Silvicultural and dendroclimatic analysis of plantations Gmelin larch western part of the Putoran plateau

2015 ◽  
Vol 5 (3) ◽  
pp. 54-64
Author(s):  
Матвеев ◽  
Sergey Matveev ◽  
Гупалов ◽  
Dmitriy Gupalov
Keyword(s):  
Site Conditions ◽  
Putorana Plateau ◽  
Sanitary Condition ◽  
Dendroclimatic Analysis ◽  
Environmental Functions

The results of the silvicultural analysis of characteristics and condition of Gmelin larch stands and other components phytocoenosis in various site conditions: Larch sphagnum-ledum (slopes of the northern and southern exposure) and Larch alder (intermontane site) in the upper reaches of Lama lake (Putorana plateau). In the surveyed stands dominated by trees 150-200 years old. Plantings on the northern slopes are in satisfactory sanitary condition, stable, perform basic environmental functions. Sanitary condition of stands on the slopes of southern exposure - is not satisfactory.

scholarly journals ASSESSMENT OF THE ECOLOGICAL FUNCTIONS OF URBAN LANDINGS

2021 ◽  
Vol 4 (2) ◽  
pp. 166-170
Author(s):  
Sergey K. Farber ◽  
Dmitry V. Zlobin ◽  
Natalia S. Kuzmik
Keyword(s):  
Comparative Analysis ◽  
Market Price ◽  
Market Value ◽  
Co2 Absorption ◽  
Ecological Functions ◽  
Individual Tree ◽  
Sanitary Condition ◽  
Source Data ◽  
Expert Assessments ◽  
Environmental Functions

The method of determining the market price of ecological functions of urban landings is discussed. The methodology provides for the use of expert assessments based on the methods of similarity (analogy) and comparative analysis. The possibility of determining the price of ecological functions that have dimension (named) is revealed. As an example, the calculation of the market value of sanitary and hygienic environmental functions, namely, dust protection, gas protection and CO2 absorption (RUB/year), is shown. The results of the calculations are compiled in the form of a table - reference of the market value of environmental functions. The price of each individual tree (shrub), taking into account the size and sanitary condition, is adjusted and entered in the GIS attribute table. Further, as the source data is refined, the entire calculation chain is automatically updated.

Species diversity and its relation with soil factors under different site conditions in a desert-oasis ecotone

2013 ◽  
Vol 5 (3) ◽  
pp. 331
Author(s):  
Xie Ting-Ting ◽  
Su Pei-Xi ◽  
Zhou Zi-Juan ◽  
Li Shan-Jia ◽  
Zhang Hai-Na
Keyword(s):  
Species Diversity ◽  
Site Conditions ◽  
Soil Factors ◽  
Desert Oasis

Influence of Nesting Characteristics on Health of Wild Bee Communities

2020 ◽  
Vol 65 (1) ◽  
pp. 39-56 ◽  
Author(s):  
Alexandra Harmon-Threatt
Keyword(s):  
Climate Change ◽  
Nest Site ◽  
Site Conditions ◽  
Wild Bees ◽  
Nesting Biology ◽  
Habitat Disturbances ◽  
Wild Bee ◽  
Growth Development ◽  
Bee Communities ◽  
Nest Initiation

Nest site availability and quality are important for maintaining robust populations and communities of wild bees. However, for most species, nesting traits and nest site conditions are poorly known, limiting both our understanding of basic ecology for bee species and conservation efforts. Additionally, many of the threats commonly associated with reducing bee populations have effects that can extend into nests but are largely unstudied. In general, threats such as habitat disturbances and climate change likely affect nest site availability and nest site conditions, which in turn affect nest initiation, growth, development, and overwintering success of bees. To facilitate a better understanding of how these and other threats may affect nesting bees, in this review, I quantify key nesting traits and environmental conditions and then consider how these traits may intersect with observed and anticipated changes in nesting conditions experienced by wild bees. These data suggest that the effects of common threats to bees through nesting may strongly influence their survival and persistence but are vastly understudied. Increasing research into nesting biology and incorporating nesting information into conservation efforts may help improve conservation of this declining but critical group.

scholarly journals Monitoring the variation in the gut microbiota of captive woolly monkeys related to changes in diet during a reintroduction process

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Camilo Quiroga-González ◽  
Luis Alberto Chica Cardenas ◽  
Mónica Ramírez ◽  
Alejandro Reyes ◽  
Camila González ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Site Conditions ◽  
Microbiota Composition ◽  
Microbial Composition ◽  
Bacterial Composition ◽  
Diet Diversity ◽  
Woolly Monkeys ◽  
The Moment ◽  
Positive Effect ◽  
Lagothrix Lagothricha

AbstractMicrobiome is known to play an important role in the health of organisms and different factors such as diet have been associated with modifications in microbial communities. Differences in the microbiota composition of wild and captive animals has been evaluated; however, variation during a reintroduction process in primates has never been reported. Our aim was to identify changes in the bacterial composition of three individuals of reintroduced woolly monkeys (Lagothrix lagothricha) and the variables associated with such changes. Fecal samples were collected and the V4 region of the 16S rRNA gene was sequenced to determine gut microbial composition and functionality. Individual samples from released individuals showed a higher microbial diversity after being released compared to before liberation, associated with changes in their diet. Beta diversity and functionality analysis showed separation of samples from released and captive conditions and the major factor of variation was the moment of liberation. This study shows that intestinal microbiota varies depending on site conditions and is mainly associated with diet diversity. The intake of food from wild origin by released primates may promote a positive effect on gut microbiota, improving health, and potentially increasing success in reintroduction processes.

scholarly journals Innovative passive reinforcements for the gradual stabilization of a landslide according with the observational method

Landslides ◽  
2021 ◽  
Author(s):  
Lorenzo Brezzi ◽  
Alberto Bisson ◽  
Davide Pasa ◽  
Simonetta Cola
Keyword(s):  
Monitoring System ◽  
Low Cost ◽  
Economic Losses ◽  
Fe Model ◽  
Site Conditions ◽  
Observational Method ◽  
Rainy Period ◽  
Sustainable Solutions ◽  
Before And After ◽  
Set Up

AbstractA large number of landslides occur in North-Eastern Italy during every rainy period due to the particular hydrogeological conditions of this area. Even if there are no casualties, the economic losses are often significant, and municipalities frequently do not have sufficient financial resources to repair the damage and stabilize all the unstable slopes. In this regard, the research for more economically sustainable solutions is a crucial challenge. Floating composite anchors are an innovative and low-cost technique set up for slope stabilization: it consists in the use of passive sub-horizontal reinforcements, obtained by coupling a traditional self-drilling bar with some tendons cemented inside it. This work concerns the application of this technique according to the observational method described within the Italian and European technical codes and mainly recommended for the design of geotechnical works, especially when performed in highly uncertain site conditions. The observational method prescribes designing an intervention and, at the same time, using a monitoring system in order to correct and adapt the project during realization of the works on the basis of new data acquired while on site. The case study is the landslide of Cischele, a medium landslide which occurred in 2010 after an exceptional heavy rainy period. In 2015, some floating composite anchors were installed to slow down the movement, even if, due to a limited budget, they were not enough to ensure the complete stabilization of the slope. Thanks to a monitoring system installed in the meantime, it is now possible to have a comparison between the site conditions before and after the intervention. This allows the evaluation of benefits achieved with the reinforcements and, at the same time, the assessment of additional improvements. Two stabilization scenarios are studied through an FE model: the first includes the stabilization system built in 2015, while the second evaluates a new solution proposed to further increase the slope stability.

scholarly journals Paradox of Deadwood Circular Bioeconomy in Kenya’s Public Forests

2021 ◽  
Vol 13 (13) ◽  
pp. 7051
Author(s):  
Sylvester Ngome Chisika ◽  
Joon Park ◽  
Chunho Yeom
Keyword(s):  
Social Economic ◽  
Status Quo ◽  
Forest Resource ◽  
Global Literature ◽  
Production And Consumption ◽  
Policy Suggestions ◽  
The Status ◽  
Domestic Use ◽  
Public Forests ◽  
Environmental Functions

With the rising demand for energy, the forest-based circular bioeconomy is gaining recognition as a strategy for sustainable production and consumption of forest resources. However, the forest-based bioeconomy remains underexplored from the perspective of deadwood conservation in public forests. While conducting a literature review and examining the case of Kenya, this study fills a gap in the literature to provide policy suggestions for sustainable forest resource utilization. The results from global literature indicate that deadwood performs essential social, economic, and environmental functions in the circular bioeconomy and sustainable development. Similarly, in Kenya, deadwood resources provide many socially beneficial bioproducts and services. However, the absence of scientific research and detailed guidelines for deadwood conservation may lead to the distortion of the ecological balance in public forests because of the legally sanctioned removal of deadwood, particularly firewood. Moreover, if the status quo remains, with approximately 70% of the growing population consuming deadwood for domestic use and the demand increasing, as shown by the current wood deficit in the country, there will be a major dilemma concerning whether to conserve deadwood for biodiversity or energy. Therefore, averting crisis and providing maximum deadwood value to society requires guidelines and comprehensive research in addition to a cultural and behavioral shift in energy consumption in a manner that embraces the forest-based circular bioeconomy of deadwood.

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