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EcologyNKK Lab Field Study Report

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Collecting Data
at Damar (Dipterocarp) Agroforest of Krui, Lampung Province, Indonesia



by Eko Prasondita

greengreengreengreengreenI went to Indonesia on the 15th of February 2012 from Kansai Airport (KIXX) Osaka to Soekarno Hatta International Airport Jakarta. Travelling from Saijo to Osaka by Willer Bus took almost 8 hours. I then caught a flight with Air Asia to Jakarta via Kuala Lumpur Malaysia. My flight went smoothly and took time about 7 hours. My study site is in Indonesia and I went to collect data related to my graduate school research at Hiroshima University.

 


Old damar tree in sample plot.


Krui Section Office of Bukit Barisan Selatan National Park (left)
Bukit Barisan Selatan National Park Office(right)

 

greengreengreengreengreenOn the first day in Indonesia, I visited the Ministry of Forestry to complete submitted my arrival report and collect secondary data related to my study in the form of satellite imagery of Landsat ETM 7 for 2011. I collected data in Jakarta for 1 week. Additionally, I prepared correspondences for the field study. After leaving Jakarta, I took primary data in the field with assistance from a Bukit Barisan Selatan National Park officer and around the boundary area of Bukit Barisan Selatan National Park.
The location was determined in advance based on Landsat ETM 7 satellite imagery. I selected a number of plots based on slope category and drew as many as 20 plots to a size of 50 m x 50m, 40 plots for the size of 5m x 5m, and 40 plots for size 1m x 1m. Thus, the total number of plots to equaled 100.

greengreengreengreengreenThe location of research was reached after 16 hours road a trip. First, I visited the Bukit Barisan Selatan National Park office to get a permit. I went there together with the technical staff of Bukit Barisan Selatan National Park and local people surrounding of national park.
The research location can only be reached by walking down the Gunung Kemala River for 3 hour. Additionally, I had to cross the river as many as 13 times due to the winding of the river. My study site is Damar Agroforest belonging to local people area at surrounding the Bukit Barisan Selatan National Park who is implementing an agroforestry system. Local people call the system the Repong Damar (The Damar Agroforest). The Damar Agroforest is a complex agroforestry that is dominated by the damar tree species (Shorea javanica).

greengreengreengreengreenLocal people predominantly harvest resin (the local name is gopal) from damar trees, which is sold to local markets and then exported overseas. Resin of the Damar Mata Kucing (Shorea javanica) is the highest quality in the world. The damar agroforest has existed since ancient times and continues until today. The history and continuity of this agroforest makes for fascinating research thus there is body of research on this agroforest. This area is unique in that damar trees and combine with fruit plant such as duku (Lansium domesticum), durian (Durio zibethinus).


Local people harvest resin (gopal)
in damar agroforest


Measurement of dbh of trees (left)
Our journey to study site by crossing thirteen rivers (right)

 

greengreengreengreengreenData of diameter of breast high (dbh) for trees with diameter at least 30 cm and Shrub with diameter from 5-30 cm was recorded. Moreover, herb/grass was abstracted to estimate wet weight and after that, drying process was undertaken to estimate dry weight. This data will be used to estimate biomass of trees, shrubs, and herbs. Then, it will be correlated by spectral data on Landsat imagery ETM +7 in 2011.
greengreengreengreengreenAfter finishing my data fieldwork, I went back to Bandar Lampung City passing through Bukit Barisan Selatan National Park, which is buffered by damar agroforest. The forest is relatively protected from illegal logging and encroachment and is very interesting for natural observation.
After that, my herb samples were analyzed in the Department of Forest Management Laboratory of Lampung University. Finally, I returned to Jakarta to complete my secondary data and to recapitulate field data. After a successful trip, I return to Japan on the same route as I came.

Measuring herb wet weight and recapping data field

 


Taking photo with Bukit Barisan Selatan Staff and local people