نویسندگان
1 عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی یزد
2 کارشناس ارشد سازمان تحقیقات آموزش و ترویج کشاورزی
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Floodwater spreading is an efficient and appropriate method for the optimization of runoff utilization, particularly in arid and semiarid region. Beside the reduction of damage caused by the floodwater, this technique would also be useful in the artificial recharge of groundwater, rangeland rehabilitation and desertification control. This research was conducted on the effects of floodwater spreading on some of the characteristics of vegetation and soil surface parameters. Two key areas were selected within and outside floodwater spreading in the Sarchhan plain. In this study, are investigated the effects of flood water spreading on the quality(regeneration, vitality) and quantity of pasture cover in Sarchahan Flood spreading station at 90 km north of Bandar Abbas. For this purpose two areas were chosen a part of the water spreading as a treatment and a similar areas in terms of vegetation cover and soil that it just not flood as a control. The vegetation cover items were recorded in 60 plats for water spreading area and 12 plats for control by 2×2 m during 4 years. This area is with a poor range condition and negative trend. In this study percentage of vegetation cover, density and forage production of rangeland plants were measured at water spreading and control area. ANOVA test showed based on quantitative variation there is significant differences between percentage cover (P>0.01) in flood spreading and control areas. But there is no significant difference between density, productivity and frequency factors. The effects of flood spreading on increasing procreation freshness of rangeland vegetation cover are apparent first in annual spices then perennial species later with changing in other environmental factors as soil.
کلیدواژهها [English]
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