Contents

Preface

Current status and problems of the drainage system in Uzbekistan
*Reprinted by courtesy of the Japanese Association for Arid Land Studies
Yukio OKUDA, Junya ONISHI, Keisuke OMORI, Tetsuji OYA, Ayumi FUKUO, Rakhmon KURVANTAEV, Yulia SHIROKOVA, Vladimir Georgirevich NASONOV, p.1-7

Subject 1: Water Utilization

• Composition and classification of salts in surface water and groundwater in a semi-arid irrigated area  - Case study in Mirzaabad district, Uzbekistan - 
  *Reprinted by courtesy of the Japanese Society of Sand Dune Research
  Keisuke OMORI, Yulia I. SHIROKOVA, Junya ONISHI, p.9-21
• Actual Condition of Vertical Drainage for Farmland Salinization in the Republic of Uzbekistan
  *Translated and reprinted by courtesy of the Japanese Society of Irrigation, Drainage and Rural Engineering
  Yukio OKUDA, Keisuke OMORI, Junya ONISHI, p.23-31
• Water-saving Effect of Simplified Surge Flow Irrigation on Irrigated Farmlands in Arid Areas –A Case Study in the Republic of Uzbekistan- 
  *Translated and reprinted by courtesy of the Japanese Association for Arid Land Studies
  Junya ONISHI, Hiroshi IKEURA, Isamu YAMANAKA, Yoshinobu KITAMURA, Haruyuki FUJIMAKI, p.33-49
• Suitable inflow rate and furrow length for Simplified Surge Flow Irrigation
  *Reprinted by courtesy of the International Society of Paddy and Water Environment Engineering
  Junya ONISHI, Hiroshi IKEURA, Gaukhar K. PALUASHOVA, Yulia I. SHIROKOVA, Yoshinobu KITAMURA, Haruyuki FUJIMAKI, p.51-63

Subject 2: Mitigation of Soil Salinization

• A Trial of Desalinization by Using Mole-Drain in the Republic of Uzbekistan
  *Translated and reprinted by courtesy of the Japanese Society of Irrigation, Drainage and Rural Engineering
  Yukio OKUDA, Koki GOTO, Iwao KITAGAWA, p.65-74
• Problems and Measures for the Adoption of Cut-drain and Its Applicability to Soil Conditions in Uzbekistan
  *Translated and reprinted by courtesy of the Japanese Society of Irrigation, Drainage and Rural Engineering
  Yukio OKUDA, Haruyuki FUJIMAKI, Yoshinobu KITAMURA, Iwao KITAGAWA, p.75-90
• Characteristics of Salt Leaching in Saline Soil with a Subsurface Hardpan -A Study Using Undisturbed Soil Core Samples
  *Translated and reprinted by courtesy of the Japanese Society of Sand Dune Research
  Keisuke OMORI, Motoyoshi KOBAYASHI, Yuji YAMASHITA, Yasuhisa ADACHI, p.91-109
• Salt Removal Technology by Shallow Subsurface Drainage in Combination with a Cut-drain
  *Reprinted by courtesy of the Japanese Association for Arid Land Studies
  Yukio OKUDA, Junya ONISHI, Yulia I. SHIROKOVA, Iwao KITAGAWA, Yoshinobu KITAMURA, Haruyuki FUJIMAKI, p.111-118
• Salt Pushing Effect to the Side of the Ridge by Fixed Skip Furrow Irrigation - Case study in the Republic of Uzbekistan -
  *Reprinted by courtesy of the Japanese Association for Arid Land Studies
  Junya ONISHI, Yukio OKUDA, Gaukhar K. PALUASHOVA, Yulia I. SHIROKOVA, Yoshinobu KITAMURA, Haruyuki FUJIMAKI, p.119-127

Acknowledgments to journals
p.129
Acknowledgments to reviewers
p.130