scholarly journals The Influence of Lichens To 137cs Migration in Pine Forest Conditions of Polissya Nature Reserve

2017 ◽  
Vol 27 (1) ◽  
pp. 112-115
Author(s):  
O.V. Belska ◽  
S.I. Matkovska
Keyword(s):  
Nature Reserve ◽  
Pine Forest ◽  
137Cs Migration ◽  
Forest Conditions

scholarly journals Analysis of burn ability and subsequent changes in the mountain forest of the Crimean reserve

2018 ◽  
Vol 7 (4) ◽  
pp. 91-100 ◽  
Author(s):  
Кирилл Левченко ◽  
Kirill Levchenko ◽  
С. Матвеев ◽  
S. Matveev
Keyword(s):  
Forest Fires ◽  
Nature Reserve ◽  
Visual Analysis ◽  
Pine Forest ◽  
Mountain Forest ◽  
Negative Consequences ◽  
Aesthetic Value ◽  
Complete Destruction ◽  
The Republic ◽  
Forest Conditions

In the Crimean mountains, the forest is of exceptional ecological, scientific, aesthetic value. The studies conducted on the territory of the largest nature reserve Crimea – Crimean reserve, located in the southern mountainous part of the Republic of Crimea. The study of the influence of fires in pine forest these conditions, is with the aim of preservation of the unique plantings nature reserve and the development of new measures of fire forest, their negative consequences. In the objectives of the research included the identification and assessment of factors, influencing the rise of fire forest in mountain pine forest of Crimea, the analysis of the dynamics of the quantity and intensity of fires in different forest conditions, analysis subsequent changes in pine forest in terms of the protected area. Research methodology provides analysis of climatic, forest conditions of the enterprise and the establishment of subsequent changes, the study of species and age structure of forest, taxation characteristics of plantations. To accomplish the tasks laid 4 sample area, and selected 4 areas passed a forest fire for visual analysis. Based on the study established, territory of the nature reserve susceptible to forest fires throughout the all year. The pine forest, presents the main species Pinus pallasiana and Pinus silvestris, subject to strong changes, even after lower forest fires. Complete destruction from any fire subject plantations Juniperus hemisphaerica on the lower tableland mountain of Chatyr-Dag. The absolute majority of forest fires caused by people. The results of these studies are introduced in the work of the enterprise.

scholarly journals Mapping Spatial Variations of Structure and Function Parameters for Forest Condition Assessment of the Changbai Mountain National Nature Reserve

2019 ◽  
Vol 11 (24) ◽  
pp. 3004 ◽  
Author(s):  
Lin Chen ◽  
Chunying Ren ◽  
Bai Zhang ◽  
Zongming Wang ◽  
Yeqiao Wang
Keyword(s):  
Soil Fertility ◽  
Nature Reserve ◽  
Stand Density ◽  
Condition Assessment ◽  
Structure And Function ◽  
Forest Age ◽  
Stand Volume ◽  
Forest Condition ◽  
And Function ◽  
Forest Conditions

Forest condition is the baseline information for ecological evaluation and management. The National Forest Inventory of China contains structural parameters, such as canopy closure, stand density and forest age, and functional parameters, such as stand volume and soil fertility. Conventionally forest conditions are assessed through parameters collected from field observations, which could be costly and spatially limited. It is crucial to develop modeling approaches in mapping forest assessment parameters from satellite remote sensing. This study mapped structure and function parameters for forest condition assessment in the Changbai Mountain National Nature Reserve (CMNNR). The mapping algorithms, including statistical regression, random forests, and random forest kriging, were employed with predictors from Advanced Land Observing Satellite (ALOS)-2, Sentinel-1, Sentinel-2 satellite sensors, digital surface model of ALOS, and 1803 field sampled forest plots. Combined predicted parameters and weights from principal component analysis, forest conditions were assessed. The models explained spatial dynamics and characteristics of forest parameters based on an independent validation with all r values above 0.75. The root mean square error (RMSE) values of canopy closure, stand density, stand volume, forest age and soil fertility were 4.6%, 33.8%, 29.4%, 20.5%, and 14.3%, respectively. The mean assessment score suggested that forest conditions in the CMNNR are mainly resulted from spatial variations of function parameters such as stand volume and soil fertility. This study provides a methodology on forest condition assessment at regional scales, as well as the up-to-date information for the forest ecosystem in the CMNNR.

scholarly journals Renewable processes under maturing coniferous stands crown in Vologda region

2021 ◽  
Vol 25 (2) ◽  
pp. 10-18
Author(s):  
L.V. Zarubina ◽  
◽  
A.A. Karbasnikov ◽  
D.A. Peshin ◽  
◽  
...  
Keyword(s):  
Growth And Development ◽  
Pine Forest ◽  
Vologda Region ◽  
Forest Condition ◽  
Forest Conditions

Evaluation of renewable processes was carried out on the territory of Totma area in Vologda region. The objects of study were six sites of flourishing coniferous stockings in different forest condition. The laying of test plots was carried out taking into account the requirements of OST 56-69–83. Undergrowth accounting was carried out taking into account the height and state of life. The processing of field materials was carried out by methods generally accepted in forestry. According to the results, we can make a conclusion that provision for growth and development of spruce staddle in flourishing pine stockings in different forest conditions are unpleasant. The pine staddle is absent at all. There is enough amount of coniferous staddle under spruce canopy for formation spruce-deciduous or spruce planting after logging works. As recommendation for saving aboriginal forest and reducing expenses on the reforestation works in pine forest crop after logging works, we offer to hold alternating gradual fell with intensity of 30 % and implementation of measures in assistance for natural renewal as soil mineralization in processes of main executed logging works. We think that implementing fell is necessary to time to seed year.

scholarly journals Nowe stanowisko Botrychium lunaria (Ophioglossaceae) w Krakowie na tle danych historycznych

2020 ◽  
pp. 647-654
Author(s):  
Magdalena Zarzyka-Ryszka ◽  
Przemysław Ryszka
Keyword(s):  
Plant Communities ◽  
Vascular Plants ◽  
Small Area ◽  
Nature Reserve ◽  
Pine Forest ◽  
High Acidity ◽  
Ne Poland ◽  
Poor Fen ◽  
Scheuchzeria Palustris ◽  
Polyhumic Lake

A detailed study of vascular plants in the Tobolinka Nature Reserve (Augustów Forest, NE Poland) was carried out in July 2016 and February 2020. The reserve covers a very small area, and the diversity of its plant communities is very low due to the high acidity of its habitats (extremely poor fen surrounding a small polyhumic lake; wet and mesic pine forest). Only 48 species were recorded, including five species red-listed nationally (e.g. Goodyera repens, Scheuchzeria palustris).

The use of comprehensive evaluation index for assessing the condition of pine stands the State Forest Natural Reserve «Semey Ormany»

2016 ◽  
Author(s):  
А.В. Данчева ◽  
С.В. Залесов
Keyword(s):  
Forest Type ◽  
Pine Forest ◽  
The State ◽  
Dry Forest ◽  
Pine Forests ◽  
Biological Stability ◽  
Forest Stands ◽  
Vital Status ◽  
Forest Conditions ◽  
Artificial Origin

В работе представлены результаты исследований состояния естественных и искусственных сосновых древостоев ленточных боров Прииртышья на основе использования комплексного оценочного показателя (КОП). Объектом исследований являлись средневозрастные высокополнотные сосняки, произрастающие в сухих лесорастительных условиях (тип леса С2) государственного лесного природного резервата (ГЛПР) «Семей орманы». Исследования проводились на 8 пробных площадях, заложенных для изучения влияния лесохозяйственных мероприятий различной интенсивности на биологическую устойчивость, пожароустойчивость и рекреационную привлекательность сосняков Восточно-Казахстанского региона (ленточные боры Прииртышья). В результате проведенных исследований установлено, что по показателю жизненного состояния исследуемые сосновые древостои характеризуются как «ослабленные». Проведен анализ поврежденности сосновых древостоев. Установлено, что по рассчитанному показателю поврежденности древостоев (Dv), исследуемые естественные сосняки характеризуются как «здоровые», искусственные – как «поврежденные». На основании проведенных исследований доказано, что для более точной диагностики состояния сосновых древостоев и проведения в них соответствующих лесохозяйственных мероприятий можно использовать показатель поврежденности древостоев. Проведен анализ состояния исследуемых сосновых древостоев по комплексному оценочному показателю или коэффициенту напряженности роста (КОП). Изучено изменение КОП в зависимости от категорий крупности и жизненного состояния деревьев. Выявлено, что в высокополнотных естественных и искусственных древостоях наименьшими значениями КОП характеризуются деревья, относящиеся к категории жизненного состояния «здоровые». В результате проведенного анализа выявлено, что со снижением крупности деревьев отмечается увеличение значения КОП. Найдена тесная взаимосвязь КОП с категориями крупности и показателем жизненного состояния деревьев, которая аппроксимируется уравнением линейной функции. Установлено, что комплексный оценочный показатель (КОП) является достоверным показателем состояния и биологической устойчивости древостоя и может быть использован в качестве одного из главных критериев для обоснования необходимости проведения лесохозяйственных мероприятий, в частности, рубок ухода в исследуемых насаждениях. In the result of conducted researchers studied of state of pine forest stands natural and artificial origin which grown in dry forest conditions (forest type C2) in belt pine forests of the Priirtyshye based on using of complex estimative indicator (CEI). Object of research are high-density middle-aged pine forests which grow in dry forest conditions (forest type C2) in the state forest natural fenced reserve «Semey ormany». Studies were conducted on 8 plots which planted for study the impact of different intensities of silvicultural operation on the biological stability, fire resistance and recreational appeal of pine forests of the East Kazakhstan region (belt pine forests of the Priirtyshye). The studies found that the vital status of the pine forest stands is rated as «weakened». Analysis of damage of pine forest stands conducted. It was found that on index damage of stands (Dv), natural pine forests are characterized as «healthy», artificial pine forests ? as «damaged». On the basis of the conducted researches it is proved that for a more accurate diagnosis of the state of pine forest stands and conduct the forestry activities can be used index damage of stands. Analysis of state of pine forest stands through the use of complex estimative indicator or the coefficient of growth of tension (CEI) conducted. The change of complex estimative indicator (CEI) was evaluated depending on the categories fineness and categories of vital status of the trees. The results of researches have shown that in the high-density forest stands of pine of natural and artificial origin the lowest value of complex of the estimated indicators (CEI) characterized trees of categories of vital status «healthy». It was found that with decreasing of categories of fineness of the trees increase the value of the complex of the estimated indicators (CEI). It is found that the relationship of complex estimative indicator (CEI) with fineness of trees and vital status of pine forests approximated by the linear functions. It is established that complex estimative indicator (CEI) is a reliable indicator of the state and the biological stability of the forest stand and can be used as one of the main criterion of necessity to conduct forest silvicultural operation (thinning) in the studied pine forests.

scholarly journals ALTITUDINAL DISTRIBUTION OF ASTERACEAE INVADERS, AUSTROEUPATORIUM INULIFOLIUM AND AGERATINA RIPARIA, IN THE DISTURBED FOREST OF BATUKAHU NATURE RESERVE, BALI

2016 ◽  
Vol 10 (2) ◽  
pp. 159
Author(s):  
Laily Mukaromah
Keyword(s):  
Nature Reserve ◽  
High Abundance ◽  
Strongly Correlated ◽  
Altitudinal Distribution ◽  
Major Threat ◽  
Forest Sites ◽  
Lower Elevation ◽  
Disturbed Forest ◽  
Disturbed Habitats ◽  
Forest Conditions

Biological invasions are a major threat to biodiversity worldwide. Here, we aim to assess the occurrence of two invasive Asteraceae, Austroeupatorium inulifolium and Ageratina riparia, and the extent of their distributional range along altitudinal gradients in Mt Pohen, Batukahu Nature Reserve, Bedugul, Bali. The cover abundance of Austroeupatorium inulifolium and Ageratina riparia were measured by establishing 92 plot samples in four different forest conditions encompassed elevational ranges from the lowest (forest borders) to the highest elevation of Mt Pohen. Results showed that the abundance of both Asteraceae invaders were strongly correlated with disturbed habitats located at lower elevation. The forest borders at these forest sites were characterized by dense thicket of Austroeupatorium inulifolium and high abundance of Ageratina riparia. Both Asteraceae invaders reach their maximum altitudinal range up to the highest peak of the Mt Pohen. Results highlight that high abundance of these Asteraceae invaders which forms dense cover may lead to major forces of change in plant communities and forest ecosystem.

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