scholarly journals Soil Erosion and Land Degradation on Trail Systems in Mountainous Areas: Two Case Studies from South-East Brazil

Soil Systems ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 56 ◽  
Author(s):  
Rangel ◽  
Jorge ◽  
Guerra ◽  
Fullen

This paper addresses the role of soil erosion and mass movements on mountainous trails due to human trampling on steep slopes. This is the case of several trails situated on forested areas in South-East Brazil, even those located in protected areas. Two methods were used to achieve the research objectives. Firstly, analyses of microtopography using erosion bridges, which was monitored four times on Caixa D’Aço natural pool trails in Serra da Bocaina National Park. Secondly, disturbed and undisturbed soil samples were collected at 0–10 cm depth at four sites on Água Branca trail in Serra do Mar State Park. Using this methodology, we assessed soil degradation in two different humid tropical environments. Generally, trampling combined with deficient trail management, play important roles in degrading soils in both areas. Bioengineering techniques should be used to recuperate these trails, which are used by tourists and local residents. We hope this research work may contribute towards improved management in Brazilian protected areas.

Check List ◽  
2016 ◽  
Vol 12 (6) ◽  
pp. 2020
Author(s):  
Gabriel Dalla Colletta ◽  
Vinicius Castro Souza ◽  
Thaís Elias Almeida ◽  
Fernanda Nunes Cabral ◽  
Ivan Jeferson Diogo ◽  
...  

We present  a list of vascular plants found in Legado das Águas, Reserva Votorantim, a private reserve having an area of approximately 35,000 ha that spans the municipalities of Tapiraí, Miracatú, and Juquiá, in the state of São Paulo, Brazil. The reserve is part of a complex of state-protected areas including Alto Ribeira Touristic State Park, Intervales State Park , Carlos Botelho State Park, Jurupará State Park, and Serra do Mar State Park. Together, these form an important and large area of continuous and well-preserved forest. Our study, which involved two main floristic surveys in March/April 2013 and April 2014, recorded 768 species, representing 131 families and 432 genera. The majority of species were angiosperms (619) representing 106 families and 370 genera. There were also two species of gymnosperms belonging to two genera in separate families; 147 species of ferns and lycophytes belonging to 23 families and 60 genera. In demonstrating the presence of almost 800 species of plants, of which 16 are threatened, our study highlights the importance of floristic surveys and the critical role of private protected areas in managing and preserving native flora.


2020 ◽  
Vol 13 (4) ◽  
pp. 80-91
Author(s):  
S. V. Kudryashov

The article deals with complex and controversial issues related to the uprising and liberation of Prague in May 1945. Interpretation of the events became acute and caused lively discussions in connection with the demolition of the monument to Marshal I. V. Konev on April 3, 2020 by the order of the local municipality. The Czech Republic is also discussing the idea of «perpetuating the role of other liberators» of the capital – soldiers of the ROA division, which for two days (May 6-7) provided assistance to the rebels. Using new documents from the Central archive of the Ministry of defense of the Russian Federation, the author draws a conclusion about the limited influence of the Vlasov units. They, indeed, brought confusion to the German ranks, but early in the morning of May 8, they themselves left Prague on a rapid march. After that, fighting and negotiations between the rebels and the German command continued. The article emphasizes that the main goal of the Soviet military operation from 6 to 11 May 1945 was the defeat of the German Army Group Center. The liberation of Prague was only part of a powerful offensive by three Soviet fronts. Heavy battles for Prague did not happen, but the entry of Soviet tanks into the Czech capital and the subsequent jubilation of local residents became a symbol of the end of the war in Europe. The author concludes that the demolition of monuments to Soviet soldiers and commanders is a manifestation of internal political struggle in the countries where it occurs, and the Czech Republic is only one of these examples.


Human Ecology ◽  
2021 ◽  
Author(s):  
Liz Alden Wily

AbstractI address a contentious element in forest property relations to illustrate the role of ownership in protecting and expanding of forest cover by examining the extent to which rural communities may legally own forests. The premise is that whilst state-owned protected areas have contributed enormously to forest survival, this has been insufficiently successful to justify the mass dispossession of customary land-owning communities this has entailed. Further, I argue that state co-option of community lands is unwarranted. Rural communities on all continents ably demonstrate the will and capacity to conserve forests – provided their customary ownership is legally recognized. I explore the property rights reforms now enabling this. The replication potential of community protected forestlands is great enough to deserve flagship status in global commitments to expand forest including in the upcoming new Convention on Biological Diversity (CBD).


2021 ◽  
Vol 13 (3) ◽  
pp. 1369
Author(s):  
Tianning Lan ◽  
Zhiyue Zheng ◽  
Di Tian ◽  
Rui Zhang ◽  
Rob Law ◽  
...  

The value co-creation behavior of residents can contribute to the sustainable development of intangible cultural heritage (ICH) tourism. This paper aims to provide a theoretical framework that uses “cognition–affection–behavior” theory to explain how the two variables of tourism development perception and emotional solidarity affect the value co-creation participation behavior of the local residents in the context of intangible cultural heritage tourism while considering the mediating role of emotional solidarity. This study empirically investigates Meizhou Island in Fujian Province, China as an example by using a structural equation model (SEM). Results show that the perception of local residents toward the benefits of tourism development has a significant positive impact on their emotional solidarity and value co-creation participation behavior, whereas their perception toward the costs of tourism development has a significant negative impact. In addition, the emotional solidarity of these residents has a significant positive impact on their value co-creation participation and plays a mediating role in the relationship between the tourism development perceptions of local residents and their value co-creation participation behavior. This study has important theoretical and practical significance for the management of ICH tourist destinations.


2020 ◽  
Vol 12 (1) ◽  
pp. 11-24
Author(s):  
Kristina S. Kalkan ◽  
Sofija Forkapić ◽  
Slobodan B. Marković ◽  
Kristina Bikit ◽  
Milivoj B. Gavrilov ◽  
...  

AbstractSoil erosion is one of the largest global problems of environmental protection and sustainable development, causing serious land degradation and environmental deterioration. The need for fast and accurate soil rate assessment of erosion and deposition favors the application of alternative methods based on the radionuclide measurement technique contrary to long-term conventional methods. In this paper, we used gamma spectrometry measurements of 137Cs and unsupported 210Pbex in order to quantify the erosion on the Titel Loess Plateau near the Tisa (Tisza) River in the Vojvodina province of Serbia. Along the slope of the study area and in the immediate vicinity eight representative soil depth profiles were taken and the radioactivity content in 1 cm thick soil layers was analyzed. Soil erosion rates were estimated according to the profile distribution model and the diffusion and migration model for undisturbed soil. The net soil erosion rates, estimated by 137Cs method range from −2.3 t ha−1 yr−1 to −2.7 t ha−1 yr−1, related to the used conversion model which is comparable to published results of similar studies of soil erosion in the region. Vertical distribution of natural radionuclides in soil profiles was also discussed and compared with the profile distribution of unsupported 210Pbex measurements. The use of diffusion and migration model to convert the results of 210Pbex activities to soil redistribution rates indicates a slightly higher net erosion of −3.7 t ha−1 yr−1 with 98% of the sediment delivery ratio.


Author(s):  
R C Segundo ◽  
P R English ◽  
G Burgess ◽  
S A Edwards ◽  
O MacPherson ◽  
...  

The role of stockmanship in relation to the wellbeing of farm animals has been emphasised in the UK Codes of Recommendations for the Welfare of Farm Livestock (MAFF, 1983). Moreover, previous research work has demonstrated important effects of good and bad stockmanship not only on welfare but also on growth, lactational and reproductive performance of pigs and other farm livestock (Hemsworth et al, 1987). There is a need, therefore, to establish the factors which motivate and demotivate stockpeople since the degree of job satisfaction is likely to have a considerable influence on the attitude and performance of stockpeople and on their empathy with the animals in their care. With this objective in mind, a questionnaire was designed to investigate the aspects which could have an influence on the job satisfaction of the stockpeople involved in pig production.


2017 ◽  
Vol 62 ◽  
pp. 241-252 ◽  
Author(s):  
Stephen Schweinsberg ◽  
Simon Darcy ◽  
Mingming Cheng

Unity Journal ◽  
2021 ◽  
Vol 2 ◽  
pp. 1-17
Author(s):  
Anand Sing Bhat

Some of the theories of nation building have been dedicated to the study of link between nation and nationalism; others are attributed to explore nation building, state building, social integration, national integration and even conflict transformation during various historical periods. However, nation building is a normative concept used by academicians and nation builders alike to study the role of armed forces in nation building in recent times. Although research has conducted on ethnicity and nation building in Nepal, a little is known about application of theoretical perspective to explore the role of Nepali Army in nation building. Apparently, this article argues that the level of theoretical awareness of academicians and nation builders needs improvement and multiple theories of nation building are relevant to explore the role of Nepali Army in nation building during various enclaves of Nepali nation. Important issues like what are the relevant theories in Nepali context to analyse nation building? Their implication during the historical times to study the link of Nepali Army with nation building needs to be studied. Hence, this paper comparatively examines a nation building theories and their relevant implications during various enclaves of Nepali nation particularly applauding the role on Nepali Army. Conceptual framework based on Saunder's Research Onion Peeled (2007) method was used with qualitative design in a way of inductive approach to conduct the research work to investigate the research questions. Comparative document study, library research, quick survey with policy makers, government employees, professors, university students APF Officers and Army Officers based on purposive sampling method have been used. Study found that Nepali nation passes through its own way of building the nation in various enclaves, none of the theories are complete to study the employment of Nepali Army to produce visible and encouraging results. The level of theoretical awareness of academicians and nation builders needs further improvement. For this, multiple theories particularly related to social transformation, infrastructural development in support of centre to periphery relation; social integration and nationalism are appropriate.


Author(s):  
Jie-Hua Sun ◽  
Zhi-Dong Zhou ◽  
Saeid Sahmani ◽  
Babak Safaei

The prime objective of this research work is to develop an efficient small scale-dependent computational framework incorporating microstructural tensors of dilatation gradient, rotation gradient, and deviatoric stretch gradient to analyze nonlinear lateral stability of cylindrical microshells. The numerical strategy is established based upon a mixed formation of the third-order shear deformable shell model and modified strain gradient continuum mechanics. The graphene nanoplatelet reinforcements are assumed to be randomly dispersed in a checkerboard scheme within the resin matrix. Accordingly, to extract the effective material properties, the Monte Carlo simulation together with a probabilistic technique are employed. The numerical solution for the microstructural-dependent nonlinear problem is carried out via the moving Kriging meshfree method having the capability to accommodate accurately the essential boundary conditions using proper moving Kriging shape function. It is represented that the role of the stiffening characters related to the effect of microstructural dilatation gradient, rotation gradient, and deviatoric stretch reduces continuously by going to deeper territory of the load-deflection stability path. Moreover, it is indicated that among various microstructural gradient tensors, the stiffening character of the rotation gradient is higher than deviatoric stretch gradient, and the stiffening character of the latter is more considerable than the dilatation gradient tensor.


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