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Irrigation dams threaten Brazilian biodiversity
Valter M Azevedo-Santos1,2, Philip M Fearnside3, Marlene S Arcifa4
1Universidade Federal do Tocantins (UFT), Programa de Pós-Graduação em Biodiversidade, Ecologia e Conservação, Porto Nacional, CEP 77500-000, Tocantins, Brazil. valter.ecologia@gmail.com.
Proposed changes to Brazil's Forest Code could harm biodiversity. Bills facilitating irrigation dams in protected areas risk increased deforestation and habitat loss, impacting ecosystem services and international trade.
Area of Science:
- Ecology
- Environmental Law
- Conservation Biology
Background:
- Brazil possesses high biodiversity, crucial for ecosystem services.
- Agriculture benefits from ecosystem services but degrades ecosystems, threatening biodiversity.
- Legislative proposals may accelerate biodiversity decline to favor agriculture.
Purpose of the Study:
- Analyze three legislative bills (Bill 1282/2019 and two others) impacting Brazil's Forest Code.
- Discuss the potential consequences of these bills for Brazilian biodiversity.
- Evaluate the broader implications for international agreements.
Main Methods:
- Review of legislative proposals (Bill 1282/2019 and related bills).
- Analysis of potential ecological impacts on biodiversity.
- Assessment of consequences for ecosystem services and international relations.
Main Results:
- Bills aim to ease irrigation dam construction in Permanent Preservation Areas.
- Potential negative impacts include increased deforestation, siltation, and habitat fragmentation.
- Biodiversity loss could jeopardize the Mercosur-European Union trade agreement.
Conclusions:
- The proposed legislative changes pose significant threats to Brazil's biodiversity.
- Approving these bills could lead to irreversible ecological damage.
- Conservation efforts and biodiversity protection are critical for sustainable development and international cooperation.
Related Concept Videos
Responses to Drought and Flooding
Adaptations that Reduce Water Loss
Threats to Biodiversity
Habitat Fragmentation
Biodiversity and Human Values
Design Example: Design of an Irrigation Channel

