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Dinda Azalia
Master Program of Biology, University of Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Environmental Science Immunology & microbiology Social Sciences

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Dinamika Struktur Komunitas Vegetasi Liar dan Pertumbuhan Padi Hitam Di Sawah Organik Kecamatan Kepanjen Malang Azalia, Dinda; Arisoesilaningsih, Endang
Biotropika: Journal of Tropical Biology Vol 1, No 1 (2013)
Publisher : Biotropika: Journal of Tropical Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (571.786 KB)

Abstract

 Penelitian ini bertujuan untuk menentukan dinamika struktur vegetasi liar selama  pertumbuhan padi hitam di persawahan organik di Kecamatan Kepanjen Kabupaten Malang dan menentukan interaksi keberadaan vegetasi liar pada pertumbuhan padi hitam. Metode yang digunakan adalah selected sampling, yaitu pemilihan petak contoh didasarkan pada pertumbuhan tanaman padi dan kelimpahan vegetasi liar. Pertumbuhan padi hitam diamati berdasarkan tinggi tanaman, biomassa, jumlah anakan, jumlah spikelet dan jumlah serta berat biji. Vegetasi liar diamati secara langsung dengan luasan 50 x 50 pada lokasi penentuan pengamatan pertumbuhan padi hitam. Faktor abiotik yang menjadi variabel bebas dalam penelitian ini meliputi tanah (berat jenis, bahan organik, pH dan konduktivitas) dan air sawah (pH dan konduktivitas). Genangan air sawah diamati dengan menggunakan score. Pengamatan dilakukan dalam empat fase (adaptasi tanaman 28 hst, pembentukan anakan 48 hst, pengisian malai 88 hst dan menjelang panen112 hst). Hasil pengamatan menunjukkan adanya dinamika vegetasi liar selama pertumbuhan padi hitam yang digambarkan dari biomassa vegetasi liar. Kelimpahan vegetasi liar yang tinggi menyebabkan penurunan terhadap pertumbuhan padi hitam, hal ini ditunjukkan dari tinggi pertumbuhan padi, jumlah anakan, malai dan spiklet pada masing-masing umur padi tumbuh minimal, rata-rata dan maksimal. Penutupan vegetasi liar berkorelasi negatif dengan genangan air sawah, yaitu tingginya genangan air sawah memberikan pengaruh terhadap vegetasi liar yang tumbuh.Kata kunci : Dinamika, padi hitam, pertumbuhan, vegetasi liar.
Evaluation of Ground Arthropod Structure in Restoration Area of Talangagung Landfill as Edutourism Attraction, Kepanjen, Malang Azalia, Dinda; Setiawan, Hendra; Retnaningdyah, Catur
Journal of Indonesian Tourism and Development Studies Vol. 3 No. 3 (2015)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jitode.2015.003.03.01

Abstract

Aim of this research is to know the composition, community structure and survivality of ground arthropod in restoration area of Talangagung edutourism landfill (TPA Wisata Edukasi Talangagung). Arthopod survey was conducted with four methods, yellow pan trap, pit fall trap, berlesetullgren, and sweep net. The research was done in four different locations with twice repetition. Survey location was devided in three zone, which is zone one with 10 years restoration, zone two with five years restoration, and zone three which not yet restored, and reference site. Abiotic factor which observed in this research such as light intensity, humidity, and air temperature. Analysis of arthropod diversity and community structure in each site was calculated from importance value index (IVI) and diversity index (Shannon Wienner Index). The results show that diversity of ground arthropod in zone one, two, three, and reference site was on medium level which each score 1.9, 1.87, 1.71, and 2.08. Community structure with dominant pattern showed with IVI from Acrididae in zone one and zone three with IVI 67.2 % and 53.5 %. Myrmicidae in reference site dominance with IVI 51.4 % and Formicidae in zone one with IVI 48.6 %. Ground arthropod in zone one and reference site had similarity in community structure which showed in same cluster in biplot analysis and zone two and three was in another different cluster. Keywords : Arthropod, diversity, restoration, community structure
Co-Authors Catur Retnaningdyah Endang Arisoesilaningsih Hendra Setiawan