Tham khảo tài liệu 'food production approaches, challenges and tasks part 8', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 122 Food Production - Approaches Challenges and Tasks Brazilian society is still characterized by disempowerment and partial segregation. To a certain extent this segregation is justified by the fact that many of the indigenous peoples need to be protected but overprotection can imply patriarchal thinking and disempowerment. Moreover the weak enforcement of laws and the adjustment of the laws to accommodate undesired conduct which in effect facilitates the destruction of vulnerable biomes implies that agricultural investment and expansion pose serious environmental challenges Deininger and Byerlee 2010 xxix . Nevertheless Brazil has shown impressive achievements in improving productivity in all three agricultural models including the socio-biodiversity emphasis within the traditional farming model and the agroecological emphasis within family farming. Comprehensive policies applying to all three agricultural models has resulted in more efficient use and reuse of resources which is the central characteristics of agroeceology de Wit 1992 see also Special Rapporteur on the right to food 2010a . Such policies however risks being overshadowed by the continuing agricultural colonization both in the Amazon and in other vulnerable biomes like the Atlantic Forest Mata Atlantica and the Cerrado. 6. Acknowledgement The author wants to thank the Research Council Norway for the generous funding for the project Biofuels and human rights 2009-2013 within which a research field trip to Brazil was conducted in March and April 2011. This chapter builds on the information gathered during this field trip and the author wants to express his sincere thanks to all those contributing with their time and insight. A report from the field trip is available upon request. 7. References Alston P. 1984 . International Law and the Human Right to Food In The Right to Food P. Alston K. Tomasevski Eds. pp. 9-68 Martinus Nijhoff Publishers ISBN 90-2473087-2 Dordrecht. Bogdanski A. O. Dubois C. .
