1,720,955 research outputs found
Dinamika Hasil Air dan Analisis Nilai Ekonomi Sumber Daya Air Daerah Aliran Sungai (DAS) Kuranji
Get PDFPerubahan penggunaan lahan merupakan penyebab utama tingginya runoff di DAS Kuranji dan telah menimbulkan dampak sosial dan ekonomi masyarakat. Mengingat permasalahan DAS Kuranji merupakan masalah yang kompleks, maka tidak bisa dikaji dengan satu pendekatan ilmu saja. Penelitian ini bertujuan untuk mengetahui dinamika hasil air DAS, nilai ekonomi yang muncul dari upaya konservasi DAS dan merumuskan arahan dan rekomendasi pengelolaan DAS Kuranji. Dinamika hasil air DAS Kuranji di-analisa berdasarkan model hidrologi SWAT. Metode Willingness to pay (WTP) digunakan untuk mengetahui nilai ekonomi yang muncul dari skenario upaya konservasi lahan kritis dalam DAS Kuranji melalui pendekatan nilai penawaran (bid) dari harga air. Hasil penelitian menunjukkan nilai dinamika hasil air DAS Kuranji adalah : kehandalan 0,79 dengan lama kejadian 290 hari dalam setahun, nilai kelentingan 0,67 atau 67 % kepastian keberhasilan DAS untuk kembali dalam kondisi normal dengan lama kepulihan 75 hari dalam setahun serta rata – rata kerusakan DAS adalah 389.466 m3/hari. Nilai ekonomi sumber daya air yang muncul dalam upaya konservasi DAS Kuranji adalah Rp 272/m3 air yang hanya mampu mengkonservasi 80 % lahan kritis DAS Kuranji. Arahan dan rekomendasi pengelolaan DAS Kuranji adalah menumbuhkan kesadaran masyarakat melalui pembentukan persepsi masyarakat, konservasi tepat sasaran, konservasi DAS secara kontiniu, pemberdayaan masyarakat dan kebijakan insentif yang mengatur pembayaran jasa lingkungan.
Kata kunci : DAS Kuranji, Dinamika Hasil air, Konservasi, Lahan Kritis, Willingness to pay (WTP
ANALISIS KESESUAIAN LAHAN UNTUK PENGEMBANGAN TANAMAN KAYU MANIS (Cinnamomum burmanii BL.) DI KABUPATEN SOLOK SELATAN
Get PDFSektor pertanian memegang peranan penting dalam perekonomian Indonesia, seperti subsektor perkebunan. Salah satu tanaman perkebunan yang mempunyai nilai ekonomis tinggi di Indonesia adalah tanaman kayu manis (Cinnamomum burmanii BL.). Selain itu, tanaman kayu manis juga dapat berfungsi sebagai tanaman penghijauan dan konservasi lahan, khususnya di tebing – tebing dan kaki pegunungan serta daerah aliran sungai. Kabupaten Kerinci dan Merangin di Provinsi Jambi merupakan penghasil kayu manis nomor tiga di dunia. Kabupaten Solok Selatan merupakan salah satu daerah yang terletak di Provinsi Sumatera Barat yang berbatasan langsung dengan Kabupaten Kerinci Provinsi Jambi. Kabupaten Solok Selatan memiliki karakteristik iklim dan topografi yang hampir sama dengan Kabupaten Kerinci. Oleh karena itu, tanaman kayu manis bisa dikembangkan di Kabupaten Solok Selatan dengan memperhatikan kesesuaian lahan yang ada. Tujuan dari penelitian ini adalah untuk mengetahui kesesuaian lahan tanaman kayu manis di Kabupaten Solok Selatan dalam upaya pengembangan tanaman kayu manis di Kabupaten Solok Selatan. Berdasarkan hasil penelitian diperoleh lahan tersedia untuk pengembangan tanaman kayu manis seluas 86.430,15 ha atau 24,07 % dan lahan tidak tersedia seluas 272.574,72 ha atau 75,93 %. Setelah dilakukan overlay terhadap masing - masing parameter kesesuaian lahan tanaman kayu manis (curah hujan, jenis tanah, temperature, dan kelerengan), maka didapatkan lahan kelas S1 (Sangat Sesuai) seluas 24.775,00 ha atau 6,90 %, lahan kelas S2 (Cukup Sesuai) seluas 61.598,04 ha atau 17,16 % dan lahan kelas S3 (Sesuai Marginal) 57,11 ha atau 0,07 %. Analisis Produksi tanaman kayu manis dari lahan tersedia menghasilkan 1.209.225,56 ton kulit kering dalam rentang waktu 8 tahun pembudidayaan dengan harga Rp. 24.184.511.200.
Kata Kunci : kayu manis, kesesuaian lahan, Kabupaten Solok Selata
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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