01383naa a2200217 a 450000100080000000500110000800800410001910000120006024500800007226000090015230000150016152007720017665000160094865000180096465000120098265000110099465300130100565300100101865300120102877301250104013276022002-11-22       1977    bl uuuu     u00u1 u    #d1 aLAL, R.  aA brief review of erosion research in the humid tropics of south East Asia.  c1977  ap. 203-212  aThe problem of soil erosion in the humid region of South East Asia has to be related to land forms, vegetal cover and methods of land cultivation, viz., shifting cultivation, plantation crops, mechanized agriculture, paddy rice  water control ystem, terracing (Plate 27). Soil erosion problems under shifting cultivation, where adequate time is allowed for fertility rejuvenation, are not serious. The soils for paddy cultivation, the most important crop for South East Asia, are also free from the erosion hazard because of their flat topography and location in the toposequence. The soil erosion problem is accelerated when native vegetation is removed in order to introduce large-scale plantations for rubber, coffee and other tree crops. Soil erosion has been ...  aAgricultura  aConservação  aErosão  aManejo  aControle  aSolos  aTropico  tIn: GREENLAND, D.J.; LAL, R. Soil conservation and management in the humid tropics. Chichester: John Wiley & Sons, 1977.