Journal of Environmental Science and Management最新文献_第8页

Exploring Spatial Relationship Between Electrical Conductivity and Spectral Salinity Indices in the Mekong Delta 湄公河三角洲电导率与光谱盐度指数的空间关系探讨

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2020-06-30 DOI: 10.47125/jesam/2020_1/05

T. Tran, D. Tran, Hoa Pham, Tuan Truong, H. Trinh, Dung Nguyen, Binh Nguyen, H. Nguyen

{"title":"Exploring Spatial Relationship Between Electrical Conductivity and Spectral Salinity Indices in the Mekong Delta","authors":"T. Tran, D. Tran, Hoa Pham, Tuan Truong, H. Trinh, Dung Nguyen, Binh Nguyen, H. Nguyen","doi":"10.47125/jesam/2020_1/05","DOIUrl":"https://doi.org/10.47125/jesam/2020_1/05","url":null,"abstract":"The negative impact of salinization concurrent with drought is a severe problem that creates challenges for agriculture in deltas and coastal lowlands. This study aims to investigate the spatial relationship among the field measured electrical conductivity (EC) and spectral salinity indices derived from Remote sensed data in the Mekong Delta using Geographically Weighted Regression (GWR). A wide range of Landsat 8 Operational Land Images (OLI) products, including single bands, band ratios, vegetation indices (NDVI and EVI), intensity indices (INT), and brightness indices (BI) were employed for computing salinity indices. The Kriging and Co-kriging interpolation techniques were used to estimate the spatial pattern of the field measured EC. Additionally, the Ordinary Least Square (OLS) regression were employed to characterize the relationship between single bands and EC measurement before applying the GWR for exploring the spatial correlation among the indices. There was a gradually increased of EC value from inland to coastal area. A significant relationship between EC measurement and spectral salinity indices and the highest correlation coefficient with p value less than 0.05 was found in EVI (r2 = 0.736). This study demonstrated that the GWR is germane to analyse the spatial correlation among the mentioned variables in the study area. Moreover, it also revealed that spectral salinity indices could be an alternative option for EC measurement in monitoring salt water intrusion at coastal areas.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49565631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Crown Fuel Characteristics and Allometric Equations of Pinus densiflora in Gyeongbuk Province, Korea 韩国庆北省赤松树冠燃料特性及异速方程

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2020-06-30 DOI: 10.47125/jesam/2020_1/03

S. Kim, R. I. Lumbres, Y. Seo, M. Jang, Sun Joo Lee, Byungdoo Lee, Young Jin Lee

{"title":"Crown Fuel Characteristics and Allometric Equations of Pinus densiflora in Gyeongbuk Province, Korea","authors":"S. Kim, R. I. Lumbres, Y. Seo, M. Jang, Sun Joo Lee, Byungdoo Lee, Young Jin Lee","doi":"10.47125/jesam/2020_1/03","DOIUrl":"https://doi.org/10.47125/jesam/2020_1/03","url":null,"abstract":"The crown fuel characteristics of the most dominant coniferous species in Korea, Pinus densiflora, were investigated in Gyeongbuk province, Korea. Allometric equations using DBH as independent variable were also developed for the estimation of crown fuel load (needles, branches: <0.5 cm, 0.5-1 cm, 1-2 cm, and 2-4 cm in diameter), crown volume, and aboveground biomass. The average crown bulk density in Youngju and Bonghwa was 0.47 kg m-3, while in Daegu, it was 0.29 kg m-3. The crown bulk density of needles and branches with a diameter of <1 cm was 0.21 kg m-3in Youngju, 0.27 kg m-3 in Bonghwa, and 0.13 kg m-3 in Daegu. The average crown base height was 5.10 m in Youngju, 5.20 m in Daegu, and 3.60 m in Bonghwa. Overall, the Pinus densiflora stand in Bonghwa is more hazardous if crown fire occurs compared to the other study sites based on different crown fuel characteristics. The allometric models developed were able to explain at least 79% of the observed variation in the biomass and crown volume. For the aboveground biomass, Daegu had the highest mean tree biomass with 103.54 kg, followed by Youngju (67.35 kg) and then Bonghwa (37.72 kg).","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44366638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimation of Basic Wood Density and its Uncertainty for Quercus Species in South Korea 韩国栎属树种基本木材密度的估算及其不确定性

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2020-06-30 DOI: 10.47125/jesam/2020_1/02

J. Pyo, R. I. Lumbres, Y. Son, Kyeong-hak Lee, Young Jin Lee

{"title":"Estimation of Basic Wood Density and its Uncertainty for Quercus Species in South Korea","authors":"J. Pyo, R. I. Lumbres, Y. Son, Kyeong-hak Lee, Young Jin Lee","doi":"10.47125/jesam/2020_1/02","DOIUrl":"https://doi.org/10.47125/jesam/2020_1/02","url":null,"abstract":"Basic wood density is recommended by the Intergovernmental Panel on Climate Change as one of the parameters that can accurately estimate carbon stocks of trees. This study was conducted to estimate the basic wood density of Quercus acutissima, Quercus mongolica, Quercus serrata, and Quercus variabilis in South Korea and to determine their uncertainty. Water displacement method was used to determine the fresh volume of the cubic specimen without bark while the oven-dry weight was determined through oven-drying with a temperature of 85°C until it reached the constant weight. The basic wood density and uncertainty were 0.695 g cm-3 and 2.59% for Q. acutissima, 0.663 g cm-3 and 3.33% for Q. mongolica, 0.664 g cm-3 and 6.60% for Q. serrata and 0.721 g cm-3 and 1.66% for Q. variabilis, respectively. Analysis of variance showed that there is a significant difference in terms of the basic wood density of the four Quercus species (p<0.001). The results of this study on the basic wood density and uncertainty of the different Quercus species are essential in providing accurate information for estimating the biomass of Quercus forests.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42683950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Future Adaptability of Urban Trees due to the Effects of Climate Change: the Case of Artvin, Turkey 气候变化影响下城市树木的未来适应性：以土耳其Artvin为例

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2020-06-30 DOI: 10.47125/jesam/2020_1/07

Derya Sarı, B. Karaşah

引用次数: 1

Insights from Early Mathematical Models of 2019-nCoV Acute Respiratory Disease (COVID-19) Dynamics 2019-nCoV急性呼吸道疾病(COVID-19)动态早期数学模型的启示

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2020-02-13 DOI: 10.47125/jesam/2020_1/01

J. Rabajante

{"title":"Insights from Early Mathematical Models of 2019-nCoV Acute Respiratory Disease (COVID-19) Dynamics","authors":"J. Rabajante","doi":"10.47125/jesam/2020_1/01","DOIUrl":"https://doi.org/10.47125/jesam/2020_1/01","url":null,"abstract":"In December 2019, a novel coronavirus (SARS-CoV-2) has been identified to cause acute respiratory disease in humans. An outbreak of this disease has been reported in mainland China with the city of Wuhan as the recognized epicenter. The disease has also been exported to other countries, including the Philippines, but the level of spread is still under control (as of 08 February 2020). To describe and predict the dynamics of the disease, several preliminary mathematical models are formulated by various international study groups. Here, the insights that can be drawn from these models are discussed, especially as inputs for designing strategies to control the epidemics. Proposed model-based strategies on how to prevent the spread of the disease in local setting, such as during social gatherings, are also presented. The model shows that the exposure time is a significant factor in spreading the disease. As crowd density increases, the higher the chance an infected person could infect other people. The attendees of the social gathering should have effective protection or preventive measures (e.g., administrative and engineering controls) to minimize further disease transmission.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47013257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 60

Assessment of the Household’s Flood Social Vulnerability in Vietnam’s Mekong River Delta 越南湄公河三角洲家庭洪灾社会脆弱性评估

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2019-12-29 DOI: 10.47125/jesam/2019_2/04

H. Anh, Trần Minh Dạ Hạnh, Shun-bo Yao

引用次数: 1

Microbial Biofertilizers and Soil Amendments Enhanced Tree Growth and Survival in a Barren Mined-out Area in Marinduque, Philippines 微生物生物肥料和土壤改良剂增强了菲律宾Marinduque一个贫瘠采矿区的树木生长和存活

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2019-12-29 DOI: 10.47125/jesam/2019_2/08

N. Aggangan, Julieta A. Anarna

{"title":"Microbial Biofertilizers and Soil Amendments Enhanced Tree Growth and Survival in a Barren Mined-out Area in Marinduque, Philippines","authors":"N. Aggangan, Julieta A. Anarna","doi":"10.47125/jesam/2019_2/08","DOIUrl":"https://doi.org/10.47125/jesam/2019_2/08","url":null,"abstract":"A bioremediation protocol was developed for rehabilitating mine tailing areas using microbial biofertilizers and soil amendments. The effects on the growth and survival of tree species in a three-decade barren mined-out area in Barangay Capayang, Mogpog, Marinduque, Philippines were also determined. Three concurrent field experiments were established in June 2016 using Pterocarpus indicus, Acacia mangium and Eucalyptus urophylla. Treatments for this study were uninoculated seedlings and seedlings inoculated with mycorrhiza (MYKORICH® for P. indicus) or Surigao isolate (for A. mangium and E. urophylla) with and without nitrogen-fixing bacteria. Aseptically germinated seedlings were inoculated when they were transplanted from seed boxes into individual polybags. After six months, the seedlings were planted in the mined-out area following Randomized Complete Block Design. The excavated soil were mixed with 1 kg vermicompost and 500 g lime before backfilling the 30 cm3 planting hole. After one month, 10 g NPK fertilizer and 5 g urea were applied on each seedling. Microbial-inoculated seedlings showed better growth performance with higher plant dry weight and microbial population compared to the uninoculated plants after 27 months. Hence, P. indicus, A. mangium, and E. urophylla inoculated with arbuscular mycorrhizal fungi and applied with lime, vermicompost, and basal inorganic fertilizer could be effective as reforestation species in barren mined-out areas.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47553222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Status of Mammals in the Expansion Sites of the Mt. Hamiguitan Range Wildlife Sanctuary, Mindanao, Philippines 菲律宾棉兰老岛哈米吉坦山脉野生动物保护区扩建现场的哺乳动物状况

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2019-12-29 DOI: 10.47125/jesam/2019_2/02

V. Amoroso, A. Mohagan, F. Coritico, S. H. Laraga, Noel E. Lagunday, Kim Lee Domingo, R. D. Colong, R. Ponce

引用次数: 3

Forest Road Network Design based on Multipurpose Forestry Management in Hyrcanian Forest 基于多功能林业管理的海尔坎森林公路网设计

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2019-12-29 DOI: 10.47125/jesam/2019_2/03

S. A. Hosseini, Parisa Moghadasi, A. Fallah

{"title":"Forest Road Network Design based on Multipurpose Forestry Management in Hyrcanian Forest","authors":"S. A. Hosseini, Parisa Moghadasi, A. Fallah","doi":"10.47125/jesam/2019_2/03","DOIUrl":"https://doi.org/10.47125/jesam/2019_2/03","url":null,"abstract":"Traditionally, the main focus of forestry management has been based on wood production but more recently it is directed at multifunctional forest management. Multifunctional forestry management includes many considerations such as ecotourism, ecology, economic and social issues of forest dwellers as well as wood production. This study aims to design forest roads using GIS and satellite data of SPOT-HRG in the Darabkla forest based on Multipurpose Forestry. The study used the multi-criteria evaluation method based on fuzzy logic to assess the potential of land area for a road network. Opinions of experts and scholars were used to select four criteria and 18 sub-criteria for road design. Analytical Hierarchy Process (AHP) was used for weighting factors. Layers were combined using a weighted linear combination (WLC) operator and the map of crossing the road potential was identified and zoned. The road was designed using the PEGGER program. Geographic Information System (GIS) and satellite data of SPOT-HRG were effective tools for improving outcomes. Weighted Linear Combination (WLC) Model for combination layers was used in this study and recommended the multi object operation (MOLA) in future studies.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42861030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Correlation Studies of Arsenic Level In Drinking Water and Blood Samples of Females in District Sheikhupura, Pakistan 巴基斯坦Sheikhupura地区饮用水中砷含量与女性血液样本的相关性研究

IF 0.4 4区环境科学与生态学

Journal of Environmental Science and Management Pub Date : 2019-12-29 DOI: 10.47125/jesam/2019_2/01

Moneeza Abbas, K. Cheema

{"title":"Correlation Studies of Arsenic Level In Drinking Water and Blood Samples of Females in District Sheikhupura, Pakistan","authors":"Moneeza Abbas, K. Cheema","doi":"10.47125/jesam/2019_2/01","DOIUrl":"https://doi.org/10.47125/jesam/2019_2/01","url":null,"abstract":"Arsenic contamination of drinking water has become a major health concern all over the world. Pakistan is also facing an arsenic contamination in drinking water. The present study determine the correlation of arsenic level in drinking water and blood sample of females of District Sheikhupura, Pakistan. The study area for the present research work is District Sheikhupura, which is an industrial as well as an agricultural city in the province of Punjab, Pakistan. The arsenic concentration in drinking water from different sources used by the inhabitants and blood samples of females was measured by using Atomic Absorption Spectrophotometer (AAS). The drinking water of tehsils Sheikhupura and Sharaqpur had higher arsenic as compared to other tehsils (64.25 ± 2.55 μg L-1 and 61.63 ± 2.73 μg L-1) respectively, and was highest in all hands pumping water (71.14 ± 2.6μg L-1). Mean arsenic concentration in blood samples was highest in the age group of 23-25 years (3.2 ± 0.23 μg L-1) and being highest among respondents of tehsil Sheikhupura. A positive correlation between drinking water and blood samples when analyzed with respect to area and drinking water sources was found. Evidences suggest that the presence of arsenic in drinking water is likely to affect general metabolism and its accumulation in human. This appears to be linked with exposure of varying magnitude and duration.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41793722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4