Deforestation does not lead to development

ResearchBlogging.orgScience magazine has published a paper that is extremely important for the Brazilian Amazon. Brazilian researchers (IMAZON), in collaboration with researchers from other nations, evaluated the impact of the deforestation in the social and economic development in the affected Amazonian towns. The paper starts with some pretty impressive numbers: this country has 40% of the remaining tropical forests in the world. However, between 1998 and 2008, we took our forest down at a rate of 1,8 million ha/year (almost a third of the world’s tropical forest deforestation), releasing around 250 million tons of carbon every year. There are two patterns in Brazilian deforestation: we take the best wood first then we burn everything to make pastures or to make new crops. We are doing this conversion in a few decades, while it took centuries to other countries to do the same.
The advance of the deforestation in Brazil is justified by its advocates by the increase of the quality of life of the population around the forest areas. That’s it: environmental degradation leading to the increase of quality of life. In this context, the authors of the paper divided 286 Amazonian municipalities in 7 classes divided by when the deforestation took place and its extension. The classes ranged from pre-frontier (intact forest and no sign of the start of the deforestation) to post-frontier (severe deforestation and the shift to other economic activities). They also estimated the Human Development Index (HDI) for each municipality to estimate the development stage of each area. The HDI is the average of three other index: life expectancy, literacy and GDP per capta.



The HDI and its components in each municipality class (from the most preserved, A class, to the most degraded, G class).


As you amy observe, there is a pattern in the HDI and its components. There is a fast increase in the region HDI soon after the start of the deforestation. However, after this first moment of deforestation and resources over exploitation, there is the decrease of this index back to its original legal (there is no statistical difference between the A and G classes). This means that you may have development for a while but it vanishes with the natural resources. The authors of the paper also point out that Brazil’s HDI increased in the studied period but the HDI of A class and G class municipalities decreased.
What is the reason for this pattern? It is possible that the increase of the HDI is the result of the migration of people to the towns with intermediate deforestation levels as people with higher education levels and better financial status would arrive. However, this would not explain the sharp increase in the initial levels of deforestation, when the immigrants are largely poor people looking for a fresh start. An alternative explanation is the construction of infrastructure around the town, like roads and the initial profit with natural resources which allow a better access to services like doctors, etc. However, after a while, the profit levels decrease and the initial benefits are gone.
This shows how wrong the chaotic exploitation frame of the mind is. The whole “We are developing the Amazon region”is a lie! As everything in Brazil, only the richest benefit from the transitory development, accumulation all the profit from the natural resources. The poor are left with nothing. Deforestation do not increase the quality of life of the population that lives around the forest!
This means that it, in a first moment, is urgent to stop this model of deforestation followed by agriculture expansion. Next, we need to start the reforestation of degraded areas and to start investing in a sustainable exploitation of the forest (if such thing is possible). The authors also suggest the investment in carbon sequestration projects, as Brazil has large carbon stocks and a has advanced technologies to track changes in the forest. Once the Brazilian government understands that the forest worths more intact than destroyed, then we might understand what is development.
Rodrigues, A., Ewers, R., Parry, L., Souza, C., Verissimo, A., & Balmford, A. (2009). Boom-and-Bust Development Patterns Across the Amazon Deforestation Frontier Science, 324 (5933), 1435-1437 DOI: 10.1126/science.1174002
This post was translated by Carlos Hotta from the original published at the Brazilian blog DIscutindo Ecologia.

Discussão - 5 comentários

  1. doug l disse:

    Issues of CO2 and measureable economic developement aside, does this take into consideration the prospects for benefit from the potential of agricultural tropical permaculture within an inhabited tropical rainforest? I think intelligent management of that resource is very important, and consider its human and diverse species inventory to be of great value and concern. Considering some modern archaeological thought, that the rainforest might have at one time been a far more productive region when it was more heavily populated in pre-columbian time, due to traditional multi-crop permaculture grown on certain soils (though I don't know how widespread within the context of the remaining rainforest) modified with the inclusion of charcoal, which was presumably intentional and evidently very beneficial in constrast to the depleted or thin soils that I understand predominate most of the rainforest. I wonder what is the Brazilian perspective on itsown emerging understanding of its prehistorical landuse practices. From an outsider they seem to be a lesson to be learned for modern land use practices uniquely suited to those areas.

  2. llewelly disse:

    Thank you for translating this.
    The graphs seem to indicate that the 'ideal' amount of deforestation is between 15-30%.

  3. Breno Alves Guimarães de Souza disse:

    I agree with you, although kwon little about permaculture in pre-columbian time. With I understand well, one conclusion aspect is the sustainable uses for vegtation and animals. Inhabitants should explore resources without exhaust them. But it’s requires
    technology and knowledge (new or old, as you said about pre-columbian agriculture).

  4. Breno Alves Guimarães de Souza disse:

    That’s not the point. This paper shows that the future of municipalities after the deforestation frontier is not good. Municipalities with 15-30% of deforestation are in the middle of a tragic history. The future will be natural resources exhaustion. When the frontier reality goes away, development will do the same.

  5. Akiko disse:

    True, there are pros and cons to cap and trade. There are also people deovnitg a lot of research and time to designing an effective, equitable system. Unfortunately, a lot of other people advocate cap-and-trade simply because it is pro-market, without giving much thought to the details.

Envie seu comentário

Seu e-mail não será divulgado. (*) Campos obrigatórios.

Sobre ScienceBlogs Brasil | Anuncie com ScienceBlogs Brasil | Política de Privacidade | Termos e Condições | Contato

ScienceBlogs por Seed Media Group. Group. ©2006-2011 Seed Media Group LLC. Todos direitos garantidos.

Páginas da Seed Media Group Seed Media Group | ScienceBlogs | SEEDMAGAZINE.COM