![]() ![]() The Leopold matrix is a simple method that allows a first holistic approach to the definition of possible environmental impacts. In the environmental laws of the world, environmental impact studies are required to approve projects of various kinds, such as the construction of roads, urban planning, industrial plants, mining, oil, or any activity likely to affect the environment. This method is useful as it is a checklist that uses qualitative information on cause and effect relationships. The Leopold matrix is used to assess the possible environmental impact of project execution and was initially developed for mining projects. ![]() Since its creation, it has been applied in numerous environmental impact studies in various fields such as mining, construction, aquaculture and agriculture. On the other hand, this method only considers primary impacts of linear interaction, not complex interactions between actions, environmental factors or secondary repercussions. The main disadvantage is the subjective burden on the researcher's decisions when assigning orders of magnitude and importance. ![]() Source: CalapitoĪmong its main advantages are being a simple method to implement, low cost and applicable to all types of projects. This matrix method of evaluation was proposed in 1971 by Luna Leopold in collaboration with other North American researchers.Įnvironmental impact of an industrial complex in Huelva, Spain. The Leopold matrix is widely used as a qualitative evaluation method and allows to assign a character to the impact (positive or negative). This matrix systematizes the relationship between the actions to be implemented in the execution of a project and their possible effect on environmental factors. The Leopold matrix is a double-entry table of cause-effect relationships used in environmental impact assessment. ![]()
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