Access count of this item: 74

Files in This Item:
File Description SizeFormat 
a47b0t75.pdf242.3 kBAdobe PDFView/Open
Title: 半乾燥地域平地での広域地下水涵養 -モンゴル高原での観測結果解析-
Other Titles: Groundwater Recharge at the Several Monitoring Station Sites in Semi-arid Land-Monitoring Data Analysis in the Study Area of Mongolia-
Authors: 開發, 一郎  KAKEN_name
山中, 勤  KAKEN_name
池淵, 周一  KAKEN_name
小尻, 利治  KAKEN_name
Author's alias: KAIHOTSU, Ichirow
KOJIRI, Toshiharu
Keywords: モンゴル高原
Mongolian plateau
semi-arid land
large area
soil moisture
groundwater recharge
Issue Date: 1-Apr-2004
Publisher: 京都大学防災研究所
Journal title: 京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B
Volume: 47
Issue: B
Start page: 863
End page: 869
Abstract: モンゴル高原の広大な試験域において, 半乾燥地域の地下水涵養の実態を探るべく, 気象・水文モニタリングを複数点で実施した。2001年夏から2002年夏までのモニタリングデータ解析の結果, 夏季に集中的に降雨があり, それに応じて下方への水分移動が生じた。発散ゼロフラックス面(DZFP)は常時地表面薄層付近にあり, それより上方は蒸発散に, それより下方は地下水涵養に寄与している。しかしDZFPより下層の年間の土壌水分貯留量は非常に少なく, 降水量の数%であり, 蒸発散がほとんど占め, 地下水涵養は夏季に極くわずかであることが明らかとなった。
To grasp the real state of groundwater recharge in the large area of the semi-arid land, we carried out monitoring of meteorological and hydrological elements at several sites of the study area that was set up in the Mongolian plateau. The monitoring data analysis in 2001-2002 showed some interesting results to understand real states of downward soil water movement. The divergent zero flux plane (DZFP) occurred at the 10 cm depth from spring to summer in each site. Intensive downward soil water movement with rainfall event in late spring and early - mid summer in the zone below DZFP can be considered to contribute mostly the shallow groundwater recharge. However, the amount of the shallow groundwater recharge was estimated to be less than 10 % of the annual precipitation.
Appears in Collections:No.47 B

Show full item record

Export to RefWorks

Export Format: 

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