Sriwijaya Journal of Environment最新文献

{"title":"Demographic Rise Effect on Water Supply Systems in Urban Higher Learning Institutions; Case Study of Kenyatta University","authors":"M. Makokha, J. Obando, Z Omweri","doi":"10.22135/sje.2019.4.2.85-96","DOIUrl":"https://doi.org/10.22135/sje.2019.4.2.85-96","url":null,"abstract":"In the past ten years, public institutions including Kenyatta University have experienced a surge in population growth, exacerbated by a demand for higher education. The university population has increased eight times more between the year 2006-2016 leading to inadequacy in accommodation services within university premises, thus three quarters of these students reside in the neighboring areas. This study aimed at looking at the impact of this population increase on the water systems. Quantitative and qualitative methods were employed; three FGDs, key informant interviews and 220 respondents were interviewed comprising of; students, households, caretakers and small business owners. The study established that 62% of the residents used water from municipal water integrated to borehole supply. There were high water shortages marked with rationing as supply was only 2-3 times a week during student peak sessions. Most residents reverted to boreholes that were sunk without following set standards. 60% stored water in locally made tanks with low storage capacity inadequate to meet demand. The respondents felt the need to have an integrated holistic approach and coordination among all relevant stakeholders including; government, management institutions, households, students, public institution administrators, and businesses in order to comprehensively manage the water resources effectively.","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87797751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Yield Response and Water Productivity for Rice Growth With Several Irrigations Treatment in West Java","authors":"H. Sosiawan, W. Annisa","doi":"10.22135/sje.2019.4.2.109-116","DOIUrl":"https://doi.org/10.22135/sje.2019.4.2.109-116","url":null,"abstract":"As the challenges toward increasing water for irrigation and water scarcity threats become more prevalent, knowledge of crop yield response to water can facilitate the development of irrigation strategies for improving agricultural productivity.  Experiments were conducted to to compare water usage of several irrigation treatment on rice growth performance and productivity and its water use efficiency.  These experiments were conducted using Situbagendit rice variety (115 day length periode), Urea and Tri Super Phospate fertilizer.  Fertilizer dosage follows fertilizer recommendations for rice, i.e : Urea 250 kg/ha, SP-36 100 kg/ha and 100 kg KCl/ha. Irrigation started from land preparation. controll block (deep flooding) was flooded by a water height of 7 cm. Low level continues flow block was flooded by a water height of 3-5 cm. The volume of water used to saturate the soil of the saturated block was estimated. The number of days of non-flooded soil in AWD before irrigation is applied can vary from 1 day to more than 5 days.  The results showed that total volume of water supplied during the rice growing period in the control block was  2,761.91 m3. Total water volume related to the low level continous flow irrigation block was about 1,217.03 and only about  638.98 m3 for the alternate wet and dry irrigation block. Total volume supplied for soil saturation treatment was about 549.74 m3. Regardless the performance of rice crop growth, it’s the most efficient treatment in terms of water use. It only required an amount of water around14-20 % of amount of water consumed by the continuous deep flooding treatment.  The rice yield of deep flooding irrigation treatment was equivalent to 5.6 tons/ha of dry paddy while the yields of low level continuous flow irrigation,alternate wet and dry irrigation and soil saturation treatments reached 5,3 tons/ha,3.36 tons/ha and 2.80 tons/ ha respectively","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91269990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regression Analysis of Strong El-Nino and La-Nina Periode to Groundwater Availability in Palembang City","authors":"Rezfiko Agdialta","doi":"10.22135/sje.2019.4.2.97-103","DOIUrl":"https://doi.org/10.22135/sje.2019.4.2.97-103","url":null,"abstract":"El-Nino results in reduced air mass in most parts of Indonesia and can cause drought. In the La-Nina phase some parts of Indonesia will get more water vapor resulting in increased frequency of rain. Increased rainfall has an impact on  groundwater availability. Groundwater  availability illustrates the condition of water in the soil which is useful in many sectors of life, especially in the agricultural sector. This study aims to see the relationship between the El Nino and La Nina phenomena strongly by using SOI indicators on groundwater availability in Palembang. In the Strong El-Nino phase in 1994 and 1997 the SOI index had a moderate correlation with  groundwater availability of 32% and 39%. In 2015 the correlation of SOI to groundwater avability was 79% indicating a strong relationship. In 2008 and 2011 which was a strong La-Nina phase the SOI index correlation value for groundwater availability was 46% and 45%, respectively, which indicated a moderate correlation.","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91143748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilization of Lime Derived From Mussel Freshwater Shells (Pilsbryoconcha exilis) to Increase Swamp Water pH For Catfish (Pangasius sp.) culture","authors":"D. Jubaedah, M. Marsi, M. Wijayanti, Fifi Jayanti Putri","doi":"10.22135/sje.2019.4.2.59-63","DOIUrl":"https://doi.org/10.22135/sje.2019.4.2.59-63","url":null,"abstract":"The water pH of swamp land is generally low (below 4) and becomes a constraint in catfish culture that requires pH 6.5-8.5. In this current study, the low pH value of water was overcome by liming using lime produced from the mussel freshwater shells. The purposes of this study were to determine the best dosage of lime derived from mussel freshwater shells to increase the pH of swamp water, as well as its effect on the survival rate and growth of catfish fingerlings. This study used Completely Randomized Design (CRD) with 5 treatments and 3 replications. The treatments used were the different dosages of lime derived from mussel freshwater shells (P1=4,000, P2=5,000, P3=6,000, P4=7,000 kg/ha equivalent CaO) and calcite (CaCO 3 ) as control (P5= 6,000 kg/ha equivalent CaO). The result showed that P4 was the best treatment according to data of swamp water pH increased from 3.4 to 8.23, soil pH increased from 3.4 to 8.22, survival rate (100%), absolute growth of weight (56.59 g) and length (13.37 cm) and feed effeciency (113.06%).","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76581056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Water And Land Productivity of Lettuce (Lactuca sativa) Cultivation on Floating Pot in Wetland","authors":"Lily Endah Diansari","doi":"10.22135/sje.2019.4.2.104-108","DOIUrl":"https://doi.org/10.22135/sje.2019.4.2.104-108","url":null,"abstract":"The objective of this study was to determine the values of water productivity and land productivity at the floating pot on wetland and to find out whether the floating pots were optimal or not for agriculture in wetlands. The planting media used were mineral soil, and peat soil consisting of 0%, 30%, 50%, 70% and 100% each of which had hydraulic conductivity values respectively except the 100% was 36.07 cm/hour, 38.33 cm/hour, 51.23 cm/hour and 69.60 cm/hour. The water delivery used was legacy cloth which had hydraulic conductivity value was 158.4 cm/hour. The floating pots were applied to the experiment tank in the greenhouse. The decrease in water level in the experimental pool was total evapotranspiration for all plants in five types of planting media. Water level reduction during the 41-days planting period was 40.56 mm with a total water volume was 0.081 m 3 . The productivity values of land and water in the 0%, 30%, 50%, 70% and 100% peat planting media, respectively were 1.29, 1.25, 1.06, 0.8 dan 0 kg/m 2 dan 1.63, 1.63, 1.38, 1.04 dan 0 kg/m 3 . The objective of this study was to determine the values of water productivity and land productivity at the floating pot on wetland and to find out whether the floating pots were optimal or not for agriculture in wetlands . The planting media used were mineral soil, and peat soil consisting of 0%, 30%, 50%, 70% and 100% each of which had hydraulic conductivity values respectively except the 100% was 36.07 cm/hour, 38.33 cm/hour, 51.23 cm/hour and 69.60 cm/hour. The water delivery used was legacy cloth which had hydraulic conductivity value was 158.4 cm/hour. The floating pots were applied to the experiment tank in the greenhouse. The decrease in water level in the experimental pool was total evapotranspiration for all plants in five types of planting media. Water level reduction during the 41-days planting period was 40.56 mm with a total water volume was 0.081 m 3 . The productivity values of land and water in the 0%, 30%, 50%, 70% and 100% peat planting media, respectively were 1.29, 1.25, 1.06, 0.8 dan 0 kg/m 2 dan 1.63, 1.63, 1.38, 1.04 dan 0 kg/m 3 . Normal 0 false false false IN X-NONE X-NONE /* Style Definitions */ \u0000 table.MsoNormalTable \u0000 {mso-style-name:\"Table Normal\"; \u0000 mso-tstyle-rowband-size:0; \u0000 mso-tstyle-colband-size:0; \u0000 mso-style-noshow:yes; \u0000 mso-style-priority:99; \u0000 mso-style-parent:\"\"; \u0000 mso-padding-alt:0cm 5.4pt 0cm 5.4pt; \u0000 mso-para-margin-top:0cm; \u0000 mso-para-margin-right:0cm; \u0000 mso-para-margin-bottom:8.0pt; \u0000 mso-para-margin-left:0cm; \u0000 line-height:107%; \u0000 mso-pagination:widow-orphan; \u0000 font-size:11.0pt; \u0000 font-family:\"Calibri\",\"sans-serif\"; \u0000 mso-ascii-font-family:Calibri; \u0000 mso-ascii-theme-font:minor-latin; \u0000 mso-hansi-font-family:Calibri; \u0000 mso-hansi-theme-font:minor-latin; \u0000 mso-fareast-language:EN-US;}","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"16 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72403952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Land and Water Management In Pineapple and Sengon Agroforestry Systems in Peatland","authors":"M. Imanudin, Satria Jp, M. Said, R. Romadhon","doi":"10.22135/sje.2019.4.2.64-77","DOIUrl":"https://doi.org/10.22135/sje.2019.4.2.64-77","url":null,"abstract":"","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83961436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing Habitat Conservation Suitable For Nam Xouang Reservoir, Vientiane Province, Lao PDR","authors":"Dina Muthmainnah, A. H. Rais, Dongdavanh Sibouthong","doi":"10.22135/sje.2019.4.2.78-84","DOIUrl":"https://doi.org/10.22135/sje.2019.4.2.78-84","url":null,"abstract":"The establishment of the conservation area considers the most important issues of the environment changing in inland waters of ASEAN Countries. To respond this issue, a study was conducted in Nam Xouang Reservoir, Lao PDR, in 2018. To determine the conservation area, data and information were collected by mapping the deep waters area of spawning grounds, feeding ground, fishing seasons, and fish species caught. The data was collected with the support of six enumerators in upper-side and downside of the reservoir to identify the fish species and fish length-weight data. Results showed that built the display boards and warning signs is an effective way of considering simultaneously, to inform the local villagers about the fishing regulations and fish conservation zones. The participation of local fishing communities and local authorities might be necessary for the successful and sustainable management of the fisheries in the Nam Xouang Reservoir.","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85613244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implementation of Social Forestry Policy Around The Meranti Sungai Merah Protection Forest Area","authors":"Heripan Heripan, Ridhah Taqwa, D. Priadi, Noril Milantara, Jun Harbi","doi":"10.22135/SJE.2019.4.1.42","DOIUrl":"https://doi.org/10.22135/SJE.2019.4.1.42","url":null,"abstract":"One of the concrete efforts made by the Indonesian government is through social forestry policy as a trigger for land conflicts. One area that has implemented a pattern of social forestry is a forest area located in the management area of the Regional Technical Implementation Unit(UPTD) KPHRegion I Meranti located in Musi Banyuasin Regency. Only 3 social forestry scheme permits have been issued. So the aims of this study was to find out and analyze the process of implementing social forestry policy and analyze the factors that influence. The study was conducted in Pangkalan Bulian and Lubuk Bintialo Villages, Batang Hari Leko District, Musi Banyuasin Regency, South Sumatra Province. Used descriptive method combined (mixed methods) from two different approaches namely quantitative or qualitative approaches. Funding and staff resources (human resources) are still lacking. The process of collective action between actors is running well with the existence of a committed PPS Working Group. Technical rules are clear with the existence of SOPs that are derived from the rules of government and local government.Communication goes well between communities (Forest farmer groups and cooperative members) - local government and facilitators, but not so well between government structures (village heads and apparatus and local government.The Social forestry policy in Musi Banyuasin District, South Sumatra has been effectively implemented from the perspective of policy accuracy in resolving forestry problems and environmental accuracy in accepting policies.","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79557409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Benefit of Bed Raising to Manage Acid Sulphate Soil Under Industrial Forest Plantations Area","authors":"A. Martinus, D. Setyawan, Y. Windusari","doi":"10.22135/SJE.2019.4.1.32","DOIUrl":"https://doi.org/10.22135/SJE.2019.4.1.32","url":null,"abstract":"Industrial Forest Plantations (IFP) are intended to increase the productivity non-productive natural forest production. In South Sumatra Province IFP is widely developed in wetlands; one of them is in acid sulphate soils which have major problems with flooding and waterlogging. To solve this problem, the technology other than  making drainage canals is Bed Raising. Bed Raising is to make beds to facilitate the implementation of planting, maintenance and harvesting, in addition to maintaining good soil aeration conditions. However, Bed Raising on acid sulphate soil raises a new problem is pirite oxidation, which affects the chemical properties of acidic sulphate soil. The purpose of this study was to see the benefits of bed raising in the management of acid sulphate land in IFP areas. This study uses survey methods and data are presented in tabulations. The results of this study indicate that the benefits of bed raising in the management of acid sulphate land are no longer flooded or waterlogging. While the results of chemical analysis of soil in bed raising plots are very acidic soil pH (pH 70%), and high pyrite concentration (> 2.4%). This value is not suitable for plant growth.","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"111 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91008715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overview of trends in crude palm oil production and economic impact in Malaysia","authors":"K. Muda, E. H. Ezechi","doi":"10.22135/SJE.2019.4.1.19","DOIUrl":"https://doi.org/10.22135/SJE.2019.4.1.19","url":null,"abstract":"Palm oil has become a major edible and economic commodity with applications in various domestic and industrial processes. Malaysia is the second largest producer and exporter of crude palm oil (CPO). The oil palm industry in Malaysia significantly expanded and has become a major economic sector. The global demand of this precious commodity as food and fuel has caused a significant upsurge in production of oil palm. A tremendous increase of CPO production has been witnessed in the Malaysian oil palm industry over a decade now. The CPO production in 2011 was about 11.8 million tonnes but skyrocketed to 19.92 million tonnes in 2017. Beyond the revenue generation from the oil palm industry in Malaysia, there is significant investment in research and development that has resulted in the discovery of more sustainable ways to manage oil palm waste. This overview therefore seeks to evaluate the trend in crude palm oil production in Malaysia and its economic contribution to the nation from 2007-2017. Various indices associated with crude palm oil production such as planted land area, volume of exported CPO, revenue generated from the exported CPO, average annual price of exported CPO, fresh fruit yield and oil extraction rate was discussed. This overview is limited to crude palm oil production within 2007-2017 and seeks to discuss the trend within the context of the timeframe.","PeriodicalId":31278,"journal":{"name":"Sriwijaya Journal of Environment","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73424049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}