Ideal planting space for merbau (Intsia bijuga) forest plantations in Papua based on distance-dependent competition

Sirami, Elieser Viktor; Marsono, Djoko; Sadono, Ronggo; Imron, Muhammad Ali

doi:10.13057/biodiv/d190630

Cited by 6 publications

(4 citation statements)

References 85 publications

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“…Os índices cujos menores valores representam maior competição sobre a árvore-objetivo exibiram correlação positiva, além terem se associados melhor com os atributos biométricos; o inverso exibiu correlação negativa. Face aos inúmeros índices de competição disponíveis na literatura (STAGE;1973;GLOVER;HOOL, 1979;LORIMER, 1983;TOMÉ;BURKHART, 1989;LHOTKA;LOEWENSTEIN, 2011) e especificidades de formações lenhosas autóctones, sugere-se que a escolha do índice de competição seja baseada em critérios estatísticos, intrínsecos à vegetação, disponibilidade de recursos e laboriosidade da coleta de dados biométricos.…”

Section: Discussionunclassified

“…Apesar dos erros padrões residuais terem sido relativamente altos para a estimativa biométrica por estrato de altura (de 14,61 a 23,31% e 36,60 a 47,48% para as estimativas de DAP e volume, respectivamente), as equações obtidas se mostraram úteis para o entendimento do efeito da competição no crescimento de plantas (Tabelas 3 e 4). Em virtude da complexidade envolvida na representação da competição em florestas naturais (TENZIM et al, 2017;SIRAMI et al, 2018;VERSACE et al, 2019;BIANCHI et al, 2020), a qualidade dos ajustes realizados foi considerada satisfatória.…”

Section: Discussionunclassified

“…As florestas são mosaicos de fases estruturais dinâmicos que fornecem serviços ecossistêmicos aproveitáveis direta ou indiretamente pela sociedade (HILL et al, 2016). O conhecimento da interação competitiva entre árvores é essencial para a compreensão da estruturação de uma formação lenhosa e para a definição de estratégias de conservação e manejo florestal sustentável (SIRAMI et al, 2018).…”

Section: Introductionunclassified

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Índices De Competição Independentes Da Distância Em Um Fragmento De Mata Atlântica

Lafetá,

Santos,

Pimenta

et al. 2023

NAT

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Investigações científicas sobre o comportamento de índices de competição em diferentes estratos de altura são escassas e podem subsidiar o desenvolvimento de planos, manutenção e monitoramento para a recuperação de áreas degradadas e contribuir para o desenvolvimento de futuras pesquisas sobre a dinâmica de crescimento em povoamentos inequiâneos. O objetivo do presente trabalho foi avaliar a influência de índices de competição independentes da distância no comportamento biométrico de árvores em diferentes estratos de altura em um fragmento de Mata Atlântica sob recuperação florestal. O estudo foi conduzido em uma área de 2,53ha, onde se realizou o inventário com intensidade amostral de 15,81%. Calcularam-se seis índices de competição para árvores contidas nos estratos inferior, médio e superior do fragmento. Os índices cujos menores valores representam maior competição sobre a árvore-objetivo exibiram correlação positiva e se associaram melhor com os atributos biométricos. O comportamento de aspectos biométricos em relação à competitividade da árvore-objetivo foi distinto entre estratos de altura. Conclui-se que, para o local de estudo, o índice de IC2 demonstrou flexibilidade para analises sobre relações entre a competitividade e aspectos biométricos em distintos estratos de altura. Aspectos os biométricos lenhosos aumentam assintoticamente com a redução da competição sobre a árvore-objetivo. Palavras-chave: altura de árvores; competitividade; comportamento sigmoidal; relação funcional. Distance-independent competition indices in an Atlantic Forest fragment ABSTRACT: Scientific investigations on the behavior of competition indices in different height strata are scarce and can subsidize the development of plans, maintenance and monitoring for the degraded area recovery and contribute to the development of future research on growth dynamics in uneven stands. This work aimed to evaluate the influence of distance-independent competition indices on the biometric behavior of trees in different height strata within an Atlantic Forest fragment under forest recovery. This study was conducted in an area of 2.53ha, where inventory was carried out with a sampling intensity of 15.81%. Six competition indices were calculated for trees contained in the lower, middle and upper strata of the fragment. Indices whose lower values represent greater competition on the target tree exhibited a positive correlation and had a better association with the biometric attributes. The behavior of biometric aspects regarding the competitiveness of the target tree was different between height strata. It is concluded that, for the study site, IC2 competition index demonstrated flexibility for analyzing relationships between competitiveness and biometric aspects in different height strata. Woody biometrics aspects increase asymptotically with reduced competition over the target tree. Keywords: tree height; competitiveness; sigmoidal behavior; functional relationship.

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Section: Discussionunclassified

Section: Introductionunclassified

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Índices De Competição Independentes Da Distância Em Um Fragmento De Mata Atlântica

Lafetá,

Santos,

Pimenta

et al. 2023

NAT

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“…It was the dominant species used for the rehabilitation covering more than 64% of all of the planted tree species. Planting Sumatran pine for plantation and rehabilitation purposes was not limited to Java and Sulawesi islands only but also covered other regions outside its natural habitat expanding to Sumatera island, i.e., West Sumatera [41], Riau [42], South Sumatera [43], Bengkulu [44], Jambi [45], Lampung [46], Kalimantan Island [47], Bali and Nusa Tenggara Islands [48], Moluccas [49], and also in Papua [50]. The natural and artificial distribution of Sumatran pine in Indonesia can be seen in Figure 1.…”

Section: Current Condition Of Natural and Artificial Sumatran Pine Populationmentioning

confidence: 99%

Reforestation and Sustainable Management of Pinus merkusii Forest Plantation in Indonesia: A Review

Imanuddin¹,

Hidayat²,

Rachmat³

et al. 2020

Forests

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Pinus merkusii Jungh et de Vriese, known as Tusam or Sumatran pine, is the only pine that grows naturally in the south of the Equator with its natural distribution found in Indonesia, the Philippines, Myanmar, Thailand, Laos, Cambodia, and Vietnam. The Sumatran pine is an economically and ecologically important species in Indonesia that covers three native strains, Aceh, Kerinci, and Tapanuli. The resin tapping of the pine has been practiced for hundreds of years while its timber has long been commercially used for various purposes. Although the pine is known as highland species, its adaptability on a wide spectrum environment makes it suitable for various restoration and rehabilitation purposes both in lowland and highland sites. Its high commercial values have also made the species be massively planted in pine plantations outside their natural distribution in Sumatera (i.e., in Java and Sulawesi island). This paper will review the current condition of Sumatran pine and its potential as a restoration and rehabilitation species and delivering its natural and artificial distribution map in Indonesia. In addition, the paper will also show the genetic variability of the species, determine the current innovative practices in silvicultural aspect both at nursery and plantation scales, describe tree improvement program, including its role in agroforestry practices, pine product both timber and non-timber, and its potential resources in relation with climate change mitigation management.

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Typology of native species as the shade tree for merbau (Intsia bijuga) plantations in Papua, Indonesia based on ecological species group

et al. 2018

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Sirami EV, Marsono Dj, Sadono R, Imron MA. 2019. Typology of native species as the shade tree for merbau (Intsia bijuga) plantations in Papua, Indonesia based on ecological species group. Biodiversitas 20: 43-53. Ecological species group is an ecological principle that can be used as a reference in determining the potential native tree species of Papua as the shade trees for merbau in the mixed forest plantations. This research was conducted to identify the potential native trees as the shade for merbau plantation in Papua. The data collection used systematic line technique with hypothetical plot and sampling tree as the plot center. The Dice Index was used to analyze the level of association between merbau and the neighboring trees as well as to serve as a basis for determining ESG and Important Value Index was used to analyze the level of tree dominance. The main potential shade trees consisting of Pometia coriacea Radlk., Lepiniopsis ternatensi Valeton, Spathiostemon javensis Blume, Palaquium amboinense Burck., and Pimelodendron amboinicum Hassk. Whereas complementary and alternative potential shade consisting of Haplolobus lanceolatus H.J.Lam ex Leenh, Haplolobus celebicus H.J.Lam, Horsfieldia laevigata Warb., Horsfieldia irya (Gaertn.)Warb. Prunus costata Kalkman, Sterculia macrophylla Vent., Dysoxylum mollissimum Blume, Pertusadina multifolia (Havil.) Ridsdale, Streblus elongatus (Miq.) Corner and Geijera salicifolia Schott. The main shade trees possessed a main function for rendering shade toward younger merbau in the plantation area. Meanwhile, complementary and alternative shade trees were intended for increasing soil nutrient availability and optimizing microclimate surround merbau seedlings.

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Ideal planting space for merbau (Intsia bijuga) forest plantations in Papua based on distance-dependent competition

Cited by 6 publications

References 85 publications

Índices De Competição Independentes Da Distância Em Um Fragmento De Mata Atlântica

Índices De Competição Independentes Da Distância Em Um Fragmento De Mata Atlântica

Reforestation and Sustainable Management of Pinus merkusii Forest Plantation in Indonesia: A Review

Typology of native species as the shade tree for merbau (Intsia bijuga) plantations in Papua, Indonesia based on ecological species group

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