CIFOR-ICRAF s’attaque aux défis et aux opportunités locales tout en apportant des solutions aux problèmes mondiaux concernant les forêts, les paysages, les populations et la planète.

Nous fournissons des preuves et des solutions concrètes pour transformer l’utilisation des terres et la production alimentaire : conserver et restaurer les écosystèmes, répondre aux crises mondiales du climat, de la malnutrition, de la biodiversité et de la désertification. En bref, nous améliorons la vie des populations.

CIFOR-ICRAF publie chaque année plus de 750 publications sur l’agroforesterie, les forêts et le changement climatique, la restauration des paysages, les droits, la politique forestière et bien d’autres sujets encore, et ce dans plusieurs langues. .

CIFOR-ICRAF s’attaque aux défis et aux opportunités locales tout en apportant des solutions aux problèmes mondiaux concernant les forêts, les paysages, les populations et la planète.

Nous fournissons des preuves et des solutions concrètes pour transformer l’utilisation des terres et la production alimentaire : conserver et restaurer les écosystèmes, répondre aux crises mondiales du climat, de la malnutrition, de la biodiversité et de la désertification. En bref, nous améliorons la vie des populations.

CIFOR–ICRAF publishes over 750 publications every year on agroforestry, forests and climate change, landscape restoration, rights, forest policy and much more – in multiple languages.

CIFOR–ICRAF addresses local challenges and opportunities while providing solutions to global problems for forests, landscapes, people and the planet.

We deliver actionable evidence and solutions to transform how land is used and how food is produced: conserving and restoring ecosystems, responding to the global climate, malnutrition, biodiversity and desertification crises. In short, improving people’s lives.

Mapping of smallholder oil palm plantation and development of a growth model

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Smallholder plantation accounts for 39% of total oil palm plantation in Indonesia, which is currently estimated at 12 million ha. Limited information on spatial distribution of smallholder oil palm and the growth of plantation pose a great challenge for providing information in scientific based. Therefore, information on smallholder oil palm plantation are necessary and they will give valuable input for policy maker and related stakeholders. This study is aimed to generate smallholder oil palm distribution map using optical satellite data of SPOT 7 and investigate the backscatter values of ALOS PALSAR-2 with height and age of oil palm in mineral soil and peatland. We mapped 46,756 ha of smallholder plantation or about 18% of total oil palm plantation in district of Kotawaringin Barat, Central Kalimantan province and 14% of which is located on peatland area. From the result, height to age mineral soil has a strong relationship with R2 value 0.80 but weak in peatland with R2 value 0.31. Relationship between height and backscatter in mineral soil has R2 value 0.43 for HH and 0.30 for HV and in peatland 0.28 for HH and 0.15. Relationship between age and backscatter in mineral soil has moderately strong correlation with R2 value 0.55 for HH and 0.37 for HV and in peatland 0.36 for HH and 0.28. In all relationship, independent variables are statistically significant with Significance-F value lower than 0.05. In general, height, age, and backscatter relationship in peatland is lower than in mineral soil. Backscatter value can be useful for studying height and age of smallholder oil palm. Further studies are suggested to involve more potential variables and utilize multi temporal datasets in determining height and age of oil palm trees using backscatter values.
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DOI:
https://doi.org/10.1088/1755-1315/169/1/012074
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