By Craig J. Pearson, Ray L. Ison
The demanding situations dealing with grassland agronomists have gotten more and more complicated, with environmental and moral matters assuming a better importance along extra traditional technical facets. This new accelerated variation, with an elevated emphasis on platforms considering, has been revised to mirror present issues, wisdom and perform. As such it addresses the necessity for a special method of grassland agronomy, offering novel and provocative fabric to train, stimulate and enthuse the reader.
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Extra resources for Agronomy of Grassland Systems
There were relatively few humans in the world as agriculture began, but as Larry Busch ("ññâ) observed `ever since the ¢rst hominids stalked a mastodon, ate a wild berry, or cleared brush from in front of a cave, we have been making nature together'. Of course at ¢rst it was hardly noticeable, but technologies we have developed have enhanced our abilities to make and remake `nature' as well, of course, as amplifying the rate at which, for better or worse, we do this (Mooney, "ññã). The technologies started with writing and ploughing and continue today with satellite images of The title of this chapter follows the perspective we presented in Chapter ": that grassland systems are socially constructed.
I S O N , R . L . ("ññâ). Soft systems: a non computer view of decision support. In Decision Support Systems For the Management of Grazing Lands: Emerging Issues, eds J. W Stuth & B. G. Lyons, pp. ðá^""ä. UNESCO-Man and the Biosphere Book Series. Vol "". : Parthenon Publishing. P R E T T Y , J . N . ("ññã). Alternative systems of inquiry for a sustainable agriculture. Institute of Development Studies Bulletin, áä, âæ^ãð. R U S S E L L , D . B . & I S O N , R . L . ("ññâ). The researchdevelopment relationship in rangelands: an opportunity for contextual science.
Fire and other forms of manipulation of herds of herbivores were some of the ¢rst `grassland management' tools; grass ¢res destroy old vegetation and game are attracted to the fresh growth. Many of the early nomads followed the migratory routes of the large herds of herbivores, such as the wildebeest of east Africa and the reindeer of northern Europe. Nomads moved from pasture to pasture: the word `nomad' is derived from the Greek word `nomos', meaning pasture. "). Fagan ("ñðå) described the domestication of plants and animals as one of the most momentous 18 The emergence of grassland systems the earth, which show vivid examples of landuse change and rain forest destruction.
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