Root Zone Salinity Management Using Fractional Skimming Wells with Pressurized Irrigation: Inception Report
IWMI, 2001 - 37 Seiten
In the short water supply environment of Pakistan, farmers try to minimize the gap between demand and supply of canal water extracting groundwater for irrigation purposes. However, saline groundwater upconing may occur in response to fresh groundwater withdrawals from unconfined aquifer underlain by salty groundwater. Skimming well technology can help in controlling this upconing phenomenon. However, in most cases, the small discharges of such wells cannot be efficiently applied on surface irrigated croplands. Pressurized irrigation application systems use small discharge effectively, but the cost and availability of equipment in the local market is a significant constraint. Root zone salinity is also expected to increase if this skimmed groundwater is used for irrigation purposes, particularly in the absence of proper salinity management practices. To address these issues, International Water Management Institute (IWMI), Water Resource Research Institute (WRRI) of National Agricultural Research Centre (NARC), and Mona Reclamation Experimental Project (MREP) of Water and Power Development Authority (WAPDA) are collaborating to undertake an applied research Project on Root Zone Salinity Management Using Fractional Skimming Wells with Pressurized Irrigation. This project is funded by the World Bank through WAPDA under the Research Sub-Component of the National Drainage Program (NDP). The duration of the project is three years March 1999-February 2002.
Was andere dazu sagen - Rezension schreiben
Es wurden keine Rezensionen gefunden.
Active Role Active Active Role Leading Active Support Leading Activities Monthly Progress Agricultural aquifer Bahawalnagar Bhalwal Chandio cropping intensity cropping pattern distributaries Doabs Farm farmers FESS area fractional skimming fresh and salty fresh groundwater layer Groundwater table depth Hakra Haroonabad hectares Indus Basin Information Collection Skimming Irrigation Advisory Services irrigation application systems irrigation scheduling advisory irrigation water Jhelum land holdings Leading Role Active Leading Role Leading Leading Role Technical manage root zone Monthly Progress Report MREP area Pakistan Participant Participant Participant pressurized irrigation application Pressurized Irrigation system Progress Report Year-end project area pumping Punjab Quarterly Progress Report Refinement and Installation Research Studies Role Active Role Role Leading Role Role Technical Support root zone salinity salty groundwater interface SCARP tubewells scheduling advisory services Shahpur units skimming well technology Software Activities Monthly soils Sufi Sugarcane Support Advisory Role Support Leading Role surface drains Survey and Information tile drainage upconing WAPDA zone salinity management