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J. I. Kalangi, J. I.
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Agriculture, Biological Sciences & Forestry

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REDESAIN RUANG TERBUKA HIJAU KAMPUS UNSRAT BERDASARKAN EVALUASI KENYAMANAN TERMAL DENGAN INDEKS DISC Saroinsong, Fabiola B.; Kalangi, J. I.; Babo, Prestin
EUGENIA Vol 23, No 2 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.23.2.2017.16778

Abstract

ABSTRACT Outdoor spaces are important to sustainable cities because they accommodate outdoor activities and contribute greatly to the quality of urban living.During the last decade, interest in the assessment of thermal comfort has increased because of climate changes and increased heat stress in cities. Greenspaces that provide a pleasurable thermal comfort experience for users effectively improve their quality of livability and productivity. However, current investigations lack a general framework for the use of thermal comfort assessment, such as in making master plan or designing better greenspace. This paper discusses greenspace of Sam Ratulangi University Campus relating to thermal comfort. It provides knowledge of thermal comfort investigation and landscape design review. The results of thermal comfort assessment, among 11 observed plots, only greenspace at FMIPA is categorized as comfortablespot. Greenspaces at FAPET and FEB are not really comfortable, those at BNI and FKM A and FKM B are not comfortable and those at FATEK, FAPERTA, FISIP, FH, FKM A are categorized as very uncomfortable spots. We suggest some options for redesigningof uncomfortable and very uncomfortable greenspace spots.Keywords: greenspace, outdoor, termal comfort
ANALISIS PERTUMBUHAN PADA BEBERAPA KERAPATAN TANAM TANAMAN LOBAK (Raphanus sativus L.) Kalangi, J. I.
EUGENIA Vol 11, No 1 (2005)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.11.1.2005.11883

Abstract

ABSTRACT Kalangi, J.I. 2005. Growth Analysis of Radish Crop (Raphanus Sativus L) Planted in Various Density. Eugenia 11 (1): 18-24. Plant density is known to be important factor to determine the agronomical target of a maximum production. Plant density is generally determined by spacing. The wide spacing, may caused inefficient farm system. On the contrary, narrow by spaced planting can retard growth. Prediction of growth rates and development of crop plants including radish is insufficient if it is relied only on the change that happens to the crop with days after planting. But the basis of the prediction is its potential production biomass. This research is discover the density that suistable for maximum land - use. This research was conducted in a randomized block design, with five density treatments. The treatments were 40 x 60 cm, 45 x 60 cm, 50 x 60 cm, 55 x 60 cm and 60 x 60 cm each of which is repeated three times. The variable obseverved was crop dry matter. Air temperature and rainfall were also recordee. Data were analysed using ANOVA and SSD for mens differences. Radish growth and produces were determined by growth rate (Cm), periode of linear growth (tm) and period of silent growth (to). Plant density significantly affected the growth of radish. The maximum production was found at 50x60 cm with growth rate6.23g m-2 day-1. Keywords: Raphanus sativus, radish growth
PENGARUH RUANG TERBUKA HIJAU TERHADAP IKLIM MIKRO DAN KENYAMANAN TERMAL PADA 3 LOKASI DI KOTA MANADO Mala, Yordan P.; Kalangi, J. I.; Saroinsong, F. B.
EUGENIA Vol 24, No 2 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.2.2018.22658

Abstract

Microclimate is an important requirement for urban communities in creating outdoor thermal comfort. Micro climate as a benchmark in determining thermal comfort consists of 4 (four) elements which are, air temperature, air humidity, wind speed and solar radiation. Green open space area is one way to create comfortable micro climate for the community. The purpose of this study is to analyze microclimate and thermal comfort in 3 (three) green open spaces. The researcher used a purposive sampling method and chose the area with the same characteristics, namely UNSRAT Field, Tikala Field, and KONI Field. The results obtained were that the UNSRAT Field had the highest thermal comfort level with a percentage reaching 90% at 10:00 a.m. and 80% at 1:00 p.m. In addition, the micro climates in the three locations have differences, differences occur due to canopy area, tree species, plants, pavement type and building area around green open space.Keywords : microclimate, climate, open space, green open space
LOLOSAN TAJUK, ALIRAN BATANG DAN INTERSEPSI PADA POHON PAKOBA (Syzigium sp.) NANTU (Palaquium obtusifolium Burck) DAN CEMPAKA (Magnolia tsiampacca) Rumagit, Novita I.; Kalangi, J. I.; Saroinsong, F. B.
EUGENIA Vol 25, No 2 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.2.2019.31398

Abstract

Interception is one part of hidrology cycle which small value and sometimes ignored but interception has a large impact on certain plants. Amoun of value stem fall and through fall affected by interception. This study was conducted in Tomohon City Forest with purpose to determine magnitude of value through fall, stem fall and interception pakoba (Syzigium Sp.), nantu (Palaquium obtusifolium Burck) and cempaka (Magnolia tsiampacca). This research by using randomized group design method use 3 (tree) type of trees pakoba (Syzigium Sp.), nantu (Palaquium obtusifolium Burck) and cempaka (Magnolia tsiampacca). Each was repeated 5 (Five) times, in order to obtain 15 units of the experiment. Data were analyzed with analysis of variance and further using BNT test. The result of this research show amount of value stem fall pakoba 10,55 %, nantu 9,01 % and cempaka 7,99 %. Amount of value through fall pakoba 8,13 %, nantu 5,25 % and cempaka 2,45 %. Amount of value interception pakoba 82 %, nantu 86,31 % and cempaka 89,37 %. BNT test show interception in pakoba 82 % significant different with cempaka 89,37 % and not significant different with nantu 86,31 %. Nantu 86,31 % not significant different with cempaka 89,37 %.
LAJU RESAPAN ALIRAN PERMUKAAN OLEH LUBANG RESAPAN GEOPORI PADA LAHAN PERTANIAN PASCA PANEN Rarun, Suharti; Kalangi, J. I.; Saroinsong, F. B.
EUGENIA Vol 25, No 2 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.2.2019.31399

Abstract

In the last few years, many forests in Indonesia have experienced changes in land use to agricultural land, this has implications for the emergence of environmental problems, namely an increase in surface flow that causes flooding . Geopore technology or geopore infiltration hole is a technology that can be used to reduced rainwater runoff by absorbing more volume of rainwater into the soil and can help to maintain the presence or availability of ground water. This study aims to determine the percentage of surface flow reduction by geopore infiltration holes in land-based trees, reeds and open land. This study aims to determine the volume of surface flow and the rate of infiltration of rainwater on post-harvest agricultural land. The method in this study used a was randomized block design as a data collection method which was then analyzed using descriptive analysis. The results of this study showed that the average rainfall intensity of 16.36 mm / hour obtained an average rate of recharge on post-harvest agricultural land without geopore which was 65 mm / hour and the average rate of recharge on agricultural land with geopore infiltration holes namely 148 mm / hour.
Co-Authors Babo, Prestin F. B. Saroinsong Fabiola B. Saroinsong Mala, Yordan P. Rarun, Suharti Rumagit, Novita I.