I taught Tourism and the Environment a few years ago but EIA was lacking in much of the academic literature then. Hope it's improved since! Note that I'm more an industry practitioner and editorial person - not faculty.
EIA is part of the evaluation process before a major project is awarded; i.e. the successful bidder/tenderer must undertake certain things. But much depends on the organisation owning/managing the site; like how much they know, how detailed the specs are, assurances and deliverables, etc.
From what I've seen, standards vary. In Singapore, the Mandai Park Holdings project is worth reading as it involves sensitive development of the nature reserve and additions to the existing Zoo and Night Safari area - BirdPark, Banyan Tree resort, etc. See https://www.mandai.com/. Additional measures are required that come under other government agencies, such as Environment, National Parks.
Also read various reports and reviews on Forest City Johor, which is an artificial island built just opposite Mandai, in the Johor Strait.
One key question is the reliability of EIA reports, especially when consultants are appointed by the developer. Sometimes, there could be integrity and objectivity issues, but these are usually discussed in the media - mainstream and social, not academic journals!
l'étude d'impact constitue une loi et une méthode technique, chaque pays en possède. il faut connaitre cette réglementation au niveau de son pays, et suivre les exigences recommandées pour mener l'étude d'impact.