Restoration creation and management of saltmarshes and tida…

Contents

Section 1 Introduction ............................................................................................................. 6

Scope of the document.......................................................................................................7

Who is this document for? ..................................................................................................8

Structure of guidance .........................................................................................................9

Description of salt marshes and intertidal flats....................................................................10

Why and how are they threatened? ...................................................................................11

Importance of salt marsh and intertidal flat restoration ........................................................13

Feeding, roosting and nesting sites for shorebirds..............................................................15

Other sources of information.............................................................................................19

References ...................................................................................................................... 19

Section 2 Planning ................................................................................................................. 26

Guidance on making evidence-based decisions for conservation management ....................27

Guidance on planning coastal restoration and setting targets..............................................34

Section 3 Restoration approaches....................................................................................... 46

Guidance on facilitating tidal exchange to restore/create salt marshes and intertidal flats......47

Guidance on using sediment to restore/create salt marshes and intertidal flats.....................58

Guidance on reprofiling salt marshes and intertidal flats......................................................71

Guidance on restoring or creating salt marsh vegetation.....................................................77

Guidance on managing vegetation on intertidal flats ...........................................................84

Guidance on chemical control of Spartina spp....................................................................91

Guidance on physical control of Spartina spp. .................................................................... 99

Guidance on integrated control of Spartina spp. ............................................................... 106

Section 4 Management approaches for shorebirds ......................................................... 113

Guidance on managing artificial ponds for shorebirds ....................................................... 114

Guidance on creating islands for shorebirds..................................................................... 122

Guidance on managing/clearing vegetation for shorebirds ................................................ 131

Guidance on reducing disturbance of shorebirds .............................................................. 137

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