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Analisis Struktur Komunitas Hutan Bakau Di Pantai Paradiso Kelurahan Oesapa Barat Kecamatan Kelapa Lima Kota Kupang Dance Bobia Mesah; I. Nyoman P. Soetedjo; Moses K. Tokan
JURNAL WILAYAH, KOTA DAN LINGKUNGAN BERKELANJUTAN Vol. 2 No. 2 (2023): JURNAL WILAYAH, KOTA DAN LINGKUNGAN BERKELANJUTAN
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jwikal.v2i2.338

Abstract

Mangroves have high ecological and economic value for local communities, as spawning grounds, nursery grounds, feeding grounds for marine life, and act as protection against abrasion. Protected mangrove forests provide many choices for coastal communities to meet economic needs. However, the activities and exploitation of humans that increase from time to time can threaten, destroy and even reduce the stability of the life, quantity and quality of mangrove forests. This study aims to determine the physical and chemical parameters of the environment, the species composition and structure of the mangrove forest community in Paradiso Beach, Oesapa Barat Village, Kelapa Lima District, Kupang City. This research is quantitative descriptive. This research is located at Paradiso Beach, Oesapa Barat Village, Kelapa Lima District, Kupang City. Methods of data collection by making observations and recording the results of observations and interviews in the field, analysis in the laboratory and documentation. Data analysis begins with data collection, data reduction, data presentation and drawing conclusions. The results showed that station I had parameters of temperature (270C), pH (8.08), salinity (20.5‰), DO (6.42mg/l) and station II had parameters of temperature (280C), pH (7.99), salinity (21.7‰), DO (7.43 mg/l), the parameters of the two points of this station meet the environmental quality standards for mangrove forest communities. The composition of mangrove forest types at the two station points only consisted of 3 families with 3 mangrove species, namely Sonnetaria alba, Rhizophora apiculata, and Avicennia alba. Community structures of the mangrove forest at station I and station II were categorized as damaged with rare criteria at the tree level, sapling level and seedling level. Importance Value Index (INP) of station I (258%) and station II (222.1%), this shows that Sonneratia alba has a higher level of spatial tenure in mangrove forest communities, diversity index (H') at station I (0.64) and station II (0.71), this shows that the mangrove forest community has environmental stability. and the uniformity index (J') of station I (0.68) and station II (0.76), this shows an unbalanced distribution pattern between tree species in mangrove forest communities, and dominance index (D) of station I (0,61) and Station II (0.51), this shows the concentration and distribution of the dominant Sonneratia alba species in the mangrove forest community of Paradiso Beach, West Oesapa Village, Kelapa Lima District, Kupang City.
PENGGUNAAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) DALAM MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI FOTOSINTESIS KELAS IV SDN SIKUMANA 2 Maria Jesica Karolina Meo; Moses K. Tokan; Maxsel Koro
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 3 September 2025 In Order
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.28498

Abstract

This research was conducted to answer the problem of low student learning outcomes on photosynthesis material in class IV SDN Sikumana 2. Based on the results of initial observations, it is known that the learning process is dominated by the teacher and does not involve students actively. This research is a Classroom Action Research (PTK) conducted in two cycles, with 20 students as the research subjects. Data collection techniques include observation of teacher and student activities, and learning outcomes tests. The results showed that the application of the Problem Based Learning (PBL) learning model was able to significantly improve student learning outcomes, marked by an increase in the average score from 53.32 in cycle I to 81.05 in cycle II. The level of learning completeness also increased from 35% to 85%. From these results, it can be concluded that the Problem Based Learning (PBL) learning model is effective in improving student learning outcomes on photosynthesis material. This model encourages students to be active, think critically, and work together in groups. The findings recommend that problem-based learning be integrated in IPAS subjects in elementary schools, accompanied by periodic teacher training to support the implementation. Keywords: Problem-Based Learning; Photosynthesis; Learning Outcomes