Komposisi Vegetasi Hutan Sekunder Di Nunuka Bolaang Mongondow Utara

Wahyuni, Nurlita Indah; Kafiar, Yermias

doi:10.20886/jwas.v4i1.2371

Cited by 3 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Hal serupa juga terjadi pada jenis Parapiptadenia rigida di Brazil Tenggara (Souza et al, 2013), Vatica mangachapoi di pulau Hainan (Zhang et al, 2012), dan Shorea robusta di India (Surabhi et al, 2017) yang menunjukkan keragaman dalam populasi yang tinggi. Keragaman ini terjadi disebabkan oleh sebagaian besar pohon sampel berada pada kawasan hutan sekunder yang memiliki populasi jabon putih cukup besar karena sifat pertumbuhan jabon putih sebagai pohon pioner yang secara umum mendominasi areal hutan sekunder (Sudrajat et al, 2014;Wahyuni & Kafiar, 2017;Aththorick et al, 2018). Menurut (Lowe et al, 2018), jenis-jenis pioner umumnya memiliki keragaman yang lebih tinggi dibandingkan dengan jenis-jenis dengan sebaran yang terbatas.…”

Section: Keragaman DI Dalam Populasiunclassified

Morphology and Genetic Diversity of Jabon Putih Seedling from 4 Populations in Sumatra, Nusa Kambangan, Kalimantan, and Sulawesi

Rustam¹,

Sudrajat²

2019

JPKW

View full text Add to dashboard Cite

Jabon putih (Neolamarckia cadamba) merupakan jenis potensial cepat tumbuh yang mempunyai sebaran tumbuh yang luas, diduga berhubungan dengan keragaman genetik yang luas. Tujuan penelitian ini adalah untuk mengkaji keragaman morfologi bibit dan keragaman genetik jabon putih berdasarkan penanda molekular AFLP. Rancangan acak blok dengan 4 ulangan digunakan untuk mengkaji keragaman morfologi bibit pada 31 famili dari 4 populasi (Kapuas, Kampar, Nusa Kambangan, Pomalaa) berdasarkan karakter tinggi, diameter, indek kekokohan, jumlah daun, panjang dan lebar daun jabon putih di persemaian. Analisis AFLP Analysis System I Kit dengan menggunakan sampel daun kering setiap famili digunakan dalam penelitian ini. Karakteristik morfologi bibit jabon putih mempunyai keragaman antar populasi dan famili di dalam populasi Keragaman genetik dalam populasi berdasarkan morfologi bibit memiliki kemiripan dengan hasil analisis AFLP yang menunjukkan populasi Kampar memiliki keragaman yang lebih rendah dibandingkan dengan 3 populasi lainnya. Keragaman genetik tertinggi ditunjukkan pada populasi Kapuas yang diikuti oleh populasi Pomalaa dan Nusa Kambangan. Keragaman antar populasi berdasarkan tingkat differensiasi baik berdasarkan morfologi bibit maupun analisis AFLP menunjukkan nilai yang cukup tinggi. Analisis klaster dan analisis kekerabatan berdasarkan metode UPGMA menunjukkan pola yang mirip dan menempatkan sebagian besar famili dari Kapuas dalam satu klaster yang terpisah dari famili-famili populasi lainnya. Berdasarkan analisis kedekatan genetik tersebut, 26 famili dapat dipertimbangkan sebagai famili-famili potensial untuk pembangunan populasi pemuliaan. Penelitian ini mempunyai implikasi penting untuk pengelolaan sumber daya genetik dan program pemuliaan jabon putih ke depan. ABSTRACTJabon putih (Neolamarckia cadamba) is a widely distributed potential fast-growing species and is thought to be associated with extensive genetic diversity. The aim of the research was to assess the morphological and genetic variation of jabon putih seedling based on AFLP markers. Randomized block design with 4 replications was used to assess seedling morphological variation on 31 families from 4 populations (Kapuas, Kampar, Nusa Kambangan, Pomalaa) based on traits of seedling height, diameter, sturdiness quotient, number of leaves, leaf length, and leaf width at nursery. AFLP Analysis System I Kit by using dry leaf samples from each family was used. Characteristics of jabon putih seedlings had variation among populations and families within population. Genetic variation within population based on morphological traits had the similar trend with result of AFLP analysis. The highest genetic variation was detected in Kapuas population, followed by Pomalaa, Nusa Kambangan, and Kampar populations. Cluster analysis and UPGMA method had 2 cluster and put down most of families from Kapuas in one cluster separated from other families. Based on the genetic similarity analysis, 26 families could be considered as potential families for the establishment of bree...

show abstract

Section: Keragaman DI Dalam Populasiunclassified

Morphology and Genetic Diversity of Jabon Putih Seedling from 4 Populations in Sumatra, Nusa Kambangan, Kalimantan, and Sulawesi

Rustam¹,

Sudrajat²

2019

JPKW

View full text Add to dashboard Cite

show abstract

Tree Species Diversity, Richness and Similarity in Disturbed and Undisturbed Forest of Ketambe Research Station, Southeast Aceh regency

Akram

Pasaribu

Siregar

2019

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Tree species richness in disturbed and undisturbed site of Ketambe Research Station Ketambe, Southeast Aceh regency, Indonesia has been studied from March to May 2018. Research sites were determined using purpossive sampling method. Tree samples were recorded within a plot measuring 400 m2 for each sites with a total of 40 plots. Ecological parameters measured in this study were: Density (D), Relative density (RD), Frequency (F), Relative frequency (RF), Dominance (Do), Relative dominance (RDo), Importance Value Index (IVI), Shannon’s diversity index (H’), Margalefs index (R1), and Evenness (E). Estimation of biomass (B) carbon stock (CS) was conducted using allometric equation. Physico-chemical characteristics measured were: air temperature (°C), soil acidity (pH), light intensity (lx), air humidity (%), total organic N (%), and phosphate quantity (ppm) as secondary data. Our study found 79 tree species belonging to 30 families, 61 species in undisturbed site and 47 species in disturbed site. An important species with the highest Importance Value Index (IVI) was Dysoxylum sp.3 in undisturbed site and Macaranga tanarius in disturbed site. The biodiversity was more diverse in undisturbed site (H’ = 3.70; R1 = 10.93) than disturbed site on the whole study area (H’ = 3.47; R1 = 9.10). The values of evenness (E) varied between 0.66–0.68 among sites. Estimation of tree biomass and carbon stock followed the similar trend with a total of B = 971.299 Mg/ha and CS = 485.649 Mg/ha on the whole study area. The present study revealed that some vital tree species exist in forest area of Ketambe Research Station as carbon sinks along with their high biodiversities from both disturbed and undisturbed regions. The information on tree species diversity may provide a baseline information for conservation of the biodiversity in this area.

show abstract

The ecological and economic values of a 50 years old secondary forest in East Kalimantan, Indonesia

2021

View full text Add to dashboard Cite

Abstract. Karmini, Karyati, Widiati KY. 2021. The ecological and economic values of a 50 years old secondary forest in East Kalimantan, Indonesia. Biodiversitas 22: 4597-4607. Secondary forests in the tropics are often ignored since they are assumed to have low ecological functions while on the other hand the economic values have been reduced. This study aimed to analyze the ecological and economic values of a 50-year secondary forest in East Kalimantan that experienced several various land-use changes. The ecological aspects analyzed were stand structure, floristic composition, and species diversity. Economic aspects include log prices, logging costs, profit margins, and stumpage values. A vegetation survey of woody trees with a diameter at breast height of more than 5 cm was carried out on ten plots measuring 20 m × 20 m each. A total of 437 trees belonging to 38 species, 30 genera, and 19 families were recorded with Moraceae and Euphorbiaceae were the most dominant families with Family Important Value (FIV) of 86.79. The three most dominant species were Macaranga motleyana (IVi of 50.95), Artocarpus elasticus (IVi of 34.41), and Symplocos fasciculata (IVi of 31.46). The trees in the study plot have a diversity index of 1.33, dominance index of 0.07, evenness index of 0.37, and species richness of 6.09. The average logging cost, logs price, lumber price, profit margin, and stumpage value at secondary forest were USD69.43 m-3, USD44.63 m-3, USD100.03 m-3, USD10.30 m-3, and USD28.73 ha-1, respectively. The 50 years old secondary forests in East Kalimantan have biodiversity, especially trees that have economic value, therefore their existence needs to be preserved and their use is carried out by maintaining and increasing biodiversity.

show abstract

Komposisi Vegetasi Hutan Sekunder Di Nunuka Bolaang Mongondow Utara

Cited by 3 publications

References 14 publications

Morphology and Genetic Diversity of Jabon Putih Seedling from 4 Populations in Sumatra, Nusa Kambangan, Kalimantan, and Sulawesi

Morphology and Genetic Diversity of Jabon Putih Seedling from 4 Populations in Sumatra, Nusa Kambangan, Kalimantan, and Sulawesi

Tree Species Diversity, Richness and Similarity in Disturbed and Undisturbed Forest of Ketambe Research Station, Southeast Aceh regency

The ecological and economic values of a 50 years old secondary forest in East Kalimantan, Indonesia

Contact Info

Product

Resources

About