[1]郭晓军,崔鹏,朱兴华,等.泥石流多发区蒋家沟流域的下渗与产流特点[J].山地学报,2012,(05):585.
　GUO Xiaojun,CUI Peng,ZHU Xinghua.Infiltration and Runoff Yield Characteristics in Jiangjia Ravine[J].Mountain Research,2012,(05):585.
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泥石流多发区蒋家沟流域的下渗与产流特点()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2012年05期
页码:
585
栏目:
山地学报
出版日期:
2012-01-01

文章信息/Info

Title:
Infiltration and Runoff Yield Characteristics in Jiangjia Ravine
作者:
郭晓军;崔鹏;朱兴华;
1. 中国科学院山地灾害与地表过程重点实验室/中国科学院水利部成都山地灾害与环境研究所，四川 成都610041；
2. 中国科学院 研究生院，北京100049
Author(s):
GUO Xiaojun;  CUI Peng; ZHU Xinghua
1. Key Laboratory of Mountain Hazards and Land Surface Progress /Institute of Mountain Hazards and Environment, CAS, Chengdu, 610041, China;
2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
关键词:
渗透试验; 壤中流; 同位素; 宽级配土; 蒋家沟
Keywords:
infiltration experiment;  interflow;  isotope;  macro porosity soil;  Jiangjia Ravine.
分类号:
P642.23,TV121
文献标志码:
A
摘要:
在云南东川蒋家沟泥石流源区多个典型点,进行野外下渗试验得出蒋家沟流域宽级配土的下渗特征。试验发现:1.下渗曲线皆较好满足霍顿下渗公式;2.下渗率比较大,主要土壤红黄壤的各种土地利用类型的稳定下渗率都在0.08 mm/s以上;3.不同土壤类型的稳定下渗率按大小排序依次为:砾石土>红黄壤>燥红土,红黄壤的各种土地利用类型的稳定下渗率按大小排序依次为:耕地>林地>灌木丛>裸地(滑坡后壁)>草地。蒋家沟流域宽级配土决定了降雨时壤中流产流占有很大比例,在径流场进行人工降雨,采集前期土壤水、壤中流和降雨样品,通过测试其中的稳定同位素浓度,利用同位素分割径流的原理,发现前期土壤水在壤中流产流中起着不可忽略的...
Abstract:
Infiltration characteristics were obtained by outdoors experiments on various typical points in debris flow source region in Jiangjia Valley. Some basic characteristics were presented, including 1) The infiltration capacity curve can be preferably fitted by Horton formula. 2) The infiltration intensity in this area is relatively hard. Saturated stable infiltration rates in all kinds of land use types in Red-Yellow soil which is the main soil type in this area are bigger than 0.08 mm/s. 3) To the three soil types, infiltration coefficient form great to small: gravelly soil → Red-Yellow soil → Dry Red soil; to different land use types in Red-Yellow soil, the sequence is: plowland → woodland → shrubbery →bare land（landslide back wall）→ grassland. The interflow in this area plays an important role in the runoff because of the big infiltration capacity. An isotope separating interflow runoff during the artificial rainfall experiment was carried out in one plot. The samples of antecedent soil moisture, rainfall and interflow were collected, measured and analyzed. During the rainfall, infiltration increased the soil water content which made pressure to push the antecedent soil moisture migrate downward. So, it was possible that the antecedent soil moisture peak at the wetting front during the infiltration. Therefore, in the early stage of the runoff, the antecedent accounted for a very large proportion (86.46%). As the time last, rainfall water gradually took the place of the antecedent soil moisture to be main part of water in the soil, meanwhile, the proportion of rainfall water in the underground water was also gradually increasing (85.63% in the end of the experiment). It was deduced that during a short duration rainstorm, overinfiltrating runoff dominated and slope debris flow is easily to occur; during a longtime drizzle, storedfull runoff dominated the antecedent soil water plays an nonnegligible role meanwhile, slump debris flow and landslide debris flow are easier to occur instead. This paper contributes the runoff producing and debris flow starting mechanism in this area.

相似文献/References:

[1]曹建生,刘昌明,张万军.太行山片麻岩区坡地渗流集蓄技术[J].山地学报,2005,(05):621.

备注/Memo

备注/Memo:
收稿日期(Received date)：2011-08-11；改回日期(Accepted) : 2012-02-20。
基金项目（Foundation item）：国家重点基础研究（973）项目(2008CB425802)和国家自然科学
基金项目(06K1100100).\[The national key basic research(973)and the atural scierce foundation of China(06K1100100).\]
作者简介（Biography）：郭晓军（1985-），男，山西省运城市人，硕士，主要研究方向为山地水文学。\[Guo Xiaojun(1985-),male,born is Shanxi Province.master mainly engaged in hydrology.\]E-mail:sblong2003@yahoo.com.cn。
更新日期/Last Update: 1900-01-01