As a result of the green revolution, the use of yield-increasing inputs such as fer- tilizer and pesticides became a matter of course in irrigated rice farming in Southeast Asia.
There have been many significant microbiological, biochemical and technological advances made in the understanding and implementation of anaerobic digestion processes with respect to industrial and domestic wastewater treatment.
Oral birth in the Australian gastric brooding frog Rheobatrachus sUus 2 Preface I have deliberately chosen the title picture to the preface, which shows the oral birth of a young gastric brooding frog (Rheobatrachus situs), to draw the reader's attention to the preface since I wish to explain why the book was written and illustrated in the way it now appears.
By the end of the last century, the only region in all of Europe where the natural vegetation remained untouched over large expanses was Eastern Europe.
The Plant Root and the Rhizosphere was a major topical feature of the first International Symposium on Factors Determining the Behavior of Plant Pathogens in Soil held at the University of California, Berkeley in 1963.
Rapidly increasing interest in the problems of air pollution and source-receptor relationships has led to a significant expansion of knowledge in the field of atmospheric chemistry.
Biotechnology has come to a stage where, by replacing some of the age- old practices of breeding, it can produce novel and improved plants and animals that can better serve human beings and their purposes.
Exposure to polychlorinated dibenzodioxins and -furanes at very low concentrations is of particular interest with respect to possible human health risks.
On May 25,1978, the Commission on Toxicology ofthe Division of Clinical Chemistry of the International Union of Pure and Applied Chemistry (IUPAC) established its Subcommittee on Environmental and Occupational Toxicology of Cadmium following aseries of Commission meetings in Kristiansand, Norway.
Report, the editors replaced the term "e;speciation"e; wherever it occurred by "e;identification and quantification,"e; or "e;description of abundance,"e; or "e;reactivity,"e; or "e;transformation"e; of a chemical species, according to whichever one of the four meanings the author had evidently meant to convey.
It will be a long time before the quality of this profusely illustrated book is overtaken and the present spate of books on the subject of obstetric ultrasound may, as a result, suffer a numerical set-back - especially with translation into English which will "e;deliver the milk on everyone's doorstep"e;.
A distinction between contamination and pollution is useful when we wish to consider what strategies to adopt in researching the impact of anthropogenic activities on the marine environment.
From earlier ecological studies it has become apparent that simple univariate or bivariate statistics are often inappropriate, and that multivariate statistical analyses must be applied.
These are the proceedings of an Advanced Research Workshop (ARW), sponsored by the NATO Science Panel, entitled "e;Pest Control: Operations and Systems Analysis in Fruit Fly Management"e;.
In most of the developed countries of the,World, significant efforts to control the pollution of surface waters have been underway for decades, and particularly the last 10-15 years.
May I first congratulate, inconditionally, the Association MEDMARAVIS for organizing this symposium and for inviting me re- presenting the Sardinian Ministry of the Environment.
The protection of human health and food and fiber resources against the ravages of pests of many sorts is a continuous struggle by all people in the world.
Compared with forces occurring in soil mechanics problems in civil engineering, the forces that are applied to soil in farming operations generally have a short duration, less than a few seconds, a small loaded area, no more than a few square decimeters, and small intensities, 10 bar being a high value.
I am pleased to be able to introduce this book by Monsieur lean-Claude Gall, firstly because it is a book, secondly because its author has been a colleague for 15 years, and finally because it is a book which demonstrates the growing importance of Palaeobiology.
For several decades botanists have been impressed by the discovery that the distribution of secondary plant substances follows the general lines of plant relationships.
In keeping with the spirit of an Advanced Series in the Agricultural Sciences, we have attempted to address herein most of the current research areas being used to characterize, describe and manage salt-affected soils.
The development of a crop, and therefore its health, is always the result of interplay between biological and environmental factors, as influenced by human agency.
When, in 1966, the Gennan Research Society directed the attention of oceanographers in the Federal Republic of Ger- many to problems of marine pollution, I was not enthusiastic.
