[1]张家明,徐则民,裴银鸽,等.植被发育斜坡非饱和带大孔隙[J].山地学报,2012,(04):439.
　ZHANG Jiaming,XU Zemin,PEI Yinge.Macropores in Vadose Zone of Well Vegetated Slopes[J].Mountain Research,2012,(04):439.
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植被发育斜坡非饱和带大孔隙()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2012年04期
页码:
439
栏目:
山地学报
出版日期:
2012-01-01

文章信息/Info

Title:
Macropores in Vadose Zone of Well Vegetated Slopes
作者:
张家明;徐则民;裴银鸽;
昆明理工大学建筑工程学院土木工程系，云南 昆明 650500
Author(s):
ZHANG Jiaming; XU Zemin; PEI Yinge
Department of Civil Engineering，Kunming University of Science and Technology，Kunming 650500，China
关键词:
斜坡非饱和带; 大孔隙; 植被; 定义; 三维网络结构; 时效稳定
Keywords:
vadose zones of slopes;  macropores;  vegetation;  definition;  spatial network structure;  temporal stability
分类号:
P642
文献标志码:
A
摘要:
在气候温湿的滑坡灾害易发区,根系通道、动物通道、干裂缝、管道及团聚体间的结构性孔隙等大孔隙普遍存在于斜坡非饱和带中。采用微观观察、化学分析和现场试验方法并结合相关学科的研究成果,分析大孔隙界定、大孔隙类型和主控因素、大孔隙三维空间结构及大孔隙时效稳定。不同测量方法的差异和大孔隙密度时空变异性是目前大孔隙定义缺乏统一性的原因。大孔隙尺寸不能作为唯一标准界定大孔隙,必须考虑其三维几何形态。多因素控制大孔隙的成因和类型,其中根系通道、裂缝和结构性孔隙对优先流有显著贡献。需从三维几何学和拓扑学方面进一步研究大孔隙三维结构。枯枝落叶层是大孔隙抵御环境因素扰动的重要屏障,但大孔隙域与周围基质域水量交换对大...
Abstract:
In warm and humid landslide prone area，root channels，faunal tunnels，shrinkage cracks，pipes and inter aggregate porosity are common in vadose zones of hillslopes. By using microscopic observation，chemical analysis and field experiment method，combining the existing research achievements in relative fields，the definitions of macropores，the types of macropores and controlling factors，the three dimensional spatial structure of macropores and the temporal stability of macropores in well vegetated slope were analyzed. The differences between different measurement methods and the temporal and spatial variability of macropores density are causes of no consensus for the definition of macropores. Macropores size alone is not a sufficient criterion for the definition of a macropore，and then three dimensional geometry morphology of macropores must be take into consideration. The formation and the type of macropores are controlled by several factors. Root channels，shrinkage cracks and inter aggregate porosity makes a significant contribution to preferential flow. The spatial structure of macropores needs to be further investigated from two aspects of three dimensional geometry and topology. Litters protect the soil beneath from rainfall impact and filter out the fine particles that may clog macropores，but water transfer between macropores domain and the surrounding soil matrix domain have negative effects. An indepth research of above questions is important for the improvement and development of preferential flow model of well vegetated slopes.

相似文献/References:

[1]张家明,徐则民,李峰,等.植被发育斜坡土体大孔隙分布特征的染色示踪法研究[J].山地学报,2015,(01):1.
　ZHANG Jiaming,XU Zemin,LI Feng.Heterogeneous Characteristics of Macropores in Soil of Well Vegetated Slopes by Dye Tracing Method[J].Mountain Research,2015,(04):1.

备注/Memo

备注/Memo:
收稿日期(Received date)：2012-03-21；改回日期(Accepted) : 2012-05-23。
基金项目（Foundation item）：国家自然科学基金-云南联合基金重点项目（U1033601），国家自然科学
基金项目（40572159,40772189）。\[Project supported by the Joint Funds of the National Natural Science Foundation of China with the Natural Science Foundation of Yunnan（U1033601） and the National Natural Science Foundation of China（40572159，40772189）.\]
作者简介（Biography）：张家明，（1984-），男，博士生，主要从事斜坡水文学研究。\[Zhang Jiaming，（1984-），male，doctor，mainly engaged in hillslope hydrology.\] E-mail: zjm_engeo@163.com；Tel: 13888442865 *
通讯作者(Corresponding author): 徐则民，（1963-），男，教授，博士生导师，主要从事斜坡水文学研究。\[Xu Zemin，（1963-），male, professor，mainly engaged in hillslope hydrology.\] E-mail: abc5100@188.com
更新日期/Last Update: 1900-01-01