Journal of Hydrology New Zealand. Vol. 20 No. 1 (1981). 

 - Napier : New Zealand Hydrological Society.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Keynote Address, Theme 3 / 4, Papers, Reviews and Summary Contents for 1981 in Vol. 20 No. 1. 
<br/><br/>New directions in assessing human impact on erosion in steep lands / F. J. Swanson. Management of steep land erosion : an overview / Robert R. Ziemer. Soil strength and microclimate in the distribution of shallow landslides / R. C. Owen. Sediment delivery ratio as used in the computation of watershed sediment yield / Mou Jinze and Meng Qingmei. Sediment load and channel characteristics in subarctic upland catchments / Charles W. Slaughter and Charles M. Collins. Application of sediment budget studies to the evaluation of logging road impact / L. M. Read, T. Dunne and C. J. Caderholm. Management of steep lands impacts by landslide hazard zonation and risk evaluation / B. G. Hicks and R. D. Smith. Volcanic debris control applied in Indonesia / Ir. Djoko Legowo. Theme 1 - Methods for assessing slope erosion and non-channel sediment sources in upland regions. Theme 2 - Stream dynamics and morphology : processes, capacity and supply. Theme 3 - Human impact on erosion and sediment yield in steep lands. Theme 4 - Impact and management of steep lands erosion.