Hydrology in the Guiana shield and possibilities for payment schemes

After a general overview of the state of Poland's surface waters, the influence of agricultural activity on the (ground and surface) water quality is highlighted, and rules on how to protect water resources by applying suitable agricultural practices are being formulated. This document is developed within the project "Integrating nature protection and agricultural policy".
Proposes an overview of the concept of sustainable use, drawing from the growing body of literature concerned with common property resources, ecosystem management and community based natural resource management. It also provides a synoptic account of the state of living natural resources in Mesoamerica, taking into account the efforts undertaken in situ and ex situ Conservation.
This publication deals in two distinct parts with the status of our natural resources on the high-seas (approximately 50 per cent of the Earth's surface) which contain open-access common resources. Part 1 identifies and reviews a certain number of relatively discrete or localised geographic features/habitats/biological communities that have particular scientific, societal or economic interest.