoelzle M, Haeberli W.Modelling alpine permafrost distribution based on energy-balance data: A first step. Permafrost and Periglacial Processes, 2002, 13(4): 271-282.
[11] 吴青柏，李新，李文君.青藏公路沿线冻土区域分布计 算机模拟与制图.冰川冻土，2000, 22(4): 323-326.
[12] 南卓铜，李述训，刘永智.基于年平均地温的青藏高原 冻土分布制图及应用.冰川冻土，2002, 24(2): 142-148.
[13] 李述训，吴通华.青藏高原地气温度之间的关系.冰川 冻土，2005, 27(5): 627-632.
[14] 热水冻土队.青海热水柴达尔地区的冻土特征.中国科 学院兰州冰川冻土沙漠研究所集刊(第1号).北京:科 学出版社，1976.
[15] 郭鹏飞.祁连山地区的多年冻土刀第二届全国冻土学术 会议论文选集.兰州:日一肃人民出版社，1983: 30-3s.
[16] 曹继业.祁连山中、东段多年冻结区地下水天然资源评 价.冰川冻土，198s, 7(1): 65-76.
[17] 吴吉春，盛煜，于晖，等.祁连山中东部的冻土特征((I):多 年冻土分布.冰川冻土，2007, 29(3): 418-525.
[18] 周幼督，郭东信，邱国庆，等.中国冻土.北京:科学出版社，2000: 309-326.
[19] Antoni G L, Ednie M. Probability mapping of mountain permafrost using the BTS method, Wolf Creek, Yukon Territory, Canada. Permafrost and Periglacial Processes, 2004, 1s(1): 67-80.
[20] Brenning A, Gruber S, Hoelzle M. Sampling and statistical analyses of BTS measurements. Permafrost and Periglacial Processes, 200s, 16(4): 383-394.
[21] Etzehniiller B, Heggem E S F, Sharkhuu N, et al. Moun-taro permafrost distribution modelling using a multi-crite-ria approach in the Hovsgol Area, Northern Mongolia. Permafrost and Periglacial Processes, 2006, 17(2):91-104.
[22] 张文彤，阎洁.SPSS统计分析高级教程.北京:高等教育出版社, 2004: 91-100.
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