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Policies drain the North China Plain: agricultural policy and groundwater depletion in Luancheng County, 1949-2000

Reports & Research
Diciembre, 2003
China

The report examines the relationships between agricultural policies in the North China Plain, the approaches to water management that evolved from them, the quantity of water that was actually used, and the consequent groundwater depletion beneath Luancheng County, Hebei Province, from 1949 to 2000. To systematically address these relationships, we use a comprehensive water-balance approach.

The energy-irrigation nexus

Policy Papers & Briefs
Diciembre, 2003

Electricity subsidies for farmers are an expensive legacy of past development policies. The result is overuse of both energy and water in groundwater-irrigated agriculture?threatening the financial viability of the power sector and the future of the groundwater resource itself, along with the livelihoods of the millions who depend on it. The most popular solution is the metered tariff, promoted by international donors and many of India?s state governments.

A hierarchical method for soil erosion assessment and spatial risk modelling: a case study of Kiambu district in Kenya.

Journal Articles & Books
Diciembre, 2003
Ethiopia
Africa
Eastern Africa

Though a lot has been done and achieved in erosion research and control in Kenya, most of the erosion research methods have in the past put emphasis more on quantifying soil loss or measuring soil erosion, rather than pinpointing to areas that are likely to suffer soil erosion. In most cases the erosion processes have been assumed to occur in a uniform manner at all levels of the landscape hierarchy, and hence the results of one level observation can be factored to cover other levels for which data was not collected.