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Primary Productivity of Grass Ecosystems of the Tropics and Sub-tropics
The United Nations Environment Programme (UNEP) has sponsored a programme of intensive research into the primary productivity of grass ecosystems in both the tropics and subtropics, resulting in this book. It therefore represents the first internationally integrated study of bio-productivity since the International Biological Programme (IBP) of the early 1970s. The large international team of scientists sponsored by UNEP identified five different grassland ecosystems, determining their levels of productivity as well as the effect of climatic variation on primary production and photosynthesis. The methods and results described indicate a three to ten-fold increase in estimates of productivity from the IBP figures, raising implications for a number of important questions such as: the understanding of how carbon is cycled, the environmental impact of removing grasslands, assessment of these ecosystems as genetic resources of productive grasses, assessing the impact of rising carbon dioxide levels in the atmosphere, and establishing ground truth data for remote sensing of grassland productivity. This book provides a comprehensive assessment of an extremely important but under-researched biome. It should be of interest to a wide range of environmental scientists, including ecologists, atmospheric scientists, biogeographers, and environmental physiologists..
Price: $100.00
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Encyclopedia of Fruit Trees and Edible Flowering Plants in Egypt and the Subtropics in Egypt and the Subtropics (Modern Arabic Writing)
This definitive work, the result of two lifetimes of experimentation and research, provides a much-needed reference to all the genera and species of fruit trees and edible flowering plants cultivable in Egypt and other countries of the subtropics. In the first part of the book the authors introduce the reader to the general conditions relating to the cultivation of edible plants, such as the nature of the soil, irrigation, and the struggle against pests and diseases. The second part, which forms the bulk of the book, consists of an exhaustive alphabetical descriptive catalog of more than 9,000 genera and species, based on first-hand experimental data and illustrated with line drawings. The final part of the book contains an analytical index of genera (by type and use) and a comprehensive key of over 6,000 common plant names..
Price: $26.00
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