The wetlands around the estuaries of Ogun River and its environs in Ikorodu/Kosofe areas of Lagos State remain unprotected. 60 per cent of Lagos metropolis was originally natural wetlands.
From forest clearing to landslides, then private claims to ownership, and with diversion of streams causing new landslides, a progression of environmental crises is tracked over time. The paper provides a timeline of 23 major events affecting the health of Rupa Lake and its wetlands (1952-2005).
Land use change results from the interaction between the human and the natural system and therefore various scientific disciplines have developed paradigms and methods to study land use change. However, these disciplinary approaches can only cover part of the complex system of land use change.
The study explores the relationship between decentralization and conflict, comparing two case studies in Cambodia and the Philippines. It addresses to what degree and in what ways decentralization influences conflicts that are related to natural resources management (NRM), especially where local institutions are often unrepresentative of, and unaccountable to local communities.
Non-point source pollution, such as nutrient runoff to waterways from agricultural production, is an environmental problem that typically involves asymmetric information. Land use changes to reduce pollution incur opportunity costs that are privately known to landholders, but these changes provide environmental benefits that may be more accurately estimated by regulators.
Conversion of arable land (maize) to pasture will affect the soil organic matter (SOM) content. Changes in the SOM content were studied using a size- and density-fractionation method and C-13 analysis. Twenty-six years of maize cropping had resulted in a depletion of carbon stored in the macro-organic fractions (>150 mu m) and an increase in the 250 mu m), light (b.d.