{"title":"The increasing drought sensitivity of silver fir (Abies alba Mill.) is evident in the last two decades","authors":"M. Vejpustková, T. Čihák, P. Fiser","doi":"10.17221/172/2022-jfs","DOIUrl":"https://doi.org/10.17221/172/2022-jfs","url":null,"abstract":"","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"39 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86185323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Positive effect of fir-rowan intimate mixture on new forest floor and topsoil following afforestation","authors":"D. Kacálek, J. Bartoš, O. Špulák","doi":"10.17221/180/2022-jfs","DOIUrl":"https://doi.org/10.17221/180/2022-jfs","url":null,"abstract":"","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"90 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80454068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nutrition of silver fir (Abies alba Mill.) and its comparison with Norway spruce (Picea abies (L.) H. Karst) from the same forest sites in the Czech Republic","authors":"R. Novotný","doi":"10.17221/162/2022-jfs","DOIUrl":"https://doi.org/10.17221/162/2022-jfs","url":null,"abstract":"","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"51 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74337113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of silver fir provenances at 51 years of age in provenance trials in the Předhoří Hrubý Jeseník and Nízký Jeseník Mts. regions, Czech Republic","authors":"Ma Fulin, Jaromír Dostál, Jiří Čáp, Petr Novotný","doi":"10.17221/181/2022-jfs","DOIUrl":"https://doi.org/10.17221/181/2022-jfs","url":null,"abstract":"","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88887102","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}
Bui Manh Hung, Nguyen Thi Bich Phuong, Nguyen Van Quy, N. Van Hop, Le Van Cuong, Yusif Habib
: Forest structure is a key component of its management and assessment in every forest ecosystem. In the study, 23 plots were established to obtain data on the acacia forest community based on tree size. Results from the study indicated that the acacia community could be broadly divided into two groups based on tree-size variables. The diameter and height frequency distributions of Group 1 were right-skewed, while those of Group 2 were more complicated. In both groups, there were positive correlations between tree-size variables, nonetheless the relationship between diameter at breast height and total height was best described using the cubic equation. Further, the Weibull and Sinh-Arcsinh (SHASH) best simulated the diameter and height frequency distribution. High-quality trees were found in a large diameter (> 30 cm) and height groups (> 22 m). In contrast, low-quality plants often concentrated on the smallest sizes. Therefore, trees with a diameter of 2–10 cm and a height lower than 8 m should receive attention to tend. Carbon stock in the two groups was 61.48 Mg·ha –1 and 64.21 Mg·ha –1 , respectively. Tending solutions and measurements should be carried out regularly to promptly propose silvicultural measures and improve forest quality in future.
{"title":"Acacia canopy structure and carbon stock in Ba Vi, Vietnam","authors":"Bui Manh Hung, Nguyen Thi Bich Phuong, Nguyen Van Quy, N. Van Hop, Le Van Cuong, Yusif Habib","doi":"10.17221/46/2022-jfs","DOIUrl":"https://doi.org/10.17221/46/2022-jfs","url":null,"abstract":": Forest structure is a key component of its management and assessment in every forest ecosystem. In the study, 23 plots were established to obtain data on the acacia forest community based on tree size. Results from the study indicated that the acacia community could be broadly divided into two groups based on tree-size variables. The diameter and height frequency distributions of Group 1 were right-skewed, while those of Group 2 were more complicated. In both groups, there were positive correlations between tree-size variables, nonetheless the relationship between diameter at breast height and total height was best described using the cubic equation. Further, the Weibull and Sinh-Arcsinh (SHASH) best simulated the diameter and height frequency distribution. High-quality trees were found in a large diameter (> 30 cm) and height groups (> 22 m). In contrast, low-quality plants often concentrated on the smallest sizes. Therefore, trees with a diameter of 2–10 cm and a height lower than 8 m should receive attention to tend. Carbon stock in the two groups was 61.48 Mg·ha –1 and 64.21 Mg·ha –1 , respectively. Tending solutions and measurements should be carried out regularly to promptly propose silvicultural measures and improve forest quality in future.","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"23 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81742525","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}
: Forest cover plays an important role in terms of biodiversity and the environment. The Beni Salah national forest in its part which is located in the Guelma province in the extreme northeast of Algeria is an illustrative example where forest fires represent the chronic phenomenon which weighs heavily on this forest. The present study comes after a forest fire that occurred in 2021, when 3 000 ha of this forest were ravaged by forest fires according to the conservation of forests of Guelma. The main objective of this research is to map the severity of burns and estimate the severely burned area using Sentinel-2 satellite images based on remote sensing indices such as Normalized Difference Vegetation Index ( NDVI ), Differenced Normalized Difference Vegetation Index ( dNDVI ), Normalized Burn Ratio ( NBR ), Differenced Normalized Burn Ratio ( dNBR ), Green Normalized Difference Vegetation Index ( GNDVI ), Differenced Green Normalized Difference Vegetation Index ( dGNDVI ), Burn Area Index ( BAI ) and Relativized Burn Ratio ( RBR ). The result obtained revealed that 28.23% of the study area represents a seriously burned area. The established burn severity map is a real decision-making tool, but it still has certain limitations.
{"title":"Forest fire area detection using Sentinel-2 data: Case of the Beni Salah national forest ‒ Algeria","authors":"Rabah Zennir, Boubaker Khallef","doi":"10.17221/50/2022-jfs","DOIUrl":"https://doi.org/10.17221/50/2022-jfs","url":null,"abstract":": Forest cover plays an important role in terms of biodiversity and the environment. The Beni Salah national forest in its part which is located in the Guelma province in the extreme northeast of Algeria is an illustrative example where forest fires represent the chronic phenomenon which weighs heavily on this forest. The present study comes after a forest fire that occurred in 2021, when 3 000 ha of this forest were ravaged by forest fires according to the conservation of forests of Guelma. The main objective of this research is to map the severity of burns and estimate the severely burned area using Sentinel-2 satellite images based on remote sensing indices such as Normalized Difference Vegetation Index ( NDVI ), Differenced Normalized Difference Vegetation Index ( dNDVI ), Normalized Burn Ratio ( NBR ), Differenced Normalized Burn Ratio ( dNBR ), Green Normalized Difference Vegetation Index ( GNDVI ), Differenced Green Normalized Difference Vegetation Index ( dGNDVI ), Burn Area Index ( BAI ) and Relativized Burn Ratio ( RBR ). The result obtained revealed that 28.23% of the study area represents a seriously burned area. The established burn severity map is a real decision-making tool, but it still has certain limitations.","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"17 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85873640","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}
A. Ichen, S. Hanane, M. Bouaamama, M. Alaoui, N. Magri, A. Benhoussa
{"title":"Selection of trees for rubbing by the wild boar (Sus scrofa) in the Sidi Boughaba forested Moroccan Ramsar site: Assessment, implications, and perspectives","authors":"A. Ichen, S. Hanane, M. Bouaamama, M. Alaoui, N. Magri, A. Benhoussa","doi":"10.17221/139/2022-jfs","DOIUrl":"https://doi.org/10.17221/139/2022-jfs","url":null,"abstract":"","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"5 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90242723","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}
J. Černý, Peter Haninec, K. Novosadová, Z. Patočka, Pavel Haninec, P. Maděra
{"title":"Provenance affects the growth and mortality of teak (Tectona grandis L.f.) plantations cultivated in central Nicaragua","authors":"J. Černý, Peter Haninec, K. Novosadová, Z. Patočka, Pavel Haninec, P. Maděra","doi":"10.17221/115/2022-jfs","DOIUrl":"https://doi.org/10.17221/115/2022-jfs","url":null,"abstract":"","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"37 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85666794","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}
J. Vopravil, P. Formánek, D. Heřmanovská, T. Khel, Karel Jacko
: Many studies showed that afforestation increases carbon storage and it can have effects on physical, chemical and biological properties of soil. Afforestation can affect local and regional climate and these effects differ between tropical, temperate and boreal areas. Forests are also efficient in protecting soils against erosion and their flood mitigation functions or other benefits are described in different publications. In this study, the pattern of air temperatures (20 cm, 40 cm and 60 cm above the surface) was studied 10 years after the afforestation of agricultural land (warm, mild dry region of the Czech Republic) with a mixture of broadleaved tree species ( Quercus robur L., Quercus rubra L. and Acer platanoides L.) or monospecific Pinus sylvestris L. stand. The aim of our study was to find out the pattern of air temperatures (20 cm, 40 cm and 60 cm above the surface) on two plots (one of the plots ‒ old beech trees, the other plot ‒ clearing) in a beech ( Fagus sylvatica L.) forest in a mildly warm, mildly wet region of the Czech Republic. The afforestation of agriculturally used land led to air temperature cooling and to a reduction of the amplitude of maximum and minimum temperatures. The average air temperature (from April 2021 to the beginning of November 2021) decreased by 0.7–1.1 °C on the afforested plots compared with the agriculturally used plot. In the beech forest, the average temperature decreased on the plot with clearing compared with the old beech trees (from the middle of September 2021 to the middle of November 2021). Our results confirm the benefits of afforestation to climate change mitigation; buffering of extreme temperatures is important for the human thermal comfort.
{"title":"The impact of agricultural land afforestation on air temperatures near the surface","authors":"J. Vopravil, P. Formánek, D. Heřmanovská, T. Khel, Karel Jacko","doi":"10.17221/135/2022-jfs","DOIUrl":"https://doi.org/10.17221/135/2022-jfs","url":null,"abstract":": Many studies showed that afforestation increases carbon storage and it can have effects on physical, chemical and biological properties of soil. Afforestation can affect local and regional climate and these effects differ between tropical, temperate and boreal areas. Forests are also efficient in protecting soils against erosion and their flood mitigation functions or other benefits are described in different publications. In this study, the pattern of air temperatures (20 cm, 40 cm and 60 cm above the surface) was studied 10 years after the afforestation of agricultural land (warm, mild dry region of the Czech Republic) with a mixture of broadleaved tree species ( Quercus robur L., Quercus rubra L. and Acer platanoides L.) or monospecific Pinus sylvestris L. stand. The aim of our study was to find out the pattern of air temperatures (20 cm, 40 cm and 60 cm above the surface) on two plots (one of the plots ‒ old beech trees, the other plot ‒ clearing) in a beech ( Fagus sylvatica L.) forest in a mildly warm, mildly wet region of the Czech Republic. The afforestation of agriculturally used land led to air temperature cooling and to a reduction of the amplitude of maximum and minimum temperatures. The average air temperature (from April 2021 to the beginning of November 2021) decreased by 0.7–1.1 °C on the afforested plots compared with the agriculturally used plot. In the beech forest, the average temperature decreased on the plot with clearing compared with the old beech trees (from the middle of September 2021 to the middle of November 2021). Our results confirm the benefits of afforestation to climate change mitigation; buffering of extreme temperatures is important for the human thermal comfort.","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"27 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75253000","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}
V. Tkach, M. Rumiantsev, V. Luk'yanets, Oleksii Kobets, Iryna Obolonyk, Oksana Tarnopilska, S. Musienko, V. Bondarenko
The aim of the study was to assess the current state of silver birch (Betula pendula Roth.) stands in Ukrainian Polissya, as well as to identify optimal composition resulting in productive and resilient mixed birch forests. It was found that in forests managed by the State Forest Resources Agency of Ukraine, birch stands grow on an area of 352 800 ha, covering 5.6% of the total area of forests in Ukraine. Within the study region of Ukrainian Polissya, birch stands cover 294 900 ha making 12.3% of the total forest area. Naturally originated birch stands were found to dominate in the study region, with 65.4% of vegetative stands and 25.2% of those grown from seeds. However, planted stands significantly prevail in terms of growing stock as compared to natural ones. In Ukrainian Polissya, silver birch trees grow as a part of mixed pine and birch forests on 632 400 ha. Our study found that mixed pine and birch stands with 80–90% of Scots pine and 20–10% of silver birch in the composition are the most productive.
{"title":"State and productivity of mixed stands with silver birch and Scots pine in Ukrainian Polissya","authors":"V. Tkach, M. Rumiantsev, V. Luk'yanets, Oleksii Kobets, Iryna Obolonyk, Oksana Tarnopilska, S. Musienko, V. Bondarenko","doi":"10.17221/144/2022-jfs","DOIUrl":"https://doi.org/10.17221/144/2022-jfs","url":null,"abstract":"The aim of the study was to assess the current state of silver birch (Betula pendula Roth.) stands in Ukrainian Polissya, as well as to identify optimal composition resulting in productive and resilient mixed birch forests. It was found that in forests managed by the State Forest Resources Agency of Ukraine, birch stands grow on an area of 352 800 ha, covering 5.6% of the total area of forests in Ukraine. Within the study region of Ukrainian Polissya, birch stands cover 294 900 ha making 12.3% of the total forest area. Naturally originated birch stands were found to dominate in the study region, with 65.4% of vegetative stands and 25.2% of those grown from seeds. However, planted stands significantly prevail in terms of growing stock as compared to natural ones. In Ukrainian Polissya, silver birch trees grow as a part of mixed pine and birch forests on 632 400 ha. Our study found that mixed pine and birch stands with 80–90% of Scots pine and 20–10% of silver birch in the composition are the most productive.","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"53 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78839615","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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