Results 1 to 10 of about 652 (130)

Field methods for sampling tree height for tropical forest biomass estimation. [PDF]

Methods Ecol Evol, 2018
Abstract Quantifying the relationship between tree diameter and height is a key component of efforts to estimate biomass and carbon stocks in tropical forests. Although substantial site‐to‐site variation in height–diameter allometries has been documented, the time consuming nature of measuring all tree heights in an inventory plot means that most ...
Sullivan MJP, Lewis SL, Hubau W, Qie L, Baker TR, Banin LF, Chave J, Cuni-Sanchez A, Feldpausch TR, Lopez-Gonzalez G, Arets E, Ashton P, Bastin JF, Berry NJ, Bogaert J, Boot R, Brearley FQ, Brienen R, Burslem DFRP, de Canniere C, Chudomelová M, Dančák M, Ewango C, Hédl R, Lloyd J, Makana JR, Malhi Y, Marimon BS, Junior BHM, Metali F, Moore S, Nagy L, Vargas PN, Pendry CA, Ramírez-Angulo H, Reitsma J, Rutishauser E, Salim KA, Sonké B, Sukri RS, Sunderland T, Svátek M, Umunay PM, Martinez RV, Vernimmen RRE, Torre EV, Vleminckx J, Vos V, Phillips OL.   +48 more
europepmc   +2 more sources

Campesinado y nación

Allpanchis, 1998
México y Perú tuvieron puntos de partida muy similares: fueron importantes centros de civilización indígena y de dominación colonial. Con la independencia, ambos atravesaron por un período de medio siglo de desorden político y económico.
Viviane Brachet-Márquez
doaj   +4 more sources

Variation in stem mortality rates determines patterns of above-ground biomass in Amazonian forests: implications for dynamic global vegetation models. [PDF]

Glob Chang Biol, 2016
Abstract Understanding the processes that determine above‐ground biomass (AGB) in Amazonian forests is important for predicting the sensitivity of these ecosystems to environmental change and for designing and evaluating dynamic global vegetation models (DGVMs).
Johnson MO, Galbraith D, Gloor M, De Deurwaerder H, Guimberteau M, Rammig A, Thonicke K, Verbeeck H, von Randow C, Monteagudo A, Phillips OL, Brienen RJ, Feldpausch TR, Lopez Gonzalez G, Fauset S, Quesada CA, Christoffersen B, Ciais P, Sampaio G, Kruijt B, Meir P, Moorcroft P, Zhang K, Alvarez-Davila E, Alves de Oliveira A, Amaral I, Andrade A, Aragao LE, Araujo-Murakami A, Arets EJ, Arroyo L, Aymard GA, Baraloto C, Barroso J, Bonal D, Boot R, Camargo J, Chave J, Cogollo A, Cornejo Valverde F, Lola da Costa AC, Di Fiore A, Ferreira L, Higuchi N, Honorio EN, Killeen TJ, Laurance SG, Laurance WF, Licona J, Lovejoy T, Malhi Y, Marimon B, Marimon BH, Matos DC, Mendoza C, Neill DA, Pardo G, Peña-Claros M, Pitman NC, Poorter L, Prieto A, Ramirez-Angulo H, Roopsind A, Rudas A, Salomao RP, Silveira M, Stropp J, Ter Steege H, Terborgh J, Thomas R, Toledo M, Torres-Lezama A, van der Heijden GM, Vasquez R, Guimarães Vieira IC, Vilanova E, Vos VA, Baker TR.   +77 more
europepmc   +2 more sources

Campesinado y nación

Historia Mexicana El Colegio de México, 1997
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Tulio Halperín Donghi
doaj   +1 more source

El TLC, el campesinado y la iglesia

Revista Espiga, 2007
El documento, dirigido a obispos y presbíteros católicos, razona y documenta las consecuencias que la eventual aprobación del Tratado de Libre Comercio entre las repúblicas centroamericanas, la República Dominicana y los Estados Unidos de América ...
José Luis Vega Carballo, Miguel Picado Gatjens   +1 more
doaj   +3 more sources

Agricultura campesina y política

Estudios Paraguayos, 2022
El presente artículo tiene como tema de discusión la definición de agricultura campesina, el campesinado como sujeto político y el papel de los estados en el apoyo o el impedimento de la reproducción de formas de agricultura campesina, así como la ...
Roni Nicolás Paredes Ramos
doaj   +1 more source

La crisis de la sociedad campesina

Revista Mexicana de Ciencias Políticas y Sociales, 2022
Trataré de sentar aquí las bases para una discusión de la posición del campesinado, de la crisis de este sec­tor, en esta época. Por cierto, existe una crisis del campesinado en Mé­xico, pero esta crisis local o nacional forma parte de una ...
Eric Wolf
doaj   +1 more source

In search of a substitution model for coca in Colombia: Buffalo, cocoa, and coffee in Peasant Reserve Zones

Latin American Policy, Volume 14, Issue 3, Page 388-407, September 2023., 2023
Abstract For years Colombia has been the world's largest coca producer. Its public management of crops for illicit use has swung between eradication, substitution, and, recently legalization. Forced eradication has been shown to be ineffective, and legalization is an incipient option, so the Peace Agreement puts forward substitution as the path to ...
Mª Josep Cascant‐Sempere, Celia Dávila, Susana Vesga   +2 more
wiley   +1 more source

Assessing place‐based identities in the early Middle Ages: a proposal for post‐Roman Iberia

Early Medieval Europe, Volume 31, Issue 1, Page 23-50, February 2023., 2023
Sociological models of place‐based identity can be used to better understand the social dynamics of local communities and how they interact with their surroundings. This paper explores how these theoretical models of belonging to a place, in tandem with communal cognitive maps, can be applied to post‐Roman contexts, taking the Iberian Peninsula in the ...
Javier Martínez Jiménez, Carlos Tejerizo‐García   +1 more
wiley   +1 more source

Diversity in the invasive cacao pathogen Moniliophthora roreri is shaped by agriculture

Plant Pathology, Volume 71, Issue 8, Page 1721-1734, October 2022., 2022
The highest genetic diversity of the cacao pathogen Moniliophthora roreri is in Ecuador and Colombia, while it drastically decreased in recently invaded countries Abstract Frosty pod rot disease of cacao (FPR), caused by the fungus Moniliophthora roreri, has severely impacted the production of cocoa in Latin America since its discovery.
Jorge R. Díaz‐Valderrama, Ricardo Zambrano, Sergio Cedeño‐Amador, Ulises Córdova‐Bermejo, Gianmarco G. Casas, Nilda García‐Zurita, Juan A. J. Sánchez‐Arévalo, Enrique Arévalo‐Gardini, Darío Dávila, Juan Ruiz, Xiomy Pinchi‐Dávila, Zarella R. Quispe‐Chacón, Julio A. Chia‐Wong, Oscar P. Hurtado‐Gonzales, Carlos A. Rodríguez‐Callañaupa, Casto Maldonado‐Fuentes, Eucebio Pérez‐Callizaya, Santos Leiva‐Espinoza, Manuel Oliva‐Cruz, Dylan M. Guevara‐Ruiz, Esperanza Torres‐Rojas, Elizabeth Johnson, Wilbert Phillips‐Mora, M. Catherine Aime   +23 more
wiley   +1 more source