Diameter growth performance and estimated carbon stock of Shorea spp. at KHDTK Haurbentes, Bogor

Abstract

Shorea leprosula Miq. and Shorea selanica (Lam.) Blume are fast growing plant and they can be used as a rehabilitation plant. Plant adaptability can be seen from the growth in diameter. Furthermore, rehabilitation plants have the potential to store carbon stocks which can support Indonesia's Forestry And Other Land Use (FOLU) Net Sink 2030 program. This study aims to analyze diameter growth and estimate carbon stocks stored in 8-year-old S. leprosula and S. selanica species in unproductive forest area KHDTK Haurbentes, Bogor. Furthermore, the data collection of diameter was conducted by census while carbon stock estimation used allometric equations. The diameter distribution of S. leprosula and S. selanica was normally distributed. The normal diameter distribution is defined as the highest number of frequencies around the mean value. The results of the normality test of S. leprosula and S. selanica have normal diameter distribution data which indicate that these species have good adaptability in unproductive forest areas. Moreover, the incremental growth of S. leprosula diameter is 1.38 cm while the diameter increment of S. selanica is 1.19 cm. The carbon stock of S. leprosula is 4.72 tons/ha while S. selanica is 8.32 tons/ha. S. leprosula and S. selanica have good adaptability. Thus, they can be used as plants to rehabilitate unproductive forests and store potential carbon stocks.

Correlation of Tree Health Productivity Indicators with Tree Carbon Stock Estimation (Case Study of Lampung Mangrove Center)

“…This is one of the factors affecting the amount of carbon stored. According to [22], species with good growth will have high productivity, so that the species is able to grow optimally in open and extreme conditions.…”

“…This is due to the absence of monitoring, special treatment, and maintenance incentives for silviculture techniques for mangrove trees that have been damaged at the research site. According to [22], intensive maintenance on trees can increase productivity growth and tree diameter. According to [23], the older the tree, the more the volume of the tree tends to increase the content of lignin and cellulose.…”