Environmental Science: Earth As A Living Planet

The debate we will lis decennium over and over again between population subject matter and technology's ability to increase it is seen here. In chapter six we learn the prefatory characteristics of ecosystems and how their unique characteristics enable them to sustain life. We see also how trophic levels are critical in the food chains and webs in the environment, and learn of a number of direct and indirect interactions that pass along in ecological environments. This holistic view of the community is alpha for understanding the vital nature of ecosystems in the whole surviving environment. Chapter seven on biological diversity shows the overwhelming richness of preserving biodiversity as an integral component of the interdependent elements of nature and its communities. genetic diversity, habitat diversity, and species diversity involves three ideas of species diversity, including species richness, species evenness, and species dominance (Botkin et al. 140). Throughout this chapter the authors make that a diversity of habitats permits sustainability of greater numbers of species. Chapter eight on biological productivity and efficiency flow continues to underscore the splendor of ecosystems as holistic environments by explicateing that

If these five chapters discuss the basic elements, stresses, and ecosystems of and on the environment in a holistic patchner, then the next five chapters that cost discuss the real problems faced by the environment. The first of these is chapter ten that discusses the problem of maintaining an adequate world food supply in light of exponentially increasing population and exhaustion of arable basis. Chapter eleven extends the themes in this chapter be delving into the enormous impact of husbandry on the environment.

From carrying capacities to pest control this chapter explores how our need to till the poop damages the environment in which we exist. The authors show how agriculture changes land cover, increases carbon dioxide, affects climate, and is the ca manipulation of nitrogen compound production and use that may cause "changes in global biogeochemical cycles" (Botkin et al. 217).

from flora to wildcat all elements of an ecosystem are part of its energy flow. Botkin (et al. 14) argue this energy flow "tells us about the very nature of life." In one of the most complex explanations of this book for beginners, the authors use the laws of thermodynamics to explain this energy process and flow. In chapter nine, they examine how ecosystems respond to disturbances from man and nature, such as man-made efforts like crop revolution to naturally occurring methods like ecological succession. We also see how twain kinds of efforts fail when damage is too severe or prolonged.

Botkin, D. B. and Keller, E. A. environmental Science: Earth As A Living Planet, (3rd edit.). spick-and-span York, New York: John Wiley & Sons, Inc., 2000.

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