scholarly journals STRUKTUR VEGETASI DAN SIMPANAN KARBON HUTAN RAKYAT DESA SAMBAK, MAGELANG, JAWA TENGAH

2020 ◽  
Vol 23 (2) ◽  
Author(s):  
Rizmoon Nurul Zulkarnaen

Hutan rakyat adalah hutan yang dikembangkan di lahan milik masyarakat dan bukan di kawasan hutan. Keragaman tumbuhan penyusun hutan rakyat bergantung pada kepentingan masing-masing pemilik lahan. Salah satu praktik hutan rakyat yang lestari berada di Desa Sambak, Kecamatan Kajoran, Kabupaten Magelang. Hal tersebut terlihat dari tingkat partisipasi penduduk yang tinggi dalam menanam tanaman hutan di lahan-lahan mereka. Namun demikian, informasi tentang vegetasi-vegetasi penyusun yang ditanam dalam praktik hutan rakyat tersebut masih sedikit. Oleh karena itu, penelitian ini dilakukan dalam upaya mengungkap praktik hutan rakyat di Desa Sambak. Selain itu, penghitungan simpanan karbon di hutan rakyat tersebut juga dilakukan dalam upaya mengungkap peranan hutan rakyat dalam penyerapan karbon. Teknik pengumpulan data menggunakan metode transek dengan plot pengamatan berukuran 20x20 m dengan jarak antar plot 50 m. Metode penghitungan simpanan karbon menggunakan metode non-destruktif yaitu dengan cara menaksir simpanan karbon berdasarkan diameter dan tinggi pohon. Komposisi tumbuhan penyusun vegetasi hutan rakyat tersebut terdiri atas 24 jenis dari 16 suku. Vegetasi penyusun hutan rakayat tersebut didominasi oleh Falcataria falcata (L.) Greuter & R.Rankin. Hasil tersebut sesuai dengan penghitungan indeks nilai kepentingan tertinggi yang dicapai oleh Falcataria falcata (L.) Greuter & R.Rankin (70.67), Swietenia macrophylla King (52.18), Cocos nucifera L. (37.53), dan Artocarpus heterophyllus Lam. (25.21). Namun, dalam penghitungan simpanan karbon menunjukan bahwa potensi simpanan karbon tertinggi dimiliki oleh Cocos nucifera L. yaitu 1034,07 ton C/ha. Adapun simpanan karbon total hutan rakyat Desa Sambak sebesar 3499,89 ton C/ha.

2021 ◽  
Vol 24 (2) ◽  
pp. 85-92
Author(s):  
Emma Sri Kuncari ◽  
Marwan Setiawan

Kentongan dikenal sebagai salah satu alat komunikasi tradisional yang memanfaatkan bambu dan kayu. Sebagian masyarakat Indonesia masih mengenal dan menggunakan kentongan di tengah pesatnya perkembangan teknologi dan informasi seperti saat ini. Studi etnobotani dilakukan untuk mengkaji lebih mendalam tentang kearifan lokal masyarakat mengenai kentongan. Metode yang digunakan berupa observasi di beberapa wilayah di Indonesia dan wawancara secara acak terpilih. Data yang dikumpulkan dianalisis secara deskriptif kualitatif. Hasil kajian diperoleh data keanekaragaman jenis bambu dan kayu kentongan yaitu bambu ori (Bambusa blumeana Schult.f.), bambu petung (Dendrocalamus asper (Schult.) Backer), bambu apus (Gigantochloa apus (Schult.) Kurz), bambu wulung (G. atroviolacea Widjaja), kayu nangka (Artocarpus heterophyllus Lam.), kayu jati (Tectona grandis L.f.), kayu kelapa (Cocos nucifera L.), kayu mahoni (Swietenia mahagoni (L.) Jacq.), dan kayu sengon (Albizia chinensis (Osbeck) Merr.). Ukuran dan bentuk fisik kentongan bervariasi. Nilai-nilai sosial dan religius kentongan sejalan dengan perkembangan zaman, serta penyelamatan nilai budaya dan konservasi keanekaragaman hayati bahan baku kentongan agar tidak terkikis perubahan zaman. Dengan demikian, masyarakat masih menggunakan kentongan secara lestari untuk mengatur pola hidup kebersamaan dalam masyarakat.


2019 ◽  
Vol 2 (1) ◽  
pp. 17-23
Author(s):  
Nurmala Sari

Research on the influence of polysaccharides from the jackfruit rags (Artocarpus Heterophyllus Lamk) on the content of glucose syrups on hydrolyzing with HCl 30% has been done. A sample has got with simple random sampling. The cellulose was isolated from the seeds of rags. The cellulose was hydrolyzed by HCl 30% to produce glucose syrups. The content was analyzed by the Nelson-Somogyi method and calculated by regression analysis. The results of analysis show that the content of glucose syrups from the cellulose from the jackfruit rags were 2.47%.   Keywords: cellulose, jackfruit rags, glucose syrups, Hydrolysis


1999 ◽  
Vol 17 (1) ◽  
pp. 49-52 ◽  
Author(s):  
Robert H. Stamps ◽  
Michael R. Evans

Abstract A comparison was made of Canadian sphagnum peat (SP) and Philippine coconut (Cocos nucifera L.) coir dust (CD) as growing media components for greenhouse production of Dracaena marginata Bak. and Spathiphyllum Schott ‘Petite’. Three soilless foliage plant growing mixes (Cornell, Hybrid, University of Florida #2 [UF-2]) were prepared using either SP or CD and pine bark (PB), vermiculite (V), and/or perlite (P) in the following ratios (% by vol): Cornell = 50 CD or SP:25 V:25 P, Hybrid = 40 CD or SP:30 V:30 PB, UF-2 = 50 CD or SP: 50 PB. Dracaena root growth was not affected by treatments but there were significant mix × media component interactions that affected plant top growth parameters. In general, the growth and quality of D. marginata were reduced by using CD in Cornell, had no effect in Hybrid, and increased in UF-2. S. ‘Petite’ grew equally well in all growing mixes regardless of whether CD or SP was used; however, plants grew more in Cornell and Hybrid than in UF-2. S. ‘Petite’ roots, which were infested with Cylindrocladium spathiphylli, had higher grades when grown in CD than when the media contained SP.


2013 ◽  
Vol 36 (3) ◽  
pp. 319-330 ◽  
Author(s):  
K. Samsudeen ◽  
M. K. Rajesh ◽  
D. D. Nagwaker ◽  
Raghavan Reshmi ◽  
P. Ajith Kumar ◽  
...  

Author(s):  
Olugbemi T. Olaniyan ◽  
Olakunle A. Ojewale ◽  
Ayobami Dare ◽  
Olufemi Adebayo ◽  
Joseph E. Enyojo ◽  
...  

Abstract Objectives Lead primarily affects male reproductive functions via hormonal imbalance and morphological damage to the testicular tissue with significant alteration in sperm profile and oxidative markers. Though, different studies have reported that Cocos nucifera L. oil has a wide range of biological effects, this study aimed at investigating the effect of Cocos nucifera L. oil on lead acetate-induced reproductive toxicity in male Wistar rats. Methods Twenty (20) sexually matured male Wistar rats (55–65 days) were randomly distributed into four groups (n=5). Group I (negative control)—distilled water orally for 56 days, Group II (positive control)—5 mg/kg bwt lead acetate intraperitoneally (i.p.) for 14 days, Group III—6.7 mL/kg bwt Cocos nucifera L. oil orally for 56 days and Group IV—lead acetate intraperitoneally (i.p.) for 14 days and Cocos nucifera L. oil for orally for 56 days. Rats were sacrificed by diethyl ether, after which the serum, testis and epididymis were collected and used for semen analysis, biochemical and histological analysis. Results The lead acetate significantly increases (p<0.05) testicular and epididymal malondialdehyde (MDA) levels, while a significant reduction (p<0.05) in sperm parameters, organ weight, testosterone and luteinizing hormone was observed when compared with the negative control. The coadministration of Cocos nucifera oil with lead acetate significantly increases (p<0.05) testosterone, luteinizing hormone, sperm parameters and organ weight, with a significant decrease (p<0.05) in MDA levels compared with positive control. Histological analysis showed that lead acetate distorts testicular cytoarchitecture and germ cell integrity while this was normalized in the cotreated group. Conclusions Cocos nucifera oil attenuates the deleterious effects of lead acetate in male Wistar rats, which could be attributed to its polyphenol content and antioxidant properties.


2016 ◽  
Vol 71 (1) ◽  
pp. 227-237 ◽  
Author(s):  
Eliane Brito Cortez Lima ◽  
Caren Nádia Soares de Sousa ◽  
Lucas Nascimento Meneses ◽  
Yuri Freitas e Silva Pereira ◽  
Natália Castelo Branco Matos ◽  
...  

1994 ◽  
Vol 23 (3) ◽  
pp. 253-276 ◽  
Author(s):  
Miflora M. Gatchalian ◽  
Sonia Y. De Leon ◽  
Toshimasa Yano

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