Application of Remote Sensing in the Research of Soil Erosion

2013 ◽  
Vol 807-809 ◽  
pp. 1658-1661
Author(s):  
Yang Yang ◽  
Shu Cheng Tan

Since remote sensing technology introduced into China, has made considerable progress in the dynamic monitoring of soil and water loss research. Through the application of remote sensing technology in soil erosion monitoring in our country and other countries, analyze the existing problems in the remote sensing technology application, then make prospects for the application and development.

2014 ◽  
Vol 977 ◽  
pp. 290-294 ◽  
Author(s):  
Zhi Qiang Yu ◽  
Qiang Gao ◽  
Wen Feng Ding

In recent years , with the acceleration of the process of China's modernization cities , soil erosion and lead to many more serious environmental problems . This paper describes the harm to the social construction of ecological civilization city soil and water loss,analyzed the causes of soil erosion,and finally illustrates the importance of soil and water conservation of the city and puts forward some suggestions for the construction of soil and water conservation.


2014 ◽  
Vol 522-524 ◽  
pp. 211-222
Author(s):  
Jun Jie Li ◽  
Ding Qiang Li ◽  
Mu Ning Zhuo

Nuclear tracer technology is quantitative and it has a high priority, which provides a unique method for understanding the mechanism of urban soil and water loss.137Cs +210Pbexcombination tracer was applied to study the characterization and evaluation of soil Erosion in Shenzhen. The results indicate that the following: 1)Disturbances from urbanization has greatly changed surface soil in Shenzhen.137Cs background inventory in Shenzhen range at 99 Bq/m2-653 Bq/m2. 2)210Pbexbackground inventory increase with altitude rise, which is attributed to the movement of water vapor. 3)Soil erosion in Shenzhen has a wide distribution area and exacerbated by severe human disturbance. Land development and steep orchard are key factors that influence urban soil and water loss. 4)Shenzhen should strictly carry out projects for soil and water conservation, such as returning steep slopes into forests and grasslands, and other ecological management reforms.


1987 ◽  
Vol 67 (3) ◽  
pp. 433-444 ◽  
Author(s):  
JOSEF CIHLAR

A methodology is described for mapping and monitoring the erosion of soil by water, using remote sensing techniques and the universal soil loss equation as the primary tools. Four aspects are covered: mapping baseline sheet and rill erosion, monitoring actual rill and gully erosion, estimating changes in potential sheet and rill erosion, and determining long-term trends. A successful field evaluation of the methodology was undertaken in a potato-growing area of New Brunswick. The implementation of the procedure using state-of-the-art microcomputer and satellite remote sensing technology is proposed. Key words: Soil erosion, remote sensing, geographic information systems


2013 ◽  
Vol 779-780 ◽  
pp. 1453-1456
Author(s):  
Hong Yan Wang

Based on the regional topography, engineering geology, hydrology, vegetation, soil, and soil erosion survey of Xiaolongtan power plant, this paper will analyze the area of influence according to the soil and water loss and its effects in this project, and according to the characteristics of construction projects and the local natural conditions, combined with the characteristics of soil and water loss control degree of each region and the affected, The biological measures with engineering measures together, take slag retaining engineering, drainage engineering, land consolidation engineering and plant measures for the comprehensive management.So the effect of soil erosion will be reduced to minimum level, the area of new erosion will be effectively controlled. And this will provide guarantees for the security run of the power plant, protect and improve environment quality in and around the project construction area.


2014 ◽  
Vol 955-959 ◽  
pp. 3735-3739
Author(s):  
Yin Tai Na

Inner Mongolia is one of the most typical and severe dry provinces, drought is it’s main meteorological disasters. Remote sensing monitoring becomes irreplaceable effective means in the regional drought monitoring and drought mechanism research with the advantages of macro, rapid, objective, dynamic and real time. Inner Mongolia region is vast and flat, so suitable for carrying out the regional drought monitoring research with remote sensing technology. Application of meteorological drought indices and historical documents for drought monitoring and study is relatively more. However application of remote sensing technology for drought monitoring in Inner Mongolia is at the beginning stage of development. Further study and exploration is urgently needed. In this paper research work of application of remote sensing approach in drought monitoring in Inner Mongolia is summarized and existing problems are pointed out. Finally give some suggestions for the application of remote sensing technology in the drought monitoring in Inner Mongolia.


2020 ◽  
Vol 145 ◽  
pp. 02031
Author(s):  
Yan Sun ◽  
Junbo Xiao ◽  
Yiyuan Zhang ◽  
Wenhao Lai ◽  
Min Wei ◽  
...  

Soil erosion and socio-economic interacts with each other. Soil and water loss destroys land resources, causes non-point source pollution, affects the recycling and utilization of water resources, worsens the water environment, and even causes natural disasters such as collapse, landslides, and debris flows. Soil erosion affects regional socio-economic development. On the one hand, economic and social development has caused a sharp increase in people’s demand for the development and utilization of natural resources, which has increased the occurrence of soil and water loss; on the other hand, economic and social development has promoted people’s understanding of soil erosion and soil and water conservation, enabling people to consciously change their production and lifestyle, and having sufficient funds to invest in soil and water conservation and reduce soil erosion.


2021 ◽  
Vol 13 (3) ◽  
pp. 1460
Author(s):  
Pengfei Yu ◽  
Tianxiao Li ◽  
Qiang Fu ◽  
Dong Liu ◽  
Renjie Hou ◽  
...  

Biochar, as a kind of soil amendment, has attracted wide attention from scholars in various countries, and the effects of biochar on soil and water loss have been well reported. However, soil erosion is significantly affected by geographical conditions, climate, and other factors, and research on the characteristics of soil erosion and the effects of biochar application in seasonally frozen soil areas is currently unclear. The purpose of this study was to explore the effect of corn straw biochar application on soil and water conservation during the spring thawing period. Specifically, through field experiments, the addition of 0, 6, and 12 kg m−2 biochar on slopes of 1.8, 3.6, 5.4, and 7.2° and the effects on runoff and the soil erosion rate of farmland were analyzed. The results showed that in the 6 and 12 kg m−2 biochar addition treatments, the saturated water content of the soil increased by 24.17 and 42.91%, and the field capacity increased by 32.44 and 51.30%, respectively. Compared with the untreated slope, with an increase in biochar application rate, runoff decreased slightly, and soil erosion decreased significantly. This study reveals that biochar can be used as a potential measure to prevent soil and water loss on sloping farmland in cold regions.


2017 ◽  
Author(s):  
Yue Li ◽  
Shi Qi ◽  
Bin Liang ◽  
Junming Ma ◽  
Baihan Cheng ◽  
...  

Abstract. Many high and steep slopes have been formed by special topographic and geomorphic types and mining activities during the construction of mountain expressways. Severe soil erosion may occur under heavy rainfall conditions and pose a serious threat to road safety and the lives of residents. Therefore, the prediction of soil and water loss on highway slopes is important for the protection of infrastructure and human life. This work studies Xinhe Expressway, which is in the southern edge of Yunnan Guizhou Plateau, as the research area. The revised universal soil loss equation is selected as the prediction model of soil and water loss on slopes. Moreover, geographic information system, remote sensing technology, field survey, runoff plot observation test, cluster analysis, and cokriging are adopted. The partition of the prediction units of soil and water loss on the expressway slope in the mountain area and the spatial distribution model of the linear highway rainfall are studied. In view of the particularity of the expressway slope in the mountain area, the model parameter factor is modified and the risk of soil and water loss along the mountain expressway is simulated and predicted under 20-year and one-year rainfall return periods. The results are as follows. (1) Considering natural watershed as the prediction unit of slope soil erosion can represent the actual situation of soil and water loss of each slope. The spatial location of soil erosion unit is realized, the accuracy of soil and water loss prediction results is improved, and the convenience of data management and maintenance in the later stage is guaranteed. (2) Analysis of the actual observation data show that the overall average absolute error of the monitoring area is 33.24 t · km−2, the overall average relative error is 33.96 %, and the overall root mean square error is between 20.95 and 65.64, all of which are within acceptable limits. The Nash efficiency coefficient is 0.67, thereby showing that the prediction accuracy of the model satisfies the requirements. (3) Under the condition of one-year rainfall, we find through risk classification that the percentage of prediction units with no risk of erosion is 78 % and that with mild soil erosion risk is 15.92 %. Results show that soil erosion risk is low and thereby does not affect road traffic safety. Under the 20-year rainfall condition, the percentage of units with high and extremely high risk is 7.11 %. In these areas, the risk of soil erosion is relatively large and mainly distributed on K109 + 500 − K110 + 500 and K133 − K139 + 800 sections. Even if only part of the sediment is deposited on the road, road safety will be affected. The prediction results can help adjust the layout of water and soil conservation measures in these units. This study provides not only a scientific basis for soil erosion prevention and control in mountain expressways but also a reference for the application of water and soil loss prediction and soil conservation planning.


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