This evidence base will be focused on the effectiveness of the legislation to deliver its intended purpose and its wider impact on the delivery of healthy ecosystems and their services.
Bydd y sylfaen dystiolaeth yn canolbwyntio ar effeithiolrwydd y ddeddfwriaeth o ran cyflawni'r diben a fwriadwyd ar ei chyfer a'i heffaith ehangach o ran darparu ecosystemau iach a'u gwasanaethau.