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In this new, complete Guide to Texas Grasses, Robert B. Shaw and the team at the Texas A&M University Institute of Renewable Natural Resources provide an indispensable reference to the world’s most economically important plant family. After discussing the impact of grass on our everyday lives as food, biofuels, land restoration, erosion control, and water become ever more urgent issues worldwide—the book then provides:a description of the structure of the grass plant;details of the classification and distribution of Texas grasses;brief species accounts;distributional maps;color photographs;plus black-and-white drawings of 670 grass species—native, introduced, and ornamental. Scientific keys help identify the grasses to group, genera, and species, and an alphabetized checklist includes information on: origin (native or introduced); longevity (annual or perennial);growth season (cool or warm season); endangered status;and occurrence (by ecological zone). A glossary, literature citations, and a quick index to genera round out the book. Guide to Texas Grasses is a comprehensive treatment of Texas grasses meant to assist students, botanists, ecologists, agronomists, range scientists, naturalists, researchers, extension agents, and others who work with or are interested in these important plants.
Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Environmentally Sustainable Development Studies and Monograph Series No. 17. A 1995 publication from the World Bank, Monitoring Environmental Progress: A Report on Work in Progress, generated great interest in the use of indicators to measure the pace and direction of change in environmentally sustainable development. In particular, the attempts to define what it means to be wealthy or poor by recognizing that a countrys wealth is the combination of various forms of capital--produced, natural, and human resources--led to new thinking on what constitutes wealth and how it might be measured. The current document, Expanding the Measure of Wealth: Indicators of Environmentally Sustainable Development, extends the earlier analysis by highlighting portfolio indicators for tracking a countrys progress toward sustainable development. These include new estimates of national wealth and genuine savings, a detailed analysis of changes in subsidies that have environmental consequences, and progress on the conceptual foundations of social capital. The new estimates reinforce the importance of the natural resource base of all economies as well as the fundamental role of human resources, including both human capital and the more difficult to define concept of social capital.