[1]李杨,李建刚,刘艳,等.北疆地区积雪与冻土变化的特征分析[J].水土保持研究,2015,22(05):342-348.
　LI Yang,LI Jiangang,LIU Yan,et al.Preliminarily Analysis on the Characteristics of Depth Variation of Snow Accumulation and Frozen Soil in Northern Xinjiang[J].Research of Soil and Water Conservation,2015,22(05):342-348.
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北疆地区积雪与冻土变化的特征分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年05期 页码: 342-348 栏目: 出版日期: 2015-10-28
Title:
Preliminarily Analysis on the Characteristics of Depth Variation of Snow Accumulation and Frozen Soil in Northern Xinjiang
作者:
李杨1, 李建刚2, 刘艳1, 张璞3
1. 中国气象局 乌鲁木齐沙漠气象研究所, 乌鲁木齐 830002;
2. 新疆气象台, 乌鲁木齐 830002;
3. 乌鲁木齐气象卫星地面站, 乌鲁木齐 830011
Author(s):
LI Yang1, LI Jiangang2, LIU Yan1, ZHANG Pu3
1. Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China;
2. Xinjiang Meteorological Observatory, Urumqi 830002, China;
3. Urumqi Meteorological Satellite Ground Station, Urumqi 830011, China
关键词:
北疆; 积雪; 冻土; Mann-Kendall检验法
Keywords:
northern Xinjiang; snow accumulation; frozen soil; Mann-Kendall test
分类号:
P468.0+25;P642.14
摘要:
利用1960—2007年北疆6个国家基本气象站积雪及冻土资料，分析了北疆地区积雪和冻土深度的气候分布特征，并利用统计学方法总结了积雪对冻土变化的影响。结果表明：（1）最大冻土深度受海拔高度的影响较大，并与其成正比。最大冻土深度值出现年代从平原向山区滞后；从20世纪80年代后最大冻土深度出现减小的趋势，且平原较山区更加明显；3个不同类型冻土区冬季最大冻土深度和平均冻土深度的年际变化基本上随时间逐渐减小；（2）Ⅰ区的最大积雪深度大于Ⅱ区和Ⅲ区，各站冬季最大积雪深度和平均积雪深度的年际变化基本上都呈现单峰单谷型；（3）Ⅰ区最大积雪深度和最大冻土深度的对应关系呈现双峰型，Ⅱ区为单峰型，Ⅲ区则为对数型。积雪深度较浅时，冻土深度增加较明显，随着积雪深度的增加，冻土深度变化较小，当积雪深度超过一定限值后，冻土深度还有下降的趋势；（4） M-K检验结果为各站最大冻土深度与积雪的变化趋势基本相反且突变点基本一致，呈现负相关。
Abstract:
The climatic distribution characteristics of snow accumulation and frozen soil depth in the area of northern Xinjiang was analyzed based on daily snow accumulation and frozen soil data obtained from six national basic meteorological observing stations during the period from 1960 to 2007, and the effect of snow accumulation depth on frozen soil variation was discussed by use of statistic method. The result showed that: (1) the maximum frozen soil depth (MFD) was greatly affected by the altitude, and was proportional to the altitude, the appearing age of MFD was lagged from plain to mountain area, MFD appeared the trend of decreasing since 1980’s and this phenomenon was obvious in plain compared with mountain area. The inter-annual variation of MFD and average frozen soil depth at three different frozen soil type regions in winter kept descending basically; (2) the maximum snow accumulation depth (MSD) at region Ⅰ was greater than region Ⅱ and region Ⅲ, the inter-annual variation of MSD and average snow accumulation depth appeared single-valley pattern; (3) the mapping between MSD and MFD was displayed by bimodal pattern at region Ⅰ, unimodal pattern at region Ⅱ, logarithmic pattern at region Ⅲ, the depth of frozen soil increased obviously when snow accumulation depth was shallow, however, frozen soil depth changed less with the increase of snow accumulation depth,and dropped after snow accumulation depth exceeded a certain threshold value;(4) MFD and MSD were tested by Mann-Kendall abrupt change detection method, and the result showed that varying trend of these two parameters was opposite, and they basically had the negative correlation.

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备注/Memo

收稿日期:2014-12-24;改回日期:2015-03-02。
基金项目:中央级公益性科研院所基本科研业务费专项资金项目（IDM201206）；国家自然科学基金（41271098）；新疆维吾尔自治区科技支疆项目（2013911104）
作者简介:李杨(1976-),女,新疆石河子人,学士,副研究员,主要从事积雪遥感研究。E-mail:liyang@idm.cn
通讯作者:李建刚(1978-),男,新疆石河子人,硕士,工程师,主要从事天气预测和灾害性天气研究。E-mail:shzljg_qxj@163.com

更新日期/Last Update: 1900-01-01