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The Correlation Between Type of Land Use and Water Quality in the Rembangan River, Jember Regency Wardiani, Fefi Eka; Wimbaningrum, Retno; Setiawan, Rendy
Jurnal ILMU DASAR Vol 20 No 2 (2019)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (653.226 KB) | DOI: 10.19184/jid.v20i2.8939

Abstract

The river is one of the important water sources and at this time the river water quality has decreased.The type of land use around the river is thought to have a significant contribution to river water quality. This research was conducted to determine of correlation between the type of land use and water quality in Rembangan River, Jember Regency.The study was carried out at four stations that passed through secondary forests, coffee plantations, rice fields and residential housing. The data of biodiversity and density of plants and physical-chemical parameters of river water were noted, and benthic macroinvertebratessamples were collected at each station. Data of biodiversity and density plants were used to determine of environmental services index (ESI) values. Benthic macroinvertebrates samples were identifiedat the family level, and after that the tolerance score and the abundance of each family was determined. The last two data were analyzed to determine of Family Biotic Index (FBI) values.The value of ESI, physico-chemical parameters of river waterand FBI were analyzedto determine the relationship between these variables by using Pearson correlation analysis (α < 0.05).The research result revealed that the type of land use (ESI) was significantly related to the biological quality of river water (FBI) as indicated by the p value > 0.05. The correlation characteristic is negative and very strong (R = 0.886). High ESI values indicate that the diversity and carbon sequestration of plant community around the river are in good condition and vice versa. Low HBI values indicate good river water quality and vice versa. Based on this research, each land use type must provide space for the natural growth of the plant communityto maintain the quality of river water to remain good. Keywords: river, benthic macroinvertebrates, land use, water quality, ESI, HBI.
THE DIVERSITY OF METHODOLOGIES APPLIED IN INDONESIAN JOURNAL ARTICLES FOCUSED ON BIOCHEMISTRY LEARNING Wahyono, Poncojari; Wardiani, Fefi Eka; Susetyarini, Eko
JPBI (Jurnal Pendidikan Biologi Indonesia) Vol 6, No 1 (2020): MARCH
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jpbi.v6i1.11344

Abstract

Biochemistry is a study which consists of many difficult concepts. Research that examines biochemistry learning needs to be continuously carried out so that the quality of learning can be evaluated and improved. Hence, this content analysis addressed to analyze the research methodologies of the articles published in various Indonesian biology education journals. The focus of the articles studied was biochemistry learning in Indonesia. To go further, the articles must be published between 2000 and 2020. The findings of this study informed that during the last two decades, the research publications which examined biochemistry learning have rarely been carried out. From those publications, quantitative research was the research type used the most. In addition, postgraduate student was the most frequently chosen as the research subject. Furthermore, questionnaire sheet was the highest preference of data collection instrument used. Meanwhile, the highest frequency of data analysis methods used were percentage and N-gain calculation. The low number of publications and the lack of research methodology diversity need to be more seriously considered by increasing the number of studies examining biochemistry learning in Indonesia.