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Potensi Simpanan Karbon Berdasarkan Struktur Tinggi Tanaman Pola-Pola Agroforestry di Kecamatan Tinggimoncong dan Parigi Kabupaten Gowa, Sulawesi-Selatan
Full text linkThe study is aimed to (1) identify agroforesry pattern inside and outside of forest area based on structure and species composition; (2) know carbon stocks potential of agroforestry pattern base on vertical structure; (3) estimate aboveground carbon stocks of agroforesry patterns. The study was conducted on May to September 2009 in Tinggimoncong and Parigi District, Gowa Regency and Laboratory of Silvikultur, Hasanuddin University. To know tree biomass, measurement of diameter breast height was carried out. Total number of sample plots taken was 37 with 20 x 50 m in size. Selection and placement of sample plot was conducted by Purposive Sampling based on consideration of tree species dominant on each different agroforestry patterns. Withdrawal of tree’s biomass samples was conducted by non-destructive sampling, namely without destructing samples. The study results showed that (1) agroforestry system which generally used by community at the study location was agrisilviculture consisting of nine combination’s pattern of crop species. Interval adjustment follows random and border pattern with crop interval of tree component were irregular, (2) number carbon-stock on every range of vertical structure of agroforestry patterns were varied. Agroforestry Erythrina-jackfruit-coffee, clove-annual crops, african tree-coffee, Gmelina-banana patterns tend to follow bell-shaped curve or the stored carbon was the largest on medium-diamater trees, pine-vegetable, Eucalyptus-vegetable crops, pine-coffee, fruit trees-coffee tend to follow J-shaped curve or the stored carbon was the largest on wider-diameter trees, and agroforestry Erythrina-coffee patterns tend to be irregular; (3) two agroforestry patterns which had the highest potential carbon stocks aboveground were pine-coffee and fruittree-coffeeI agroforestry pattern amounted of 199.97 ton ha-1 and 100.54, respectively, and the lowest agroforestry pattern was clove-annual crop pattern namely 18.40 ton ha-1. Key words: Carbon stocks, agroforestry pattern, vertical stratification
Potensi Simpanan Karbon Berdasarkan Struktur Tinggi Tanaman Pola-Pola Agroforestry di Kecamatan Tinggimoncong dan Parigi Kabupaten Gowa, Sulawesi Selatan
No full textThe study is aimed to (1) identify agroforesry pattern inside and outside of forest area based on structure and species composition; (2) know carbon stocks potential of agroforestry pattern base on vertical structure; (3) estimate aboveground carbon stocks of agroforesry patterns. The study was conducted on May to September 2009 in Tinggimoncong and Parigi District, Gowa Regency and Laboratory of Silvikultur, Hasanuddin University. To know tree biomass, measurement of diameter breast height was carried out. Total number of sample plots taken was 37 with 20 x 50 m in size. Selection and placement of sample plot was conducted by Purposive Sampling based on consideration of tree species dominant on each different agroforestry patterns. Withdrawal of tree???s biomass samples was conducted by non-destructive sampling, namely without destructing samples. The study results showed that (1) agroforestry system which generally used by community at the study location was agrisilviculture consisting of nine combination???s pattern of crop species. Interval adjustment follows random and border pattern with crop interval of tree component were irregular, (2) number carbon-stock on every range of vertical structure of agroforestry patterns were varied. Agroforestry Erythrina-jackfruit-coffee, clove-annual crops, african tree-coffee, Gmelina-banana patterns tend to follow bell-shaped curve or the stored carbon was the largest on medium-diamater trees, pine-vegetable, Eucalyptus-vegetable crops, pine-coffee, fruit trees-coffee tend to follow J-shaped curve or the stored carbon was the largest on wider-diameter trees, and agroforestry Erythrina-coffee patterns tend to be irregular; (3) two agroforestry patterns which had the highest potential carbon stocks aboveground were pine-coffee and fruittree-coffeeI agroforestry pattern amounted of 199.97 ton ha-1 and 100.54, respectively, and the lowest agroforestry pattern was clove-annual crop pattern namely 18.40 ton ha-1
REHABILITASI HUTAN DAN LAHAN MELALUI METODE AIR SEEDING dan BALL SEEDING DI SULAWESI SELATAN
No full textBerdasarkan hasil analisis citra tahun 2008 oleh Dinas Kehutanan Provinsi Sulawesi Selatan bahwa luas lahan kritis di Sulawesi Selatan adalah 682.784 ha yang terdiri atas 369.956 ha di dalam kawasan hutan dan 312.828 ha di luar kawasan hutan sedangkan laju rehabilitasi lahan kritis hanya 20.000 ha/tahun. Angka luas lahan kritis ini akan bertahan bahkan bertambah apabila tidak ada solusi rehabilitasi lahan yang lebih cepat dan lebih besar. \ud
Program rehabilitasi hutan dan lahan telah berlangsung sejak lama dan telah menghabiskan dana yang cukup besar. Setiap tahun kegiatan rehabilitasi hutan dan lahan dilakukan di seluruh Indonesia tak terkecuali Sulawesi Selatan. Fakta menunjukkan bahwa kegiatan rehabilitasi hutan dan lahan belum mampu mengatasi laju degradasi hutan dan lahan. Untuk itu perlu dicarikan metode alternatif yang dapat memberikan hasil yang lebih baik dengan waktu yang lebih cepat. \ud
Metode rehabilitasi hutan dan lahan melalui metode penaburan benih dari udara (air seeding) dan peletakkan benih yang telah dicampur dengan media tanah liat dan pupuk kandang (ball seeding) merupakan dua metode yang potensial untuk dicobakan dalam rangka merehabiltasi lahan kritis di Sulawesi Selatan. Teknologi air seeding dan ball seeding telah digunakan pada berbagai upaya rehabilitasi hutan di wilayah Jepang, Mongolia dan Amerika dengan hasil yang memuaskan, tetapi di Indonesia belum populer pelaksanaannya. Masyarakat belum banyak mengenal teknologi ini, untuk itu perlu ada upaya pengkajian dan pemanfaatan teknlogi tersebut khususnya fakultas kehutanan Universitas Hasanuddin
Struktur dan Komposisi Jenis Agroforestry Kebun-Campuran pada Berbagai Luas Pemilikan Lahan Di Desa Pattalikang Kecamatan Manuju Kabupaten Gowa
Full text linkThis research aimed to determine pattern of agroforestry system and agroforestry spesies’s structure and composition of mixed garden practiced by farmer community at various land tenure area. This research was conducted in October to December 2005 in village of Pattalikang, district of Manuju, Regency of Gowa. It was decided to establish four categories of land tenure area based on the preliminary survey and field orientation namely > 0.5 ha, 0.5-1.5 ha, 1.1-1.5 ha, and < 1.5 ha. Method used to set up those categories was Purposive Sampling in which there were 10 plots established for measurement in each type of land tenure area. The size of plot was 20 x 50 m or 0.1 ha. Tree height was measured and species name was recorded to identify the structure and composition of plant species. Herbarium was made for those plant species that have not identified. The research showed that pattern of agroforestry practiced by farmer community was agrisilviculture with irregular plant pattern. Structure and species composition of mixed agroforestry garden at different land tenure area was relatively similar one of each other. The vertical structure consisted of 3 stratum while the species composition were 28 species at land tenure area of < 0.5 ha, 25 species at land tenure area of 0.5-1.0 ha, 26 species at land tenure area of 1.0 ha -1, 5 ha, and 25 species at land tenure area of > 1, 5 ha
PENGARUH JENIS DAN DOSIS PUPUK TERHADAP PERTUMBUHAN TANAMAN GAHARU (Gyrinops sp.) DI BAWAH TEGAKAN PINUS DI HUTAN PENDIDIKAN UNIVERSITAS HASANUDDIN
Full text linkTanaman gaharu merupakan salah satu jenis hasil hutan bukan kayu yang memiliki prospek pasar yang menjanjikan. Untuk itu perlu dibudidayakan secara luas baik dalam kawasan hutan maupun di luar kawasan hutan dalam bentuk sistem agroforestry. Penelitian ini bertujan untuk menemukan jenis pupuk (pupuk kandang, NPK, dan mulsa gamal) dan dosis yang tepat untuk pertumbuhan tanaman gaharu (Gyrinops sp.) di bawah tegakan Pinus merkusii di hutan pendidikan Universitas Hasanuddin. \ud
Penelitian ini dilaksanakan pada bulan Maret sampai dengan Agustus 2010 di Hutan Pendidikan UNHAS. Rancangan penelitian yang digunakan adalah Acak Lengkap (Ramdomized Complete Design). Perlakuan yang dicobakan adalah jenis pupuk yaitu pupuk kandang dengan dosis 0.5 kg/tanaman, 1.5 kg/tanaman, dan 2.5 kg/tanaman, pupuk NPK dengan dosis 10 g/tanaman, 25 g/tanaman, 35 g/tanaman, serta mulsa gamal dengan dosis 1kg/tanaman. 2 kg/tanaman, 3 kg/tanaman. Setiap unit perlakuan diulang sebanyak 4 kali.\ud
Hasil penelitian menunjukkan bahwa perlakuan jenis pupuk berpengaruh nyata terhadap pertambahan tingi, diameter, dan jumlah daun tanaman gaharu. Jenis pupuk kandang dengan dosis 2.5 kg/tanaman memberikan pertumbuhan tinggi tanaman gaharu terbesar, sedangkan pertambahan diameter dan jumlah daun terbesar ditunjukkan oleh perlakuan pupuk kandang dengan dosis 1.5 kg/tanaman
Struktur, Komposisi, dan Pemilihan Jenis Komponen Sistem Agroforestry Di Desa Makuang, Kabupaten Mamasa
No full textThis research aimed to determine pattern of agroforestry system and agroforestry spesies???s structure and composition. This research was conducted in January to February 2009 in village of Makuang, Regency of Mamasa. It was decided to establish four categories of Sub Village (dusun) area based on the preliminary survey and field orientation namely dusun 1, 2, 3, dan 4. Method used to set up those categories was Purposive Sampling in which there were 6 plots established for measurement of structure and species composition in each dusun. The size of plot was 20 x 50 m or 0.1 ha. Tree height was measured and species name was recorded to identify the structure and composition of plant species. Herbarium was made for those plant species that have not identified. \ud
The research showed that pattern of agroforestry system practiced by farmer community was Agrisilviculture and Silvopasture with irregular, rows, alternate rows, and border pattern. The vertical structure of agroforestry system was relatively similar namely consisted of four stratums, but species composition and crops arrangement was different for all agroforestry patterns. While the species composition were 18 species at irregular pattern, 13 species at rows pattern, 4 species at alternate rows pattern, and 8 species at border pattern area
Potensi Serapan Karbon Beberapa Jenis Tanaman pada Ruang Terbuka Hijau Universitas Hasanuddin Makassar
Full text linkThis research aim to to know potency of absorbent carbon some type of crop and forest Universitas Hasanuddin Makassar. Perception and measurement to high and the breast high tree diameter to know biomassa conducted with sampling intake. Sum up taken example plot are 6 fruit of the size 20 x 50 m or for the width of 0.1 Ha. Election plot example of conducted in purposive sampling based for consideration of dominant crop type in a body, type composition, and the coronet closeness. For measurement biomassa request conducted by non-destructive sampling namely without destroying sample, while for plant under by destructive sampling or entangle mutilation sample that is by cutting all plant of under which stay in kuadran and given the brought by last lable of the room in order to be known the wet weight and the weight run dry. Result indicate that potency of absorbent carbon vary pursuant to type of crop and its forest group. Sum up biomassa and highest on carbon there are group of forest Ki-Hujan each 156.0 ton/Ha. and 78.0 ton/Ha. and lower is group johar with amount of biomassa and on file C each 38.43 ton/Ha. and 19.22 ton/Ha. Average highest on file carbon there are group of teak;core forest exeed that is equal to 4.03 ton/Ha./year and lower of group of forest johar that is 0.58 ton/Ha./year, while per individual request there are at local mango type equal to 0.06 ton/tree/year and lower at type waru of equal to 0.0004 ton/tree/year. On the total carbon at RTH UNHAS in this time is 8.652,43 ton and potency of carbon fixation of equal to 366.54 ton/years. Key words: Carbon fixation, green air-gap, biomassa
Peranan input teknik budidaya terhadap keberhasilan agroforestry di lokasi transmigrasi Kumai Kalimantan Tengah
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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