A Study of Water Budget in the Desert Area of Northwest China

• Project/Area Number: 02041043
• Research Category: Grant-in-Aid for international Scientific Research
• Allocation Type: Single-year Grants
• Section: Field Research
• Research Institution: Kyoto University
• Principal Investigator: IKEBUCHI Shuichi Disaster Prevention Research Institute, Kyoto University, Professor, 防災研究所, 教授 (20026181)
• Co-Investigator(Kenkyū-buntansha): INOUE Jiro Disaster Prevention Research Institute, Kyoto University, Instructor, 防災研究所, 助手 (90027300) ; KAWANISHI Hiroshi Faculty of Education, Ohita University, Professor, 教育学部, 教授 (60040698) ; HORIGUCHI Mitsuaki Disaster Prevention Research Institute, Kyoto University, Instructor, 防災研究所, 助手 (60190253) ; KAIHOTSU Ichiro Faculty of Integrated Arts and Science, Hiroshima University, Assistant Professo, 総合科学部, 講師 (60160959) ; KAI Kenji Institute of Geoscience, Tsukuba University, Assistant Professor, 地球科学系, 講師 (50214242) ; KOTODA Kazuo Institute of Geoscience, Tsukuba University, Professor, 地球科学系, 教授 (40015540) ; KOBAYASHI Tetsuo Faculty of Agriculture, Kyushu University, Associate Professor, 農学部, 助教授 (20032576) ; SHIMOJIMA Eiichi Disaster Prevention Research Institute, Kyoto University, Instructor, 防災研究所, 助手 (80027276)
• Project Period (FY): 1990
• Project Status: Completed (Fiscal Year 1990)
• Budget Amount: ¥4,000,000 (Direct Cost: ¥4,000,000); Fiscal Year 1990: ¥4,000,000 (Direct Cost: ¥4,000,000)
• Keywords: Desert / Water Balance / Heat Balance / Evaporation / Groundwater

Research Abstract

In order to do research on processes of water and heat balances in desert area the observational systems were established and some preliminary were experiments were implemented on Heihe River Basin in Gansu.
1. Survey of hydrological characteristics in Heihe area
The Heife Area is located in the dry area along the Gobi desert. In addition to other conditions such as atmospheric forcing and land surface state. The behavior of heat balance and the real evapotranspiration in this area depend on the soil moisture near surface ground and underground because the surface ground does not keep the wet condition.
This survey was done in order to obtain the data available for analysis of heat and water balances in the area and estimation of evapotranspiration. As the first step the groundwater table and its physiochemical characteristics such as PH and electrical conductivity were measured.
2. Boring of observational well and holes for observing the soil moisture
The new observational well was digged by the boring machine near the basic station of desert. Its depth was 15m and groundwater level was about 4m. And in order to get the data continuously four water-level recorders were established at this new well and the existing wells.
3. Measurement of thermal characteristics of sandy layer in desert area. Their results were 2.0X10^<-3>cal/cm・sec・^0 C in thermal conductivity and 0.32cal/cm^<3.0> c in heat capacity.
These results will be available in the Sino-Japan Cooperational Program on hydrological observation in Heihe area (HEIFE), 1991-1993.

Research Products

• [Publications] 光田 寧・山田 道夫・井上 治郎: "黒河流域における大気ー地表相互作用に関する日中共同研究(HEIFE)の現状" 天気. Vol.37,No.11. 721-725 (1990)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 古藤田 一雄: "乾燥地域の水文環境ー河西回廊の水利用と水収支" 造水技術. Vol.16,No.2. 1-7 (1991)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 小林 哲夫・宮川 賢治: "乾燥裸地面からの日蒸発量推定法" 水文・水資源学会誌. (1991)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 開発 一郎・古藤田 一雄・谷口 真人: "Physical and Hydrological Characteristics of Soil in Gobi Desert" ハイドロジ-. 21. (1991)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Mitsuta, Yasushi, Yamada, Michio and Inoue, Jiro: "Present state of Heife Project." Weather. 37-11. 721-725 (1990)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Kotoda, Kazuo: "Hydrological Environment in Arid Area-Water Utilization and Water Balance in Heihe River Basin." Water Refinement Engineering. 16-2. 1-7 (1990)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Kobayashi, Tetsuo and Miyagawa, Kenji: "Estimation of Daily Evaporation from Arid Bare Soil" Japan Society of Hydrology and Water Resources. (1991)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Kaihotsu, Ichiro, Kotoda, Kazuo and Taniguchi, Makoto: "Physical and Hydrological Characteristics of Soils in Gobi Desert" Hydrology. (1991)
  • Description: 「研究成果報告書概要(欧文)」より