000			01926nam a22003737a 4500
001			G28149
003			MX-TxCIM
005			20240408174656.0
008			240408s1991 at ||||| |||| 00| 0 eng d
040			_aMX-TxCIM
041	0		_aeng
043			_aAU
072		0	_aK01
072		0	_aK70
090			_aCIS-1486
100	1		_aBarton, J.R. _933458
245	1	0	_aDeforestation and external costs imposed on agriculture in Sudan
260			_aAustralia : _bAustralian Agricultural Economics Society, _c1991.
300			_a14 pages
340			_aPrinted
500			_aTables, graphs, references p. 13-14
520			_aAn important cause of deforestation in arid and semi-arid countries is the overcutting of forests for domestic fuel and agricultural use. This paper constructs a dynamic model of deforestation in Sudan and compares optimally managed forests with common property forests. The optimal management plan was calculated with an optimal control model solved with non-linear programming. The common property plan was calculated with a simulation model. Results show that the optimal management plan maintains the stock of trees whereas the common property plan exhausts the stock of trees. Agricultural yields first increase and then decrease with increasing deforestation. The value of the optimally managed forest was 25% higher than that of the common property forest.
546			_aText in English
591			_aR100ECO|EP|MIC 10790-R|3
650		7	_aDeforestation _2AGROVOC _98100
650		7	_aAgriculture _2AGROVOC _91007
650		7	_aCost analysis _2AGROVOC _922246
650		7	_aForest management _2AGROVOC _912930
651		0	_2AGROVOC _915569 _aSudan
700	1		_aHertzler, G. _933459
700	1		_aHassan, R. M. _9518
711	2		_933460 _aAnnual Conference of the Australian Agricultural Economics Society _n(35th : _d11-14 February, 1991 : _cArmidale, NSW, Australia)
942			_cCPA _2ddc _n0
999			_c1044 _d1044