scholarly journals Ecological Risk Assessment of Shan Xin Mining Area Based on Remote Sensing and Geography Information System Technology

2018 ◽  
Vol 10 (02) ◽  
pp. 234-246 ◽  
Author(s):  
Chaokui Li ◽  
Jianhui Chen ◽  
Mengguang Liao ◽  
Guo Chen ◽  
Qinlan Zhou
Keyword(s):  
Remote Sensing ◽  
Risk Assessment ◽  
Information System ◽  
Ecological Risk ◽  
Ecological Risk Assessment ◽  
Mining Area ◽  
System Technology ◽  
Geography Information System ◽  
Information System Technology ◽  
Geography Information

Enterprise Coordination Transport Analysis

2014 ◽  
Vol 505-506 ◽  
pp. 395-398
Author(s):  
Yue Xia Yan ◽  
Jun Qi Wang
Keyword(s):  
Information System ◽  
Shortest Path ◽  
Transportation System ◽  
System Technology ◽  
Geography Information System ◽  
Model Based ◽  
Transport Analysis ◽  
Information System Technology ◽  
Geography Information ◽  
Set Up

It starts at co-operation problem between different transportation enterprises, and sets up the Coordination Transportation concept with its management and administration model based on geography information system technology. Then it analyses and points out that its solution to shortest path may have the aid of intellect algorithm. Finally it studies and analyses the measurements during Coordination Transportation between deferent transportation enterprises. Coordination Transportation will help improve the style of transportation, and it will also help set up comprehensive transportation system in China.

scholarly journals Analisis Garis Pantai Ladong Aceh Besar Tahun 2011-2015 dengan Menggunakan Sistem Informasi Geografis

2017 ◽  
Vol 3 (1) ◽  
pp. 84
Author(s):  
Chasandra Faradila ◽  
Ichsan Setiawan ◽  
Edy Miswar
Keyword(s):  
Remote Sensing ◽  
Information System ◽  
River Estuary ◽  
Shoreline Change ◽  
Google Earth ◽  
Aerial Photo ◽  
System Technology ◽  
Geographic Information System Technology ◽  
Aceh Province ◽  
Information System Technology

The purpose of this study was to determine shoreline change along the coast of Ladong, Mesjid Raya subdistrict, Aceh Besar district, Aceh province in the 5 years period started from the year 2011, 2012, 2013, 2014 and 2015. Ground check was implemented in August 2016. This study utilized Geographic Information System technology (GIS), remote sensing and by utilizing Google Earth to capture aerial photo. The result from this research showed that each year the shoreline changes, either it was abrasion or accretion. In 2011-2012 the value of abrasion reached 1.1 ha and the value of accretion reached 0.5 ha. In 2012-2013 the value of abrasion reached 0.3 ha and the value of accretion reached 0.8 ha. In 2013-2014 the value of abrasion reached 1.2 ha and the value of accretion reached 0.2 ha. In 2014-2015 the value of abrasion reached 0.2 ha and the value of accretion reached 1.5 ha. The value of the annual abrasion average reached 0.56 ha and the value of the accretion was 0.58 ha. The largest abrasion happened in 2013-2014 which reached 1.2 ha. The total value of 5 year abrasion was 2.8 ha and the total value of accretion was recorded 2.9 ha. The process of abrasion and accretion also caused a change of the length of Ladong’s coastline every year, and the river estuary was one of the reasons that caused abrasion or accretion

scholarly journals Source Apportionment and Ecological Risk Assessment of Potentially Toxic Elements in Cultivated Soils of Xiangzhou, China: A Combined Approach of Geographic Information System and Random Forest

2021 ◽  
Vol 13 (3) ◽  
pp. 1214
Author(s):  
He Huang ◽  
Yong Zhou ◽  
Yu-Jie Liu ◽  
Liang Xiao ◽  
Ke Li ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Information System ◽  
Geographic Information System ◽  
Random Forest ◽  
Ecological Risk ◽  
Ecological Risk Assessment ◽  
Toxic Elements ◽  
Geographic Information ◽  
Potentially Toxic Elements ◽  
Anthropogenic Sources

Soil is both an important sink and a source for contaminants in the agricultural ecosystem. To research the sources and ecological risk of potentially toxic elements in Xiangzhou, China, 326 soil samples from arable land were collected and analyzed for five potentially toxic elements: cadmium (Cd), mercury (Hg), arsenic (As), lead (Pb), and chromium (Cr). In this research, ecological risk assessment was used to determine the degree of contamination in the research area, the outcome of the Geographic Information System was as used to study the spatial distribution characteristics of potentially toxic elements, and random forest was used to evaluate the natural and artificial influencing factors. We surveyed the sources of potentially toxic elements through quantifying the indicators, which gave further opinions. The results were as follows: (1) The average contents of potentially toxic elements were 0.14 mg/kg (Cd), 0.05 mg/kg (Hg), 12.33 mg/kg (As), 28.39 mg/kg (Pb), and 75.21 mg/kg (Cr), respectively. The results compared with the background value of Hubei, neighboring regions, and countries for Cd, As, Pb, and Cr showed mild pollution. (2) The total evaluation of soil pollution via the comprehensive pollution index indicated slight contamination by Cd. Assessment by the potential ecological risk index indicated low ecological risk due to Cd and moderate contamination by Hg. Evaluation through the geo-accumulation index evinced the low ecological risk for Cd, As, and Pb and moderate contamination by Hg. (3) We found that in addition to natural factors (such as soil parent material, soil pH, etc.), long-term industrial pollution, mineral mining and processing, exhaust emissions from transportation, the application of manure from farms as farmyard manure, and sewage irrigation were the primary anthropogenic sources of potentially toxic element contamination in the soil.

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