TY  - SER
AU  - Stuyt. L.C.P.M.
AU  - Beltran, J. Martinez
AU  - Drierickx, W.
AU  - Stuyt, L.C.P.M.
TI  - Materials for subsurface land drainage systems
SN  - 9251054274
SN  - 0254-5284
PY  - 2005///
CY  - Rome: FAO
KW  - Land drainage systems
N1  - 1 Introduction History. Contemporary drainage materials. Problems with drainage materials. Scope of this publication. 2 Drainage pipes, accessories and auxiliary structures. 3 Envelope materials. Water flow into and inside the drain. The problem of clogging of pipes and envelopes. Guidelines to predict whether an envelope is required. Guidelines for installation and mainteance of drainage materials. Research on drainage materials. Standards for pipes and envelopes
ER  -