Kajian Pemilihan Jenis Tumbuhan Untuk Restorasi Hutan Berdasarkan Beberapa Parameter Fotosintesis

Abstract

Forest restoration is a process of ecosystem conditioning (soil, vegetation, and wildlife) in order to achieve similar
patterns and profiles to previous conditions and status before the ecosystem was disturbed, both in terms of species
composition and structure, and habitat functions. Restoration is a crucial part to maximize the conservation values of
biodiversity and ecosystem functions. Eight different native plant species were assessed in this research while the photosynthetic
parameters studied included the total chlorophyll content, carbohydrate content, CO2 sequestration capacity,
leaf weight, leaf number, leaf area and leaf water content. Spectrophotometer was operated to analyse chlorophyll
content, the Somogyi-Nelson method was used to calculate carbohydrate content, and leaf area was measured
using the leaf area meter. The research results using the principal component analysis showed that each type of the
plant species used for the restoration (2 years old after planting) had different characteristics in terms of photosynthetic
parameters studied. Dacrycarpus imbricatus and Syzygium lineatum both had the highest carbohydrate contents
and the best abilities to absorb CO2. Sloanea sigun, Alstonia scholaris, Manglietia glauca, and Castanopsis argentea had
higher total chlorophyll contents than others, while Altingia excelsa, M. glauca, A. scholaris, and Schima wallichii had
higher water contents. A. scholaris, M. glauca, and S. sigun had heavier leaf weights. In contrast, M. glauca possessed
the widest leaves amongst the species observed.
Keywords: forest restoration, photosynthetic parameters, native species