Pengaruh Kombinasi Kerapatan Kanopi Pohon terhadap Kenyamanan Termal di Lapangan Puputan Margarana, Denpasar

Abstract

Puputan Margarana as a city park is used as a public space that can accommodate outdoor activities for its users. Comfort is an important factor consider for users to conduct activity inside. User comfort level can be measured using the thermal humidity index formula based on the temperature and humidity variables. The temperature and humidity can be influenced by the presence of vegetation, especially trees. Differences in tree species composition will cause differences in the canopy density formed. This study aims to identify the effect of the combined tree canopy density on thermal comfort. This research method begins with determining the sample point based on the combination of canopy density to areas that are not shaded by the canopy. Then, the canopy was photographed at the sample point for analysis using Hemiview 2.1 software to obtain the leaf area index (LAI) value. Furthermore, independent samples T test, assessment of thermal comfort, correlation analysis and linear regression between variables. The results of the analysis show that there is a strong correlation between LAI with temperature, humidity, and THI. There were significant differences between THI at sample points 1, 2, 4, and 5 with LAI 1.68-4.53 against THI without canopy shade. Meanwhile, THI at sample points 3 and 6 with LAI 0.96-1.36 was not significantly different from THI without canopy shade. This shows that the combination of tree canopy density in this study has an effect on thermal comfort. This shows that canopy density can be one of the considerations in selecting trees for landscape design for climate engineering purposes.

Resistance of cayenne pepper varieties (Capsicum frutescens) to anthracnose disease (Colletotrichum gloeosporioides) isolates from swampy areas

“…The regression test results between the incubation period and disease incidence show a very strong correlation with a value of R = 0.810076, consistent with the findings of Putra et al (2022), stating that if the correlation coefficient (Multiple R) is between 0.60 -0.899, there is a strong correlation between variables x and y, i.e., between the incubation period and disease incidence. The correlation resulted in an equation and coefficient of determination (R²) indicating the percentage of the incubation period's influence on disease incidence.…”

Evaluasi Kenyamanan Termal dan Estetika Berbasis Analisis Tapak dan Persepsi User Taman Kota Depok

“…Berdasarkan hasil analisis kenyamanan termal dapat diketahui bahwa vegetasi mempengaruhi iklim mikro di taman. Pohon yang memiliki bentuk kanopi menyebar (spread) dan kerapatan tajuk tinggi dapat meningkatkan kenyamanan termal karena area di bagian bawahnya dapat ternaungi dengan penuh (Putra et al, 2022). Thermal yang baik dalam mencegah penyebaran virus Covid-19 pada era new normal yaitu memastikan adanya sirkulasi udara.…”

Evaluasi Kerusakan Fisik Pohon dalam Upaya Menghadirkan Pohon Jalur Hijau yang Aman di Kota Padang

“…Faktor cuaca berkaitan erat dengan kepadatan dan kerapatan tajuk. Tajuk yang terlalu padat dan rapat dapat mengurangi sinar matahari masuk sehingga dapat meningkatkan kelembaban dan menurunnya suhu bawah tajuk (Lecigne et al, 2018;Putra et al, 2022). Hal tersebut dapat menjadi tempat yang nyaman bagi patogen untuk berkembangbiak.…”