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Showing items 1 through 9 of 165.-
Library ResourceJournal Articles & BooksDecember, 1990Nigeria, Germany, Peru, Bulgaria, Bolivia, Greece, Italy, Japan, Mexico, Turkey, Uzbekistan, Romania, Portugal, Senegal, Paraguay, Togo, Brazil, Ghana
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Library ResourceJournal Articles & BooksDecember, 1990
Paralelamente a la creciente preocupacin por el ambiente, se ha manifestado una gran inquietud por el porvenir de los recursos forestales mundiales. As lo demuestra fehacientemente la adhesin de ms de 70 pases en desarrollo a los principios del Plan de Accin Forestal en los Trpicos. En este nmero, Unasylva examina varios aspectos de la relacin del bosque con el medio ambiente. Uno de los temas ms animadamente debatidos es el de la perspectiva de que cambie el clima en todo el mundo. K.
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Library ResourceJournal Articles & BooksDecember, 1990Italy
This document is prepared for fisheries biologists, managers and administrators concerned with lagoon fisheries and aquaculture. Our main objective is to draw attention to the need for greater understanding of relationships between the hydraulics and productivity of lagoon fish and shellfish. The fishery yields from lagoons vary widely, and, probably, predictably, once such relationships are understood. Furthermore, the productivities of many lagoons could probably be enhanced by hydraulic manipulations, but the hydraulic manipulation is presently risky, except in dystrophic lagoons.
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Library ResourceJournal Articles & BooksDecember, 1990France, Honduras, United States of America, Italy
Depending on land management objectives, plus a host of environmental variables, fire will sometimes be an enemy, at other times a friend; in nearly all cases, however, it will continue to exert a powerful influence on natural resource ecosystems. This being so, consideration of the potential impact (both positive and negative) of fire is essential in all land-use plans and programmes for forestry development.
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Library ResourceJournal Articles & BooksDecember, 1990India, France, Honduras
El fuego es a veces enemigo, a voces amigo, segn el uso a que se destine la tierra y segn el valor que asuman unas cuantas variables ambientales; en cualquier caso, siempre repercute en los ecosistemas de recursos naturales. Es esencial, por consiguiente, tener en cuenta su efecto probable (tanto positivo, como negativo) al formular planes y programas de desarrollo forestal.
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Library ResourcePolicy Papers & BriefsDecember, 1990Indonesia, Australia, Japan, India, Guinea, Papua New Guinea, Italy, Oceania
This report summarises results and recommendations arising from phase one of the Sepik River Fish Stock Enhancement Project. This phase investigated and evaluated the need for fish stocking of the Sepik and Ramu Rivers in Papua New Guinea.
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Library ResourceLegislationAugust, 1990Republic of Korea, Asia, Eastern Asia
The purpose of this Act is to prevent danger and damage to the national health and environment due to air pollution, and to manage and preserve properly the atmospheric environment (art. 1). The Minister of Environment shall provide for installation of a network measuring devices, and measure at all times the degree of air pollution in Korea and the Special Metropolitan City Mayor, Metropolitan City Mayor or Do-Governor shall do the same for its area of jurisdiction and report to the Minister (art. 3).
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Library ResourceLegislation & PoliciesConstitutionLegislationApril, 1990China, Hong Kong
Preamble: "Hong Kong has been part of the territory of China since ancient times; it was occupied by Britain after the Opium War in 1840. On 19 December 1984, the Chinese and British Governments signed the Joint Declaration on the Question of Hong Kong, affirming that the Government of the People's Republic of China will resume the exercise of sovereignty over Hong Kong with effect from 1 July 1997, thus fulfilling the long-cherished common aspiration of the Chinese people for the recovery of Hong Kong.
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Library ResourceLegislation & PoliciesLegislationApril, 1990Hong Kong
Decree of Yang Shangkun, President of the People's Republic of China: 4 April, 1990:
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Library ResourceConstitutionDecember, 1990Namibia
The constitution was drafted and approved by a Constituent Assembly.
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