Allertal between Gifhorn (B 4) and Flettmar (district boundary)

	Allertal between Gifhorn (B 4) and Flettmar
	The confluence of the Oker in the Aller for the tired
location	Northwest of Gifhorn , Gifhorn district , Lower Saxony
surface	1,167 ha
Identifier	NSG BR 145
WDPA ID	555588648
Geographical location	52 ° 30 ' N , 10 ° 25' E Coordinates: 52 ° 30 '2 " N , 10 ° 25' 27" E
Setup date	1st of February 2014
administration	NLWKN

The Allertal between Gifhorn (B 4) and Flettmar (district border) is a nature reserve in the Lower Saxony municipality of Müden (Aller) in the municipality of Meinersen and the city of Gifhorn in the Gifhorn district .

General

The nature reserve with the registration number NSG BR 145 is about 1,167 hectares . It is completely part of the 18,030 hectare FFH area "Aller (with Barnbruch), lower Leine, lower Oker". At Gifhorn the nature reserve borders directly on the nature reserves " Fahle Heide, Gifhorner Heide " and " Allertal in the urban area of Gifhorn ", at Münden it also borders on the nature reserve " Okeraue between Meinersen and Müden (Aller) ". The area has been under nature protection since February 1, 2014. The responsible lower nature conservation authority is the district of Gifhorn.

description

The nature reserve is located west of Gifhorn. It includes the Allertal from the B 4 in the west of Gifhorn to the 15 kilometers northwest of the district border of the districts of Gifhorn and Celle bei Flettmar . Furthermore, the northern of the river late-up glacial dune fields of the Most glacial valley included in the protected area.

In the area of the nature reserve, the Aller flows as a sluggishly flowing river due to the low gradient, which was largely straightened in the 19th century and further expanded in the 1960s. The old arms in the Allertal that remain today come from the expansion in the 1960s. The Allertal is predominantly of grassland with individual trees or groups of trees as the remains of a Hartholzaue with typical plant species as alder , ash , white willow , English oak , elm , black cherry , hazel , Blackthorn , hairgrass , reed canary grass , hops , ivy , celandine , Festuca gigantea embossed and reed canary grass . The largely unspoilt banks of the river are often occupied by moist tall herbaceous vegetation. Here are u. a. You can find yellow meadow rue , real meadowsweet , real angelica , water dost , common loosestrife , swamp loosestrife , purple loosestrife , shaggy willowherb and common valerian . The course of the river is accompanied by trees in parts. Some of the grasslands are used intensively. In addition, there are nutrient-rich wet meadows and floodplain to lean, mesophilic grassland. Dry locations are also occasionally used for arable farming.

In many cases, ditches on the edge of the valley can be found that were created to drain the floodplain after flooding. Located at the Talrändern in many cases dunes with pine forest, dry sand heaths with heather and gorse , sand lean grass and oak mixed forests. In the dunes areas Vermoorungen are with quaking and Schlenken well as birch and pine embossed Moorwald with Alt - and deadwood shares embedded. The moored areas are valuable areas for amphibians and dragonflies .

The backwaters of the Aller provide natural pond with well developed water - and silting svegetation with pondweed - and frogbit companies . Constitute the Aller with its diverse sedimentary structure (alternating between sandy, gritty and rough rocky areas) and the Allertal are habitat for bats , vials, including banded Demoiselle , common wedge damsel , green mermaid and blue-winged demoiselle , otter , beaver and various species of fish , including wolffish , mud-whip , bitterling and salmon , which the Aller uses as a walking corridor. Flooding aquatic vegetation with spawning herbs can be found in sunny areas of the Aller. The river, which has been greatly altered by straightening and expansion, must, however, still be developed into FFH habitat type 3260 (“flowing water with flooding aquatic vegetation”) in the area of the nature reserve .

The "Heidesee", located west of Gifhorn in a dune area, is the only biotope of its kind in the nature reserve as a dystrophic still water . The lake is characterized by shallow water zones and has underwater, swinging lawn and bank vegetation.

Web links

Nature reserve "Allertal between Gifhorn (B 4) and Flettmar (district border)" in the database of the Lower Saxony State Office for Water Management, Coastal and Nature Conservation (NLWKN)