Optimum plant density and harvest age for maximizing productivity and minimizing competition in a Calliandra short-rotation-coppice plantation in West Java, Indonesia

Widyati, Enny; Sutiyono,; Darwo,; Mindawati, Nina; Yulianti, Mira; Prameswari, Diana; Abdulah, Lutfy; Yuniarti, Karnita; Baral, Himlal

doi:10.1080/21580103.2022.2039305

Cited by 4 publications

(3 citation statements)

References 36 publications

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“…4). The lack of this difference in the first months is attributed to the fact that during these months, the level of competition between the trees is still too low to produce differences (Widyati et al 2022). Although this study did not determine crown intertwining among trees (the visible evidence that competition begins), it barely started, so competition was low (Li et al 2017).…”

Section: Mortality and Growthmentioning

confidence: 77%

Energy production and its characteristics from four tropical trees species planted in short rotation woody systems in Costa Rica

Tenorio,

Moya,

Murillo

et al. 2023

BioRes

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Short-rotation crop (SRC) systems with woody species have been planted in Costa Rica. However, information about different tree species and spacing is limited. The objective of the present study was to examine biomass production and the physical, energy, and chemical properties of feedstock of four tropical tree species (Cordia alliodora, Dipteryx panamensis, Gmelina arborea, and Tectona grandis) in 34-month-old plants planted at four spacings (0.5×1.0 m, 1.0×1.0 m, 1.0×2.0 m, and 2.0×2.0 m). The highest mortality rate (50%) was found in G. arborea; however, diameter, height, basal area, and biomass production in G. arborea plantations were higher than T. grandis, C. alliodora, and D. panamensis. Spacing effects on diameter, height, basal area, and biomass production were observed in 10-month-olds. Wide spacing presented the highest values in diameter and height, but the highest biomass production was found in the narrow spacing. Also, biomass distribution was different in D. panamensis in relation to other species. Specify gravity, density, and moisture content of biomass showed high variation between species and spacing, but the energy and chemical properties of biomass showed few differences. These results suggest that these four species were uniform in terms of their energy and chemical properties, regardless of the spacing used. Finally, three species (G. arborea, C. alliodora, and T. grandis) presented important potential for use in SRC systems. G. arborea was the species with the highest production but a high mortality rate.

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Section: Mortality and Growthmentioning

confidence: 77%

Energy production and its characteristics from four tropical trees species planted in short rotation woody systems in Costa Rica

Tenorio,

Moya,

Murillo

et al. 2023

BioRes

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“…Currently being developed as energy crops for mass planting are C. calothyrsus and G. sepium which are categorized as wood shrub plant species. Not only they can be planted in drought, acidic, and sandy soil [2], they also grow fast as short rotation coppices with two or three-years cycle and has high survival rate [1,3]. In addition, they have calorific values of 4000-4500 kcal/kg [1,3] that is suitable to be used as co-firing fuel.…”

Section: Introductionmentioning

confidence: 99%

“…Not only they can be planted in drought, acidic, and sandy soil [2], they also grow fast as short rotation coppices with two or three-years cycle and has high survival rate [1,3]. In addition, they have calorific values of 4000-4500 kcal/kg [1,3] that is suitable to be used as co-firing fuel.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Calliandra calothyrsus and Gliricidia sepium as co-firing fuel with consideration of ash-related issues

Putra,

Kuswa,

Prabowo

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Biomass can be utilized as co-firing fuel in existing power plants. Woody biomass such as Calliandra calothyrsus and Gliricidia sepium, which can be planted in degraded land, have short cycle, good survivability, and high energy potency, are potential to be utilized. However, adding biomass to existing power plant fuel may cause ash deposition problems such as slagging, fouling, abrasion, corrosion, and agglomeration. This study investigates the ash-related problems of co-firing C. calothyrsus and G. sepium with different type of coal using theoretical indices. The results show that addition of C. calothyrsus and G. sepium up to 50 wt.% has insignificant effect to the risk of slagging, fouling, abrasion, and agglomeration of co-firing fuel. Since the chlorine content in these biomasses increases the corrosion risk to high, the addition of C. calothyrsus is recommended up to 10 wt.% while G.sepium up to 15 wt.% for co-firing fuel.

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Investigation on combustion characteristics and ash-related issues of Calliandra calothyrsus and Gliricidia sepium using thermogravimetric analysis and drop tube furnace

Putra,

Kuswa,

Prayoga

et al. 2024

Bioresource Technology

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Optimum plant density and harvest age for maximizing productivity and minimizing competition in a Calliandra short-rotation-coppice plantation in West Java, Indonesia

Cited by 4 publications

References 36 publications

Energy production and its characteristics from four tropical trees species planted in short rotation woody systems in Costa Rica

Energy production and its characteristics from four tropical trees species planted in short rotation woody systems in Costa Rica

Utilization of Calliandra calothyrsus and Gliricidia sepium as co-firing fuel with consideration of ash-related issues

Investigation on combustion characteristics and ash-related issues of Calliandra calothyrsus and Gliricidia sepium using thermogravimetric analysis and drop tube furnace

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