Restoration agriculture

Sample

Jules Pretty

Our agricultural and food systems are not meeting everyone's needs, and despite great progress in increasing productivity over the past century, hundreds of millions of people remain hungry and malnourished. This book describes a different form of agriculture: one founded more on ecological principles and which is also more harmonious with people, their societies and cultures. Edited by the world's leading expert on sustainable agriculture, this volume brings together the most influential scholarship in the field. The book maps out the complex subject area of sustainable agriculture and introduces and explains key and hard-to-find literature. It covers theoretical developments and critical appraisals of evidence, addressing what is not sustainable about current or past agricultural and food systems, as well as studies of transitions towards agricultural and rural sustainability at farm, community, regional, national and international levels, and through food supply chains. This highly accessible one-of-a-kind collection is the essential student and practitioner reference text in sustainable agriculture.

Sample

Liba Svobodova

Performance evaluation is not just determining whether or not a system meets certain objectives; it is also understanding if and how system performance can be improved. A computer system analyst must master a number of techniques to ascertain important factors and their effect on system performance. The purpose of this book is to develop a better understanding of the problem of performance evaluation and to analyze available techniques within this concept. Directed to present and future computer analysts and designers, readers should be familiar with concepts of hardware organization, system architecture, and operating systems.

Sample

Frederik Pohl

The overcrowded Earth isn't room enough for Evesham Giyt, a solitary and brilliant computer hacker who yearns for the long-gone frontiers of the past. Chasing stories of unspoiled beauty and endless possibility, he takes a leap across the stars to the rugged colony world of Tupelo and soon finds himself a respected member of the community and mayor of the colony's human population. Humanity isn't the first race to colonize Tupelo: as mayor, Giyt is part of a council of races trying to peacefully coexist despite wildly disparate cultures and traditions. But as Giyt learns to like his alien neighbors, he begins to realize that his fellow humans may have other plans for Tupelo, plans that don't include peace but do include lots of dead aliens. It will be up to Giyt to crack the human conspiracy and carve out a future for all of Tupelo...before it gets him killed!

Sample

George M. Woodwell

A century of industrial development is the briefest of moments in the half billion years of the earth's evolution. And yet our current era has brought greater changes to the earth than any period in human history. The biosphere, the globe's life-giving envelope of air and climate, has been changed irreparably. In A World to Live In, the distinguished ecologist George Woodwell shows that the biosphere is now a global human protectorate and that its integrity of structure and function are tied closely to the human future. The earth is a living system, Woodwell explains, and its stability is threatened by human disruption. Industry dumps its waste globally and makes a profit from it, invading the global commons; corporate interests overpower weak or nonexistent governmental protection to plunder the planet. The fossil fuels industry offers the most dramatic example of environmental destruction, disseminating the heat-trapping gases that are now warming the earth and changing the climate forever. The assumption that we can continue to use fossil fuels and "adapt" to climate disruption, Woodwell argues, is a ticket to catastrophe. But Woodwell points the way toward a solution. We must respect the full range of life on earth -- not species alone, but their natural communities of plant and animal life that have built, and still maintain, the biosphere. We must recognize that the earth's living systems are our heritage and that the preservation of the integrity of a finite biosphere is a necessity and an inviolable human right. -- Provided by publisher.