Details

Autor(en) / Beteiligte

• Susanty, F H
• Abdurachman
• Cahyono, D D N

Titel

Dynamics of basal area increment and carbon value of natural forest stands in response to the El Nino occurrence in East Kalimantan

Ist Teil von

• IOP conference series. Earth and environmental science, 2021-07, Vol.824 (1), p.12027

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2021

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Abstract Climate change will have an impact on ecosystems, both flora and fauna. Forest stands or vegetation will have different resilience. This is indicated by a varied growth response. This study aims to show the dynamics of vegetation increment and carbon value of natural forest stands in response to the occurrence of El Nino. The research was conducted on permanent sample plots of primary mixed Dipterocarps forest in Labanan, East Kalimantan, which was built as many as 12 plots (12 ha) which were monitored along for 30 years (measurement period 1990-2020). The approach to assessing the vegetation response is based on the parameters of the basal area increment level and the carbon value of stands which are divided into aboveground and total. The analysis of the dynamics of the response is arranged in terms of time, with the existence of long post-el Nino drought conditions that occurred in 1997/1998 and 2015 in East Kalimantan. Variations in growth dynamics will occur in species groups based on ecophysiology factors. Assessment of primary forest provides an overview of growth rates based on genetic characteristics of the vegetation composition. The existence of El Nino as a factor in this condition is possible to decrease the density and basal area increment of stand after fourth year. The El Nino effect will reduce the total carbon value of primary forest stands by around 7.7-20.3% from the initial reserve.