Chai, D.; Zhang, D.; Sun, Y.; Yang, S.; Xiong, F. Research on the City Network Structure in the Yellow River Basin in China Based on Two-Way Time Distance Gravity Model and Social Network Analysis Method. The impacts of natural environment on water quality, e.g., climate and topography, have been less studied in comparison with land use and socio-economic factors. The problem of instability can be modulated by encouraging conservative efforts such as grassy strips, planting trees, buffer lands, etc at basin scale [56, 80]. The above-mentioned data sets are publicly available and are at 0.50.5 latitude/longitude grid resolution. Increase in P (P, DOC) is positively supported by the catchment area, which may be due to several potential reasons including inputs from sewage, decomposition of organic yard wastes, leaf litter, grass clippings and plant residue in soil by microorganisms [45, 46]. 4. In California, winds off the Pacific ocean carry moisture-laden air toward the coast. Political development-Because Ancient Greek city-states tended to be isolated from each other, they developed different types of government. Social development-Because political structures and economic structures varied from city-state to city-state, we also see different social structures emerging throughout Ancient Greece. Latitude. How was citizenship connected to the Greek polis? The results showed that socio-economic and topographic factors threaten the stability of CEWQ parameters and we should focus on alleviating the problem of instability by Fukushima et al. While they all share mountains as a basic geographic characteristic, they also have differences. several techniques or approaches, or a comprehensive review paper with concise and precise updates on the latest (1) The complementary network of industrial functions in urban agglomerations tends to be complicated and compact. 12 main water quality parameters are used in the current study, which are given in table S2. most exciting work published in the various research areas of the journal. The temperature characteristics of a region are influenced by natural factors such as latitude, elevation, and the presence of ocean currents. Location and climate have large effects on income levels and income growth through their effects on transport costs, disease 2017 The Author(s). By which act dyarchy was introduced in india? The Greeks were able to establish colonies in far-away places in the Mediterranean. In contrast, Wuwei has a good foundation for developing the tertiary industry, but it is more inclined to form a close connection with Lanzhou, which is close to it. The factors are: 1. Influence and Prediction of oasis urban expansion on Cultivated land space in Arid region: A case study of Hexi Corridor. Some nonlinear relations are reported in table 1 with their corresponding R2 and P-values which include: P (P, NOx-F) with mean slope (R2=0.624, P=0.001), P (P, PO43-F) with P-manure with (R2=0.624, P=0.001), T (T, NO2-F) with N-manure (R2=0.563, P=0.001), T (T, P-F) with P-fertilizer (R2=0.695, P=0.010) and T (T, P-F) with P-manure (R2=0.920, P=0.000). Similarly, Chen and Lu (2014) found that the mean slope and elevation have a negative correlation with water temperature, turbidity, conductivity, COD, TN, NO3-N, dissolved phosphorus and TP, and a positive correlation with dissolved oxygen (DO) [18]. Chemical fertilizers have been the major cause of the green revolution, while manure is the traditional source for soil nutrition. Disclaimer/Publishers Note: The statements, opinions and data contained in all publications are solely The implementation of major national strategies, such as the ecological protection and high-quality development strategy of the Yellow River Basin, the ecological protection and restoration of the Qilian Mountains, the Western Grand Tourism Loop, and the construction of Silk Road tourism destinations, has significantly improved the ecological management level in the Hexi Corridor region, and cultural and tourism industry integration development. The mean slope has a positive coefficient for T (T, NOx-F). This means that coastal locations tend to be cooler in summer and warmer in winter than places inland at the same latitude and altitude. This is because of ocean currents that carry masses of warm or cool air to coastal locations. Figure 4. Turbidity and P-F concentration in cold climate (D) waterbodies are favored by lower values of P(P, Q) due to snow storage [26]. Mountain ranges are natural barriers to air movement. So, feel free to use this information and benefit from expert answers to the questions you are interested in! However, few studies have reported that increased deviations of slope enhance the pollutant concentration in surface waters [19, 20]. Heated ground causes air to rise which results in lower air pressure. Rugged terrain restricts the concentration of population in any area. The analysis indicates that tourism industry keep tight correlation with the economic growth of the global economy while there are so many factors which affect the tourism industry positively and negatively which in the long run or short run affect the global economy of the world negatively and positively. In tropical climate class (A), gross domestic product (GDP) played an important role in stabilizing the CEWQ. Figure 3. In California, winds off the Pacific ocean carry moisture-laden air toward the coast. Natural Resources. Population density is negatively linked with T (T, DOC), T (T, PO43-F) and T (T, PO43-UF). Thessaly has warm, dry plains and lower mountain ranges. Spatial and temporal evolution of economic links between Lanzhou and Xining urban agglomeration based on the accessibility. Chang (2008) found that slopes act as a sink for suspended solid, biological oxygen demand, chemical oxygen demand (COD), total phosphorous (TP) and total nitrogen (TN) parameters [16]. Yang, L.-J. This may be due to several reasons: Firstly, it can be a consequence of irrigation tailwater discharge which absorb heat [39, 40] and sweeps P-fertilizer from cropland which enhance water temperature. Published by IOP Publishing Ltd Climate 4. ; Wu, K. Evolution of industrial investment network in the central core area of Beijing-Tianjin-Hebei under the background of functional decentralization. Klages-Mundt, A.; Minca, A. Optimal intervention in economic networks using influence maximization methods. The climate of any particular place is influenced by a host of interacting factors. Bevilacqua, C.; Sohrabi, P.; Hamdy, N. Spatializing Social Networking Analysis to Capture Local Innovation Flows towards Inclusive Transition. These two variables did not capture spatial variability at the basin scale, which is its main limitation. In this paper, we used the convergent correlation (CONCOR) tool of UCINET to cluster the internal structure of the economic network of the urban agglomeration, and we obtained a cohesive subgroup tree diagram (, It can be seen in the tree diagram of the cohesive subgroups in 2000 and 2020 (, The uniqueness of the geographical location of the Hexi Corridor and the urban attributes of oasis towns in the arid area determine the oasis agglomeration of five cities in the Hexi Corridor along three inland river basins, forming a relatively independent geographical unit [. The elasticity approach was used. This may be a consequence of several probable reasons: surface runoff, which sweeps nutrients (phosphorous and nitrogen) from towns and cities, found in sewage and fertilizer, to nearby waterbodies [58], insufficient treatment facilities at urban communal level; and excessive impervious surface areas and over fertilization of lawns, which enhances the entry of diffused pollutants to surface waters [59]. ; Wang, L.-C.; Li, Q.-G.; Yan, C.-X. How does topography affect economic development? ; Lv, R.; Zhang, X.-B. Article metric data becomes available approximately 24 hours after publication online. Latest answer posted January 22, 2019 at 2:51:11 PM. Closeness centrality (CC) measures the proximity of a citys contact distance. Oymyakon is the coldest permanently-inhabited place on Earth and is found in the Arctic Circle's Northern Pole of Cold. 2023. ; formal analysis, X.X. Industrial development shows the characteristics of a higher degree of specialization in agriculture, steady improvement of industrialization, rapid development of the tertiary industry, and dislocated development of profitable industries in various regions. Africa has eight major physical regions: the Sahara, the Sahel, the Ethiopian The most important geographical and topographical features of Greece were its mountainous terrain and its placement as a peninsula in the Mediterranean. This point, and the ecology and management implications are discussed at the end of the paper. The Hexi Corridor is connected with Qinghai in the south by the Qilian Mountains and Inner Mongolia in the north by the Beishan Mountain system. By contrast, the impact of topographical features on the response of typical water quality parameters to climate factors has not been investigated. Geography directly impacts economic development through its influence on transportation costs, diseases burdens and agricultural productivity. Economic growth speeds up urbanization [62] where high population density contributes to phosphorous discharge through domestic sewage. This paper analyzes the industrial functional connection of the Hexi Corridor urban agglomeration through the urban flow intensity and industrial functional complementarity index, calculates the economic connection intensity based on the revised gravity model, and uses social network analysis to explore the evolution of the economic network structure, drawing the following conclusions. Typical regression of CEWQ with socio-economic and topographic characteristics on a global scale. Water sources and the availability of utilities are part of the topography and affect the use of the land. In this paper, the social network analysis software UCINET 6.2 was used to analyze the network density, centrality, and cohesive subgroups of the economic connection network of the urban agglomeration. Miao, H.-L.; Zhou, H. Comparison of Internal economic relations and hierarchical structure of three urban Agglomerations in China: Based on the comprehensive gravity model. Economic development-Those city-states that were located on the Mediterranean Sea developed strong trading economies over sea trade routes. We discuss the socio-economic and topographic factors that cause instability of CEWQ parameters and conclude with some suggestions for watershed managers to bring sustainability in freshwater bodies. Spatial pattern evolution of economic links in Shandong Peninsula urban agglomeration. Geography plays a significant role in economic development. Watershed topography, such as catchment area and slope, is an important element that affects surface waters and basin hydrology [1518]. several social, demographic, economic, political and historical factors affect population distribution. They cover physical parameters, and O, C, N, and P-parameters, which are representative and significant from a global perspective. Rugged terrain restricts the concentration of population in any area. In temperate climate class (C), GDP played the same role in stability, while the runoff coefficient, slope, and population density fuelled the risk of instability. Axis development model construction. How does topography affect economic activities? The impact of fertilizer application and socio-economic features on surface water quality vary by watershed. [1] There are four branches of economic geography. Today, geography still plays an important but much more nuanced role in the development of economies. Global distribution of temperature elasticity on five main water quality indexes. It measures average life expectancy, level of education and income for each country in the world. Feature Papers represent the most advanced research with significant potential for high impact in the field. Generally, topographic features regulate surface water quality variables. [ 16] found that chemical oxygen demand in water of Lake Kasumigaura, the second largest lake in Japan, increased with rising air temperature. Environmental Research Letters, The Coastal Range allows for some condensation and light precipitation. Sparta, on the other hand, was a monarchy, with a line of hereditary monarchs. 41771130. This study was carried out on major watersheds of the World. Air expands as it rises, and the fewer gas moleculesincluding nitrogen, oxygen, and carbon dioxidehave fewer chances to bump into each other. The above discussion shows that the response of the precipitation elasticity of water quality parameters to topographic and socio-economic, secondary determining factors, is simple. Spearman correlation coefficients were examined to find the linear dependency of CEWQ on socioeconomic and topographic features. Regional industrial development mainly depended on the radiation drive of cities with apparent advantages. Conceptualization, X.X. How does topography affect human life? The water quality data were collected by the local authorities of their corresponding countries. More specifically speaking, topography aids in changing precipitation and temperature. P-fertilizer has a positive coefficient for P (P, temperature). Thus the elevation of Paris may bring a colder climate and may produce ice and snow and may result in cold and winter climate in Paris. 2023; 12(2):274. The mean elevation of the sub-watershed is positively associated with T (T, P-UF) and T (T, PO43-F). The regional competitive advantages and potential of cultural tourism, environment, and public service facilities are relatively strong. This can make Landforms might include physical features like mountains or oceans. Abstract. As a result, humidity increases and orographic clouds and precipitation can develop. The response of DOC is site specific and complex to climatic drivers [67]. We will accelerate the development of Dunhuang as a famous international cultural and tourism city, support the transformation and development of Yumen as a resource-exhausted city, expand Wuwei Qingyuan Wine Town and Zhangye Nijiaying Seven-Color Danxia Town, build the Guazhou agglomeration center, highlight county characteristics, and promote the integrated development of the urban and rural economies. Editors select a small number of articles recently published in the journal that they believe will be particularly A general rule of thumb in understanding weather is warm air rises and cold air sinks. 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