地理信息系统(英文)最新文献_第10页

Studies on Land Resource Inventory for Agricultural Land Use Planning in Northern Transition Zone of India through Remote Sensing and GIS Techniques 基于遥感和GIS技术的印度北部过渡区农业用地规划土地资源清查研究

地理信息系统(英文) Pub Date : 2021-01-01 DOI: 10.4236/jgis.2021.136039

D. Amara, S. Nadaf, D. Saidu, O. S. Vonu, Raymond Morie Musa, P. Kamanda, P. A. Sawyerr, J. Mboma, S. D. Mansaray, Mohammed Azim Sannoh

{"title":"Studies on Land Resource Inventory for Agricultural Land Use Planning in Northern Transition Zone of India through Remote Sensing and GIS Techniques","authors":"D. Amara, S. Nadaf, D. Saidu, O. S. Vonu, Raymond Morie Musa, P. Kamanda, P. A. Sawyerr, J. Mboma, S. D. Mansaray, Mohammed Azim Sannoh","doi":"10.4236/jgis.2021.136039","DOIUrl":"https://doi.org/10.4236/jgis.2021.136039","url":null,"abstract":"Land suitability analysis is a prerequisite to achieving optimum utilization of available land resources. Hence, a study on land resource inventory for agricultural land use planning was conducted in the Northern Transition Zone of India to determine land capability and develop a suitability map for wheat and sorghum-based on physical and climatic factors of production using remote sensing and GIS techniques. Detailed soil survey information was used for this exercise. Four series (Singhanhalli, Mugli, Bogur and Venkatapur series) were identified and mapped into seventeen mapping units. Land capability classification showed that a greater portion of the study suitable. About 234 ha (31.6%) is moderately suitable, 494 ha (65.0%) marginally suitable and 10.2 ha (1.3%) permanently not suitable for wheat; while 78.5 ha (10.3%) is moderately suitable, 633.4 ha (82.3%) marginally suitable and 32.6 ha (4.3%) permanently not suitable for sorghum respectively. The moderate, marginal and permanent non-suitability was due to moderate, severe and very severe limitations respectively. However, it is possible to achieve potential yield of the crops in the study area if these limitations are addressed.","PeriodicalId":68865,"journal":{"name":"地理信息系统(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70326562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Drilling in the Water by “Creating a Safe and Free Passage for the Movement of People and Equipment between the Surface and the Bottom”, Using Several Methods for Extracting Natural Resources and Scientific Research 通过“在水面和底部之间为人员和设备的运动创造安全自由的通道”在水中钻探，使用几种开采自然资源和科学研究的方法

地理信息系统(英文) Pub Date : 2021-01-01 DOI: 10.4236/JGIS.2021.132012

Walid Nabil

{"title":"Drilling in the Water by “Creating a Safe and Free Passage for the Movement of People and Equipment between the Surface and the Bottom”, Using Several Methods for Extracting Natural Resources and Scientific Research","authors":"Walid Nabil","doi":"10.4236/JGIS.2021.132012","DOIUrl":"https://doi.org/10.4236/JGIS.2021.132012","url":null,"abstract":"The research develops a new plan that follows a precise system for drilling at the bottom of the water, by creating a “digging corridor” that allows people to move from the top of the surface of rivers or seas and oceans to the bottom, allowing all the huge mechanical equipment to be lowered to continue drilling at the bottom vertically, until reaching rocky soil; in order to change the drilling paths and “develop the attack”, and establish long corridors to obtain the dysfunctional economic wealth, the project can be used in scientific research and the establishment of cities in the future below the seabed. There are different characteristics of drilling in fresh and salt water, due to the difference in water quality, current speed and nature soil analysis, erosion pow-er, and erosion. The research was divided between easy ways to reach simple depths (10 - 20 meters), using various cheap means, and strategies for establishing “drilling corridors” at medium (more than 20 - less than 100 meters) and large depths (from 100 meters - less than 1 kilometer), which depends on the construction of a concrete building with a large base, which enables it to successfully perform its role, and at great depths (more than 1 kilometer) require adding more supports to the building, and emergency plans have been taken care of. It is important to establish strong electronic doors to protect tunnel passages, such as: closing them at the time of danger, preparing sectors for evacuation, and the possibility of selling the “digging corridor” and tunnels, or gifting them to scientists, or moving them and closing or blowing up the underpasses. In conclusion, this research will contribute to “opening a new environment”,","PeriodicalId":68865,"journal":{"name":"地理信息系统(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70326734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mapping Rural Mobility in the Niakhar Area (Fatick Region, Senegal) 绘制Niakhar地区(塞内加尔法蒂克地区)农村人口流动地图

地理信息系统(英文) Pub Date : 2021-01-01 DOI: 10.4236/JGIS.2021.131005

Alphousseyni Ndonky, M. Ndour, I. Ndiaye, R. Lalou, Cheikh A. Tine

{"title":"Mapping Rural Mobility in the Niakhar Area (Fatick Region, Senegal)","authors":"Alphousseyni Ndonky, M. Ndour, I. Ndiaye, R. Lalou, Cheikh A. Tine","doi":"10.4236/JGIS.2021.131005","DOIUrl":"https://doi.org/10.4236/JGIS.2021.131005","url":null,"abstract":"Despite the development of information and communication technologies, mobility still remains an important factor in the development of the social capital, by promoting social interactions. However, rural African populations face more difficulties getting around than city dwellers. In addition, studies on mobility in Africa are relatively weak. In rural African areas, this ignorance of mobility is even more important. It is necessary to identify the characteristics and the spatial structure of mobility flows before starting any reflection on solutions, particularly in terms of spatial allocation of transport resources. Our main objective is to map the current movement flows in the Niakhar area. We chose to use the cartographic approach to analyze mobility flows. The data come from a survey carried out in 2018, as part of the French Institute of Research for Development (IRD) Niakhar Atlas project. For the data analysis, we used 4 methods: dominant flux method, net flux calculation method, directional mean statistics and areal interpolation. The results revealed differences in mobility behavior depending on the season and in space, and the existence of three dominant centers: Ngayokheme, Diohine and Toucar. They also made it possible to highlight the main directions of the flows and the scalar fields of mobility.","PeriodicalId":68865,"journal":{"name":"地理信息系统(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70326719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Flooding of Lake Nakuru National Park and Its Effects on the Resident Wildlife 纳库鲁湖国家公园的洪水及其对当地野生动物的影响

地理信息系统(英文) Pub Date : 2021-01-01 DOI: 10.4236/jgis.2021.136036

Peter O. Hongo, Galcano C. Mulaku

{"title":"Flooding of Lake Nakuru National Park and Its Effects on the Resident Wildlife","authors":"Peter O. Hongo, Galcano C. Mulaku","doi":"10.4236/jgis.2021.136036","DOIUrl":"https://doi.org/10.4236/jgis.2021.136036","url":null,"abstract":"Lake Nakuru is one of Kenya’s Rift Valley Lakes and lies within the Lake Nakuru National Park. As a key habitat for flamingos and other water birds, the lake is a major tourist attraction. Lake Nakuru National Park covers an area of approximately 188 km 2 and is fully enclosed with a perimeter fence. The park is home to about 56 different species of mammals, 550 plant species, and 450 species of terrestrial birds as well as flamingos and other water birds. In the last decade, the lake has experienced continuous flooding, increasing the lake area from 35 km 2 in 2009 to 54 km 2 in 2018. This impacted negatively on the available space for wildlife. The main objective of this study was to investigate the effects of this flooding on the wildlife and their habitats in Lake Nakuru National Park. The methodology used Land use Land cover (LULC) interpretation of Landsat Satellite imagery from two epochs, 2009 and 2018, and integration of the results with relevant wildlife data provided by Kenya Wildlife Service. The results, which include LULC change maps and wildlife distribution maps, have shown that the flooding impacted negatively on the available space for wildlife. In addition, the floods also compromised key park infrastructures such as roads and the main gate making it very difficult to maintain the normal park operations, and hence adversely affecting the local and national economies. The information provided by this study is useful for planning mitigation measures in respect of the current and potential future flooding.","PeriodicalId":68865,"journal":{"name":"地理信息系统(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70326508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geoprocessing Applied in the Estimate of Infiltration and Surface Runoff in HPP’s Contribution Watershed 地理处理在HPP贡献流域入渗和地表径流估算中的应用

地理信息系统(英文) Pub Date : 2021-01-01 DOI: 10.4236/jgis.2021.136035

E. D. Nunes, P. Romão, M. Sales, M. P. Luz

{"title":"Geoprocessing Applied in the Estimate of Infiltration and Surface Runoff in HPP’s Contribution Watershed","authors":"E. D. Nunes, P. Romão, M. Sales, M. P. Luz","doi":"10.4236/jgis.2021.136035","DOIUrl":"https://doi.org/10.4236/jgis.2021.136035","url":null,"abstract":"The knowledge of the hydrological regime contributes to the prediction of periods of higher or lower water supply as a function of the frequency and volume of rainfall in relation to the pedological, land cover, and land use conditions. This work aims at evaluating the spatio-temporal variability of the infiltration and runoff potential of an area formed by 4 sub-basins tributary to the São Marcos River in Cristalina (GO). The SCS/NRCS-USDA (2004) method was used, using geoprocessing resources, considering soils in dry, semi-humid and humid conditions. The estimates indicate that rainfall with an average of 6.83 mm, in the September-October transition, in the face of soils in the dry condition does not provide surface runoff. Thus, the variability of pedological characteristics associated with the various conditions of coverage and land use indicates that even the areas with lower infiltration potential begin to contribute effectively with their respective channels in the transition from October to November, when rainfall events are more frequent and significant, and the soils are already in conditions of greater humidity.","PeriodicalId":68865,"journal":{"name":"地理信息系统(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70326962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Analysis of Transit Network Design Using GIS and Honeybee Algorithm in the City of Sanandaj, Iran 基于GIS和蜜蜂算法的伊朗萨南达杰市公交网络设计分析

地理信息系统(英文) Pub Date : 2020-11-19 DOI: 10.4236/jgis.2020.126041

A. Ahmadi

引用次数: 0

Dividing the Expropriated Areas Based on Multi-Factor Comprehensive Evaluation—A Case Study of Gongcheng Yao Autonomous County 基于多因素综合评价的征地划分——以恭城瑶族自治县为例

地理信息系统(英文) Pub Date : 2020-11-19 DOI: 10.4236/jgis.2020.126034

Yuening Song, Xiangwen Cai, Mi Tang, Mingyuan Liu, Yan Zhao, Zehao Liu

{"title":"Dividing the Expropriated Areas Based on Multi-Factor Comprehensive Evaluation—A Case Study of Gongcheng Yao Autonomous County","authors":"Yuening Song, Xiangwen Cai, Mi Tang, Mingyuan Liu, Yan Zhao, Zehao Liu","doi":"10.4236/jgis.2020.126034","DOIUrl":"https://doi.org/10.4236/jgis.2020.126034","url":null,"abstract":"In recent years, with the rapid development of urbanization in China, land acquisition work is particularly important. The division of expropriated area is the primary factor to be considered when evaluating the comprehensive land price of expropriated area. Reasonable division can help to improve the scientific and applicability of the comprehensive land price of the region. How to maximize the protection of farmers’ rights and interests by the division of land requisition is an urgent problem to be solved. Taking Gongcheng Yao Autonomous County as an example, this study adopted the multi-factor comprehensive evaluation method to evaluate the division of land requisition in this area, and carried out the corresponding spatial analysis and data processing based on GIS technology. Gongcheng Yao Autonomous County was divided into levy areas, and the Delphi method was used to screen the impact factors and determine the weight of the levy areas. Reasonable division of land requisition area can provide references for land requisition area, make it more scientific and reasonable, and protect the rights and interests of farmers.","PeriodicalId":68865,"journal":{"name":"地理信息系统(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45173282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Multidisciplinary Approach for a Solution to Floods in Sampathé District (Thiès-Est, Senegal) 多学科方法解决sampath<s:1>地区(thi<s:1> - est，塞内加尔)洪水问题

地理信息系统(英文) Pub Date : 2020-11-19 DOI: 10.4236/jgis.2020.126038

M. Ndour, A. Thiam, B. Fall, Ibrahima Seye

{"title":"Multidisciplinary Approach for a Solution to Floods in Sampathé District (Thiès-Est, Senegal)","authors":"M. Ndour, A. Thiam, B. Fall, Ibrahima Seye","doi":"10.4236/jgis.2020.126038","DOIUrl":"https://doi.org/10.4236/jgis.2020.126038","url":null,"abstract":"In recent years (2003), Senegal has been confronted with many urban flooding problems that have become recurrent due to the configuration of its settlement. This is due to galloping population growth, climate change and a lack of planning and rainwater drainage networks. To fix these phenomena, Senegalese government has initiated rainwater drainage programs. In the city of Thies, particularly in Sampathe district, flooding problem is a reality that is observed during every winter period. It is within this framework that we have proposed a project for the design and dimensioning of a rainwater evacuation network in Sampathe. The network will be integrated into a Geographic Information System for efficient management of project. This study involved identifying flood zones, determining geotechnical characteristics of the soil, and exploiting rainfall data in order to propose a storm water drainage network that will be integrated into a database management system. Thus, we carried out topographical and geotechnical studies, then designed and dimensioned the drainage network, and finally set up a geographic information system. At the end of this project, we designed a sewerage network consisting of two primary pipelines, four secondary pipelines, one tertiary pipeline, ninety-two manholes and a retention basin. To manage the network, we set up a geographic information system to geolocate various elements for rapid intervention in the field in event of a problem, make requests, generate thematic maps, and perform spatial analyses for good decision-making.","PeriodicalId":68865,"journal":{"name":"地理信息系统(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44770965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling the Spatial Distribution of Soil Heavy Metals Using Random Forest Model—A Case Study of Nairobi and Thirirka Rivers’ Confluence 基于随机森林模型的土壤重金属空间分布模拟——以内罗毕河与蒂里卡河汇流为例

地理信息系统(英文) Pub Date : 2020-11-19 DOI: 10.4236/jgis.2020.126035

E. Omondi, M. Boitt

{"title":"Modeling the Spatial Distribution of Soil Heavy Metals Using Random Forest Model—A Case Study of Nairobi and Thirirka Rivers’ Confluence","authors":"E. Omondi, M. Boitt","doi":"10.4236/jgis.2020.126035","DOIUrl":"https://doi.org/10.4236/jgis.2020.126035","url":null,"abstract":"Modeling the spatial distribution of soil heavy metals is important in determining the safety of contaminated soils for agricultural use. This study utilized 60 topsoil samples (0 - 30 cm), multispectral images (Sentinel-2), spectral indices, and ancillary data to model the spatial distribution of heavy metals in the soils along the Nairobi River. The model was generated using the Random Forest package in R. Using R2 to assess the prediction accuracy, the Random Forest model generated satisfactory results for all the elements. It also ranked the variables in order of their importance in the overall prediction. Spectral indices were the most important variables within the rankings. From the predicted topsoil maps, there were high concentrations of Cadmium on the easterly end of the river. Cadmium is an impurity in detergents, and this section is in close proximity to the Nairobi water sewerage plant, which could be a direct source of Cadmium. Some farms had Zinc levels which were above the World Health Organization recommended limit. The Random Forest model performed satisfactorily. However, the predictions can be improved further if the spatial resolutions of the various variables are increased and through the addition of more predictor variables.","PeriodicalId":68865,"journal":{"name":"地理信息系统(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42196259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Suitable Land Assessment for Rice Crop in Burkina Faso Using GIS, Remote Sensing and Multi Criteria Analysis 基于GIS、遥感和多准则分析的布基纳法索水稻适宜种植土地评价

地理信息系统(英文) Pub Date : 2020-11-19 DOI: 10.4236/jgis.2020.126039

Gnibga Issoufou Yangouliba, D. Kwawuvi, A. Almoradie

{"title":"Suitable Land Assessment for Rice Crop in Burkina Faso Using GIS, Remote Sensing and Multi Criteria Analysis","authors":"Gnibga Issoufou Yangouliba, D. Kwawuvi, A. Almoradie","doi":"10.4236/jgis.2020.126039","DOIUrl":"https://doi.org/10.4236/jgis.2020.126039","url":null,"abstract":"In Burkina Faso, rice consumption is currently common and increasing in both, rural and urban areas. Although several efforts have been made by the state to develop land for rice cultivation, the population’s demand is still greater than the supply. Nevertheless, the country has great potential for rice cultivation. This study aims to analyze the suitability of land for rice cropping in the province of Nahouri. Field and satellite data were collected to map the rice crops developed areas. Furthermore, morphopedological, topographic, land use/cover, and accessibility to land data were collected and integrated into a Geographic Information System (GIS) based on simple Multi-Criteria Analysis (MCA). Land suitability for rice crop was performed. The results show that the total suitable area for rice cultivation in the province is 106,373 ha (28% of the province) where the most suitable areas cover 32,614 ha and the suitable areas cover 73,759 ha. Already 3144 ha of the province area had been developed for rice cultivation with 815 ha and 845 ha of most suitable and suitable areas respectively whereas more than 45% of the developed lands were not fit for the rice crop suitable land.","PeriodicalId":68865,"journal":{"name":"地理信息系统(英文)","volume":"12 1","pages":"683-696"},"PeriodicalIF":0.0,"publicationDate":"2020-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46829793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4