Zasady ekorozwoju doliny Gornej Narwi

• Autorzy: Dembek W , Okruszko H
• Języki publikacji: PL

Abstrakty

EN

The summary of 14 papers contained in the present publication dealing with the Upper Narew valley specifies the basic function of each of the valley’s three distinct natural segments together with its key problems and their possible solution. The key requirement for nature protection in the valley segment I (upstream of Suraż) is continuation of spring flooding to sustain breeding birdlife and appropriate moisture levels in soils sensitive to overdrying. This may be achieved using the Siemianówka retention reservoir. In view of its natural and scenic value the valley segment in question should be granted the status of landscape park, its most valuable sites protected as nature reserves. The most serious threat in valley segment II (Suraż to Żółtki) at present incorporated in the Narew Landscape Park is the decreasing moisture level which has resulted in severe reduction in the number of birdlife. A major problem is the overgrowing of disused marshy meadows by shrub vegetation. Until a series of years with spring snowmelt enables a detailed assessment of causes and extent of dehydration in the valley it is necessary to optimize the operation of the Siemianówka retention reservoir with weirs on the Narew river. It is necessary to consider the feasibility of employing local farmers to eliminate invading bushes enabling them to earn compensation for discontinuation of farming in the undrained sections of the valley. In the valley segment III (downstream of Żółtki) it is suggested to intensify grassland production alongside protecting sites of outstanding nature value.

Słowa kluczowe

PL

doliny rzeczne; dolina Gornej Narwi; ekorozwoj

• Wydawca: -
• Czasopismo: Zeszyty Problemowe Postępów Nauk Rolniczych
• Rocznik: 1996
• Tom: 428
• Opis fizyczny: s.195-201

Twórcy

autor

Dembek W

• Instytut Melioracji i Uzytkow Zielonych, Falenty

autor

Okruszko H

• Instytut Melioracji i Uzytkow Zielonych, Falenty