ISWC OpenIR  > 水保所知识产出(1956---)
段良霞1,2; 黄明斌2
Source Publication中 国 水 土 保 持 科 学

深层渗漏(D P )是水文循环的重要环节,准确评价 D P 对于分析水文循环规律,合理制定水资源规划和地下水
地区 D P 的评价方法主要有经验方法、物理方法、示踪方法和数值模拟方法。由于经验系数需要校正,因而经验方法
态监测法;示踪方法主要从示踪剂的峰值、剖面形状和总含量来计算 D P ,此方法不是对 D P 的直接测定,且没有考虑
示踪剂的空间变异;数值模拟理论上可对各种条件下的 D P 进行模拟和预测,但获取参数的难度较大。针对各方法
存在的优缺点,将现有评价方法相结合,相互验证,可提高模拟精度;鉴于 D P 的时空变异性,将现有方法与 GIS 等新
技术集成,可评价大尺度 D P 的空间异质性;同时,进行长时间序列的野外观测,既可直接获取 D P 的动态信息,也可

Other Abstract

Deep percolation (D P ) is termed as the movement of water from soil surface
to sufficient depths,usually below the root zone. It generally occurs when infiltrated water exceeds the
storage capacity of the soil and plays an vital role in hydrologic cycle. Accurate evaluation of the deep
percolation is crucial to analyze the processes of the hydrologic cycle. Furthermore,deep percolation is
pivotal for the management and rational development of groundwater resources,especially in arid and
semi-arid regions where water resources is deficient. [Methods]This paper reviews several approaches
to assess deep percolation in arid and semi-arid regions,i. e. ,empirical,physical,tracer,and
numerical modelling. [Results] The principle,applicability,merits and drawbacks of the above-
mentioned four approaches are commented. Due to the empirical coefficient requires calibration,the
empirical approach is limited while it is applied in the other regions. Physical approach includes lysimeter  method,soil water flux method,water balance method,Darcy method,and underground water-table
fluctuation method. The tracer approach is used to estimate deep percolation by the identification of peak
value,profile shape,and the amount of tracers,but this approach cannot directly measure the deep
percolation; moreover,the spatial variation in tracers is not considered in it. Theoretically,the approach
of numerical modelling can be used to estimate and predict the deep percolation under any circumstance.
Nevertheless,it is difficult to obtain the parameters that is necessary for the numerical modelling.
[Conclusions]Considering the advantages and disadvantages of each method,the integration of existing
evaluation methods and mutual verification of them can improve the precision of the simulation. Due to
the spatial and temporal variability of D P ,the integration of existing methods and GIS may evaluate the
spatial heterogeneity of D P at large scale. Simultaniously,long-term series of field observation may not
only acquire the dynamic information of D P ,but also provide the data support for the parameters of each

Keyword深层渗漏 经验方法 物理方法 示踪方法 数值模拟方法
Indexed By中文核心期刊要目总览
Document Type期刊论文
2.西北农林科技大学,黄土高原土壤侵蚀与旱地农业国家 重点实验室,712100,陕西杨凌
Recommended Citation
GB/T 7714
段良霞,黄明斌. 干旱-半干旱地区深层渗漏研究方法综述[J]. 中 国 水 土 保 持 科 学,2016,14(2):155-162.
APA 段良霞,&黄明斌.(2016).干旱-半干旱地区深层渗漏研究方法综述.中 国 水 土 保 持 科 学,14(2),155-162.
MLA 段良霞,et al."干旱-半干旱地区深层渗漏研究方法综述".中 国 水 土 保 持 科 学 14.2(2016):155-162.
Files in This Item: Download All
File Name/Size DocType Version Access License
干旱_半干旱地区深层渗漏研究方法综述_段(297KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[段良霞]'s Articles
[黄明斌]'s Articles
Baidu academic
Similar articles in Baidu academic
[段良霞]'s Articles
[黄明斌]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[段良霞]'s Articles
[黄明斌]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 干旱_半干旱地区深层渗漏研究方法综述_段良霞.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.