Artikel Ilmiah : B1J010233 a.n. ADIN WAHYU PRATAMA
| NIM | B1J010233 |
|---|---|
| Namamhs | ADIN WAHYU PRATAMA |
| Judul Artikel | Komunitas Nematoda Pada Tanah Yang Diperkaya Materi Organik |
| Abstrak (Bhs. Indonesia) | Nematoda merupakan salah satu kelompok organisme tanah yang berperan penting dalam proses dekomposisi materi organik dalam tanah. Keberadaan sebuah struktur komunitas nematoda pada ekosistem yang berbeda-beda menunjukkan bahwa nematoda dapat merespon stress lingkungan dan berguna sebagai indikator kesehatan tanah. Nematoda dalam jaring-jaring makanan terlibat dalam proses mineralisasi materi organik dan nutrisi organik serta mentransfer sumber energi dan nutrisi ke tingkat trofik diatasnya. Selain itu, interaksi atas dan bawah tanah yang terjadi dalam ekosistem terrestrial juga menentukan biodiversitas organisme di atas maupun di dalam tanah dan berpengaruh terhadap tumbuhan di atasnya. Tujuan dari penelitian ini adalah untuk mengetahui komunitas nematoda pada lahan yang diperkaya dengan materi organik dan untuk mengetahui korelasi pertumbuhan aboveground tanaman kacang dengan komunitas nematoda. Percobaan dilakukan secara eksperimental dengan menggunakan Rancangan Acak Lengkap. Analisis dilakukan dengan MANOVA dilanjutkan analisis komposisi dan korelasi menggunakan CCA. Penelitian ini diharapkan dapat memberikan informasi keilmuan tentang pengaruh materi organik terhadap komunitas nematoda. Hasil menunjukkan adanya pengaruh penambahan materi organik terhadap perubahan kelimpahan nematoda baik secara keseluruhan maupun berdasarkan familia (Wilk’s lambda 0.005). Setiap jenis materi organik yang diberikan menghasilkan komposisi dan dominansi nematoda yang berbeda-beda. Perlakuan C0, C1, C2, C3 secara keseluruhan didominasi oleh famili Rhabditidae (pemakan bakteri). Namun fluktuasi jumlah dari familia lain pada setiap perlakuan berbeda-beda. Pada perlakuan C2 fluktuasi familia lainnya berada pada jumlah yang tidak terlalu berbeda secara signifikan dan penurunan hanya ada pada familia Criconematidae. Hal ini menyebabkan perlakuan C2 menjadi perlakuan dengan kelimpahan terbanyak. Selain itu, CCA menunjukkan korelasi sangat kuat dengan nilai 86.6% antara faktor lingkungan dan komunitas nematoda. Penambahan materi organik mampu mempengaruhi komposisi dan dominansi nematoda. |
| Abtrak (Bhs. Inggris) | Nematodes are one of the groups of soil organisms that have an important role in the decomposition process of organic matter in the soil. The existence of a nematode community structure in different ecosystems show that nematodes can respond to a number of environmental stresses and is useful as an indicator of degradation of soils or soil health. Nematodes in the food web involved in the process of mineralization of organic matter and organic nutrients as well as transfer of energy sources and nutrients to the top trophic level. In addition, both above and underground interaction that occurs in terrestrial ecosystems will also determine the biodiversity of organisms on or in the soil and affect the plant aboveground. The purpose of this study was to determine the nematode communities on land enriched with organic matter and to determine the correlation aboveground growth of bean plants with nematode community. Experiments carried out experimentally by using completely randomized design with factorial. Analyses were performed with MANOVA followed composition analysis and correlation using the CCA. This study is expected to provide scientific information on the effect of organic matter on the nematode community. Nematodes are one group of soil organisms that have important roles in decomposition process of organic matter in soil. Nematode community structure in different ecosystems showed that nematodes respond to a number of environmental stresses, thus useful as an indicator of soil health. Nematodes in the food web involved in the process of mineralization of organic matter and organic nutrients as well as energy transfer to the top trophic level. In addition, both above and underground interaction that occurs in terrestrial ecosystems determines the biodiversity of soil organisms that in return affects the plant aboveground. The objectives of this study were to determine the nematode communities on soil enriched with organic matter and to determine the correlation between aboveground growth of plants and nematode community. Experiments were carried out experimentally using completely randomized design with factorial. Data analyses were performed with MANOVA and correlation using CCA. This study was expected to provide scientific information on the effect of organic matter on the nematode community. The results showed the positive effect of organic matter enhamcement on the abundance of nematodes (Wilk's lambda 0.005). Each type of organic matter produced composition and dominance of different nematodes. Treatment C0, C1, C2, C3 were dominated by Rhabditidae (bacterial feeder). However, there was a fluctuations in the number of other familia on other treatments. In C2 the nematode number was not significantly different and the number decreased only in Criconematidae. This mignht cause C2 had the highest abundance. Additionally, CCA showed a very strong correlation with the value of 86.6% between environmental factors and nematode community. The addition of organic matter was able tof influence the nematode composition and dominance. |
| Kata kunci | soil food webs, community nematodes, terrestrial ecosystems. |
| Pembimbing 1 | Dra. Ardhini R. Maharning, M.Sc., Ph.D |
| Pembimbing 2 | Dra. Erie K. Nasution, M.Si |
| Pembimbing 3 | |
| Tahun | 2016 |
| Jumlah Halaman | 15 |
| Tgl. Entri | 2016-05-02 15:29:27.196756 |