The populous city of Palembang is one the most flood-prone cities in Indonesian region. After some decades, magnitude, duration, and frequency floods have increased. Thus, this study aimed to develop flood risk shelter suitability maps using Analytic Hierarchy Process (AHP) Geographical Information System (GIS) integration. Several flood-related factors that used such as elevation, population, slope, land cover, distance from a river, drainage density, road, settlement, soil type. Results...

Abstract. Land use activities within a basin serve as one of the contributing factors which cause deterioration river water quality through its potential effect on erosion. Sediment yield in form suspended solid body is transported to coastal area occurs sign lowering quality. Hence, aim this study was determine soil loss using Revised Universal Soil Loss Equation (RUSLE) model and sediment yield, Geographical Information Systems (GIS) environment selected sub-catchments Pahang River Basin....

Mangrove trees have a crucial role in providing habitat and breeding for various aquatic species averting coastal erosion caused by strong waves, tidal surges, storm surges. Currently, the mangrove area along Sungsang coast South Sumatra, Indonesia, has been degraded human activities like agriculture, fish ponds, other infrastructure developments. In this study, we used normalized difference built-up index (NDBI), vegetation (NDVI), land surface temperature (LST) analysis observing urban...

Due to its effect on weather and propensity cause catastrophic incidents, climate change has garnered considerable global attention. Depending the area, effects of may vary. Rainfall is among most significant meteorological factors associated with change. In Malaysia, changes in rainfall distribution pattern have led many floods droughts events which lead La Nina El Nino where Johor one states southern part that usually affected. Thus, trend analysis important identify as it gives an initial...

Abstract Background Urban heat island (UHI) is an urban climate phenomenon that primarily responds to conditions and land use change. The extent of hard surfaces significantly influences the thermal properties land. To address this issue, a novel approach quantifying association between UHI developed. This study offers new technique for effectively estimating effect on intensity using combination index (UHII) contribution (LCI) derived from Landsat 8 OLI images. time-series can be determined...

Currently, many countries all over the world are facing second wave of COVID-19. Therefore, this study aims to analyze spatial distribution COVID-19 cases, epidemic spread rate, pattern during first waves in South Sumatra Province Indonesia. This used geographical information system (GIS) software map cases and rate. The autocorrelation was carried out using Moran's I, while Pearson correlation examining relationship between meteorological factors Most infected areas direction virus were...

Penyelidikan ini bertujuan untuk menilai status kualiti tanah di Pulau Orang Utan Bukit Merah (BMOUI), menfokuskan kepada ciri fiziko-kimia, kandungan nutrien dan kepekatan logam berat. BMOUI adalah satu-satunya pusat rehabilitasi pemuliharaan orang utan yang terdapat Semenanjung Malaysia. Sebanyak sepuluh stesen persampelan atas (0-30 cm) telah diambil BMOUI. Parameter fiziko-kimia dianalisis taburan saiz zarah, bahan organik (BOT), pH, kekonduksian elektrik (KE), kapasiti pertukaran kation...

Penggunaan amang lombong emas (ALE) dan sisa plastik mikro (SPM) mampu mengurangkan kesan masalah lambakan sisa. Penghasilan bata geopolimer (BGP) menggunakan industri sebagai bahan pengikat tanpa melibatkan pembakaran berpotensi alternatif kepada konvensional simen portland biasa (OPC). Kajian ini bertujuan melihat pengaruh penambahan SPM terhadap sifat mekanik yang dibangunkan daripada emas. Ujian larutresap turut dilakukan bagi penggunaan pelepasan beberapa logam berat terpilih. Sampel...

Class imbalance poses a significant challenge in water quality classification, often leading to biased predictions and diminished accuracy for minority classes. This study introduces SMOTE-PCA-HDBSCAN, novel oversampling framework that integrates the Synthetic Minority Oversampling Technique (SMOTE) generate synthetic samples, Principal Component Analysis (PCA) enhance data separability, Hierarchical Density-Based Spatial Clustering of Applications with Noise (HDBSCAN) remove noise. The...

There has been increasing concern in recent years regarding toxic elements transfer the soil-plant system. Soils developed on serpentinitic rocks have serious limitations for agriculture. They high levels of magnesium (Mg) and heavy metals such as nickel (Ni), chromium (Cr), cobalt (Co), manganese (Mn) are deficient some essential macronutrients. The continuous accumulation serpentine soil downward Ranau Valley paddy field brings by excessive erosion rainfalls through main irrigation systems...

It is widely recognized that vegetation plays a significant role in contrasting slope instability through the root reinforcement. The main objectives of this paper are to evaluate tensile selected Pennisetum species, namely, P. pedicellatum (PPd) and polystachion (PPl), determine soil shear strength root-permeated from these species. species were initially planted polybags using hydroseeding technique. A mineral fertilizer NPK ratio 10 : 8 was adopted mixture. Routine watering program...

World Health Organization has reported fifty countries have now detected the new coronavirus (B.1.1.7 variant) since a couple of months ago. In Indonesia, B.1.1.7 cases been found in several provinces January 2021, although they are still lower number than old variant COVID-19. Therefore, this study aims to create forecast analysis regarding occasions COVID-19 and based on data from 1st 18th March also analyze association between meteorological factors with incidences three different...

The tin tailing processing industry in Malaysia has operated with minimal regard and awareness for material management working environment safety, impacting the workers aspects of radiation heavy metal exposure. RIA was conducted where environmental samples were analyzed, revealing concentrations 226Ra, 232Th 40K between range 0.1–10.0, 0.0–25.7, 0.1–5.8 Bq/g respectively, resulting AED exceeding UNCEAR recommended value regulation limit enforced by AELB (1 mSv/y). Raeq calculated indicates...

Abstract Land fires lead to a deterioration of environmental quality and have perilous social economic aspects. One method for mitigating this hazard is determine the range fire risk areas. Thus, study aimed analyze current potential future in Ogan Komering Ilir, southern Sumatra region Indonesia, using CMIP6 data geospatial technology. In order areas, Landsat 8 satellite image from 2021 (as baseline period) was used. Variables like normalized difference moisture index (NDMI), vegetation...

The demand for land in conjunction to infrastructure development is become crucial and expensive.In the near future, a problematic soil such as peat becoming final alternative.In cases, cannot be avoided has been hosted engineering structures (e.g., road, highway, railway bridge).Peat well established of its downgraded characteristics, highly compressibility low shear strength.This study aimed investigate effect fly ash gypsum on mechanical properties soil.Fly Ash (FA) by-product material...

For the first time in 21st century, many nations have been forced to conduct a lockdown that restricts their industrial, transportation, and social activities avoid extensive COVID-19 spread. Therefore, our study aimed analyze status of water quality was measured by suspended particulate matter (SPM) Sungai Langat, Selangor, Malaysia using remote sensing technique. The concerned with rivers located distinct land-use areas such as high-density urban, low-density agricultural areas. period...

Background and Objective: In oil palm plantation, the fertilization is most prominent for nutrient status evaluation costly manageable input in cultivation.At this moment, economic significance of management palm, acquisition accurate timely information about its agronomy becoming a critical issue realization best strategies.Hence, objective study was to map plantation Selangor, Malaysia by using Geographic Information System (GIS) technique.Materials Methods: To prepare samples determine...