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Displaying 131 - 135 of 164Incentives to reduce groundwater consumption in Yemen
In this paper options for changing the incentive structure to reduce unsustainable groundwater consumption in Yemen are evaluated. Special attention is paid to incentives that decrease the profitability of irrigation water use and subsidies on improved irrigation technology.
OPTIMIZING SUBSURFACE DRAINAGE PRACTICES IN IRRIGATED AGRICULTURE IN THE SEMI-ARID AND ARID REGIONS: EXPERIENCES FROM EGYPT, INDIA AND PAKISTAN
In this paper, the role of subsurface drainage in irrigated agriculture in semi-arid and arid regions is discussed based on experiences obtained in Egypt, India and Pakistan. Agriculture in these countries is predominantly practiced by small, marginal farmers with landholdings of often less than one hectare. In general, they do not have the means to pay for the investments in irrigation and drainage themselves. Consequently, most irrigation and drainage projects are funded by the (local) governments.
Experiences in monitoring and assessment of sustainable land management
Although sustainable land management (SLM) is widely promoted to prevent and mitigate land degradation and desertification, its monitoring and assessment (M&A) has received much less attention. This paper compiles methodological approaches which to date have been little reported in the literature. It draws lessons from these experiences and identifies common elements and future pathways as a basis for a global approach. The paper starts with local level methods where the World Overview of Conservation Approaches and Technologies (WOCAT) framework catalogues SLM case studies.
Land and water management of tidal lowlands: Experiences in Telang and Saleh, South Sumatra
Indonesia has available over 20 million ha of tidal lowlands. In their natural state these are generally waterlogged areas that may be regularly inundated for prolonged periods. Almost 4 million ha of these tidal lowlands have been reclaimed, partly by spontaneous settlers and partly by the government.
To retire or expand? A fuzzy GIS-based spatial multi-criteria evaluation framework for irrigated agriculture
This paper presents a GIS framework for multi-criteria evaluation of land suitability for the expansion or retirement of irrigated cropland at a catchment scale in Australia. This framework is based on the fuzzy linguistic ordered weighted averaging (FLOWA) approach which integrates the analytical hierarchy procedure (AHP) and quantifier-guided OWA operators in an ArcGIS 9.2 environment. The FLOWA module proved to be highly flexible and efficient in generating and visualising a wide range of different multi-criteria decision strategies.