000			02560nab a2200361 a 4500
003			AR-ReUNN
005			20260715065652.0
008			260630s1999 uk |||||||||||||||||eng
041	0		_aeng
100	1		_aBucher, Enrique H. _965058
700	1		_aHuszar, P. C. _9133634
245	1	0	_aSustainable management of the gran Chaco of South América : ecological promise and economic constraints / E. H. Bucher ; P. C. Huszar
264		1	_aLondon _bAcademic Press _c1999
300			_a10 páginas
500			_aMaterial de Recursos Electrónico. Disponible en: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WJ7-45FKNVD-9&_user=1677679&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000054197&_version=1&_urlVersion=0&_userid=1677679&md5=540250663bba9c2a443f779f1e714de6
520			_aAbstract: The vast plain known as the Gran Chaco is a natural region of more than 1·3 million square kilometres, the second largest natural biome in South America, with only the Amazon region being larger. It extends over parts of Argentina, Bolivia, Paraguay and, marginally, Brazil. The original landscape of the region was mostly a park land with patches of hardwoods intermingled with grasslands. Increasing human encroachment, largely by poor campesinos, with associated overgrazing, excessive timber harvesting, charcoal production and over-exploitation of wildlife, is transforming the region into a dense and unproductive shrub land and is contributing to increasing rural poverty. A management system for the sustainable use of the Chaco has been developed based on a multiple-species ranching system that includes beef, timber, charcoal and wildlife production. An evaluation of the management system finds that it is capable of protecting and enhancing the resource base, while providing higher economic returns in a sustainable manner. However, high initial costs, as well as a divergence between the «best»interests of campesinos and society, jeopardize the feasibility of the managed system.
650		4	_aEcología _94910
650		4	_aDesarrollo Sostenible _95403
650		0	_aEconomía _94397
650		4	_aChaco _94349
650		4	_aArgentina _94258
650		4	_aProducción _94624
650		4	_aMultiples _9133635
650		4	_aEspecies _99279
650		4	_aViabilidad _9128586
650		4	_aViability _9133636
650		4	_aSupervivencia _960744
773	0		_tJournal of Environmental Management _gn. 57 (1999) _w218473
942			_cART
035			_a(AGROP)79733
001			224978
999			_c224978 _d224978
040			_aAR-ReUNN _bspa _cAR-ReUNN _eaacr2