Water Retention in a Small Agricultural Catchment and its Potential Improvement by Design of Water Reservoirs – A Case Study of the Bílý Potok Catchment (Czechia)

European Countryside

Doležal Petr¹  Konečná Jana²  Pochop Michal²  Karásek Petr²  Podhrázská Jana² 

[1] Agroprojekt PSO, s.r.o., Slavíčkova 840/1b, 638 00Brno, Czech Republic;Research Institute for Soil and Water Conservation, Department of Land Use Planning, Lidická 25/27, 602 00Brno, Czech Republic;

关键词: retention reservoirs;    land development plan;    water retention;    drought;    floods;   

DOI  :  10.2478/euco-2018-0001

来源: DOAJ

【 摘 要 】

Water retention in the landscape is discussed in the context of conservation and improvement of both its productive and non-productive functions. We analysed the retention potential of a small agricultural catchment associated with the Bílý potok brook, investigating the possibility to improve its retention capacity and slow down the surface runoff, thus increasing the underground water resources. Method of curve numbers was used for that purposes. From results, it emerged that present maximum water retention in the Bílý potok catchment is 96.2 mm. It could increase by 101.3 mm in case of grassing about 20% arable land threatened by soil erosion. As next possibility to retain water from precipitations in landscape, capacity and transformation effect of reservoirs designed in master plans was analysed. The latest programming tools working in the GIS environment were used to assess the retention capacity of both the catchment surface and the reservoirs. Analysing master plans in the catchment, it was found that 16 designed water reservoirs (from 31) have a good potential to intercept water and transform flood discharges. In the result, priority for building of reservoirs was recommended according to their pertinence and efficiency in the studied catchment. Presented complex approach can be widely implemented, especially for better effectivity and cohesion of landscape planning and land consolidations processes.

【 授权许可】

Unknown