Management of ditches in agri-environment schemes (AES) in England (Entry Level Stewardship, Higher Level Stewardship, Environmentally Sensitive Areas, Countryside Stewardship Scheme [38]) and those not in AES.
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Data in square brackets beneath are ditches from sites where land managers had both ditches that were managed under AES and those managed outside of AES.
创建时间：
2015-12-03
