Study of the Effectiveness of Watershed Operations(Contour_Furrow,Pitting,Ripping,and Seeding) for the storage of Precipitation
2005
Habibzadeh, Ahad | Moghaddam, M. | Sadeghzadeh, E. | Mohseni, Sh
Project of precipitation storage and soil and water conservation have the main role in agricultural sustainable development and conserving the natural resources for present and future generations. This study was conducted to compare different watershed oprations such as pittingr. ripping and contour furrow with use of experimental plot. The study was carried out by random complete blocks with 8 treatments in 3 replicates and 4 properties investigated in these treatments including runoff\} sediment, plant cover and soil moisture. The soile moisture measured by physical method and sampling by clinder and auger from 0- 50 cm depth and drying and weighting. The most moisture contents was shown in plots containing pitting and contore furrow oprations. ln order to measure the sediment and runoff the sampling pits with 160 cm in depth were duge at the end of plots and after briking the 220 liters plastic kegs with cap were put. ( More sediment and runoff was shown in plots without watershed oprations and the best efficiency is related to pitting and contour furrow. Plant cover and forage production in 2 consequent years were investigated and results showed plots containing pitting have the best plant cover specially for profitable forage. Total data were analyzed by using computer packages and the final results indicated in marly , clayey and heavy soils can establish plant cover with furrow and pitting construction and prevent from ronoff and sediment production .
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