Necromass in forests of Madre de Dios, Peru: a comparison between terra firme and lowland forests

Stocks of dead wood or necromass represent an important portion of biomass and nutrients in tropical forests. The objectives of this study were: 1) to evaluate and compare the necromass of "terra firme" and lowlands forests, (2) to study the relationship between necromass, above-ground biomass and wood density, and (3) to estimate the necromass of the department of Madre de Dios, Peru. Stocks of necromass and above-ground biomass were estimated at three different locations using permanent plots and line intercept transects. The average volume of necromass for the three sites was 72.9 m3 ha-1 with an average weight varying between 24.8 and 30.7 Mg ha-1, depending on the estimations of dead wood density used for the calculations. Terra firme forests had significantly higher stocks of necromass than lowland forests. The amount of necromass was 11% of the total above-ground biomass in Madre de Dios forests. The total stock of carbon stored in dead wood for the entire department of Madre de Dios was estimated to be approximately 100 mega tonnes of carbon. This is ten times more than the annual fossil fuel emissions of Peru between 2000 and 2008. The substantial stocks of necromass emphasize the importance of these types of field studies, considering that this component of tropical forest carbon cannot be detected using other methods such as satellite remote sensing

Necromass in forests of Madre de Dios, Peru: A comparison between terra firme and lowland forests

This is the final version of the article. Available from Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas via the DOI in this record.Stocks of dead wood or necromass represent an important portion of biomass and nutrients in tropical forests. The objectives of this study were: 1) to evaluate and compare the necromass of “terra firme” and lowlands forests, (2) to study the relationship between necromass, above-ground biomass and wood density, and (3) to estimate the necromass of the department of Madre de Dios, Peru. Stocks of necromass and above-ground biomass were estimated at three different locations using permanent plots and line intercept transects. The average volume of necromass for the three sites was 72.9 m3 ha-1 with an average weight varying between 24.8 and 30.7 Mg ha-1, depending on the estimations of dead wood density used for the calculations. Terra firme forests had significantly higher stocks of necromass than lowland forests. The amount of necromass was 11% of the total above-ground biomass in Madre de Dios forests. The total stock of carbon stored in dead wood for the entire department of Madre de Dios was estimated to be approximately 100 mega tonnes of carbon. This is ten times more than the annual fossil fuel emissions of Peru between 2000 and 2008. The substantial stocks of necromass emphasize the importance of these types of field studies, considering that this component of tropical forest carbon cannot be detected using other methods such as satellite remote sensing

A brief history of the reception of sartre in Argentina

This chapter is a brief reconstruction of the reception of Jean-Paul Sartre’s work and thought in Argentina from 1930 to 1970. It shows the French writer and philosopher’s early and crucial role in the intellectual history of Argentina by displaying the major milestones of said process. Firstly, it deals with the process of the translation of several of Sartre’s short stories, articles and novels accomplished by literary journal Sur and publishing house Losada. Secondly, it goes over the rigorous academic studies of Being and Nothingness carried out during the 1950s by some members of the so-called ‘existentialist generation’ or ‘generation of 1925’ in the history of Argentinian philosophy, such as Carlos Astrada, Vicente Fatone, Miguel Ángel and Rafael Virasoro. Thirdly, it analyses the influence of Sartre and his magazine Les Temps modernes on the New Argentinian Left in the late 1950s and the 1960s, especially on the young intellectuals who were part of the magazine Contorno. Then, it addresses the impact of Sartre’s Marxist texts published in the 1960s in the philosophical and political debates between members of the New Left. Finally, it explains the decline of Sartre as an intellectual beacon in Argentina due to the rise of rival schools of thought (structuralism in particular), the deterioration of Sartre’s health and the beginning of political persecution and cultural censorship in Argentina because of the imposition of military dictatorships.Fil: Savignano, Alan Patricio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin