000			03271naa a22005537a 4500
003			CR-SiIICA
005			20230430063520.0
006			a|||||r|||| 00| 0
007			ta
008			150101e cr |||||r|||| 00| | spa d
040			_cCR-SiIICA
041			_aspa _beng
090			_aIICA-P10 35
100			_943259 _aAppan, A.
110			_961 _aIICA, México, D.F. (México)
110			_918061 _aSociedad Mexicana de la Ciencia del Suelo, México, D.F. (México)
110			_aColegio de Postgraduados en Ciencias Agrícolas (COLPOS) _cMéxico D.F., México _95450
111			_a4. Reunión Nacional sobre Sistemas de Captación de Lluvia _cTorreón, Coah. (México) _d5-9 Oct 1997
245			_aCollection of runoff in urbanized catchments for augmenting storage in conventional water impoundment schemes
245			_aDocumentos de la reunión
260			_aMéxico, D.F. (México) _c1997
270			_a*CIDIA, San José (Costa Rica)
300			_ap. 9-17
520			_aLimited land and competing demands for its use from an ever-increasing industrial sector has led to the maximization of land utilization in Singapore. Currently almost half the land area of 631 squares kilometers is being used as water catchment. This includes some urbanized areas where there is intense high-rise buildings, light industries and paved areas. The main ojectives of this paper are to highlight the water abstraction systems existing in one of the projects where urban storm runoffs are divertes to storage ponds after which the water is pumped/gravited to the impounding reservoir which receives surface runoff from less urbanized areas. The waters entering these ponds are closely monitored and seasons ensure that only quality levels that are acceptable are directed to the storage ponds followed by selective onward transmission. These collection systems, which have been in existence from 1985, are operating quite successfully. Special systems were designed to prevent the ingress of rubbish and to accentuate sedimentation. The quality of the raw water obtained is comparable to that from a conventional protected catchment. It can be concluded that, with proper management including improved water quality monitoring systems, urban storm runoff can be sucessfully collected and stored as a raw water that can be transferred to an impounding reservoir to augment the storage volume. (MV)
650			_9164646 _aSINGAPUR
650			_9167870 _aUTILIZACION DE LA TIERRA
650			_9167815 _aUSO DEL AGUA
650			_9139358 _aCAPTACION DE AGUAS
650			_9138992 _aCALIDAD DEL AGUA
650		0	_iSINGAPORE _aAGRICULTURA _94
650		0	_iLAND USE _aAGRICULTURA _94
650		0	_iWATER USE _aAGRICULTURA _94
650		0	_iWATER HARVESTING _aAGRICULTURA _94
650		0	_iWATER QUALITY _aAGRICULTURA _94
650		0	_fSINGAPOUR _aAGRICULTURA _94
650		0	_fUTILISATION DES TERRES _aAGRICULTURA _94
650		0	_fUTILISATION DE L'EAU _aAGRICULTURA _94
650		0	_fCAPTAGE D'EAU _aAGRICULTURA _94
650		0	_fQUALITE DE L'EAU _aAGRICULTURA _94
901			_b26364
904			_aIICA
905			_aC
907			_a*CIDIA, San José (Costa Rica)
908			_aB
909			_aAMS
912			_aeng
942			_cSER
942			_cIMP
999			_c20869 _d20869