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Nature conservation authority emphasizes the importance of trees and shrubs in agricultural landscapes
Hedgerows are small green islands amidst agricultural land – and they are ecologically indispensable. The lower nature conservation authority of the Groß-Gerau district draws attention to the important role these hedgerows play as stepping stones between biotopes.
Whether along field paths, between pastures and fields or to mark property boundaries – hedgerows not only structure the landscape, but also fulfill crucial functions in nature and climate protection.
Connection between biotopes
The mix of trees, shrubs, and a herbaceous border zone makes hedgerows important components of the network of biotopes as defined in Section 21 of the Federal Nature Conservation Act. As so-called stepping stones, they connect nature reserves and Natura 2000 sites, enabling animal and plant species to spread and exchange genetic material.
Especially in intensively farmed agricultural landscapes, hedgerows make a significant contribution to preserving biodiversity. They provide habitat, food, and shelter for species such as the red-backed shrike, yellowhammer, hedgehog, common toad, and numerous insects – for example, through flowering plants like blackthorn and sloe, which in turn are an important food source for pollinators such as wild bees.
Protection against erosion and climate function
Besides their role in species conservation, hedgerows also contribute to soil stabilization. Their roots protect slopes in particular from erosion. At the same time, they act as windbreaks, reduce evaporation, and provide shade – important functions in times of increasing drought. Hedgerows also enhance the landscape.
Care under protective conditions
For hedgerows to fulfill their functions in the long term, careful and proper maintenance is crucial. The legally mandated protection period for breeding and rearing birds applies between March 1st and September 30th. During this period, no clearing or heavy pruning is permitted.
The nature conservation authority recommends rejuvenating hedgerows in sections over several years to maintain their ecological value. Leaving deadwood in place is also advisable, as it provides habitats for insects, birds, and small mammals.
Hedgerows demonstrate that even small areas can have a significant impact – as habitats, climate buffers, and connecting elements within our cultural landscape. The Groß-Gerau district is therefore committed to preserving and maintaining these valuable structures.
(Gross-Gerau district-Red/PSGG)
