East Asia and Pacific

Selecting framework tree species for restoring seasonally dry tropical forests in northern Thailand based on field performance

Background

Framework tree species are indigenous forest tree species, planted to complement and accelerate natural regeneration of forest ecosystems and encourage biodiversity recovery, on degraded sites. This study tests the extent to which 37 native forest tree species might act as framework tree species to accelerate recovery of evergreen, seasonal forest in a degraded upper watershed in Doi Suthep-Pui National Park in northern Thailand.

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Community Based Ecological Mangrove Rehabilitation (CBEMR) in Indonesia

Background

While large-scale wetland/mangrove restoration projects have been successful worldwide efforts in Indonesia have largely failed. This is due to technical issues but also tenure issues. Considering pass projects and attempts, Ecological Mangrove Rehabilitation (EMR) has been identified as a potential best practice for Indonesia.  

Open access copy available

Mangrove reforestation in Vietnam: the effect of sediment physicochemical properties on nutrient cycling

Background

Mangrove forests depend on unique physicochemical properties found in tidal coastal sites. One of the main reasons why mangrove reforestation fails is due to changes in the sediment properties that occurred under deforestation conditions. The iron sulphides common in mangrove sediments are oxidated to sulphuric acid, drastically lowering the sediment pH. Other changes also take place as nutrients leach. This study assesses the effects of pH and redox potential on phosphorus and nitrogen cycling in reforested mangrove stands in southern Vietnam.

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Effect of Nurse Tree Species on Early Growth of Anisoptera marginata Korth. (Dipterocarpaceae) on an Imperata cylindrica (L.) Beauv. Grassland Site in South Kalimantan, Indonesia

background

This study evaluates the survival of Anisoptera marginata, a native dipterocarp species, underplanted in four year old plantations of fast-growing exotics: Acadia crassicarpa, Acacia mangium, Gmelina arborea, Paraserianthes falcataria.

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Experience with Planting Dipterocarps in Peninsular Malaysia

Background

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Forest Transition in Vietnam and Bhutan: Causes and Environmental Impacts

background

The authors evaluate the history of forest transition Vietnam and Bhutan.

Goals & Methods

In order to determine the change in forest cover in Vietnam, the authors collected all available land cover maps, which were then compared to official government records. Using statistical analysis, they then determined the causes of reforestation in the 1990s. For Bhutan, there was no official data analysis. The authords do provide preliminary findings using available data and literature. 

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The Causes of the Reforestation in Vietnam

background

Wood exploitation and agricultural expansion led to large-scale deforestation in Vietnam.  Since the mid-1990s, forest cover in many areas has increased both in the form of natural regeneration and tree plantations. Policies such as the 1993 Land Law offered households rights to forestland and tree planting campaigns such as the Five Million Hectare Reforestation Programme made people responsible for owning and protecting forest land.

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Beyond Basic Needs: Participation and Village Reforestation in Thailand

Background

At present, many federally-sponsored community reforestation projects engage  communities by hiring local labor to establish plantations with fast-growing tree species. This method ignores the importance of local knowledge and local-level accountability that improves the chances of a project's survival.

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Reforestation of an Indonesian Tropical Forest: The Win-Win Approach of a Private Japanese Firm

Background

As one of Japan's largest forestry firms, Sumitomo Forestry Company, Ltd. provides a unique approach to a sector that is increasingly faced with pressures due to population and economic growth. This resource examines on initiative by the firm, the Sebulu experimental forest project in the eastern part of Kalimantan, Indonesia.

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Species-Specific Tree Water Use Characteristics in Reforestation Stands in the Philippines

Background

The need for reforestation is becoming increasingly evident in countries like the Philippines where deforestation has lead to a scarcity of wood and other forest commodities. One concern with reforestation is the reduction in streamflow and groundwater recharge as trees move water from the ground into the atmosphere.

Research Goals & Methods

This study seeks to investigate the sap flux responses and tree water use in two 12-year-old multi-species stands.

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