Growth Model of Remmant Stands in Selectively Logged Forest, Papua

Kuswandi, Relawan

doi:10.20886/jpth.2017.11.1.45-56

Cited by 2 publications

(1 citation statement)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tree species influence the density or sparseness of a stand in a plot. Trees with tall stands with relatively large trunk diameters will cause space competition between individuals, so trees with large diameters will have low density [36].…”

Section: Mangrove Densitymentioning

confidence: 99%

Community Structure and Health Status of Mangrove Ecosystem in Anambas Islands Marine Tourism Park, Indonesia

Sinaga,

Andrito,

Roni

et al. 2023

BIO Web Conf.

View full text Add to dashboard Cite

Mangroves are one of the coastal ecosystems that can adapt to tidal areas with highly saline environments. This community plays a crucial role in ecological and economic functions, such as prevention of abrasion and seawater intrusion, providing habitat for biotas, nutrient recirculation, carbon sinking and storage, and mangrove educational tourism. The climatic changes and anthropogenic activities affect the mangrove ecosystem and thus need protection and conservation. The novelty of this research is that it is conducted in a marine protected area and was carried out at several stations consisting of zones such as the core zone, utilization, and others. This research does provide scientific literation about the community structure and health index of the mangrove ecosystem in the Anambas Islands as one of the first steps for ecosystem protection and management. This study was conducted at twelve stations using the squared line transect (10x10 m; 5x5 m; 1x1 m) to calculate vegetation density, and hemispherical photography method to calculate the percentage of canopy cover. The results showed that nine mangrove species were found at the study site: Rhizophora mucronata, Rhizophora apiculata, Bruguiera gymnorhiza, Xylocarpus granatum, Ceriops tagal, Rhizophora stylosa, Rhizophora lamarckii, Avicennia marina, and Aegiceras floridum. The status of mangrove ecosystem in Anambas Islands is categorized as good and dense condition with a percentage of canopy cover of 85.18% and a density of 2797 ind/ha. The result shows that management of this coastal ecosystem has been carried out well and can develop other potential to support the area’s conservation function.

show abstract

Section: Mangrove Densitymentioning

confidence: 99%

Community Structure and Health Status of Mangrove Ecosystem in Anambas Islands Marine Tourism Park, Indonesia

Sinaga,

Andrito,

Roni

et al. 2023

BIO Web Conf.

View full text Add to dashboard Cite

show abstract

Dynamics of vegetation structure and composition within early regeneration forest in the Danau Bangko Protected Area, Jambi, Indonesia

Sadili

Priatna

Sutanto

2021

InJAST

View full text Add to dashboard Cite

An analysis of the growth dynamics of a 1-ha (100 m x 100 m) permanent plot was carried out in the Danau Bangko Protected Area (DBPA) in March 2020. DBPA is part of the industrial plantation forest concession of PT Rimba Hutani Mas (PT RHM) in Jambi Province. The study aims to determine the dynamics of vegetation structure and composition between 2018 and 2020 in early regeneration forest. All trees tagged in 2018 were remeasured in 2020. Trees that had not been tagged previously but were 10 cm in diameter at breast height (DBH) were identified as a new recruit and tagged with a new number. Observations and data analysis were carried out on three stages of growth phases, namely in the tree phase ( 10 cm DBH), sapling phase (10 cm DBH), and seedling phase (height 1.5 m). The results showed that the number of species, genera, and families within the tree and sapling phases were high, but were low in the seedling phase. The dominant species in the tree phase in 2018, Alseodaphne bancana, had been replaced by Archidendron bubalinum in 2020, whereas the dominant species in the sapling phase (Rothmania sp.) and seedling phase (Aporusa microsphaera) remained the same from 2018 to 2020 . Mortality rates in all growth phases (tree, sapling and seedling) together is 4.67%. Recruitment into the tree phase from 2018 to 2020 was 2.67%, consisting of eight species, eight genera, and seven families. Within one hectare permanent plot, all members of each tree species were distributed randomly. The vertical structure of the forest area is dominated by stratum C (4-20 m height). The results of hypothesis testing for each phase (tree, sapling, seedling) were different, however overall the results showed that the plot structure and composition had changed. Studi dinamika hutan dilakukan di Kawasan Lindung Danau Bangko (KLDB) pada Maret 2020 dengan menggunakan pendekatan plot permanen seluas satu hektar (100 m x 100 m). KLDB merupakan bagian dari konsesi hutan tanaman industri PT Rimba Hutani Mas (PT RHM) di Provinsi Jambi. Penelitian ini bertujuan untuk mengetahui dinamika struktur dan komposisi vegetasi antara pengukuran tahun 2018 dan 2020, khususnya pada areal dengan tutupan Belukar Tua (BT). Diameter semua pohon yang telah diberi tanda nomor pada tahun 2018 diukur kembali. Pohon yang belum diberi tanda sebelumnya tetapi diameternya 10 cm setinggi dada (DBH) ditetapkan sebagai rekrutmen baru dan diberi tanda dengan nomor baru. Pengamatan dan analisis data dilakukan terhadap tiga tahap tahap pertumbuhan, yaitu tingkat pohon (10 cm DBH), tingkat pancang (10 cm DBH), dan tingkat semai (tinggi 1,5 m). Hasil penelitian menunjukkan bahwa jumlah spesies, jumlah marga, dan jumlah famili pada tingkat pohon dan pancang tinggi, sedangkan pada tingkat semai rendah. Jenis dominan pada tingkat pohon pada tahun 2018 adalah Alseodaphne bancana telah digantikan oleh Archidendron bubalinum pada tahun 2020, sedangkan pada tingkat pancang (Rothmania sp) dan tingkat semai (Aporusa microsphaera) merupakan jenis yang dominan baik pada tahun 2018 maupun pada tahun 2020. Angka kematian pada semua tahapan pertumbuhan bervariasi dengan rata-rata 4,67%. Rekrutmen di tingkat pohon 2,67% yang terdiri dari 8 spesies, 8 marga, dan 7 famili. Secara keseluruhan, semua spesies tersebar secara acak. Tinggi tajuk pohon didominasi oleh stratum C (tinggi 4 m - 20 m). Hasil pengujian hipotesis pada setiap tingkatan (pohon, pancang, semai) berbeda, namun hasil penggabungan semua data menunjukkan bahwa telah terjadi dinamika.

show abstract

Growth Model of Remmant Stands in Selectively Logged Forest, Papua

Cited by 2 publications

References 29 publications

Community Structure and Health Status of Mangrove Ecosystem in Anambas Islands Marine Tourism Park, Indonesia

Community Structure and Health Status of Mangrove Ecosystem in Anambas Islands Marine Tourism Park, Indonesia

Dynamics of vegetation structure and composition within early regeneration forest in the Danau Bangko Protected Area, Jambi, Indonesia

Contact Info

Product

Resources

About