Growth, Yield and Survivability

Mixed-Species Plantings in Regreening the Bare Hills: Tropical Reforestation in the Asia-Pacific Region

background

This chapter reviews the use of mixed plantations for the goal of reforestation. Mixed plantantions are a more efficient use of resources, pest resistance, and economic and ecological resilience. When establishing a new tropical reforestation program, if unaware of site conditions (and what species to choose), mixed plantations can provide greater insurance. Mixed plantations are more expensive to establish but may provide insurance against volatile markets.

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Direct Seeding of Forest Trees in Grassland Communities of Carranglan, Luzon Island

background

This study concerns the survival of 12 native pioneer species and one exotic species when directly sown into grasslands (Themeda triandra and Imperata cylindrica grasses). They were monitored for 16 weeks . The Authors note that direct seeding studies are important because direct seeding is cheaper and faster than nursery propagation.

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Domestication of Dacryodes edulis: State-of-the-art

Background

This article provides an overview of the work being done to domesticate Dactryodes edulis, a fruit tree widespread to the humid lowlands of Central Africa. It focuses on a program in Cameroon coordinated by ICRAF that is based on a participatory approach of domesitcating D. edulis. 

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Philippine Resins, Gums, Seed Oils, and Essential Oils

background

This bulletin is a compendium of plant species containing exudate or oils that might be commercially exploited. The book also describes the difficulty posed by high species-diversity for economically feasible resin/oil extraction.

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Annual report of the director of forestry of the Philippine Islands for the period 1907-1913

background

This report contains a number of sections relevant to early reforestation activities in the Philippines, including research on succession pathways, restoration experiments on degraded lands, tree nursery operations, and native species.

conclusion & takeaways

This report provides the rare opportunity to look at the history of forestry and ecological activities in the tropics. These activities and projects can now be analyzed in the full context of the past 100 years, wherein the arcs of their success, failure, and learnings can be more fully understood. 

 

 

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A Preliminary Working Plan for the Public Forest Tract of the Mindoro Lumber and Logging Company, Bongabon, Mindoro, Philippine Islands

Summary

This is a Bureau of Forestry management plan for a 20-year concession held by the Mindoro Lumber and Logging Company. The document provides site description, descriptions of different forest types, stand types, and tree species, yield tables for different forest types, brief financial analysis, and description of minor forest products. (wood properties, growth habit, etc)

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Recuperación estructural en bosques sucesionales andinos de Porce, Antioquia, Colombia (Structural recuperation in secondary successional Andean forests in Porce, Antioquia, Colombia)

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Antecedentes

Durante décadas los bosques de la región de Porce (Antioquia, Colombia) han sido talados y quemados para establecer fincas ganaderas y, en menor proporción, agricultura. Este tipo de prácticas pudieron ser decisivas para el proceso sucesional del sitio, ya que la degradación producida en el suelo pudo afectar las características estructurales de la vegetación secundaria establecida.

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Philippine Dipterocarp Forests

  • This study provides a detailed description of Philippine dipterocarp forests, including details on climatic conditions and composition in the first pages. Page 430 has a table of natural stand regeneration studies of a range of plots (natural and cut over), listing seedling numbers and size class distribution of 5 species in “virgin Negros rainforest” (Table 3); 7-10 species of Bataan are listed on p. 433-437 (Table V-VII), 6 species in Laguna are listed on p. 438-441 (Table VIII-IX), and multiple species of Mt Maquiling are listed on p. 444-450 (Table X-XII).
  • Succession pathways on cleared land are described starting on p. 451.
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Annual report of the director of forestry of the Philippine Islands for the period 1915-1924

background

This report contains a number of sections relevant to early reforestation activities in the Philippines, including research on succession pathways, restoration experiments on degraded lands, tree nursery operations, and native species.

Open access copy available

Reforestation in the Philippines, Proceedings from the Fourth Pacific Science Congress, Java

  • This Bureau of Forestry authored document describes reforestation efforts to recover areas degraded by shifting agriculture. A forest nursery was established in 1910 to determine best forest tree species for “artificial reforestation of cogon lands” and in areas of “second growth of no commercial importance”- 600 species were experimented with.
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