Rural reconstruction plays a pivotal role in the revitalization of rural areas and the development of regions. Understanding the pattern and direction of rural settlement reconstruction is crucial ...for effectively coordinating urban and rural development, as well as promoting regional rural revitalization. The present study proposes a novel approach to elucidate the evolution and spatial reconstruction of rural settlements by integrating features of agglomeration effect and ecological effect. By employing GIS spatial analysis technology and ecosystem service value modeling, the research analyzes the combined spatial agglomeration and ecological value characteristics of rural settlements in an arid oasis area, specifically focusing on the Hexi Corridor. Based on the analysis, the study identifies specific rural settlement reconstruction zoning and directions for optimization, considering rural settlement accessibility. The study reveals three key findings: (1) There are significant differences in the scale density and spatial distribution of rural settlements across the Hexi Corridor. (2) The overall ecological environment quality is good, and there is significant spatial differentiation in the ecosystem service value, influenced by topographic factors. (3) The optimal layout mode for rural settlements in the Hexi Corridor is the combination type of 'higher-ecological higher-density'. Based on the combined agglomeration effect and ecological effect features, the research determines the reconstruction scope of alienated rural settlements. Additionally, four predominant reconstruction modes are identified: urban agglomeration type, central village construction type, internal coordination type, and ecological protection type. The study proposes viable reconstruction paths for rural settlements based on these modes.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
With his efforts, the cooperation project has been implemented in a smooth manner; it has improved the level of medical equipment in Beijing Children's Hospital, optimized the treatment process for ...children, and expanded the hospital's management methods while achieving practical improvement in diagnostic capabilities and medical technology. Among the eight life support training courses that focused on model operation drills, the interactive teaching methods were highly praised by the trainees. The emphases of these training efforts involved internal medicine, surgery, emergency medicine, anesthesia, radiology, ultrasound, hospital management, and information technology.
Based on the land utilization data of the Lanzhou-Xining urban agglomerations in 2000, 2005, 2010 and 2015, using the methods of transfer matrix, the paper makes a quantitative analysis of the ...spatial and temporal evolution process, characteristics and laws of various types of national land space from 2000 to 2015. The results are as follows. 1) Urban construction space, industrial and mining construction space and rural living space continued to increase, while agricultural production space showed a decreasing trend, and green ecological space and other ecological space showed an overall increasing trend from 2000 to 2015. 2) The characteristics of national land space transfer are as follows: the transition is relatively active from 2000 to 2005 and from 2010 to 2015, mainly from green ecological space and agricultural production space to urban construction space, rural living space and industrial and mining construction space.
Surface solar radiation is affected by many random mutation factors, which makes the ultra-short-term prediction face great challenges. In this paper, the surface radiation observation station in the ...northwest (Dunhuang) desert area with broad PV prospects is selected as the research object. The input parameters of the test sample are: cloud forecast value, reflectivity and brightness temperature value of a satellite cloud image closest to the forecast time. The MATLAB software is used to model the prediction program and to predict the surface solar radiation in the next 10 minutes. A combined algorithm of satellite cloud images and neural network is applied to predict surface solar radiation for the next 10 minutes and is compared with the measured surface solar radiation. The model is a lightweight calculation model, it satisfies the calculation precision of engineering requirements. The results show that the diurnal variation trend of measured and predicted radiation values is basically the same. Among them, the prediction accuracy of the model for cloudy days is higher, while for snowy days with more abrupt changes, the prediction error of abrupt points is larger. The model can provide reference for ultra-short-term prediction of surface radiation.
Along with the rapid advance of urbanization, urban disease appear. For detection city disease earlier, the ecological city is put in this article. The ecological city is regarded as the human body ...to plan, construct and manage city with the thought of “law in the human body”. The city’s population, land, water, air, transportation, culture, are considered as the body’s nerves, muscles, blood, breath, limbs and the vigor, respectively. And a quantitative standard is determined for each object of study. If the quantitative value is abnormally large or small, it indicates that the city is unhealthy, the early warning system for city will put forward, the causes will lookup and the treatment will give.
Domestic and international scholars have paid considerable attention to research on intercity co-opetition relationships. Based on the systematic examination and analysis of previous research ...results,the article,starting with the theory of the ecological niche,regards the modern city as special life system with ecosophy from the perspective of phytocoenology. Cities in certain regions may have various relationships. Co-opetition between cities usually plays an essential role in whether the cities can achieve continuous development together in the same city group. The percentage of a particular city’ s resource occupation in its group is reflected by its comprehensive development level,the utilisation of resources is represented by the niche breadth,and the co-opetition of 20 cities in county areas of the Hexi Corridor is clarified by cluster analysis and the structural division of the eco-system. Finally,a realistic strategy for co-opetition is put forward by virtue of the ecological niche, aiming to provide theoretical suggestions for coordinated and continuous development in city groups of the Hexi Corridor. It is concluded that all the cities in the region have made mixed progress in terms of their comprehensive development levels,with their ecological niches experiencing mixed ups and downs. The positive correlation observed between a city’s comprehensive development level and its ecological niche width shows that the occupation and utilisation of resources are two supplementary coefficients. Among the 20 county-level cities in the region,Jiayuguan and Jin Chuan District have always been categorised as Tier ?,as they always top the list of cities with highest ecological niche; Liang Zhou District,Su Zhou District and Gan Zhou District are Tier ? cities; Akesai,Yumen,Dun Huang and Su Bei are Tier ?; and the remaining 11 cities are Tier ?. Based on the analysis of the eco-system structure inthe cities of the Hexi Corridor,together with theories such as niche dislocation,expansion,coordinated development,the following corresponding co-opetition strategies are proposed: Jiayuguan District and Jinchuan District need to play a radiating and exemplary role,with coordinated development in the Liangzhou District,Suzhou District and Ganzhou District.This activity will drive other cities’ development,reaching a balance for the ecology niche in the city system of the Hexi Corridor.
Combustibles, topography, and weather factors are the three essential factors affecting forest fire behavior, and current forest fire spread models need to consider weather factors fully. This paper ...proposes a forest fire spread method based on environmental weather factors to present a visualized simulation of forest fire spread in the natural environment. Forest pyrolysis differs based on water content, so a single-tree pyrolysis model with temperature as its core has been constructed to describe the differences in forest pyrolysis during different seasons visually. In addition, based on the improved Huygens principle as the theoretical basis for forest fire spread, weather factors such as wind speed, wind direction, and precipitation controlled by weather are coupled with the forest fire spread process. And the forest fire spread in three-dimensional scenarios is simulated by considering environmental factors. The visualization of the forest fire extinguishing process caused by precipitation is realized. Finally, the interaction between rain and snow, terrain and trees is realized when precipitation affects the corresponding landscape and vegetation texture to enhance the realism of the constructed forest environment. In short, this paper proposes a forest fire spread method based on environmental weather factors, which intuitively expresses the influence of different weather factors on forest fire spread, thereby improving the immersive experience of the related senses and realizing realistic scene roaming.
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•Based on the single tree pyrolysis model, differentiating forest burning.•Visualization of the influence of simulated weather factors on forest fire behavior.•Use texture mixing technology to construct 3D forest weather scene.
The analysis of spatial of national land development pattern is of great significance for optimizing the layout of spatial of national land development and realizing regional sustainable development. ...The comprehensive evaluation on spatial of national land pattern of Lanzhou-Xining urban agglomeration can deepen the scientific cognition of rational spatial of national land development of regional urban agglomeration and provides a theoretical basis for space governance. Based on the actual situation of Lanzhou-Xining urban agglomeration, this paper analyzed the carrying capacity of resource and environment in counties and districts, clarified the spatial difference of carrying capacity of resources and environment, and proposed the characteristics of land development pattern of Lanzhou-Xining urban agglomeration. As shown by the results, the spatial pattern of the natural carrying capacity index is distinctly different, showing a decreasing trend from the study area center to the periphery and also from the east to the west; High carrying capacity potential areas are mainly concentrated in Lanzhou, Xining and their surrounding counties; the spatial difference in the comprehensive index of resource and environment carrying capacity is large, and the contribution of natural carrying capacity to the resource and environment carrying capacity is higher, the spatial distribution of high value area is more discrete, and the spatial distribution of low value area has obvious agglomeration characteristics.
We propose a joint method to reconstruct dynamic fluid volume sequences from a monocular video. Compared with previous methods, sophisticated equipment or careful experimental setups are not ...required. In order to recover the surface detail and maintain its physical property, a joint reconstruction method coupled with shape from shading (SFS) and smoothed particle hydrodynamics (SPH) algorithms is proposed. SFS is the first used to recover the height field for each frame of the video, and then the height field of the first frame is further extended to a volume as the initial state of the SPH simulation. Based on the above initial data, the key idea of our method is to optimize a SPH model to simulate the fluid volume sequences conforming to the laws of physical motion, and correct the fluid volumes to refine the surface details conforming to the recovered height field by SFS. Our experimental results compare favorably to the state of the art in terms of global motion features and fluid surface details and demonstrate the performance of our approach.
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