Analysis and Research on Spatial Nodes of Historical Villages based on Spatial Syntax Theory: Cuiwei Village in Qianshan Area of Zhuhai as an Example

This research takes Cuiwei Village located in Qianshan District of Zhuhai City as an example. The village is investigated and analyzed through field research, and the street scale, spatial structure, functional characteristics of streets, internal commercial distribution forms, and functions in the Cuiwei Historic Block are studied and analyzed. Based on the convex space analysis method and the line of sight analysis method in the space syntax theory, with the help of the Depthmap software, the complex street nodes, that is, the space of the two nodes A and B analyzed. Through the establishment of a viewshed model, including the analysis of the viewport integration degree, the viewport agglomeration degree, the viewport connection value and the spatial characteristics of the historical area, the most representative traditional buildings in the village, namely the Sanwang Temple and the Weishi Mansion, are selected. =N and when the radius R=3, observe the changes of the two parameters, the integration of the visual field and the visual depth of the two historical buildings. And with the help of Baidu time machine photos in different periods to observe and record the store's changes and people's behavioural characteristics. The results show that: at the present stage, the coordination of villages is poor, people's recognition in the village space is weak, and people cannot use local perception to reflect the overall space. There are obvious sub-interfaces between the interior of the village and the outside world—good but poor global intelligibility. After an on-the-spot investigation and analysis, it can be seen that although people can walk out of Cuiwei Village, they are always in a state of confusion, and it is difficult to grasp the spatial form of the overall area. Therefore, the space syntax analysis results are consistent with the field survey results, so this research method has good reference value and reference significance in the study of village space.

The ridge-to-reef approach on Cicia Island, Fiji

Many Pacific countries and territories embrace an officially recognized ‘ridge-to-reef’ approach to environmental management. This is the case of Fiji, where the Lau Seascape Strategy 2018–2030, led by Conservation International, aims for integrated natural resource management across 335 895 km2. This area includes Cicia Island, which deserves particular attention since, years before the design of the Lau Seascape Strategy, its population developed its own informal ridge-to-reef scheme, involving a combination of certified organic agriculture and locally managed marine closures. Based on 1 month of ethnographic fieldwork, this paper presents this scheme and highlights local perception and conceptualization of its positive effects on both the land and the sea. These reflect the iTaukei (Indigenous Fijian) concept of vanua, which intrinsically connects the health of the land, the sea, and their (human and non-human) dwellers, while stressing the importance of addressing land-sea processes and management efforts beyond an ecological perspective, i.e. through an engagement with the iTaukei relational ontology.

Building South Vietnamese delta settlements in the Whirlwind of climate change

Deltaic settlements worldwide are facing unprecedented challenges. This is especially the case in the Mekong Delta, where high population density, capital, and service provision increasingly intersect to expose vulnerable communities to the adverse effects of climate change. Due to a limited understanding of climate change, the presence of unique hydrological phenomena, and anthropogenic actions, the complex situation of the delta and its settlements has led to the implementation of inadequate architectural and urban solutions. This has caused abrupt socio-economic changes, shifting from an ecological integration mindset to a normative and disruptive approach resulting in the imposition of unsuitable models. Community capacity, which includes low-cost, circular and reuse practices, can offer more ecological perspectives on sustainable building in the delta. Illustrating local in-depth environmental expertise, communities have developed socially and environmentally adapted construction cultures. This paper argues for an alternative paradigm in which cities and settlements promote and integrate local building knowledge to enable architectural and urban forms to play a leading role in the resilience of South-Vietnamese deltaic cities and to mitigate developmental impact on the environment. Findings show a diversity of options and capacities at the local scale and flexibility in housing design. They also show that persistent gaps in policymaking and inconsistent perception of risk affects architectural and urban climate resilience. The discussion and conclusion advance the potential of local capacity in the building of South-Vietnamese deltaic cities, the need to integrate local knowledge and community capacity into policy, and the necessity to better assess local perception barriers to formulate localised, integrated and multisector policies to build resilient and sustainable South-Vietnamese settlements.

Is the Co-management Approach Effective for Mangrove Conservation in West Africa?

The conservation management literature has recently documented the increasing use of co-management approach to effectively conserve natural resources. Although most research qualify the co-management as highly effective, some authors also reported a number of uncertainties associated with the use of this conservation approach. Using the Mono Transboundary Biosphere Reserve (MTBR) as a case study, this work assessed the effectiveness of the co-management towards mangroves conservation in West Africa. Data were collected in two protected sites of the reserve (one in Togo and the other in Benin). Exploratory sequential mixed method via in-depth interviews (n=17), focus group discussions (n=14), household survey (n=274) and expert-based survey (n=10) were carried out, and subjected to the InVEST-based Habitat Risk Assessment (HRA) model, chi-square test and simple probability of likelihood. Results indicated that under the current co-management regimes, the anthropogenic stressors recorded in the reserve put the entire surface area of mangroves in Benin (100%) under low risk. Contrarily, 42% of the mangrove cover are under low risk and 58% under medium risk in Togo. Local perception also portrayed a large reduction of mangrove degradation in the study sites following the adoption of the co-management approach in the two countries. This study suggests that the implementation of the co-management approach has lowered anthropogenic stressors to mangroves in the reserve. However, there are some peculiar challenges (e.g., financial support provision, regular community engagement), which need to be thoroughly researched and addressed for a more effective conservation of mangroves in the MTBR.

An Improved Swin Transformer-Based Model for Remote Sensing Object Detection and Instance Segmentation

Remote sensing image object detection and instance segmentation are widely valued research fields. A convolutional neural network (CNN) has shown defects in the object detection of remote sensing images. In recent years, the number of studies on transformer-based models increased, and these studies achieved good results. However, transformers still suffer from poor small object detection and unsatisfactory edge detail segmentation. In order to solve these problems, we improved the Swin transformer based on the advantages of transformers and CNNs, and designed a local perception Swin transformer (LPSW) backbone to enhance the local perception of the network and to improve the detection accuracy of small-scale objects. We also designed a spatial attention interleaved execution cascade (SAIEC) network framework, which helped to strengthen the segmentation accuracy of the network. Due to the lack of remote sensing mask datasets, the MRS-1800 remote sensing mask dataset was created. Finally, we combined the proposed backbone with the new network framework and conducted experiments on this MRS-1800 dataset. Compared with the Swin transformer, the proposed model improved the mask AP by 1.7%, mask APS by 3.6%, AP by 1.1% and APS by 4.6%, demonstrating its effectiveness and feasibility.

Remote Sensing Image Scene Classification Based on Global Self-Attention Module

The complexity of scene images makes the research on remote-sensing image scene classification challenging. With the wide application of deep learning in recent years, many remote-sensing scene classification methods using a convolutional neural network (CNN) have emerged. Current CNN usually output global information by integrating the depth features extricated from the convolutional layer through the fully connected layer; however, the global information extracted is not comprehensive. This paper proposes an improved remote-sensing image scene classification method based on a global self-attention module to address this problem. The global information is derived from the depth characteristics extracted by the CNN. In order to better express the semantic information of the remote-sensing image, the multi-head self-attention module is introduced for global information augmentation. Meanwhile, the local perception unit is utilized to improve the self-attention module’s representation capabilities for local objects. The proposed method’s effectiveness is validated through comparative experiments with various training ratios and different scales on public datasets (UC Merced, AID, and NWPU-NESISC45). The precision of our proposed model is significantly improved compared to other methods for remote-sensing image scene classification.

Recognizing the Similar and Thus Accepting the Other: The European and Japanese Traditions of Building With Wood

This article shows that building issues have not been tackled fundamentally differently in Europe and Japan despite large cultural differences. Different cultural expressions must not necessarily be equated with different thinking. The paper contrasts two apparently contradictory views. Numerous analyses of Japanese “otherness” in “Western” as well as local perception dominate the literature. But the results of extensive architectural field surveys seem to indicate the contrary. These results show similar and equal backgrounds and conditions resulting in similar and equal building types and techniques. They show that our ways of addressing a task are prompted by pragmatism. Broadly identical solutions were developed worldwide long before globalization. Yet this realization does not allow us to conclude that equal appearances can be taken to be equal in content.

From trend to threat? Assessing the sustainability of wild edible plant foraging by linking local perception to ecological inference

Wild edible plants as culturally-appropriate sources of nutrition and for food security are now well-recognised. In Europe, the use of wild edible plants is shifting from a subsistence activity to an emerging trend in high-end gastronomy. The environmental impacts of this shift are poorly known. Foraging is increasingly popular for personal consumption and commercially, not least in the Nordic countries where popularity is fuelled by the New Nordic Food movement. Here, we evaluate if this trend entails biodiversity conservation risks in Norway. In collaboration with the Norwegian Association for Mycology and Foraging, we conducted 18 face-to-face interviews with key stakeholders and we published an online questionnaire filled by 219 recreational and professional foragers. We enquired on what species are harvested, by whom and how, where do foragers learn and what are their perspectives on the sustainability of foraging. We combined these data with an assessment of foraging impact based on foraging pressure, ecological traits and conservation assessments. Our results show that 272 different wild edible plants are foraged and that this is mostly sustainable.However, some risks arise from the harvest of threatened plants, the potential spread of invasive species, and the overharvesting of extremely popular or ‘fashionable’ species. Foraging fosters a strong connection with the natural environment and the majority of foragers report to forage as part of a sustainable lifestyle. We suggest that careful encouragement to forage and the participatory development of local guidelines for sustainable foraging in Norway can enhance people-nature relationships while safeguarding foraged plant populations.

Developing a Conceptual Model for the Post-COVID-19 Pandemic Changing Tourism Risk Perception

The global coronavirus (COVID-19) pandemic has tremendously reshaped the tourism industry and destinations worldwide. Tourism destinations and the travel market require empirical research to support their post-pandemic strategies, especially in relation to the influences of changing perceptions of tourism risks, experience, and behavioural intention. This paper aims to propose a conceptual model and its hypotheses of the perceived tourism risks of natural and man-made disasters to explain the associations between the expected travel experience and ultimate travel behaviour. This paper provides a foundation for further empirical study based on a literature review and discussion. Several areas of theoretical development are identified for immediate research: (1) comparison of self-interpretation and understanding of multi-dimensional tourism risks of natural and man-made complexity in epidemics across a great variety of geographical and geo-political territories; (2) a complex web of influence to changing safety concerns and risk perception by information dissemination; (3) the effect of destination selection or hesitation in travel intention caused by changing destination image; and (4) local perception of the epidemic and health crisis. Destination authorities are recommended to (1) strengthen the preparedness and emergency responses of an effective disaster management process, (2) maintain the emotional solidarity of both tourists and local residents, and (3) mitigate multiple dimensions of the perceived risks, mainly associated with the health and psychological risks of those affected.