Irrigated agriculture monitoring by geographic information system (GIS) and remote sensing (RS) techniques for southern part of Indus Basin (Sindh province, Pakistan)
2003
Malik, Z.H. (Sindh Agriculture Univ., Tandojam (Pakistan)) | van Lieshout, I.A.M. | Agha, S.K. | Channar, G.M.
The rapid growth of population has put a severe strain on soil and water resources in developing countries. Due to lack of proper planning and the shortage in extension service in the agricultural sector, where the major part of water supply is needed, farmers compete in searching for water resources. Thus in this water competition arena, where water is needed for agriculture, industrial, domestic and other needs, irrigation water management is very essential. The irrigation water management is very complex in especially for vast regions, such as Indus Basin 16 million ha wide. Therefore, in addition to present traditional methods of water management, new modern techniques also required to solve the problems for the river basins. As compared to traditional methods, the management practice of irrigated agricultural land by GIS and remote sensing techniques has evident advantage as objectivity, time-saving, low costs and a lot of auxiliary information can be obtained at the same time. GIS/RS techniques are used to monitor Irrigated Agriculture for southern part of Indus (Sindh Province). The screen digitizing method is used to digitize map of Sindh Province. The NDVI is estimated from NOAA-AVHRR satellite data for both kharif and rabi seasons, the agriculture and non-agriculture areas are identified. This will certainly lead to know the uses of water for agriculture and non-agricultural ecosystem in river basins and also proper allocation/ distribution of water at different growing stages.
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