Folia Oecologica最新文献_第7页

Constructing single-entry stem volume models for four economically important tree species of Greece 构建希腊四种重要经济树种的单入口树干体积模型

IF 1.3

Folia Oecologica Pub Date : 2021-07-01 DOI: 10.2478/foecol-2021-0014

Panagiotis P. Koulelis, K. Ioannidis

{"title":"Constructing single-entry stem volume models for four economically important tree species of Greece","authors":"Panagiotis P. Koulelis, K. Ioannidis","doi":"10.2478/foecol-2021-0014","DOIUrl":"https://doi.org/10.2478/foecol-2021-0014","url":null,"abstract":"Abstract Three different nonlinear regression models were tested for their ability to predict stem volume for economically important native tree species in Greece. Τhe models were evaluated using adjusted R square (Adj Rsqr) root mean square error (RMSE) and Akaike information criterion (AICc), where necessary. In general, the quadratic polynomial and cubic polynomial models and the two-parameter power models fit the data well. Although the two-parameter power function fit best for fir, oak, and beech trees, the cubic polynomial model produced the best fit statistics for black pine. Making forest inventory estimates often involves predicting tree volumes from only the diameter at breast height (DBH) and merchantable height. This study covers important gaps in fast and cost-effective methods for calculating the volume of tree species at national level. However, the increasing need for reliable estimates of inventory components and volume changes requires more accurate volume estimation techniques. Especially when those estimates concern the national inventory, those models must be validated using an entire range of age/diameter and site classes of each species before their extended use across the country to promote the sustainable use of forest resources.","PeriodicalId":52505,"journal":{"name":"Folia Oecologica","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44707308","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}

引用次数: 3

Foliar nutrition of date palm: advances and applications. A review 椰枣叶营养研究进展及应用。综述

IF 1.3

Folia Oecologica Pub Date : 2021-03-01 DOI: 10.2478/foecol-2021-0010

H. J. Shareef, Ibtihaj H. Al-Tememi, G. Abdi

引用次数: 2

White poplar (Populus alba L.) stands in Ukraine: the current state, growth specificities and prospects of using for forest plantations 白杨(Populus alba L.)站在乌克兰:现状，生长特性和用于森林人工林的前景

IF 1.3

Folia Oecologica Pub Date : 2021-03-01 DOI: 10.2478/foecol-2021-0008

N. Vysotska, M. Rumiantsev, Oleksii Kobets

{"title":"White poplar (Populus alba L.) stands in Ukraine: the current state, growth specificities and prospects of using for forest plantations","authors":"N. Vysotska, M. Rumiantsev, Oleksii Kobets","doi":"10.2478/foecol-2021-0008","DOIUrl":"https://doi.org/10.2478/foecol-2021-0008","url":null,"abstract":"Abstract The aim of the study was to assess the current state and evaluate the productivity of white poplar stands by natural zones within Ukraine and to define the prospects for their use for plantation forest cultivation. The objects of the study were white poplar stands in Ukrainian forests grown on the area of more than 7,600 hectares in various natural zones, namely Polissya (forest zone in Ukraine), Forest-Steppe, and Steppe. The study was carried out based on the analysis of forest inventory data (Ukrainian forest fund database) containing given stand characteristics such as origin, age, diameter, height, type of forest site conditions, etc. The characteristics were estimated by grouping the plots by age. The growth specificities (dynamics of the main mensuration characteristics) and the productive capacity of the white poplar stands were analyzed based on the developed tables. It was found that white poplar stands are mainly concentrated in Steppe and Forest-Steppe in Ukraine. The stands are of coppice or artificial origin; they grow in moist fairly fertile, fresh fairly fertile and moist fertile sites. The age distribution of the white poplar stands is severely imbalanced due to a significant predominance of stands aged over 40 years in all natural zones within Ukraine. More productive are the white poplar stands growing within Polissya and Forest-Steppe. The developed growth and productivity tables should be used when planning and prioritizing the relevant forestry interventions in white poplar stands.","PeriodicalId":52505,"journal":{"name":"Folia Oecologica","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42134488","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}

引用次数: 1

Determinants of abundance and habitat association of mammals in Barandabhar Corridor Forest, Chitwan, Nepal 尼泊尔奇特万Barandabhar走廊森林哺乳动物数量和栖息地关联的决定因素

IF 1.3

Folia Oecologica Pub Date : 2021-03-01 DOI: 10.2478/foecol-2021-0011

J. Adhikari, B. Bhattarai, T. Thapa

{"title":"Determinants of abundance and habitat association of mammals in Barandabhar Corridor Forest, Chitwan, Nepal","authors":"J. Adhikari, B. Bhattarai, T. Thapa","doi":"10.2478/foecol-2021-0011","DOIUrl":"https://doi.org/10.2478/foecol-2021-0011","url":null,"abstract":"Abstract Barandabhar Corridor Forest (BCF), the biologically functional corridor, is surrounded by the large human settlements that exploit the corridor where large mammals such as tigers, leopards and their prey such as ungulates, primates, and rhinoceros occur. This study aimed to evaluate major determinants that affect the distribution of large mammals in BCF, Chitwan, Nepal that connects the biologically significant Chitwan National Park with the Mahabharat range. The status and distribution of large mammals along the habitat and disturbance gradients were determined by using 29 line transects (mean length = 4.59 ± 0.38 km) that covered a linear distance of 133.13 km. The chital were the most abundant mammals (density per km2 (D) = 8.9095 ± 1.4570 and encounter rate per km (ER) = 1.49) followed by rhesus monkey (D = 38.896 ± 16.013, ER = 0.28), wild boar (D = 14.814 ± 3.57, ER = 0.62), northern red muntjac (D = 9.6566 ± 2.9514, ER = 0.62) and sambar (D = 5.392 ± 2.319, ER = 0.38). Similarly, the sign encounter rate of tiger and leopard was 0.435 and 0.503 respectively. Habitat types, human disturbances, and coverage of invasive and alien plant species (IAPs) played a key role in the distribution of large mammals. The occurrence of mammals was low nearer to the settlements and roads and coverage of IAPs and more nearer to the water resources. However, degradation of foraging grounds such as grasslands by succession and invasion of alien plant species added more threats to the survival of large mammals. Therefore, such a situation can be improved through the scientific management of forests and grasslands.","PeriodicalId":52505,"journal":{"name":"Folia Oecologica","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42546369","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}

引用次数: 1

Mid-term changes in the physiognomy of plant communities and functional plant groups define successional pathways of mountain vegetation in the province of Córdoba (Argentina) 植物群落和功能植物群的中期变化定义了阿根廷Córdoba省山地植被的演替路径

IF 1.3

Folia Oecologica Pub Date : 2021-03-01 DOI: 10.2478/foecol-2021-0002

M. Karlin, Sebastián Arnulphi, J. B. Salazar

引用次数: 1

Arsenic in forests – a short review 森林中的砷——一个简短的回顾

IF 1.3

Folia Oecologica Pub Date : 2021-03-01 DOI: 10.2478/foecol-2021-0004

P. Michopoulos

引用次数: 2

Nematicidal activity of essential oils of medicinal plants 药用植物精油的杀线虫活性

IF 1.3

Folia Oecologica Pub Date : 2021-03-01 DOI: 10.2478/foecol-2021-0005

O. Boyko, V. Brygadyrenko

引用次数: 17

Drought tolerance of three ethnomedicinal shrubs evaluated based on their seed germination rates at different drought levels induced by using polyethylene glycol (PEG6000) 聚乙二醇(PEG6000)对3种民族药灌木种子萌发率的耐旱性评价

IF 1.3

Folia Oecologica Pub Date : 2021-03-01 DOI: 10.2478/foecol-2021-0006

M. Dadach, Z. Mehdadi

{"title":"Drought tolerance of three ethnomedicinal shrubs evaluated based on their seed germination rates at different drought levels induced by using polyethylene glycol (PEG6000)","authors":"M. Dadach, Z. Mehdadi","doi":"10.2478/foecol-2021-0006","DOIUrl":"https://doi.org/10.2478/foecol-2021-0006","url":null,"abstract":"Abstract Sideritis incana, Stachys ocymastrum, and Thymus fontanesii are medicinal plants belonging to the Lamiaceae family and occurring in semi-arid lands in northern Algeria and in many other countries along the Mediterranean coastline. Despite the ecological and economic interests and also the questionable future these species may meet in their natural habitats, various aspects of their seed biology have not been recognised to this date. This study was intended for in situ conservation of these plants. The problem investigated was the germination response of seeds to different water potential levels attained with using different amounts of polyethylene glycol (PEG6000) (0, –0.03, –0.07, –0.2, –0.5, –1 and –1.6 MPa). In this way, the appropriate conditions and the threshold tolerance of seed germination against water stress were assessed. Seeds of the three species lacked primary/innate dormancy and they germinated abundant and fast in distilled water (S. incana – 65%; S. ocymastrum – 60% and T. fontanseii – 90%). Small seeds of T. fontanesii tolerated more water stress and germinated under up to –1 MPa (–10 bars). Large seeds of S. incana and S. ocymastrum, however, were more sensitive to the drought stress and germinated only under –0.5 MPa (–5 bars). Moreover, more studied parameters were found developing negative reponse under rising drought stress, such as postponed triggering of seed germination, decreased germination velocity and prolonged germination duration, as well as the average time of germination. Therefore, these three plants appear to postpone their establishment until arrival of conditions promising for germination, including sufficient rainfall.","PeriodicalId":52505,"journal":{"name":"Folia Oecologica","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41904015","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}

引用次数: 3

Adapting date palm offshoots to long-term irrigation using groundwater in sandy soil 在沙质土壤中利用地下水长期灌溉枣椰树枝

IF 1.3

Folia Oecologica Pub Date : 2021-03-01 DOI: 10.2478/foecol-2021-0007

H. J. Shareef, A. Alhamd, S. A. Naqvi, M. Eissa

{"title":"Adapting date palm offshoots to long-term irrigation using groundwater in sandy soil","authors":"H. J. Shareef, A. Alhamd, S. A. Naqvi, M. Eissa","doi":"10.2478/foecol-2021-0007","DOIUrl":"https://doi.org/10.2478/foecol-2021-0007","url":null,"abstract":"Abstract The date palm can grow in desert areas using high salinity groundwater by increasing the number of irrigation cycles. A field experiment was carried out on date palm cv. Sayer offshoots grown in sandy saline soil during the 2017 and 2018 growing seasons. The outcomes demonstrated that the application of saline (10 dS m–1) groundwater every four days increased plant height, number of new leaves, total chlorophyll, and relative water content. In turn, the hydrogen peroxide, malondialdehyde, and electrolyte leakage were reduced. Also, the effect of this treatment improved the growth of the plants, thus reduced the absorption of sodium, chloride, and increased potassium, then decreased the Na/K ratio. Cluster analysis showed two distinct cluster groups. In the first group, the dissimilarity between the treatments is illustrated by the influence of freshwater. While the second group showed the similarity between the treatments of four days and every week in the subgroup. Whereas treatment of two weeks duration shows the most detrimental effect on growth indices and chemical properties of offshoots. The utilization of saline groundwater in the water system of the date palm is the best option among the solutions possible in the current conditions of drought and thermal retention.","PeriodicalId":52505,"journal":{"name":"Folia Oecologica","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48303979","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}

引用次数: 7

Influence of Asclepias syriaca on soil nematode communities 叙利亚芦笋对土壤线虫群落的影响

IF 1.3

Folia Oecologica Pub Date : 2021-03-01 DOI: 10.2478/foecol-2021-0009

Michaela Jakubcsiková, A. Čerevková, M. Renčo

引用次数: 0