Local and landscape factors affecting communities of plants and diurnal Lepidoptera in black coal spoil heaps: Implications for restoration management

Green spaces are very important for an urban environment. Trees in cities develop under more stressful conditions and are, therefore, more susceptible to parasite including mistletoe infestation. The aim of this study was to investigate the ecological, microclimatic, and landscape factors causing the spread of European mistletoe (Viscum album L.) in urban conditions. The most numerous hosts of mistletoe were Tilia cordata (24.4%), Acer platanoides (22.7%), and Populus nigra (16.7%). On average, there were more than 10 mistletoe bushes per tree. The mass mistletoe infestations (more than 50 bushes per the tree) were detected for Populus × berolinensis, Populus nigra, and Acer saccharinum. The largest number of infected trees was detected in the green zone (city parks), historical housing estates, and green zone along water bodies. Based on the results of principal component analysis (PCA), the main factors causing the spread of mistletoe on the urban territories are trees’ age and relative air humidity. The factors reflecting environmental pollution (the content of heavy metals in the soil and the concentration of nitrogen dioxide in the air) did not statistically affect the mistletoe distribution in the study area. However, this result may be due to the heterogeneity of other parameters in the studied areas. Therefore, additional research is required to more accurately interpret the data on the relationship between environmental pollutions and distribution of mistletoe infestation of trees in urban areas.

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Factors Affecting Tourism Destination: A Case Study in Ha Tien City, Vietnam

European Journal of Humanities and Social Sciences ◽

10.24018/ejsocial.2021.1.6.179 ◽

2021 ◽

Vol 1 (6) ◽

pp. 70-80

Author(s):

Da Van Huynh ◽

Hang Thi Thuy Tran ◽

Trieu Quang Pham ◽

Xuan Thanh Duong ◽

Dong Trung Pham

Keyword(s):

Regression Analysis ◽

Rational Choice ◽

Rational Choice Theory ◽

Choice Theory ◽

Empirical Studies ◽

Tourist Destination ◽

Factors Affecting ◽

Landscape Factors ◽

Tourism Services

On the basis of theories of tourism, services, rational choice theory and previous empirical studies, the study proposes a research framework including 6 factors affecting tourists’ decisions when choosing Ha Tien as a destination to visit. The research sample was carried out by surveying by questionnaire with 100 tourists who visited Ha Tien City. Evaluation of the reliability of the scales shows that the destination information factor has not yet ensured the reliability of the scale. Regression analysis shows that there are 3 out of 6 independent factors that most influence tourists’ decision to choose when choosing Ha Tien as a tourist destination. In which, environmental and landscape factors have the most influence on tourists’ decision to choose Ha Tien as a destination. As a result, the article proposes some solutions to contribute to attracting more and more tourists to Ha Tien City.

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