Pub Date : 2023-10-19DOI: 10.1080/24749508.2023.2265125
Yizhou Peng, Grigorieva Iya Yu
The parent rock inheritance of the purple soils in the Sichuan Basin is evident, and this is due to factors that are directly related to the parent rocks’ characteristics. Fundamentally, the nature of purple soils is determined by the lithology, chemical composition, weathering, and soil formation of parent rocks, whereas the provenance, and tectonic context of rocks during their diagenesis have a significant influence on their rock attributes. In this study, rocks from four sedimentary layers of the Cretaceous and Jurassic eras – k1c, J3p, J3s, J2s in the Sichuan Basin – as well as the overlying soils were examined, and experimental determinations of the samples’ physical characteristics and chemical elemental composition were made to confirm the parent rock inheritance of purple soils. The essential weathering indices ICV, CIAcorr, WIP, and Na/K were used to study the weathering characteristics of the rocks and soils, and the A-CN-K ternary diagram was used to assess the weathering trends of the rocks. The findings demonstrate that purple soil exhibits significant parent rock inheritance due to its rapid physical soil formation process and weak chemical weathering process. That the rocks of the four sedimentary layers in the study area have all reached a moderate degree of weathering, their original source components are quartzose sedimentary which may have been derived from feldspar source rocks. The tectonic background of the source rocks may be mainly continental arc and active continental margin environment, there may be an oceanic arc tectonic environment.
{"title":"Purple soil inheritance and source of parent rock material and tectonic background in the Sichuan Basin, China","authors":"Yizhou Peng, Grigorieva Iya Yu","doi":"10.1080/24749508.2023.2265125","DOIUrl":"https://doi.org/10.1080/24749508.2023.2265125","url":null,"abstract":"The parent rock inheritance of the purple soils in the Sichuan Basin is evident, and this is due to factors that are directly related to the parent rocks’ characteristics. Fundamentally, the nature of purple soils is determined by the lithology, chemical composition, weathering, and soil formation of parent rocks, whereas the provenance, and tectonic context of rocks during their diagenesis have a significant influence on their rock attributes. In this study, rocks from four sedimentary layers of the Cretaceous and Jurassic eras – k1c, J3p, J3s, J2s in the Sichuan Basin – as well as the overlying soils were examined, and experimental determinations of the samples’ physical characteristics and chemical elemental composition were made to confirm the parent rock inheritance of purple soils. The essential weathering indices ICV, CIAcorr, WIP, and Na/K were used to study the weathering characteristics of the rocks and soils, and the A-CN-K ternary diagram was used to assess the weathering trends of the rocks. The findings demonstrate that purple soil exhibits significant parent rock inheritance due to its rapid physical soil formation process and weak chemical weathering process. That the rocks of the four sedimentary layers in the study area have all reached a moderate degree of weathering, their original source components are quartzose sedimentary which may have been derived from feldspar source rocks. The tectonic background of the source rocks may be mainly continental arc and active continental margin environment, there may be an oceanic arc tectonic environment.","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730197","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}
Pub Date : 2023-10-06DOI: 10.1080/24749508.2023.2265123
Muhammad Ibrahim, Niaz Ahmad
The rapid population growth of cities has led to the loss of dedicated green spaces gradually and remarkably by constructing hard surfaces on them. These dedicated green spaces play a vital role in urban livability. Therefore, this study analysed the current provision of dedicated green spaces and identified the challenges faced in maintaining and improving these spaces in Peshawar, a metropolitan city in Pakistan. The findings of the study indicate a significant difference between the areas occupied by built-up and dedicated green spaces in the city. According to the analysis, the ratio of built-up area to dedicated green space in Peshawar city is 54% and 2%, respectively, with the remaining 44% of the land being used for other purposes, such as agriculture and barren land. The current per capita availability of green space in the city is 1.5 m2. This quantity is 3.5 m2 less than the National and 7.5 m2 lesser than the International standard set by WHO. It was suggested to policymakers, planners, and development authorities to prioritize the provision and preservation of dedicated green spaces in cities. This would not only improve the quality of life for the current population but also benefit future generations.
{"title":"Quantitative evaluation and challenges confronting dedicated green spaces in cities: a case study of Peshawar, Pakistan","authors":"Muhammad Ibrahim, Niaz Ahmad","doi":"10.1080/24749508.2023.2265123","DOIUrl":"https://doi.org/10.1080/24749508.2023.2265123","url":null,"abstract":"The rapid population growth of cities has led to the loss of dedicated green spaces gradually and remarkably by constructing hard surfaces on them. These dedicated green spaces play a vital role in urban livability. Therefore, this study analysed the current provision of dedicated green spaces and identified the challenges faced in maintaining and improving these spaces in Peshawar, a metropolitan city in Pakistan. The findings of the study indicate a significant difference between the areas occupied by built-up and dedicated green spaces in the city. According to the analysis, the ratio of built-up area to dedicated green space in Peshawar city is 54% and 2%, respectively, with the remaining 44% of the land being used for other purposes, such as agriculture and barren land. The current per capita availability of green space in the city is 1.5 m2. This quantity is 3.5 m2 less than the National and 7.5 m2 lesser than the International standard set by WHO. It was suggested to policymakers, planners, and development authorities to prioritize the provision and preservation of dedicated green spaces in cities. This would not only improve the quality of life for the current population but also benefit future generations.","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135350292","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}
Pub Date : 2023-09-26DOI: 10.1080/24749508.2023.2256542
Wudu Abiye, Istvan Waltner, Hailu Kindie
Soil erosion is a global problem that threatens sustainability and food security by washing away fertile soil, nutrients, and organic matter. Land use changes, land degradation, and soil erosion are increasing, resulting in annual losses of fertile soil and declining crop yields. The objective of this study was to examine how changes in land use and land cover affected soil erosion dynamics and determine which areas should receive priority for soil and water conservation interventions. The study employs remote sensing and Geographic information system techniques to assess the impact of land use and land cover change on soil erosion between 2004 and 2020. The RUSLE model estimates soil erosion rates. Mean annual rainfall, soil data, 2 m DEM, and satellite images are used to input data into the model to determine soil erosion. The study identifies six land use and cover types and shows that significant changes have occurred in bare land and shrubland, decreasing by 25.48% and 6.17%, respectively, from 2004–2020. On the other hand, forest land increased by 20.19%, and cultivated land increased by 3.52%. Additionally, the study evaluated the response of soil erosion to land use and land cover changes, showed that bare land, cultivated land, and grazing land have the highest annual loss. In contrast, forest land, shrubland, and water bodies have the lowest. The analysis of soil erosion risk indicated a decline in the mean annual soil loss rate at the watershed scale, with rates decreasing from 12.8t ha−1 yr-1 in 2004 to 3.21t ha-1 yr-1 in 2020. The watershed is classified into five severity classes, and the study area was divided into five priority categories based on their average annual soil losses. The study emphasized that prioritizing interventions for watershed types with high erosion risks is crucial for reducing on-site soil loss and off-site effects together with conserving water resources. The findings support the importance of long-term watershed management in reducing soil erosion. To effectively reduce soil erosion and improve environmental quality, it is recommended to encourage afforestation and reforestation, develop sustainable land use policies, strengthen soil conservation measures, and improve monitoring and evaluation of land use changes.
{"title":"Spatiotemporal dynamics of soil erosion response to land use land cover dynamics and climate variability in Maybar watershed, Awash basin, Ethiopia","authors":"Wudu Abiye, Istvan Waltner, Hailu Kindie","doi":"10.1080/24749508.2023.2256542","DOIUrl":"https://doi.org/10.1080/24749508.2023.2256542","url":null,"abstract":"Soil erosion is a global problem that threatens sustainability and food security by washing away fertile soil, nutrients, and organic matter. Land use changes, land degradation, and soil erosion are increasing, resulting in annual losses of fertile soil and declining crop yields. The objective of this study was to examine how changes in land use and land cover affected soil erosion dynamics and determine which areas should receive priority for soil and water conservation interventions. The study employs remote sensing and Geographic information system techniques to assess the impact of land use and land cover change on soil erosion between 2004 and 2020. The RUSLE model estimates soil erosion rates. Mean annual rainfall, soil data, 2 m DEM, and satellite images are used to input data into the model to determine soil erosion. The study identifies six land use and cover types and shows that significant changes have occurred in bare land and shrubland, decreasing by 25.48% and 6.17%, respectively, from 2004–2020. On the other hand, forest land increased by 20.19%, and cultivated land increased by 3.52%. Additionally, the study evaluated the response of soil erosion to land use and land cover changes, showed that bare land, cultivated land, and grazing land have the highest annual loss. In contrast, forest land, shrubland, and water bodies have the lowest. The analysis of soil erosion risk indicated a decline in the mean annual soil loss rate at the watershed scale, with rates decreasing from 12.8t ha−1 yr-1 in 2004 to 3.21t ha-1 yr-1 in 2020. The watershed is classified into five severity classes, and the study area was divided into five priority categories based on their average annual soil losses. The study emphasized that prioritizing interventions for watershed types with high erosion risks is crucial for reducing on-site soil loss and off-site effects together with conserving water resources. The findings support the importance of long-term watershed management in reducing soil erosion. To effectively reduce soil erosion and improve environmental quality, it is recommended to encourage afforestation and reforestation, develop sustainable land use policies, strengthen soil conservation measures, and improve monitoring and evaluation of land use changes.","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135719359","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}
Pub Date : 2023-09-19DOI: 10.1080/24749508.2023.2256553
Raymond Webrah Kazapoe
This paper reviews the geological characteristics and settings of orogenic gold deposits in the Boule Mossi Domain of West Africa. Understanding the geological characteristics of these deposits is crucial for effective gold exploration in the region. Some of the gold deposits of the Birimian of West Africa were formed during the Eoeburnean magmatic accretion cycle and, more generally, during the tectonic accretion and reworking phases of the Eburnean orogenic cycle. The deposits are controlled by first-order structures, but in most cases are located within second order structural discontinuities. The auriferous fluid found within these deposits is CO2-rich with intermediate salinities. The CO2-rich fluids may have originated from the thermal breakdown of organic materials in deeply buried biogenetic carbonaceous rocks. The nature of the hydrothermal sulphide complexes suggests that the most probable source of the gold is the metamorphic devolatilization of the underlying metasedimentary rocks. The strong association between mineralization and structural discontinuities, as well as the distinguishable mineralogical and isotopic mineralization signatures in the Birimian, lends itself to a variety of techniques in gold exploration such as machine learning and stable isotope geochemistry. This review has important implications for the exploration of orogenic gold deposits in western Africa.
{"title":"A review of the characteristics and geological settings of orogenic gold deposits of the Boule Mossi Domain: implication for gold exploration","authors":"Raymond Webrah Kazapoe","doi":"10.1080/24749508.2023.2256553","DOIUrl":"https://doi.org/10.1080/24749508.2023.2256553","url":null,"abstract":"This paper reviews the geological characteristics and settings of orogenic gold deposits in the Boule Mossi Domain of West Africa. Understanding the geological characteristics of these deposits is crucial for effective gold exploration in the region. Some of the gold deposits of the Birimian of West Africa were formed during the Eoeburnean magmatic accretion cycle and, more generally, during the tectonic accretion and reworking phases of the Eburnean orogenic cycle. The deposits are controlled by first-order structures, but in most cases are located within second order structural discontinuities. The auriferous fluid found within these deposits is CO2-rich with intermediate salinities. The CO2-rich fluids may have originated from the thermal breakdown of organic materials in deeply buried biogenetic carbonaceous rocks. The nature of the hydrothermal sulphide complexes suggests that the most probable source of the gold is the metamorphic devolatilization of the underlying metasedimentary rocks. The strong association between mineralization and structural discontinuities, as well as the distinguishable mineralogical and isotopic mineralization signatures in the Birimian, lends itself to a variety of techniques in gold exploration such as machine learning and stable isotope geochemistry. This review has important implications for the exploration of orogenic gold deposits in western Africa.","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135060498","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}
Pub Date : 2023-09-12DOI: 10.1080/24749508.2023.2256546
Md. Shawkat Islam Sohel, H M Nurul Islam, Md. Amanat Ullah, Kazi Md. Noor Newaz, Malik Fida A Khan, Gopal Chandra Sarker, Md. Sadequr Rahman Bhuiyan
There is a growing interest in understanding and establishing forest nurseries in swamp ecosystem areas of Bangladesh. This study aims to evaluate the socio-economic and ecological contribution of swamp small-scale tree nurseries. The result revealed that government and non-government organizations established swamp nurseries in Bangladesh. Swamp nursery producer generates an annual average net profit of USD 4745. Small-scale swamp nursery owners benefited in multiple forms: subsistence, house construction, savings purposes, and, most importantly, expansion of their businesses. However, the ecological aspect of seedling production was not satisfactory because of the lack of facilities such as skilled labor supply, access to high-quality germplasm, technical skills, nursery facilities, etc. In the nurseries observed, only two dominant swamp tree species, locally known as Hijol (Barringtonia acutangular) and Koroch (Pongamia pinnata) seedlings were found. In most cases, those seedlings were morphologically unhealthy, and the root structure was deformed, which was identified as a major problem of reforestation programs in wetland areas. Therefore, to make the reforestation program successful and create livelihoods for the rural poor in the wetland areas, there is an urgent need to develop quality seedlings-based swamp nurseries, which are only possible through proper nursery management techniques.
{"title":"Ecological and economic significance of swamp vegetation nursery for successful reforestation program: an insight from Bangladesh","authors":"Md. Shawkat Islam Sohel, H M Nurul Islam, Md. Amanat Ullah, Kazi Md. Noor Newaz, Malik Fida A Khan, Gopal Chandra Sarker, Md. Sadequr Rahman Bhuiyan","doi":"10.1080/24749508.2023.2256546","DOIUrl":"https://doi.org/10.1080/24749508.2023.2256546","url":null,"abstract":"There is a growing interest in understanding and establishing forest nurseries in swamp ecosystem areas of Bangladesh. This study aims to evaluate the socio-economic and ecological contribution of swamp small-scale tree nurseries. The result revealed that government and non-government organizations established swamp nurseries in Bangladesh. Swamp nursery producer generates an annual average net profit of USD 4745. Small-scale swamp nursery owners benefited in multiple forms: subsistence, house construction, savings purposes, and, most importantly, expansion of their businesses. However, the ecological aspect of seedling production was not satisfactory because of the lack of facilities such as skilled labor supply, access to high-quality germplasm, technical skills, nursery facilities, etc. In the nurseries observed, only two dominant swamp tree species, locally known as Hijol (Barringtonia acutangular) and Koroch (Pongamia pinnata) seedlings were found. In most cases, those seedlings were morphologically unhealthy, and the root structure was deformed, which was identified as a major problem of reforestation programs in wetland areas. Therefore, to make the reforestation program successful and create livelihoods for the rural poor in the wetland areas, there is an urgent need to develop quality seedlings-based swamp nurseries, which are only possible through proper nursery management techniques.","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135827316","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}
Solid waste management (SWM) in Ethiopian cities is a significant public health, economic, and environmental issue, with access to suitable disposal locations becoming challenging due to social, environmental, economic, and technical factors. This study aims to propose suitable landfill sites for Debrebirhan Town's solid waste disposal using an integrated survey mechanism, including geographical information system, remote sensing, and analytical hierarchy process (AHP), to address limiting factors. Economic, social, and environmental data were used for the suitable site selection. Satellite images were processed by ERDAS IMAGINE Software, and ArcGIS software was used to identify and map the potential landfill sites. The suitability map was produced by the combined effect of the weights of the criteria and the suitability of the factor maps. The result is summarized with four suitability levels labeled as highly suitable (23%), moderately suitable (51.75%), less suitable (0.25%), and unsuitable (25%). The most suitable landfill sites were found in three locations in the west, north-west, and north directions of Debrebirhan Town that fulfill the economic feasibility, environmental safety, and social acceptability requirements for solid waste disposal. The findings are relevant for governmental decision-making and policy framework implementation.
{"title":"Assessment of landfill site suitability using GIS, remote sensing, and the multi-criteria decision-making (AHP) approach, Ethiopia","authors":"Mulumebet Demeke Desta, Tamiru Tesseme, Tesfaye Tefera Yigezu, Asmare Belay Nigussie","doi":"10.1080/24749508.2023.2256549","DOIUrl":"https://doi.org/10.1080/24749508.2023.2256549","url":null,"abstract":"Solid waste management (SWM) in Ethiopian cities is a significant public health, economic, and environmental issue, with access to suitable disposal locations becoming challenging due to social, environmental, economic, and technical factors. This study aims to propose suitable landfill sites for Debrebirhan Town's solid waste disposal using an integrated survey mechanism, including geographical information system, remote sensing, and analytical hierarchy process (AHP), to address limiting factors. Economic, social, and environmental data were used for the suitable site selection. Satellite images were processed by ERDAS IMAGINE Software, and ArcGIS software was used to identify and map the potential landfill sites. The suitability map was produced by the combined effect of the weights of the criteria and the suitability of the factor maps. The result is summarized with four suitability levels labeled as highly suitable (23%), moderately suitable (51.75%), less suitable (0.25%), and unsuitable (25%). The most suitable landfill sites were found in three locations in the west, north-west, and north directions of Debrebirhan Town that fulfill the economic feasibility, environmental safety, and social acceptability requirements for solid waste disposal. The findings are relevant for governmental decision-making and policy framework implementation.","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135980889","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}
Pub Date : 2023-09-11DOI: 10.1080/24749508.2023.2256550
Muhammad Suliman, Muhammad Ali, Shah Faisal
{"title":"Lithological mapping of northern Kohat Plateau’s limestone outcrops using integrated remote sensing and reflectance spectroscopy techniques","authors":"Muhammad Suliman, Muhammad Ali, Shah Faisal","doi":"10.1080/24749508.2023.2256550","DOIUrl":"https://doi.org/10.1080/24749508.2023.2256550","url":null,"abstract":"","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135981347","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}
This study investigates drought trends, SPI-SPEI comparisons, and predictions in Rangpur, Bangladesh, from 1979 to 2020. We employed Modified Mann-Kendall for trend analysis, SPI and SPEI for drought assessment, and Pearson Correlation Coefficient and Simple Linear Regression for evaluating SPI and SPEI relationships. Additionally, we utilized ANN, SVM, and RF for prediction. The study revealed notable negative trends in seasonal and annual drought, with the highest z statistics observed for SPI 06 (-2.75), SPI 09 (-4.50), SPI 12 (5.60), SPI 24 (-8.40), SPEI 06 (-5.13), SPEI 09 (-6.82), SPEI 12 (-8.04), and SPEI 24 (-11.20). Strong correlations were identified across all SPI and SPEI indices, with coefficients peaking at 97%, 98%, 98%, and 97% for 06, 09, 12, and 24-month periods, respectively. The comparative assessment favored SPEI over SPI, highlighting its superiority and accuracy. The ANN prediction model showed significant results for short-term and seasonal drought forecasts, projecting SPEI 03 and SPEI 06 increases of 0.02 and 0.24, respectively. However, long-term drought estimation exhibited insignificant performance across all predictive models. This emphasizes the need for developing essential predictive tools for future drought variability.
{"title":"Estimation of drought trends and comparison between SPI and SPEI with prediction using machine learning models in Rangpur, Bangladesh","authors":"Mst. Labony Akter, Md. Naimur Rahman, Syed Anowerul Azim, Md. Rakib Hasan Rony, Md. Salman Sohel, Hazem Ghassan Abdo","doi":"10.1080/24749508.2023.2254003","DOIUrl":"https://doi.org/10.1080/24749508.2023.2254003","url":null,"abstract":"This study investigates drought trends, SPI-SPEI comparisons, and predictions in Rangpur, Bangladesh, from 1979 to 2020. We employed Modified Mann-Kendall for trend analysis, SPI and SPEI for drought assessment, and Pearson Correlation Coefficient and Simple Linear Regression for evaluating SPI and SPEI relationships. Additionally, we utilized ANN, SVM, and RF for prediction. The study revealed notable negative trends in seasonal and annual drought, with the highest z statistics observed for SPI 06 (-2.75), SPI 09 (-4.50), SPI 12 (5.60), SPI 24 (-8.40), SPEI 06 (-5.13), SPEI 09 (-6.82), SPEI 12 (-8.04), and SPEI 24 (-11.20). Strong correlations were identified across all SPI and SPEI indices, with coefficients peaking at 97%, 98%, 98%, and 97% for 06, 09, 12, and 24-month periods, respectively. The comparative assessment favored SPEI over SPI, highlighting its superiority and accuracy. The ANN prediction model showed significant results for short-term and seasonal drought forecasts, projecting SPEI 03 and SPEI 06 increases of 0.02 and 0.24, respectively. However, long-term drought estimation exhibited insignificant performance across all predictive models. This emphasizes the need for developing essential predictive tools for future drought variability.","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136192340","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}
Pub Date : 2023-09-04DOI: 10.1080/24749508.2023.2254007
R. Yadollahvandmiandoab, A. Farashi, Amir Ebrahimi
{"title":"Species distribution modeling of two poorly known populations of Spalerosophis diadema (Reptilia: Colubridae): are the Zagros Mountains a true barrier for fragmentation in this species?","authors":"R. Yadollahvandmiandoab, A. Farashi, Amir Ebrahimi","doi":"10.1080/24749508.2023.2254007","DOIUrl":"https://doi.org/10.1080/24749508.2023.2254007","url":null,"abstract":"","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48834966","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}
Pub Date : 2023-09-01DOI: 10.1080/24749508.2023.2253991
Moniroth Om, R. Arjwech, P. Nulay, Sutatcha Hongsresawat, Romyupa Srikraiwest, P. Pondthai
{"title":"Characteristics of collapsible red soil in Northeast Thailand","authors":"Moniroth Om, R. Arjwech, P. Nulay, Sutatcha Hongsresawat, Romyupa Srikraiwest, P. Pondthai","doi":"10.1080/24749508.2023.2253991","DOIUrl":"https://doi.org/10.1080/24749508.2023.2253991","url":null,"abstract":"","PeriodicalId":12598,"journal":{"name":"Geology, Ecology, and Landscapes","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47575866","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}
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