scholarly journals A Spatial Analysis Of Settlement Pattern Of Jakham River Basin In Pratapgarh District, Rajasthan

2021 ◽  
Vol 9 (6) ◽  
Author(s):  
Varun Binda
1980 ◽  
Vol 45 (4) ◽  
pp. 866-875 ◽  
Author(s):  
Susan T. Evans

In a recent report, Michael Smith proposes that the primary determinant of the settlement pattern of the southeastern Basin of Mexico during the Late Horizon (A.D. 1350-1520) was marketplace exchange. This assumption, and the use of the central place market model in analyzing the pattern, are critically evaluated and found to be unwarranted. A review of data and theory leads to the conclusion that environmental and political factors outweigh commerce in shaping the settlement pattern in this area.


2020 ◽  
Author(s):  
Pol Shutov

<p>The aim of the study is the spatial analysis of the structure of the river basin in identifying anthropogenic-transformed landscapes. The object of the study is the water catchment basin of the «Yayva» river, which is a left, mountain-taiga tributary of the «Kama» river and flows in the Perm region, in the Russian Federation. The river basin covers an area of km<sup>2 </sup> 6502, long main river, 304 km, the average slope of the basin 1,85<sup>0</sup>, height difference is significant and is 687 meters. the Catchment has a high degree of ruggedness of 0.91 km/km2. The sharp asymmetry of the catchment basin is expressed, so the left part of the basin is more pronounced.</p><p>With the use of remote sensing satellite images with high spatial resolution Landsat – 8 and Sentinel – 2, based on digital elevation model and GIS tools identify the types of land cover of the basin. In the ArcGis 10.4 software environment, morphometric indicators of the river basin at the level of small rivers are determined. The map of the basin territorial structure is developed on the basis of a vector relief model with a section height of 25 meters. The areas of morphological elements of river basins are unevenly distributed over the absolute height and slope of the terrain, causing spatial heterogeneity of landscape structures.</p><p>In the zones of the sources of watercourses, water-collecting funnels of a rounded shape are formed, the boundaries of which are clearly deciphered from space images. In the direction from the mouth to the source along the main river, the average absolute height of the terrain increases from 170 to 540 meters, the height differences also increase, while the area of the catchment funnels increases from 0.04 km<sup>2</sup> to 13.4 km<sup>2</sup>.</p><p>On well-drained slopes with average humidity, fern spruce-fir forests are represented, and on wet slopes and areas with temporary watercourses, sparse high-forest taiga and raw horsetail spruce forests are developed. Also, waterlogging is manifested in flat areas with poorly developed river network, where drainage is insufficient, so in the lower reaches of the basin, the wide valley of the river is swamped.</p><p>For each morphological element of the catchment area, a characteristic type of vegetation is determined. The most common wetland landscapes are confined to catchment funnels (37%), which is especially pronounced in mountainous conditions (upper reaches of the basin at an altitude of 500 meters or more); less wetlands (17%) occur in inland river valleys.</p><p>Transformed landscapes (cuttings and secondary forests) are confined to the upper parts of the slopes of the catchment surface (14%) and arcs of the watershed system (10%). The largest share of urbanized areas corresponds to inland river valleys (3%). Areal dynamics of anthropogenically transformed landscapes is determined. As a result of the analysis of the dynamics of vegetation cover, the growth of the area of cuttings, secondary forests and anthropogenic objects that form the basins of river systems was established.</p><p>The work was carried out with the financial support of The Russian Foundation for basic research No. 19-05-00363 A.</p>


2012 ◽  
Vol 12 ◽  
pp. 906-916 ◽  
Author(s):  
Zhang Qingqing ◽  
Xu Hailiang ◽  
Fu Jingyi ◽  
Yu Pujia ◽  
Zhang Peng

Author(s):  
Naveed M ◽  
◽  
He HS ◽  
Yasir QM ◽  
Du H ◽  
...  

Cotton is an excessive growing fiber crop in the world. In Pakistan, climate warming is hurting the cotton crop. To identify countermeasures of climate change impacts on crop production, it is needed to explore the changes in crop yield and their relationship to climate change. This study, we conducted spatial analysis of cotton yield and climate data in the Indus River basin in Pakistan from 1989- 2018. We analyzed the trend in cotton production indices and climate variables using the Mann-Kendal nonparametric test, and the impact of climate change on cotton yield through Pearson’s correlation and best-subset multivariate linear regression model. Sunshine hours positively impacted on cotton yield, but an increasing trend in average temperature, minimum temperature and air relative humidity in main crop areas had a negative impact on the cotton crop. Our results illustrate the relationship between the cotton yield and climate change variables on regional basis in the Indus River basin, Pakistan. This research could provide a reference for understanding the intolerance of cotton in the Indus River basin, Pakistan to climate change.


GEOGRAFIA ◽  
2018 ◽  
Vol 42 (3) ◽  
pp. 145-157
Author(s):  
Daniel Dias de ANDRADE ◽  
João dos Santos Vila da SILVA ◽  
Vera Aparecida FIGUEIREDO ◽  
Elisa Calhau de CASTRO

Natural characteristics may contribute to the erosion of the soil and to environmental imbalances, and in most cases, they initiate the imbalances that will be exacerbated by human activities. The presence of asymmetry in a frequency diagram is a valuable fact, and may indicate irregularity in the occurrence of events or aggregation of events in preferred locations. Thus, this work aims to demonstrate the use of Geographic Information Systems (GIS) of statistical analysis based on patterns of frequency, density, distribution and spatial dependence of sample points through a cutout of the mapping of the geotechnical aspects conducted for the State of Mato Grosso, generated for the entire area of plateaus and depressions of the Upper Paraguai river basin and its internal units of drainage basins. In most cutouts used in the analysis, the values indicated that is void the possibility that the distribution patterns of erosive events were resulted of chance. The aggregate pattern shown may tend to attract new points, facilitating the transmission of the sample.s qualities through these, favored by your proximity and by the characteristics of the occurrence area


Frankokratia ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 109-143
Author(s):  
Kostas Papagiannopoulos ◽  
Helene Simoni ◽  
Panagiotis Kontolaimos

Abstract Following the Fourth Crusade, one of the Frankish states that were established in former Byzantine territories was the Principality of Morea, in the Peloponnese. A strict hierarchy consisting of the prince, the barons, and the fief-knights quickly implemented a feudal system and imposed it on the locals; towers were erected and settlements were relocated. Fieldwork in the Patras area, in the northwestern Peloponnese, has focused on identifying the implementation of the feudal system on the level of the barony and that of the fief. Data are drawn from surface surveys and from historical records, including Ottoman tax registers. Spatial analysis in GIS is used to examine the role of the towers in the economic and social life of the subordinate settlements and how the exercise of power manifests itself in the landscape.


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