The pond aquaculture sector in Bangladesh expands rapidly. Total fish production from pond aquaculture increasing day by day. Bangladesh ranks fifth in aquaculture production and becomes fourth in the tilapia production in the world. Total fish production in Bangladesh was about 4.27 million MT in 2017-18 fiscal years and the pond aquaculture production was about 1.9 million MT which contributes about 44.43% of the total fisheries production in 2017-18. That means pond aquaculture contributes a ...

Natural Geography 

Doi:10.46281/bjmsr.v2i2.645

The Fetzara basin occupying an area of about 515 km2 is a part of the alluvial deposits of the Annaba plain. The main source of irrigation water in Fetzara basin is groundwater, hence its quality needs to be controlled; otherwise it can damage soil and reduce crop production. The aim of this study was to review hydro chemical processes that control the groundwater chemistry and to determine the suitability of groundwater for irrigation. Hydro chemical analysis has been carried out based on conce...

Natural Geography  Environmental Sciences 

Doi:-

A CO2 water to water heat pump system was used to investigate the effects of throttle valve opening and water flow rates at higher charge capacity (149% of the full charge). It was observed that the throttle opening affects the gas cooler pressure (and inlet temperature) where the less the opening the higher the pressure. Although the increase in gas cooler pressure was improving the gas cooler heat output and therefore the system efficiencies, there is an optimum pressure which when exceeded, t...

Atmospheric Sciences  Natural Geography  Geomorphology  Environmental Sciences 

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Salah satu kota di ujung timur Jawa Timur yakni Kota Banyuwangi mempunyai potensi pertambangan berada di satu kawasan Desa Sumber Agung, Kecamatan Pesanggaran Kabupaten Banyuwangi. Pertambangan di areal ini sangat unik yakni ada 7 Bukit yang mengandung tambang tersebut. Gunung itu terkenal dengan nama “Bukit Tumpang Pitu” dengan luasan mencapai 11.621,45 Ha. Sejak tahun 2000 masyarakat wilayah ini secara tradisionil sudah banyak yang mengetahuinya dan masyarakat banyak yang mencoba beralih...

Natural Geography  Economics  Education  Anthropology  Demography 

Doi:10.12962/j24433527.v7i1.596

Menurut Ecoton (2014), di Kecamatan Driyorejo dan Wringinanom Kabupaten Gresik sepanjang kanan kiri Kali Surabaya terdapat lebih dari 1.000 bangunan permukiman, tempat usaha dan sarana umum yang dibangun secara permanen di atas sempadan Kali Surabaya. Sementara itu Dinas Pengairan Provinsi jawa Timur mengidentifikasikan di sepanjang Kali Surabaya yang melewati Kecamatan Wringinanom dan Driyorejo terdapat 1.191 bangunan yang dibangun di daerah sempadan sungai. Di antaranya adalah pembangunan guda...

Natural Geography  Human Geography  Demography 

Doi:10.12962/j24433527.v7i2.589

This study focuses on the graphical and mathematical representations of some important hydrological datasets (annual and monthly mean flow, flood hydrographs) available for Dragoia hydrometric station, situated in the south of the upper sector of Desnatui river basin, the biggest first order tributary of Danube river between Jiu river and Cerna river. The data entries were evaluated after the frequential hydrology principles, the temporal scenario revealed by the calcula being correlated to the ...

Hydrology  Natural Geography 

For centuries, the oasis dwellers of the Béni Ounif used techniques for acquisition of groundwater to meet the domestic needs of the population of Ksar and garden irrigation. The oasis dwellers were able to master the management of water through these processes. Despite a low annual rainfall, they were able to manage critical situations of prolonged droughts while protecting their environment. These ancient techniques such as traditional wells including foggaras have proven effective in the past...

Hydrology  Natural Geography 

Bankfull hydraulic geometry relationships, also called regional curves, relate bankfull stream channel dimensions and discharge to watershed drainage area. This paper describes results of bankfull curve relationships developed for the temperate rainforests of the Southern Appalachian Mountains primarily on Western North Carolina Mountain streams in the Southeastern United States. Gauge stations for small and larger catchments were selected with a range of 10 to 50 years of continuous or peak dis...

Hydrology  Natural Geography  Geomorphology