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  • CIFOR-ICRAF
    Check out cifor-icraf.org!

    The Center for International Forestry Research (CIFOR and World Agroforestry (ICRAF) joined forces in 2019, leveraging a combined 65 years’ experience in research on the role of forests and trees in solving critical global challenges.

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    World Agroforestry (ICRAF) is a centre of science and development excellence that harnesses the benefits of trees for people and the environment. Leveraging the world’s largest repository of agroforestry science and information, we develop knowledge practices, from farmers’ fields to the global sphere, to ensure food security and environmental sustainability.

     

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    Driven by our vision of a world where all people have viable livelihoods supported by healthy and productive landscapes, our global team of science, research, development, institutional and resource professionals seeks to better combine the science of discovery with the science of delivery. To realize this vision, we focus on four key interacting themes: By combining more productive trees with more resilient and profitable agricultural systems and a sounder understanding of the health of the soil, land and people that is part of ‘greener’, better governed landscapes, we offer valuable and timely knowledge products and services to the global community as it tackles the major challenges of the Anthropocene. These include dealing with climate change; low soil carbon; widespread forest, tree and soil loss leading to degradation; poverty; demographic upheavals and conflict; and securing equitable futures for all with a special focus on women and children.

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    A climate change atlas for Africa of tree species prioritized for forest landscape…

    Our Climate Change Atlas for African trees shows how alterations in environmental condi

    Read More
    The Resources for Tree Planting Platform

    The Resources for Tree Planting Platform explains how to go about sourcing good quality

    Read More
    Agroforestry Species Switchboard: a synthesis of information sources to support tree research and development activities. Version 3.0
    Agroforestry Species Switchboard: a synthesis of information sources to support tree…
    Suggested citation: Kindt R, John I, Dawson IK, Graudal L, Lillesø J-P B, Ordonez J, Jamnadass R. 2022. Agroforestry Species Switchboard: a synthesis of information sources to…
    Read More

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Struktur komunitas pohon pada tipe lahan yang dominan di desa Lubuk Beringin, Kabupaten Bungo, Jambi
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Year
2009

Authors
Ningsih H
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  • Forests exploitation
Region
Southeast Asia
Populasi manusia yang terus me ningkat memengaruhi aktivitas pemanfaatan lahan hutan. Jutaan hektar lahan hutan sudah dialih gunakan menjadi berbagai tipe lahan yang dapat dilihat se bagai mosaik dalam suatu bentang alam. Desa Lubuk Beringin, Kabupaten Bungo, Jambi, memiliki beragam tipe lahan yang didominasi oleh lahan agroforest da n belukar dengan umur yang bervariasi, sebagai hasil dari pemanfaatan dengan sistem perladangan berpindah. Letak Lubuk Beringin yang berdekatan dengan Taman Nasional Kerinci Seblat (TNKS) dapat dijadikan sebagai koridor habitat hewan dan tumbuhan yang berasal dari TNKS, bila setiap tipe lahan yang ada di Lubuk Beringin memiliki peranan yang penting dalam menampung komponen-kom ponen yang berasal dari hutan. Penelitian ini bertujuan untuk mengkaji da n membandingkan struktur komunitas pohon, di setiap tipe lahan yang dominan di Desa Lubuk Beringin. Penelitian dilakukan pada enam tapak, yaitu ta pak belukar berumur 10 tahun (BEL-10), belukar 30 tahun (BEL-30), agroforest kare t 13 tahun (AK-13), agroforest karet 30 tahun (AK-30), agroforest karet 60 ta hun (AK-60), dan hutan alami sebagai pembanding ( reference area ). Parameter yang digunakan dalam penelitian ini adalah dominansi jenis, kekayaan dan kelimpahan jenis, keanekaragaman Shannon-Wienner, dan tingkat kesamaan komunitas menggunakan indeks Bray- Curtis. Untuk setiap tapak, analisis vege tasi dilakukan di tig a plot. Pengamatan analisis vegetasi hanya dilakukan pada bentuk hi dup pohon yang dikelompokkan berdasarkan kelompok umur, yaitu pancang (DBH ≤ 10cm), tiang (10cm<DBH<30cm), pohon (DBH ≥ 30cm). Kelompok pohon diamati dengan plot berukuran 20x100 m 2 . Di dalam plot utama terdapat dua sub plot yang berukuran 40x5 m 2 untuk tiang dan berukuran 40x1 m 2 untuk kelompok pancang. Hasil dari analisis vegetasi menunjukkan bahwa dominan si jenis dipengaruhi oleh tipe lahan dan umur lahan. Lahan agroforest memiliki dominansi karet yang tinggi, namun tingkat dominansi ini menurun seiring de ngan pertambahan umur pemanfaatan lahan. Di lahan belukar muda berumur 10 ta hun telah dijumpai je nis suksesi lanjut ( Rinorea anguifera ) yang mendominasi tapak, se dangkan di tapak belukar dan agroforest berumur lebih dari 30 tahun, kelompok pohon didominasi oleh jenis suksesi lanjut ( Shorea multiflora, Eugenia papilosa, dan Litsea firma ), seperti halnya di hutan. Berdasarkan inde ks keanekaragaman Shannon-Wiener, keanekaragaman tertinggi pada kelom pok pancang dijumpai di tapak AK-60 dengan nilai 3,26; sedangkan kelompok tiang dan pohon dijumpai di hutan dengan nilai masing-masing 2,29 dan 2,84. Berdas arkan indeks kesamaan Bray-Curtis, tapak yang memiliki tingkat kesamaan tert inggi dengan hutan adalah tapak BEL- 30 dengan nilai pada kelompok panca ng, tiang, dan pohon masing-masing adalah 0,24; 0,22; 0,21; hal ini menandakan bahw a tapak belukar berumur 30 tahun memiliki struktur komunitas yang hampir menyerupai hutan. Tingkat kesamaan terendah terhadap hutan didapatkan ol eh tapak agroforest berumur 30 tahun (AK- 30) dan tapak agroforest berumur 13 tahun (AK-13); hal ini menandakan bahwa lahan agroforest yang berumur di bawah 30 tahun ( ≤ 30 tahun) memiliki perbedaan struktur komunitas dengan hutan. |English Forests exploitation has been enormous ly affected by the rapid increasing of human population growth. Most primar y forest has been converted to many types of land cover, e.g. monoculture pl antation, settlements, rice fields, etc, which in general can be seen as lands cape mosaics. Lubuk Beringin village in Bungo, Jambi, has many types of la ndcover which are dominated by rubber agroforest and shrub (seconda ry forest) with different ages. Varieties of land cover were made by fallow rotation system in swidden agriculture system. The position of Lubuk Beringin which is near fr om the Kerinci Seblat National Park (TNKS) makes it applicable as a supporting area for TNKS, if every type of land cover in Lubuk Beringin can conserve the components of the forests. This research was aimed to analyze the comp arison the structure of tree community, especially for trees, at every dominant land cover in Lubuk Beringin. The research was done on six different landcovers: 10 years shrub land (BEL-10), 30 years shrub land (BEL-30), 13 years rubber ag roforest land (AK-13), 30 years rubber forest land (AK-30), 60 years rubber agrofo rest land (AK-60) and primary forest as a reference area. Few parameters were observed during the research, including the species domination, species rich ness and abundance, Shannon-Wiener diversity index, and Bray-Curtis similarity index. For each site, vegetation analysis was done on three different plots. Structur e of tree community was observed for all life trees which categorized by age: sapling, pole, and tree. The group of trees was identified with the 20x100 m 2 main plot. One 40x5 m 2 sub plot for pole category and one 40x1 m 2 sub plot for sapling category were made inside the main plot. The results of the vegetation analysis showed that the species domination was affected by the type and age of landcover. Agroforest land was highly dominated by the rubber, but its dom ination level will be decreased along with the increment the age of land. Such domination of the late succession type ( Rinorea anguifera ) has already found in the BEL-10. Similar to the forest, the group of tree was dominated by the late succesion type ( Shorea multiflora, Eugenia papilosa, dan Litsea firma ). Based on the calculated Shannon-Wiener diversity index, the highest diversit y of sapling group was found on the AK-60 (3,26) while the groups of pole (2,29) a nd tree (2,84) were found on the forest lands. A high Bray-Curtis similarity i ndex was found between the BEL-30 and the forest land (0,24 for sapling; 0,22 for pole; 0,21 for tree) this i ndicated that the 30 years of shrub (secondary forest) has a sim ilar structure of tree community with to the forests. Both of the AK-30 and AK-13 land have the lowest similarity index with the the forest. This i ndicated that the young agrofo rest land with the age less than 30 years ( ≤ 30 tahun) have a differe nt structure of tree community compare to the forests land.

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