Your search found 6 records
1 Sikkens, R.; Johnson, R.; Oaks, R. L.; Steenhuis, T. S. 1987. Irrigation rehabilitation, Africa version: users' manual. Ithaca, NY, USA: Cornell University. ix, 41p. (WMS report no.64)
(Location: IWMI-HQ Call no: 001.6425 G100 STK Record No: H04205)
2 Steenhuis, T. S.; Oaks, R.; Johnson, R.; Sikkens, R.; Vander Velde, E. J. 1989. Irrigation rehab: A computer aided learning tool for system rehabilitation. Irrigation and Drainage Systems, 3(3):241-253.
Irrigation management ; Rehabilitation ; Simulation ; Computer techniques ; Computer software ; Teaching materials
(Location: IWMI-HQ Call no: PER Record No: H005841)
(0.84 MB)
3 Johnson, R.. 1992. Factors determining groundwater use for irrigation in Pakistan's Punjab. Virginia, VA, USA: ISPAN. v, 28p.
(Location: IWMI-SA Call no: 631.7.6.3 G730 JOH Record No: H012781)
Analyses of groundwater use from two original concepts : total latent water demand and latent groundwater demand. Together they proved useful in characterizing irrigation water needs for areas such as Pakistan's Punjab Province, where access to water supplies is often constrained, and where water demand depends on many different factors. Of these factors, the two targeted by this research, marginal water costs and average water quality, had a strong impact on both the total latent water demand and latent groundwater demand observed in the study areas. Increasing marginal water costs tended to decrease total latent water demand, while poor water quality tended to increase total latent water demand. The 14 Lager study watercourse commands demonstrate the impact government policies can have.
4 Collins, R.; Dickinson, A.; Johnson, R.. 1998. The use of GIS and remote sensing techniques to predict erosion in the Nepal Middle Hills. In de Vries, F. W. T. P.; Agus, F.; Kerr, J. (Eds.), Soil erosion at multiple scales: Principles and methods for assessing causes and impacts. Wallingford, UK; Bangkok, Thailand: CABI Publishing; IBSRAM. pp.303-315.
Erosion ; Mountains ; Forecasting ; GIS ; Remote sensing ; Satellite surveys ; Models ; Simulation ; Runoff ; Catchment areas ; Soil properties / Nepal
(Location: IWMI-HQ Call no: 631.45 G000 DEV Record No: H027844)
5 Johnson, R.. 2003. District meets: Growing water demands from recreational lake. Water and Wastewater International, 18(7):23.
(Location: IWMI-HQ Call no: PER Record No: H033428)
6 Johnson, R.. 1989. Private tube well development in Pakistan's Punjab: review of past public programs/policies and relevant research. Colombo, Sri Lanka: International Irrigation Management Institute (IIMI). ix, 24p. (IIMI Country Paper Pakistan 1)
Tube well irrigation ; Agricultural production ; Economic aspects ; Environmental effects ; Equity ; Governmental interrelations ; Policy ; Research / Pakistan / Punjab
(Location: IWMI HQ Call no: IIMI 631.7.6 G730 JOH Record No: H005719)
Although Pakistan's surface irrigation development has a long history, it is only about 30 years ago that the development of groundwater resources was begun. During the past decade, government policy has been reoriented towards private, instead of public, tube well development in fresh groundwater areas. This paper examines the policies that have effected tube well development, and reviews past literature on the subject.
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