Our Team

For the execution of the different activities and services, AMBIENTE TIERRA counts with a portfolio of professionals with diverse backgrounds and fields of expertise. AMBIENTE TIERRA is represented and permanently supported by four professionals with vast experience in different fields of natural resource management:

Diego Pérez (President)

Forest Engineer graduated from the Technological Institute of Costa Rica (Instituto Tecnológico de Costa Rica - ITCR) and holding a Ph.D. from the University of Helsinki, Diego Perez  specializes in stand dynamics of tropical forest species, with an  expertise in fast growing and intensive managed forest species. Diego Perez has carried out several studies in the area of plantation forest management that include biomass and carbon quantification, total and merchantable volume equations, wood quality, thinning and pruning programs, competition indices, and stand growth scenarios. His Doctoral Dissertation includes the development of new techniques and tools for the intensive management of Teak (Tectona grandis) plantation forest. At present, Diego Perez assists different forest projects in Central America as the Plantation Technical Advisor, supervising different companies  as an independent consultant. As result of his different research studies, Diego Perez has contributed to the forestry community with different scientific papers published in worldwide-known refereed journals such as Forest Ecology and Management, Journal of Tropical Forest Science, and Silva Fenica.

Some of his latest publications are :

  • Buvaneswaran, C.; George, M.; Perez, D.; Kanninen, M. 2006. Biomass of teak plantations in Tamil Nadu, India and Costa Rica compared. Journal of Tropical Forest Science 18(3): 144-146.
  • Perez, D. 2008. Growth and volume equations developed from stem analysis for Tectona grandis in Costa Rica. Journal of Tropical Forest Science 20(1): 66-75.
  • Pérez, L.D.; Kanninen, M.2005. Stand growth scenarios for Tectona grandis plantations in Costa Rica. Forest Ecology & Management 210: 425-441.
  • Pérez, L.D.; Kanninen, M. 2005. Effect of thinning on stem form and wood characteristics of teak (Tectona grandis) in a humid tropical site in Costa Rica. Silva Fennica 39(2): 217-225.
  • Víquez, E.; Pérez, L.D. 2005. Effect of pruning on tree growth, yield, and wood properties of Tectona grandis plantations in Costa Rica: results of a pruning trial. Silva Fennica 39(3): 381-390.
  • Kanninen, M.; Pérez, L.D.; Montero, M.; Viquez, E. 2004. Intensity and timing of the first thinning of Tectona grandis plantations in Costa Rica: results of a thinning trial. Forest Ecology & Management 203: 89-99.
  • Moya, R.; Pérez, L. D.; Arce, V. 2003. Wood density of Tectona grandis at two plantation spacings in Costa Rica. Journal of Tropical Forest Products 9 (1&2):153-161.
  • Moya, R; Perez, D. 2008. Effect of physical and chemical soil properties on physical wood characteristics of Tectona grandis plantations in Costa Rica. Journal of Tropical Forest Science 20(4):147-155 (2008).
  • Pérez, L.D.; Kanninen, M. 2003. Aboveground biomass of Tectona grandis plantations in Costa Rica. Journal of Tropical Forest Science 15(1):199-213.
  • Heartwood, Sapwood and bark content, and wood dry density of young and mature teak (Tectona grandis) trees grown in Costa Rica. Silva Fennica 37(1) 45-54.
  • Pérez, L.D.; Kanninen, M. 2003. Provisional equations for estimating total and merchantable volume of Tectona grandis trees in Costa Rica. Forests, Trees & Livelihoods 13(4): 345-359.
  • Pérez, L.D.; Kanninen, M.; Ugalde, L.A. 2003. Stand growth scenarios for Bombacopsis quinata in Costa Rica. Forest Ecology and Management 174 (1-3): 345-352.
  • Pérez, L.D.; Víquez, E.; Kanninen, M. 2003. Preliminary pruning program for Tectona grandis plantations in Costa Rica. Journal of Tropical Forest Science 15(4): 557-569.
  • Pérez, L.D.; Kanninen, M.; Matamoros, F.; Fonseca, W.; Chaves, E.  2003. Heartwood, sapwood, and bark content of Bombacopsis quinata in Costa Rica. Journal of Tropical Forest Science 16(3): 318-327.
  • Pérez, L.D.; Kanninen, M. 2002. Wood specific gravity and aboveground biomass of Bombacopsis quinata plantations in Costa Rica. Forest Ecology and Management 165 (1-3): 1-9.

Osvaldo Corella (Vicepresident)

Forest Engineer graduated from the Technological Institute of Costa Rica (Instituto Tecnológico de Costa Rica - ITCR) and with a Master Degree in Tropical Sciences from CATIE Education center (www.catie.ac.cr), expert in Geographic Information System (GIS). Osvaldo Corella counts with a large experience in the management of GIS tools such as ArcView, Erdas Image, ENVI, ArcMap, MapInfo, IDRISI, Surfer, Terramodel, TerraSync y GPS Pathfinder Office.

Read Full Resume