Environmental implications of harvesting lower-value biomass in forests

Vance, Eric D.; Prisley, Stephen P.; Schilling, Erik; Tatum, Vickie L.; Wigley, T. Bently; Lucier, Alan A.; Deusen, Paul C. Van

doi:10.1016/j.foreco.2017.10.023

Cited by 35 publications

(27 citation statements)

References 87 publications

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“…Kayu limbah pemanenan hutan tidak hanya berperan dalam mempertahankan cadangan karbon di hutan (Putz et al 2008;Martin et al 2015;Osone et al 2015), tetapi memiliki peran penting dalam menjaga biodiversitas hutan (Eraja et al 2010;Ranius et al 2018) dan pertumbuhan pohon (Helmisaari et al 2011). Selain itu, kayu limbah pemanenan hutan merupakan ukuran tingkat efisiensi pemanenan hutan (Matangaran et al 2013) dan memiliki potensi sebagai sumber bahan baku kayu energi (Osman et al 2014;Zamora-Cristale & Sessions 2016;Vance et al 2018).…”

Section: Pendahuluanunclassified

Logging Residues of Low Harvest Intensity in Indonesian Forest Concession

Budiaman¹,

Mubarak²,

Lismaya³

2020

JIPI

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ABSTRAKPemanenan hutan produksi alam di Indonesia dilakukan dengan intensitas tinggi sehingga menyebabkan perubahan ketersediaan biomassa hutan. Beberapa penelitian menunjukkan bahwa terdapat korelasi kuat antara intensitas pemanenan hutan dengan pengurangan volume kayu di hutan. Kondisi ini dapat mengganggu kestabilan ekosistem hutan. Studi ini bertujuan untuk menghitung dan mengklasifikasikan limbah tebang pilih dengan intensitas rendah (satu pohon plot -1 ) di izin usaha pemanfaatan hasil hutan kayu-hutan alam (IUPHHK-HA). Penelitian ini dilakukan di dua pengusahaan hutan alam, yaitu di Kalimantan Utara dan Papua Barat. Pengukuran kayu limbah dilakukan di 30 plot lingkaran dinamis dengan jari-jari sebesar 2 kali tinggi pohon yang ditebang. Rata-rata luas plot contoh di Perusahaan A sebesar 2,5 ha plot -1 dan di Papua Barat sebesar 1,6 ha plot -1 . Plot contoh diletakkan secara acak di salah satu petak tebang. Semua kayu limbah penebangan yang memiliki dbh ≥10 cm diukur setelah penebangan. Limbah penebangan diklasifikasikan ke dalam dua asal, yaitu pohon ditebang dan tidak ditebang, dan empat bentuk limbah penebangan, yaitu pohon roboh, batang patah, tunggak, cabang, dan ranting. Intensitas penebangan rendah menghasilkan kayu limbah dengan kisaran 4,985,55 m 3 ha -1 . Hasil penelitian menunjukkan bahwa pohon yang ditebang menghasilkan limbah penebangan (66%) yang lebih besar dibandingkan dengan pohon yang tidak ditebang (34%). Bentuk limbah penebangan yang dihasilkan dari pohon yang ditebang adalah cabang dan ranting, batang patah, dan tunggak. Limbah kayu yang berasal dari pohon yang tidak ditebang didominasi oleh pohon roboh dan diikuti oleh batang patah, cabang, dan ranting. Kata kunci: hutan alam, intensitas penebangan, konservasi hutan, tebang pilih ABSTRACT Forest harvesting of natural-forest production in Indonesia is carried out with a high felling intensity, thus has changed the forest biomass. Several studies have shown a strong correlation between harvesting intensity and the reduction of wood volume in the forest. This condition may disrupt the stability of forest ecosystem. This study aimed to calculate and classificate logging residue of low-harvest intensity (one tree plots -1 ) in Indonesian Forest Concession. The study was conducted in private concessions in North Kalimantan and West Papua. Measurements were made in 30 dynamic circular sample plots with a radius of 2 times the height of the felled tree. The average size in North Kalimantan was 2.5 ha plot -1 and in West Papua was 1.5 ha plot -1 . The sample plots were randomly placed in the cutting compartment. All logging residues with dbh ≥10 cm were measured after felling. The logging residue is classified into felled and unfelled trees and four types of logging residue (fallen tree, broken stem, stump, branches and twigs). The low felling intensity produced logging residue ranging from 4.985.55 m 3 ha -1 . The result indicated that logging residue came from felled trees (66%) was higher than those from unfelled trees (34%). The most commo...

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Section: Pendahuluanunclassified

Logging Residues of Low Harvest Intensity in Indonesian Forest Concession

Budiaman¹,

Mubarak²,

Lismaya³

2020

JIPI

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“…Transport distance is also very important in assessing economic efficiency of using biomass from less valuable forests, or mass thinner than 7 cm [15]. However, for creating any optimization models, the input variables are important: the means of transport available (their capacity, performance, fuel consumption) and the transport options realizable.…”

Section: Resultsmentioning

confidence: 99%

Optimization of Transport Logistics for Forest Biomass

Gejdoš¹,

Gergeľ²,

Jeřábek³

et al. 2018

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“…There has been some success in reducing the negative effects acidic deposition on hardwood species through the addition of calcium. Calcium additions have been shown to increase the amount of exchangeable Ca and Mg in soils affected by acidic deposition, resulting in increases in sugar maple diameter growth and crown vigor (Huggett et al, 2007; (Vance et al, 2018). Although the extent of negative effects of intensive forest harvesting on nutrient availability has been inconsistent across different ecosystems, soils with a low capacity to provide base cations to the system are at higher risk of nutrient limitation from intensive harvesting (Thiffault et al, 2011).…”

Section: Effects Of Chronic Nitrogen and Sulfur Inputs On Forest Healmentioning

confidence: 99%

Long-Term effects of Chronic Additions of Nitrogen, Sulfur and Lime on the Growth and Development of a Central Appalachian Forest

Storm¹

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The central Appalachian region has historically received some of the highest levels of nitrogen and sulfur deposition in the eastern United States. Base poor parent material coupled with future increases in more intensive forest management present a scenario of potential base cation depletion and decreased fertility of central Appalachian forest soils. The Fork Mountain Long Term-Soil Productivity (FM LTSP) site was established in 1996 at the Fernow Experimental Forest (FEF) to document the effects of increased nitrogen (N) and sulfur (S) deposition on a young aggrading forest. I utilized data recorded at multiple points in time in this long-term study to characterize the effects of chronic additions of nitrogen, sulfur, and dolomitic lime on the productivity of the overstory trees of the site. I also setup a framework and calibrated a commonly used forest growth model to project of the effects of the treatments on the trees over the next 40 years. v Table of Contents Abstract ………………………………………………………………………………………….ii Dedication ……………………………………………………………………………………….iii Acknowledgements……………………………………………………………………………...iv Table of Contents ………………………………………………………………………………..v List of Figures…………………………………………………………………………………..vii List of Tables …………………………………………………………………………………..viii Chapter 1. General Introduction ……………………………………………………………….1 Chapter 2. Effects of 21 years of increased nitrogen and sulfur on stand growth and species composition in an aggrading Appalachian hardwood forest. ………………………………...5

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Environmental implications of harvesting lower-value biomass in forests

Cited by 35 publications

References 87 publications

Logging Residues of Low Harvest Intensity in Indonesian Forest Concession

Logging Residues of Low Harvest Intensity in Indonesian Forest Concession

Optimization of Transport Logistics for Forest Biomass

Long-Term effects of Chronic Additions of Nitrogen, Sulfur and Lime on the Growth and Development of a Central Appalachian Forest

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