The study’s objective is to determine the factors affecting the intention to buy products with environmentally friendly packaging in the urban area of Vietnam with a specific case study in Ho Chi Minh City. The study uses the theory of planned behavior (TPB) to build an empirical model to evaluate the factors affecting consumer behavior. Primary data were collected through a direct survey of 485 customers in the city using a convenience sampling method. We built and tested the scale of variables using Cronbach Alpha analysis and used exploratory factor analysis (EFA) to select the main factors to be included in the impact regression model. The research results show the impact of five factors: (1) the price of products with environmentally friendly packaging on the customers’ sense of community, (2) the consumer’s attitude toward products with eco-friendly packaging with customers’ conception of effectiveness, (3) social influence, (4) personal image concerns, and (5) quality of environmentally friendly packaging to intention to buy products with environmentally friendly packaging of urban residents in Ho Chi Minh City. The factor related to the attitude and perception of the effectiveness for the environment has the most substantial impact, followed by the quality of environmentally friendly packaging, the price factor, and the sense of community.

Truong DD. 2021. Community awareness and participation in biodiversity conservation at Phong Nha-Ke Bang National Park, Vietnam. Biodiversitas 23: 583-594. Local community's perception and attitude towards biodiversity conservation are essential to the sustainable management of national parks in Vietnam. The conservation of biodiversity in national parks is facing pressures from economic development activities, which has led to the degradation of the ecological values ??of the national parks. People's awareness and their participation in conservation management are crucial to the sustainable management of national parks. This study examined the awareness and participation of local people in biodiversity conservation at Phong Nha-Ke Bang National Park (PN-KBNP), Vietnam. PN-KB is one of the national parks with the highest biodiversity values ??in Vietnam and is recognized by UNESCO as a world heritage site. To assess participation in conservation management, the study implemented a Contingent Valuation Method for estimating the willingness to pay of households in the buffer zone for biodiversity conservation in PN-KBNP. A survey was implemented to 358 households randomly selected in five communes adjacent to the park. Focus group discussions and in-depth interviews with selected key informants were also practiced for the management of insight information. The result showed that local villagers generally hold a fairly high perception of biodiversity values and positive attitudes towards biodiversity conservation at PN-KBNP. This positive perception comes from the close interaction between household livelihoods and the national park on a daily basis. However, awareness of national park management rules are not high. In addition, local people are willing to sacrifice part of their income to conserve biodiversity for current and future generations. On an average, each household was willing to pay 297,000 VND/year for biodiversity conservation. Payment levels, age, length of residency and education were observed to significantly impact on villagers' participation in biodiversity conservation initiatives. The balance between development and conservation was found to be the key in Park management, where communities need to be given more power to plan, monitor and implement conservation activities while establishing clear forest land user right for households and communities.

The objective of this study was to establish drought classification maps to simulate and calculate the lack of discharge in the Ba River basin in Vietnam. The maps were established using three meteorological drought indices (the Standardized Precipitation Index (SPI), the Drought Index (J), and the Ped Index (Ped)), the Soil and Water Assessment Tool (SWAT) model, and the hydrological drought index (K_Drought). The results from the calculation of the SPI, Aridity Index (AI), and Ped at three stations (An Khe, Ayunpa, and MDrak) showed that the J index was suitable for the study area. Based on the J index, an extreme drought was predicted to occur at the Ayunpa, An Khe, and MDrak stations. During the calibration process, the SWAT Calibration Uncertainties Program (SWAT-CUP) model, with automatic algorithms, was used to select the parameters to optimize the SWAT model. For the calibration and validation, the observed discharge at two hydrology stations, An Khe and Cung Son, from the periods 1981–1991 and 1992–2002, respectively, were used. The simulated discharge was found to be acceptable, with the Nash–Sutcliffe efficiency (NSE), Percent bias (PBIAS), and R² reaching good levels in both calibration and validation. The results from the calculation of the drought index (K_Drought), and the established drought classification maps in 2016, showed that the most affected areas were the communes of the Gia Lai and Dak Lak provinces. The results from the simulation and calculations were found to be consistent with the situation that occurred in practice. The application of meteorological and hydrological drought indices, as well as the hydrological model, to support impact assessments of drought classification in space and time, as well as the establishment of forecasting and warning maps, will help managers to effectively plan policy responses to drought.

Perception and attitude toward wetland values and conservation are essential to the sustainable management and wise use of this resource. This study examined the attitudes of local communities towards the values and management of Xuan Thuy National Park (XTNP) in Vietnam. The study also explores factors affecting conservation attitudes in the study area. A survey was implemented to 677 households randomly selected in five communes adjacent to XTNP. In addition, focus group discussions, and interviews with selected key informants were conducted. The study shows that local villagers generally hold positive attitudes towards wetland conservation. However, awareness of the threats to wetlands and the national park rules are not high. People are willing to sacrifice part of their income to preserve wetlands for future generations. Age, length of residency, and schooling year are observed to be significantly impacting attitudes towards wetland conservation. It is critical to connect management agencies and people to propagate conservation regulations and XTNP zoning for sustainable wetland management and conservation. Social networks and the internet are potential vehicles for increasing understanding and connection.

Agriculture is an important sector of Vietnam, in which agricultural extension (AE) is a long-standing activity but was officially institutionalized in 1993 when Vietnam reformed its economic model. The AE system in Vietnam is organized quite closely from the central to local levels with various forms of AE. This study assesses the satisfaction of farmers with AE services in Quang Binh province, Vietnam. The results of a survey of 455 farmers show a positive relationship between quality and satisfaction. Factors such as assurance, reliability, and sympathy are important factors in AE service quality. The study also provides recommendations to strengthen AE services, including updating technical information, organizing demonstration models, and stronger investment in AE systems at all levels.

Climate change is one of the biggest challenges facing human development in the coming decades. To cope with climate change, greening transportation becomes one of the most important solutions, including the key role of consumers. This study aimed to determine the factors affecting customer’s intention to buy electric motobikes in Hanoi, Vietnam. We used the theory of planned behavior to develop research models. Study data was collected by convenient sampling method through a survey with 600 participants in Hanoi. The study used SPSS 22.0 software to perform descriptive statistics, Cronbach’s Alpha test, Exploring Factor Analysis and multiple linear regression for data processing. The results showed six factors including Environmental awareness, Attitude, Perceived behavioral control, Attractiveness of other means, Subjective norms and Promotion policies had significant impact on the customers’ intention to buy electric motorbikes, of which factor Attractiveness of other means had the most decisive influence. From results, the paper discussed and gave some managerial implications to enhance the intention to buy electric motorbikes of people in Hanoi and expand proposals to other cities in Vietnam.