Pub Date : 2020-06-30DOI: 10.47125/jesam/2020_1/05
T. Tran, D. Tran, Hoa Pham, Tuan Truong, H. Trinh, Dung Nguyen, Binh Nguyen, H. Nguyen
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.
{"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":null,"pages":null},"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}
Pub Date : 2020-06-30DOI: 10.47125/jesam/2020_1/03
S. Kim, R. I. Lumbres, Y. Seo, M. Jang, Sun Joo Lee, Byungdoo Lee, Young Jin Lee
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).
对韩国最具优势的针叶树种松(Pinus densiflora)的树冠燃料特性进行了调查。以胸径为自变量建立了异速生长方程，用于估算树冠燃料负荷(针、枝:直径<0.5 cm、0.5-1 cm、1-2 cm和2-4 cm)、树冠体积和地上生物量。荣州和奉化的平均树冠容重为0.47 kg m-3，大邱为0.29 kg m-3。直径<1 cm的针和枝的树冠容重分别为荣州0.21 kg m-3、奉化0.27 kg m-3和大邱0.13 kg m-3。冠底平均高度分别为荣州5.10 m、大邱5.20 m、奉化3.60 m。总体而言，由于树冠燃料特性的不同，丰化松林分发生树冠火灾的危险性比其他研究地点更大。所建立的异速生长模型能够解释至少79%的观测到的生物量和树冠体积变化。地上生物量以大邱最高，为103.54 kg，其次是永州(67.35 kg)和奉化(37.72 kg)。
{"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":null,"pages":null},"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}
Pub Date : 2020-06-30DOI: 10.47125/jesam/2020_1/02
J. Pyo, R. I. Lumbres, Y. Son, Kyeong-hak Lee, Young Jin Lee
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.
政府间气候变化专门委员会建议将基本木材密度作为可以准确估计树木碳储量的参数之一。本研究旨在估算韩国麻栎、蒙古栎、锯齿栎和栓皮栎的基本木材密度，并确定其不确定性。用水置换法测定不含树皮的立方体试样的新鲜体积，同时通过在85°C的温度下烘箱干燥直到达到恒定重量来测定烘箱干燥重量。麻麻的基本木材密度和不确定度分别为0.695 g cm-3和2.59%，蒙古木的基本木材浓度和不确定率分别为0.663 g cm-3、3.33%，锯齿木的基本密度和不确定性分别为0.664 g cm-3及6.60%，可变木的基本木密度和不确定性分别为0.721 g cm-3与1.66%。方差分析表明，四种栎属植物的基本木材密度存在显著差异（p＜0.001）。本研究对不同栎属植物基本木材密度和不确定性的研究结果对于为估算栎林生物量提供准确信息至关重要。
{"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":null,"pages":null},"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}
Pub Date : 2020-06-30DOI: 10.47125/jesam/2020_1/07
Derya Sarı, B. Karaşah
Global climate change began to affect urban and rural landscape planning decisions. The accurate and efficient use of plants that support urban green infrastructure would play an important role in these decisions. The present study aimed to determine the tolerance of domestic and exotic woody plant species planted in public spaces in Artvin province, Turkey to the effects of climate change. Thus, the tolerance of 59 most prevalent trees and shrubs identified in public spaces and natural fields in 12 sampling areas in Artvin province center, Hopa and Ardanuc district centers were surveyed. Findings of the regression model demonstrated that drought, cold hardiness and precipitation had an impact on the adaptability scores of the plants. The differences between the climate conditions in sample areas had an impact on the future adaptation and tolerance of the plants to climate change. This demonstrated that plant species in urban green areas will be affected not only by the global climate change but also by local climate conditions in the short and long term.
{"title":"Future Adaptability of Urban Trees due to the Effects of Climate Change: the Case of Artvin, Turkey","authors":"Derya Sarı, B. Karaşah","doi":"10.47125/jesam/2020_1/07","DOIUrl":"https://doi.org/10.47125/jesam/2020_1/07","url":null,"abstract":"Global climate change began to affect urban and rural landscape planning decisions. The accurate and efficient use of plants that support urban green infrastructure would play an important role in these decisions. The present study aimed to determine the tolerance of domestic and exotic woody plant species planted in public spaces in Artvin province, Turkey to the effects of climate change. Thus, the tolerance of 59 most prevalent trees and shrubs identified in public spaces and natural fields in 12 sampling areas in Artvin province center, Hopa and Ardanuc district centers were surveyed. Findings of the regression model demonstrated that drought, cold hardiness and precipitation had an impact on the adaptability scores of the plants. The differences between the climate conditions in sample areas had an impact on the future adaptation and tolerance of the plants to climate change. This demonstrated that plant species in urban green areas will be affected not only by the global climate change but also by local climate conditions in the short and long term.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49358771","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}
Pub Date : 2020-02-13DOI: 10.47125/jesam/2020_1/01
J. Rabajante
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.
{"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":null,"pages":null},"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}
Pub Date : 2019-12-29DOI: 10.47125/jesam/2019_2/04
H. Anh, Trần Minh Dạ Hạnh, Shun-bo Yao
Flooding is a natural phenomenon that occurs annually from September to October in Vietnam’s Mekong River Delta (MRD). However, its trend is becoming more destructive and unpredictable in recent years, which tends to threaten people’s livelihood, properties, and health. This study attempted to examine the flood vulnerability among households in 14 districts of the delta. The analysis helped identify communities that were subjected to floods and needed more attention in disaster management. People in the MRD had remarkably low exposure, which was the result of investment in water structures. About 59.2 % of the surveyed households were moderately vulnerable to flooding. Families in O Mon, Thanh Binh, Cai Be, and Cho Lach district had the highest vulnerability indices. The most significant indicators to explain the flood-prone state were rice-related indicators, elderly dependency ratios, and social capital. The study suggested that plans to reduce flood vulnerability should focus on the family’s adaptability because it had the largest impacts.
{"title":"Assessment of the Household’s Flood Social Vulnerability in Vietnam’s Mekong River Delta","authors":"H. Anh, Trần Minh Dạ Hạnh, Shun-bo Yao","doi":"10.47125/jesam/2019_2/04","DOIUrl":"https://doi.org/10.47125/jesam/2019_2/04","url":null,"abstract":"Flooding is a natural phenomenon that occurs annually from September to October in Vietnam’s Mekong River Delta (MRD). However, its trend is becoming more destructive and unpredictable in recent years, which tends to threaten people’s livelihood, properties, and health. This study attempted to examine the flood vulnerability among households in 14 districts of the delta. The analysis helped identify communities that were subjected to floods and needed more attention in disaster management. People in the MRD had remarkably low exposure, which was the result of investment in water structures. About 59.2 % of the surveyed households were moderately vulnerable to flooding. Families in O Mon, Thanh Binh, Cai Be, and Cho Lach district had the highest vulnerability indices. The most significant indicators to explain the flood-prone state were rice-related indicators, elderly dependency ratios, and social capital. The study suggested that plans to reduce flood vulnerability should focus on the family’s adaptability because it had the largest impacts.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42682513","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}
Pub Date : 2019-12-29DOI: 10.47125/jesam/2019_2/08
N. Aggangan, Julieta A. Anarna
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.
{"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":null,"pages":null},"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}
Pub Date : 2019-12-29DOI: 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
Mt. Hamiguitan Range Wildlife Sanctuary is one of the biodiversity hotspots in the Mindanao faunal region, which is home to about 21 species of mammals. This study provides data on mammal assemblage and assessment on the added value of the ca. 2.99 km2 MHRWS expansion sites to the already protected zone. Faunistic inventory and assessment documented 19 species of mammals belonging to 16 genera, eight families and five orders. This adds nine species to the previously reported mammals of Mt. Hamiguitan range making it a home to 30 species. Relatively low diversity of mammals (H’=0.615) in the expansion sites is attributed to poor soil resulting to low forest productivity and habitat loss due to mining, logging and shifting cultivation. This unique assemblage of vulnerable and endemic species of bats and mammals in Mt. Hamiguitan Range Wildlife Sanctuary expansion sites calls for more sampling effort and conservation strategies to maintain its bat and mammal assemblage.
{"title":"Status of Mammals in the Expansion Sites of the Mt. Hamiguitan Range Wildlife Sanctuary, Mindanao, Philippines","authors":"V. Amoroso, A. Mohagan, F. Coritico, S. H. Laraga, Noel E. Lagunday, Kim Lee Domingo, R. D. Colong, R. Ponce","doi":"10.47125/jesam/2019_2/02","DOIUrl":"https://doi.org/10.47125/jesam/2019_2/02","url":null,"abstract":"Mt. Hamiguitan Range Wildlife Sanctuary is one of the biodiversity hotspots in the Mindanao faunal region, which is home to about 21 species of mammals. This study provides data on mammal assemblage and assessment on the added value of the ca. 2.99 km2 MHRWS expansion sites to the already protected zone. Faunistic inventory and assessment documented 19 species of mammals belonging to 16 genera, eight families and five orders. This adds nine species to the previously reported mammals of Mt. Hamiguitan range making it a home to 30 species. Relatively low diversity of mammals (H’=0.615) in the expansion sites is attributed to poor soil resulting to low forest productivity and habitat loss due to mining, logging and shifting cultivation. This unique assemblage of vulnerable and endemic species of bats and mammals in Mt. Hamiguitan Range Wildlife Sanctuary expansion sites calls for more sampling effort and conservation strategies to maintain its bat and mammal assemblage.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45766864","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}
Pub Date : 2019-12-29DOI: 10.47125/jesam/2019_2/03
S. A. Hosseini, Parisa Moghadasi, A. Fallah
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.
传统上，林业管理的主要重点是木材生产，但最近转向多功能森林管理。多功能林业管理包括生态旅游、生态、森林居民的经济和社会问题以及木材生产等诸多考虑。基于多用途林业，利用GIS和SPOT-HRG卫星数据在达拉克拉森林进行森林道路设计。采用基于模糊逻辑的多准则评价方法对路网用地面积潜力进行评价。专家学者的意见被用来选择4个标准和18个子标准的道路设计。加权因子采用层次分析法(AHP)。采用加权线性组合(WLC)算子对各层进行组合，并对过马路电位图进行识别和分区。这条路是用PEGGER程序设计的。地理信息系统(GIS)和SPOT-HRG卫星数据是改善结果的有效工具。本研究采用加权线性组合(Weighted Linear Combination, WLC)模型，为今后的研究提供了多目标操作(multi - object operation, MOLA)的建议。
{"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":null,"pages":null},"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}
Pub Date : 2019-12-29DOI: 10.47125/jesam/2019_2/01
Moneeza Abbas, K. Cheema
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.
{"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":null,"pages":null},"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}
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