L. Kordas, A. Lejman, P. Kuc, Józef Szlachta, M. Fugol, Hubert Prask
The aim of the conducted observations was to examine the effect of fertiliser produced based on plant digestate and resulting from the process of anaerobic fermentation of a substrate with sorghum (20%), beet (60%), rye (10%) and grass (10%) on the growth and yield of sorghum and corn. A strict, single-factor pot experiment was carried out in 2017–2018 in the Swojec Agricultural Experimental Unit at the University of Life Sciences in Wrocław. Fertilisation with digestate was the tested factor, with a focus on its influence on selected energy plants. Sucrosorgo sorghum and Atletico maize were analysed. During the research, the pots were placed in a vegetation hall. The research proved that the use of digestate-based fertiliser improves the productivity of both sorghum and maize, but only with an additional dose of basic macronutrients. The optimal variant is a fertiliser dose of 20 g enriched with 1.0 NPK. Increasing the dose to 30 g and 1.5 NPK generally did not result in a significant increase in plant height or in fresh and dry weights.
{"title":"The Reaction of Maize and Sorghum to Fertilization with Granulated Fertilizer Obtained from Digestate","authors":"L. Kordas, A. Lejman, P. Kuc, Józef Szlachta, M. Fugol, Hubert Prask","doi":"10.15244/pjoes/172049","DOIUrl":"https://doi.org/10.15244/pjoes/172049","url":null,"abstract":"The aim of the conducted observations was to examine the effect of fertiliser produced based on plant digestate and resulting from the process of anaerobic fermentation of a substrate with sorghum (20%), beet (60%), rye (10%) and grass (10%) on the growth and yield of sorghum and corn. A strict, single-factor pot experiment was carried out in 2017–2018 in the Swojec Agricultural Experimental Unit at the University of Life Sciences in Wrocław. Fertilisation with digestate was the tested factor, with a focus on its influence on selected energy plants. Sucrosorgo sorghum and Atletico maize were analysed. During the research, the pots were placed in a vegetation hall. The research proved that the use of digestate-based fertiliser improves the productivity of both sorghum and maize, but only with an additional dose of basic macronutrients. The optimal variant is a fertiliser dose of 20 g enriched with 1.0 NPK. Increasing the dose to 30 g and 1.5 NPK generally did not result in a significant increase in plant height or in fresh and dry weights.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"11 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139228770","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}
The purpose of this paper is to analyze the influencing factors of sustainable development of family grain farms in China. According to related investigation, there is a real problem of lack of social responsibility of grain family farms in China, which restricts their sustainable development. Therefore, based on a sample of 301 family grain farms in China, this paper used multi-classification ordered logit model and mediation effect model to investigate the relationship between perceptions of social responsibility, resource integration ability, and sustainable development of family grain farms. Various studies show that stronger perceptions of social responsibility related to more sustainable development; greater resource integration ability related to more sustainable development; and resource integration ability mediated the relationships between perceptions of social responsibility and sustainable development. Conclusions suggest that improving perceptions of social responsibility, increasing support for improving resource integration ability and giving full play to the mediating role of resource integration ability is needed to bolster the sustainable development of family grain farms.
{"title":"Perceptions of Social Responsibility, Resource Integration Ability and Sustainable Development of Family Grain Farms – Evidence from China","authors":"Wei Duan, Guangqiang Luo","doi":"10.15244/pjoes/173444","DOIUrl":"https://doi.org/10.15244/pjoes/173444","url":null,"abstract":"The purpose of this paper is to analyze the influencing factors of sustainable development of family grain farms in China. According to related investigation, there is a real problem of lack of social responsibility of grain family farms in China, which restricts their sustainable development. Therefore, based on a sample of 301 family grain farms in China, this paper used multi-classification ordered logit model and mediation effect model to investigate the relationship between perceptions of social responsibility, resource integration ability, and sustainable development of family grain farms. Various studies show that stronger perceptions of social responsibility related to more sustainable development; greater resource integration ability related to more sustainable development; and resource integration ability mediated the relationships between perceptions of social responsibility and sustainable development. Conclusions suggest that improving perceptions of social responsibility, increasing support for improving resource integration ability and giving full play to the mediating role of resource integration ability is needed to bolster the sustainable development of family grain farms.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"11 11","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139237994","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}
A. Allaily, Samadi Samadi, Muhammad Daud, Tania Aprilia, Emenda Ninta Dwina, Z. Zulfan, M. A. Yaman, M. N. Rofiq
The purpose of this study was to evaluate the performance of broiler ducks fed ration based on fermented sago pulp using 96 of day old ducks (DOD). The treatment were T0 = 100% commercial ration, T1 10% fermented sago dregs; T2 20% fermented sago pulp, T3 = 30% fermented sago pulp. The design used was a completely randomized design (CRD) consisting of 4 treatments, each treatment was given 4 replications and consisting of 6 DOD. Application of sago pulp for 8 weeks, including 1 week as a pretreatment for adaptation. The results showed that the fermented sago dregs did not have a significant effect (P>0.05) on the average feed consumption and feed conversion of broiler ducks, but had a significant effect (P<0.05) on the average final body weight and weight gain. Histological observations of the intestinal villi showed that fermented sago pulp changed the structure of the villi. Statistical results showed that the width, height, and intestinal surface area of the intestinal villi had a smaller significant effect on each treatment than control. Based on the results of the research, it can be concluded that fermented sago pulp significantly reduced the characteristics and histology of the duck intestine.
{"title":"Utilization of Fermented Sago Pulp and Effect on the Performance of Broiler Ducks","authors":"A. Allaily, Samadi Samadi, Muhammad Daud, Tania Aprilia, Emenda Ninta Dwina, Z. Zulfan, M. A. Yaman, M. N. Rofiq","doi":"10.15244/pjoes/173445","DOIUrl":"https://doi.org/10.15244/pjoes/173445","url":null,"abstract":"The purpose of this study was to evaluate the performance of broiler ducks fed ration based on fermented sago pulp using 96 of day old ducks (DOD). The treatment were T0 = 100% commercial ration, T1 10% fermented sago dregs; T2 20% fermented sago pulp, T3 = 30% fermented sago pulp. The design used was a completely randomized design (CRD) consisting of 4 treatments, each treatment was given 4 replications and consisting of 6 DOD. Application of sago pulp for 8 weeks, including 1 week as a pretreatment for adaptation. The results showed that the fermented sago dregs did not have a significant effect (P>0.05) on the average feed consumption and feed conversion of broiler ducks, but had a significant effect (P<0.05) on the average final body weight and weight gain. Histological observations of the intestinal villi showed that fermented sago pulp changed the structure of the villi. Statistical results showed that the width, height, and intestinal surface area of the intestinal villi had a smaller significant effect on each treatment than control. Based on the results of the research, it can be concluded that fermented sago pulp significantly reduced the characteristics and histology of the duck intestine.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"10 20","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139240555","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}
Monika Bumbalová, Alexander Fehér, M. Prčík, Eleonóra Marišová
Municipalities seem to be indispensable in reaching sustainability at the local level while waste management (WM) plays a crucial role. The WM system is influenced by various variables with the questionable possibility of municipal interventions. The holistic nature of the phenomena resulted in the usage of the redundancy analysis investigating 9 independent determinants and 8 dependent factors of the municipal WM simultaneously. The research was conducted on a sample of 125 municipalities from two Slovak regions, revealing 6 clusters of similarly behaving vectors. Well-defined linkages were found among spatial factors such as altitude, administrative affiliation, and presence of the marginalized groups of inhabitants or in the case of socioeconomic factors such as the number of inhabitants, fees for waste removal, and the creation of illegal landfills. Moreover, the second cluster is negatively correlated with the share of removed illegal landfills and in-house services in the WM and is almost independent of local voluntary activities in the WM and own waste recycling. Various magnitudes of the variables were observed while the number of inhabitants belong to the strongest. Thus, the research has proven that municipalities have the keys to the tools that can influence the analysed ties and support municipal sustainability.
{"title":"Who Holds the Keys to the Management of Municipal Waste and Which Locks of Municipal Sustainability do they Fit Into?","authors":"Monika Bumbalová, Alexander Fehér, M. Prčík, Eleonóra Marišová","doi":"10.15244/pjoes/171574","DOIUrl":"https://doi.org/10.15244/pjoes/171574","url":null,"abstract":"Municipalities seem to be indispensable in reaching sustainability at the local level while waste management (WM) plays a crucial role. The WM system is influenced by various variables with the questionable possibility of municipal interventions. The holistic nature of the phenomena resulted in the usage of the redundancy analysis investigating 9 independent determinants and 8 dependent factors of the municipal WM simultaneously. The research was conducted on a sample of 125 municipalities from two Slovak regions, revealing 6 clusters of similarly behaving vectors. Well-defined linkages were found among spatial factors such as altitude, administrative affiliation, and presence of the marginalized groups of inhabitants or in the case of socioeconomic factors such as the number of inhabitants, fees for waste removal, and the creation of illegal landfills. Moreover, the second cluster is negatively correlated with the share of removed illegal landfills and in-house services in the WM and is almost independent of local voluntary activities in the WM and own waste recycling. Various magnitudes of the variables were observed while the number of inhabitants belong to the strongest. Thus, the research has proven that municipalities have the keys to the tools that can influence the analysed ties and support municipal sustainability.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"10 26","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139240104","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}
Recombinant Saccharomyces cerevisiae expressing metallothionein was used for biosorption of lead (Pb). The Plackett-Burman design (PBD) and Box-Behnken design (BBD) were applied to optimize adsorption conditions of Pb by genetically engineered S. cerevisiae . The PBD and its subsequent statistical analysis indicate that the initial concentration of Pb, pH and concentration of biosorbent were the three critical factors influencing Pb biosorption by genetically engineered S. cerevisiae . The Path of steepest ascent was then used to approximate the optimal levels of the main factors. Then, the response surface method was used to optimize the adsorption conditions further. Considering biosorption quantity of Pb as the response objective, a quadratic model was obtained by BBD for 3 factors. The optimal biosorption conditions were as follows: the initial concentration of Pb (81.12 mg/L), pH 5.05 and the concentration of biosorbent (0.15 g/L). Under optimal conditions, the maximum adsorption quantity of Pb is 129.60 mg/g. Model validation experiments showed good correlation between the predicted values and experimental values. The performance of adsorption of Pb by genetically engineered S. cerevisiae is clearly improved by response surface methodology optimization. Genetically engineered S. cerevisiae show higher adsorption capacity than other reported biosorbents and may therefore be an effective biosorbent for industrial use.
{"title":"Optimization of Pb Biosorption from Aqueous Solution Using Genetically Engineered Saccharomyces cerevisiae by Response Surface Methodology","authors":"Ruigang Zhang, Huilan Yi","doi":"10.15244/pjoes/172838","DOIUrl":"https://doi.org/10.15244/pjoes/172838","url":null,"abstract":"Recombinant Saccharomyces cerevisiae expressing metallothionein was used for biosorption of lead (Pb). The Plackett-Burman design (PBD) and Box-Behnken design (BBD) were applied to optimize adsorption conditions of Pb by genetically engineered S. cerevisiae . The PBD and its subsequent statistical analysis indicate that the initial concentration of Pb, pH and concentration of biosorbent were the three critical factors influencing Pb biosorption by genetically engineered S. cerevisiae . The Path of steepest ascent was then used to approximate the optimal levels of the main factors. Then, the response surface method was used to optimize the adsorption conditions further. Considering biosorption quantity of Pb as the response objective, a quadratic model was obtained by BBD for 3 factors. The optimal biosorption conditions were as follows: the initial concentration of Pb (81.12 mg/L), pH 5.05 and the concentration of biosorbent (0.15 g/L). Under optimal conditions, the maximum adsorption quantity of Pb is 129.60 mg/g. Model validation experiments showed good correlation between the predicted values and experimental values. The performance of adsorption of Pb by genetically engineered S. cerevisiae is clearly improved by response surface methodology optimization. Genetically engineered S. cerevisiae show higher adsorption capacity than other reported biosorbents and may therefore be an effective biosorbent for industrial use.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"186 ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139241563","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}
P. Malega, N. Daneshjo, P. Drábik, Monika Hudáková
The paper analyses the current state of recovery and finalisation of plastic waste in a company. It also considers the measures proposed to improve these activities. Valuable information was obtained by observing processes in the link man–machine–material. On this basis, the process of finding an efficient and rational solution to the given issue was facilitated. In recent years, various new spheres are trendy; also, the sphere of plastic waste management is among the most important. Plastics as a material have many positive properties and are therefore used in many industries. The main part of the paper deals with the plastic waste, legislation related to the recovery of plastic waste, as well as the recovery of plastic waste itself.
{"title":"Increasing the Efficiency of Recovery and Finalization of Plastic Waste in a Company","authors":"P. Malega, N. Daneshjo, P. Drábik, Monika Hudáková","doi":"10.15244/pjoes/173107","DOIUrl":"https://doi.org/10.15244/pjoes/173107","url":null,"abstract":"The paper analyses the current state of recovery and finalisation of plastic waste in a company. It also considers the measures proposed to improve these activities. Valuable information was obtained by observing processes in the link man–machine–material. On this basis, the process of finding an efficient and rational solution to the given issue was facilitated. In recent years, various new spheres are trendy; also, the sphere of plastic waste management is among the most important. Plastics as a material have many positive properties and are therefore used in many industries. The main part of the paper deals with the plastic waste, legislation related to the recovery of plastic waste, as well as the recovery of plastic waste itself.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"125 7","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139239586","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}
Bitter melon ( Momordica charantia L.) is an economically important medicinal and vegetable crop plant that is rarely grown in Turkey under natural conditions. This study aimed to develop an in vitro somatic embryo regeneration method using dissimilar concentrations of H 3 BO 3 and 2,4-D on leaf and stem explants of the Gazipasa bitter melon ecotype. Boron is an essential microelement for plants, and its deficiency or excess creates significant problems in plant development. Within the scope of the study, 0.5, 1.0, 1.5, and 2.0 mg l -1 concentrations of H 3 BO 3 and 1.0 and 2.0 mg l - 2,4-D were applied to the leaf and stem explants. The results showed 100.00% and 60.00% callus formation on leaf explants after two weeks and stem explants after 3 weeks using MS medium amended with 0.5 mg l -1 H 3 BO 3 and 2.0 mg l -1 2,4-D . Somatic embryo formation percentages were dependent on the type of explant. Their recovery to healthy plantlets was obtained on MS medium. The somatic embryos at the globular and heart stages comprised identifiable protoderm layer formation that was not observed if H 3 BO 3 was not added into the cultures and the embryos were fused with hyperhydricity. The study meets the objectives of the research.
苦瓜（Momordica charantia L.）是一种具有重要经济价值的药用和蔬菜作物，在土耳其的自然条件下很少种植。本研究旨在开发一种体外体细胞胚胎再生方法，使用不同浓度的 H 3 BO 3 和 2,4-D 对 Gazipasa 苦瓜生态型的叶片和茎外植体进行处理。硼是植物必需的微量元素，其缺乏或过量都会给植物生长带来严重问题。在研究范围内，叶片和茎外植体分别施用了 0.5、1.0、1.5 和 2.0 mg l -1 浓度的 H 3 BO 3 和 1.0 和 2.0 mg l - 2,4-D。结果表明，使用添加了 0.5 毫克升-1 H 3 BO 3 和 2.0 毫克升-1 2,4-D 的 MS 培养基，两周后叶片外植体和三周后茎干外植体的胼胝体形成率分别为 100.00% 和 60.00%。体细胞胚形成率取决于外植体的类型。体细胞胚的形成率取决于外植体的类型，它们在 MS 培养基上可恢复成健康的小植株。体细胞胚在球状期和心脏期有可识别的原胚层形成，如果不在培养基中添加 H 3 BO 3，胚在超水合状态下融合，则无法观察到原胚层形成。这项研究达到了研究目标。
{"title":"The effect of H3BO3 and 2,4-D on in vitro Callus and Somatic Embryo Formation of Bitter Melon (Momordica charantia L.)","authors":"Sevil Sağlam Yılmaz, K. M. Khawar","doi":"10.15244/pjoes/173443","DOIUrl":"https://doi.org/10.15244/pjoes/173443","url":null,"abstract":"Bitter melon ( Momordica charantia L.) is an economically important medicinal and vegetable crop plant that is rarely grown in Turkey under natural conditions. This study aimed to develop an in vitro somatic embryo regeneration method using dissimilar concentrations of H 3 BO 3 and 2,4-D on leaf and stem explants of the Gazipasa bitter melon ecotype. Boron is an essential microelement for plants, and its deficiency or excess creates significant problems in plant development. Within the scope of the study, 0.5, 1.0, 1.5, and 2.0 mg l -1 concentrations of H 3 BO 3 and 1.0 and 2.0 mg l - 2,4-D were applied to the leaf and stem explants. The results showed 100.00% and 60.00% callus formation on leaf explants after two weeks and stem explants after 3 weeks using MS medium amended with 0.5 mg l -1 H 3 BO 3 and 2.0 mg l -1 2,4-D . Somatic embryo formation percentages were dependent on the type of explant. Their recovery to healthy plantlets was obtained on MS medium. The somatic embryos at the globular and heart stages comprised identifiable protoderm layer formation that was not observed if H 3 BO 3 was not added into the cultures and the embryos were fused with hyperhydricity. The study meets the objectives of the research.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"115 4","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139238956","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}
Kissinger Kissinger, Ahmad Yamani, R. Pitri, Amar Vijay Nasrulloh
Peat ecosystems have very important ecosystem services and functions, and roles for human life, the flora and fauna. Management of Lepironia articulata Retz. become an alternative business carried out by forest farmers in peat ecosystems. This study aims to evaluate the management of L.articulata in supporting peat ecosystem conservation. The research conducted in Haur Gading sub-district, South Kalimantan, Indonesia. Data collection carried out through the interview on the stages of L.articulata management and socio-economic data on the community. Field survey were done by collecting ecological data from L.articulata habitat. Conservation support for peat ecosystems from L.articulata management analyzed using 7 variables and 17 indicators. Conservation support for the peat ecosystem from the management of L.articulata result is high (90.24%). Conservation support obtained from the indicator values of social benefits, economic benefits, technical aspects of L.articulata management stages, and several ecological benefits. The management of L.articulata by forest farmers able to reduce illegal logging and forest fires. Revegetation activities by forest farmers on enrichment planting is one option to increase the diversity of vegetation in peat ecosystems and also the form of conservation based on the utilization of the biodiversity of peat ecosystems. It contributes for improving the socio-economic community and the environment.
{"title":"Impacts of Forest Farmers Management on Lepironia articulata Retz.: Conservation Based on Utilization of Peat Ecosystem Biodiversity in South Kalimantan","authors":"Kissinger Kissinger, Ahmad Yamani, R. Pitri, Amar Vijay Nasrulloh","doi":"10.15244/pjoes/172040","DOIUrl":"https://doi.org/10.15244/pjoes/172040","url":null,"abstract":"Peat ecosystems have very important ecosystem services and functions, and roles for human life, the flora and fauna. Management of Lepironia articulata Retz. become an alternative business carried out by forest farmers in peat ecosystems. This study aims to evaluate the management of L.articulata in supporting peat ecosystem conservation. The research conducted in Haur Gading sub-district, South Kalimantan, Indonesia. Data collection carried out through the interview on the stages of L.articulata management and socio-economic data on the community. Field survey were done by collecting ecological data from L.articulata habitat. Conservation support for peat ecosystems from L.articulata management analyzed using 7 variables and 17 indicators. Conservation support for the peat ecosystem from the management of L.articulata result is high (90.24%). Conservation support obtained from the indicator values of social benefits, economic benefits, technical aspects of L.articulata management stages, and several ecological benefits. The management of L.articulata by forest farmers able to reduce illegal logging and forest fires. Revegetation activities by forest farmers on enrichment planting is one option to increase the diversity of vegetation in peat ecosystems and also the form of conservation based on the utilization of the biodiversity of peat ecosystems. It contributes for improving the socio-economic community and the environment.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"2009 28","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139239241","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}
Rongquan Fan, Xianping Zhou, Feng Tian, Yang Tang, Lihao Yin, Jun Xiang
The power transmission and transformation projects in the western region are facing the threat of frequent seismic activities, landslides and other geological disasters. Evaluation of the landslide susceptibility in power transmission projects has important theoretical and practical significance for the selection of power transmission channels and station sites, landslide monitoring and prevention in western mountainous areas. This paper takes the Erlang Mountain-Zheduo Mountain power transmission as the research area, based on the study of characteristics of landslide, evaluation factors are selected from aspects such as meteorology, hydrology, topography, rock and soil types; a weighted information model was established by using Pearson correlation coefficient method, CRITIC weight method, and independence weight coefficient method. Based on ArcGIS technology and weighted information model, the landslide susceptibility of Erlang Mountain-Zheduo Mountain Power Transmission Project is evaluated. The ROC curves and AUC value were used to verify the effect of weighted information model, and its AUC value is 0.866, indicating that HPIV model has a good prediction effect on landslide disasters.
{"title":"GIS-Based Landslide Susceptibility Zonation Mapping Using the Weighted Information Model in Erlang Mountain - Zheduo Mountain Power Transmission Project, China","authors":"Rongquan Fan, Xianping Zhou, Feng Tian, Yang Tang, Lihao Yin, Jun Xiang","doi":"10.15244/pjoes/172024","DOIUrl":"https://doi.org/10.15244/pjoes/172024","url":null,"abstract":"The power transmission and transformation projects in the western region are facing the threat of frequent seismic activities, landslides and other geological disasters. Evaluation of the landslide susceptibility in power transmission projects has important theoretical and practical significance for the selection of power transmission channels and station sites, landslide monitoring and prevention in western mountainous areas. This paper takes the Erlang Mountain-Zheduo Mountain power transmission as the research area, based on the study of characteristics of landslide, evaluation factors are selected from aspects such as meteorology, hydrology, topography, rock and soil types; a weighted information model was established by using Pearson correlation coefficient method, CRITIC weight method, and independence weight coefficient method. Based on ArcGIS technology and weighted information model, the landslide susceptibility of Erlang Mountain-Zheduo Mountain Power Transmission Project is evaluated. The ROC curves and AUC value were used to verify the effect of weighted information model, and its AUC value is 0.866, indicating that HPIV model has a good prediction effect on landslide disasters.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"140 ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139243367","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}
Coal-bearing metakaolin (CMK) is a highly active volcanic material. In this study, the compressive strength of CMK cement soil was tested, along with five CMK samples cured in different concentrations of Na 2 SO 4 solution. The compressive strength of the CMK cement soil first increased and then decreased with increasing Na 2 SO 4 concentrations. When the Na 2 SO 4 solution concentration was 18 g/L, the compressive strength of the CMK cement soil reached its maximum value. Additionally, X-ray diffraction (XRD) analysis of the chemical reactions between the CMK cement soil and Na 2 SO 4 solution and scanning electron microscopy (SEM) were used to analyze the phase composition and microstructure of the CMK cement soil, respectively. Thus, the pore distribution of the CMK cement soil could be calculated and classified from a 500× magnification SEM image using Image-ProPlus6.0 analysis software. This study explains the mechanism of curing CMK cement soil in a Na 2 SO 4 solution based on its phase analysis, microstructure, and pore distribution.
含煤偏高岭土（CMK）是一种高活性火山材料。本研究测试了 CMK 水泥土的抗压强度，以及在不同浓度的 Na 2 SO 4 溶液中固化的五个 CMK 样品。随着 Na 2 SO 4 浓度的增加，CMK 水泥土的抗压强度先增加后降低。当 Na 2 SO 4 溶液浓度为 18 g/L 时，CMK 水泥土的抗压强度达到最大值。此外，还利用 X 射线衍射（XRD）分析了 CMK 水泥土与 Na 2 SO 4 溶液之间的化学反应，并利用扫描电子显微镜（SEM）分别分析了 CMK 水泥土的相组成和微观结构。因此，可以利用 Image-ProPlus6.0 分析软件，通过放大 500 倍的扫描电镜图像计算 CMK 水泥土的孔隙分布并进行分类。本研究根据 CMK 水泥土的相分析、微观结构和孔隙分布，解释了其在 Na 2 SO 4 溶液中固化的机理。
{"title":"Strength Characteristics and Mechanism of CMK Cement Soil in a Na2SO4 Solution Environment","authors":"Jianping Liu, Jianjun Xu, Guoshuai Xie, Xiangqian Xie, Jixia Zhang, Xiaohong Bai","doi":"10.15244/pjoes/172753","DOIUrl":"https://doi.org/10.15244/pjoes/172753","url":null,"abstract":"Coal-bearing metakaolin (CMK) is a highly active volcanic material. In this study, the compressive strength of CMK cement soil was tested, along with five CMK samples cured in different concentrations of Na 2 SO 4 solution. The compressive strength of the CMK cement soil first increased and then decreased with increasing Na 2 SO 4 concentrations. When the Na 2 SO 4 solution concentration was 18 g/L, the compressive strength of the CMK cement soil reached its maximum value. Additionally, X-ray diffraction (XRD) analysis of the chemical reactions between the CMK cement soil and Na 2 SO 4 solution and scanning electron microscopy (SEM) were used to analyze the phase composition and microstructure of the CMK cement soil, respectively. Thus, the pore distribution of the CMK cement soil could be calculated and classified from a 500× magnification SEM image using Image-ProPlus6.0 analysis software. This study explains the mechanism of curing CMK cement soil in a Na 2 SO 4 solution based on its phase analysis, microstructure, and pore distribution.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"10 ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139243622","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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