Characterization and Evaluation of Soil Erosion in Shenzhen: Using Environmental Radionuclides

2014 ◽  
Vol 522-524 ◽  
pp. 211-222
Author(s):  
Jun Jie Li ◽  
Ding Qiang Li ◽  
Mu Ning Zhuo
Keyword(s):  
Soil Erosion ◽  
Water Loss ◽  
Water Conservation ◽  
Urban Soil ◽  
Land Development ◽  
Wide Distribution ◽  
Distribution Area ◽  
Soil And Water Loss ◽  
Unique Method ◽  
Soil And Water

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.

Soil and Water Conservation Society and the Construction of Ecological Civilization City

2014 ◽  
Vol 977 ◽  
pp. 290-294 ◽  
Author(s):  
Zhi Qiang Yu ◽  
Qiang Gao ◽  
Wen Feng Ding
Keyword(s):  
Soil Erosion ◽  
Social Construction ◽  
Water Loss ◽  
Water Conservation ◽  
Soil And Water Conservation ◽  
Ecological Civilization ◽  
Soil And Water Loss ◽  
The Social ◽  
The City ◽  
Soil And Water

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.

scholarly journals Research Progress on Soil Erosion and Socioeconomic Correlation

2020 ◽  
Vol 145 ◽  
pp. 02031
Author(s):  
Yan Sun ◽  
Junbo Xiao ◽  
Yiyuan Zhang ◽  
Wenhao Lai ◽  
Min Wei ◽  
...  
Keyword(s):  
Soil Erosion ◽  
Social Development ◽  
Water Loss ◽  
Water Conservation ◽  
Water Environment ◽  
Soil And Water Conservation ◽  
Research Progress ◽  
Soil And Water Loss ◽  
The One ◽  
Soil And Water

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.

scholarly journals Effect of Biochar on Soil and Water Loss on Sloping Farmland in the Black Soil Region of Northeast China during the Spring Thawing Period

2021 ◽  
Vol 13 (3) ◽  
pp. 1460
Author(s):  
Pengfei Yu ◽  
Tianxiao Li ◽  
Qiang Fu ◽  
Dong Liu ◽  
Renjie Hou ◽  
...  
Keyword(s):  
Soil Erosion ◽  
Water Loss ◽  
Water Conservation ◽  
Field Experiments ◽  
Field Capacity ◽  
Application Rate ◽  
Frozen Soil ◽  
Soil And Water Loss ◽  
Sloping Farmland ◽  
Soil And Water

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.

scholarly journals Vulnerability Assessment of Soil and Water Loss in Loess Plateau and Its Impact on Farmers’ Soil and Water Conservation Adaptive Behavior

2018 ◽  
Vol 10 (12) ◽  
pp. 4773 ◽  
Author(s):  
Xiaohui Huang ◽  
Lili Wang ◽  
Qian Lu
Keyword(s):  
Soil Erosion ◽  
Loess Plateau ◽  
Water Loss ◽  
Water Conservation ◽  
Positive Impact ◽  
Soil And Water Conservation ◽  
The Loess Plateau ◽  
Soil And Water Loss ◽  
Conservation Technology ◽  
Soil And Water

Analyzing vulnerability and adaptation to soil and water loss is an important part of the study on the human–environment relationship in the Loess Plateau. It has also provided a new perspective for studying the farmers’ adoption behavior of soil and water conservation technology in the soil erosion area of the Loess Plateau. Based on the Turner vulnerability framework, this paper constructs a household-scale index system of soil and water loss vulnerability in the Loess Plateau and evaluates the soil and water loss vulnerability in the Loess Plateau using the field survey data of the Loess Plateau applied entropy method. Finally, we use the binary logistic model to estimate the impact mechanism of farmers’ soil erosion vulnerability on farmers’ adoption behavior of soil and water conservation technology. The main conclusions are as follows: (1) In the total sample, susceptibility > exposure > adaptability, whereas in the Shaanxi and Gansu subsample, susceptibility > adaptability > exposure. The Ningxia subsample was similar to the total sample. For each index, Ningxia > Gansu > Shaanxi; (2) The exposure and susceptibility of soil and water loss have a positive impact on farmers’ adoption behavior of soil and water conservation technology, and natural capital has a positive impact on farmers’ adoption behavior of soil and water conservation technology. Physical capital has a positive impact on farmers’ adoption behavior of biological measures. Financial capital has a negative impact on farmers’ adoption behavior of biological measures and farming measures. Social capital has a positive impact on farmers’ adoption behavior of engineering measures and biological measures; (3) Overall, the marginal effect of the adoption behavior of farmers’ soil and water conservation techniques, adaptability > susceptibility > exposure. Therefore, it is necessary to strengthen the monitoring of soil and water loss, encourage the government and farmers to respond in time, and reduce the losses caused by soil erosion. Enriching the capital endowment of farmers, breaking through the endowment restriction of farmers’ adoption of soil and water conservation technology.

scholarly journals Research Progress on Soil and Water Loss and Soil and Water Conservation in Karst Areas

2020 ◽  
Vol 145 ◽  
pp. 02030
Author(s):  
Yan Sun ◽  
Yiyuan Zhang ◽  
Sigao Li ◽  
Nan Zhang ◽  
Junming Wang
Keyword(s):  
Soil Erosion ◽  
Water Loss ◽  
Water Conservation ◽  
Clean Energy ◽  
Soil And Water Conservation ◽  
Karst Area ◽  
Research Progress ◽  
Soil And Water Loss ◽  
Karst Areas ◽  
Soil And Water

Based on the research of soil erosion and soil and water conservation in karst areas in China in recent years, the status and progress of soil erosion and soil and water conservation in karst areas in China are discussed. The results show that the soil and water loss in the karst area mainly has two types of soil erosion: surface soil erosion and underground soil erosion. Soil and water loss management in karst areas mainly adopts measures to adjust land use structure, increase vegetation coverage, carry out slope-to-ladder construction, and promote clean energy applications. Different governance models should be adopted for different landform types, different landform parts, different slopes, and different levels of rocky desertification in karst areas.

Soil Erosion Monitoring System of Large Areas Based on Dynamic Priority GPRS Remote Network

2014 ◽  
Vol 602-605 ◽  
pp. 2015-2018
Author(s):  
Jin Bao Shan ◽  
Wei Wei Jiang ◽  
Shi Le Mu
Keyword(s):  
Soil Erosion ◽  
Monitoring System ◽  
Water Loss ◽  
Water Conservation ◽  
Large Area ◽  
Information Distortion ◽  
Dynamic Priority ◽  
Soil And Water Loss ◽  
Wide Range ◽  
Soil And Water

Soil and water loss monitoring is an important part of work for soil and water conservation, the monitoring and assessment of soil and water loss in large area is related to many security field. The remote GPRS network control system is used for large area soil and water loss monitoring in this paper, monitoring system is designed and implemented for soil and water loss based on dynamic priority mountains of GPRS remote network. The hardware and software of the system is realized, in the design of software, the particle swarm optimization algorithms is used to analyze some information distortion, the calculation of the loss is optimized and it is more accurate. Soil and water loss in Nanjing area with a wide range of incentives in the mountain is taken for test, the system can give the mountain soil erosion data monitoring in real-time, the monitoring area is more than 10 square kilometers with signals not break, and the accuracy is better.

scholarly journals Assessment of Soil and Water Conservation Practices in the Loess Hilly Region Using a Coupled Rainfall-Runoff-Erosion Model

2020 ◽  
Vol 12 (3) ◽  
pp. 934 ◽  
Author(s):  
Mengfan Cai ◽  
Chunjiang An ◽  
Christophe Guy ◽  
Chen Lu
Keyword(s):  
Climate Change ◽  
Soil Erosion ◽  
Water Conservation ◽  
Surface Runoff ◽  
Rainfall Erosivity ◽  
Conservation Practices ◽  
Emission Scenarios ◽  
Soil And Water Loss ◽  
Hilly Region ◽  
Soil And Water

Soil and water conservation practices (SWCPs) are widely used to control soil and water loss. Quantifying the effect of SWCPs and climate change on soil and water erosion is important for regional environmental management. In this study, the Soil Conservation Service Curve Number (SCS-CN) and the Modified Universal Soil Loss Equation (MUSLE) were employed to investigate the patterns of surface runoff and soil erosion with different SWCPs in the hilly region on the Loess Plateau of China. The impact of climate change under RCP4.5 and RCP8.5 emission scenarios was considered from 2020 to 2050. Surface runoff grew with the increased rainfall and rainfall erosivity, while soil erosion presented large variations between years due to uneven distribution of rainfall and rainfall erosivity under two scenarios. Different SWCPs significantly reduced surface soil and water loss. Compared with bare slopes, the reduction rates were 15–40% for surface runoff and 35–67% for soil erosion under RCP4.5 and RCP8.5 emission scenarios, respectively. The combination of shrub and horizontal terracing was recommended due to its low water cost for sediment control among seven SWCPs.

scholarly journals Study on Soil and Water Conservation and Governance of Urban Inland Rivers: A Case Study of Nakau River Basin Governance

2020 ◽  
Vol 145 ◽  
pp. 02032
Author(s):  
Yiyuan Zhang ◽  
Dong Li ◽  
Yan Sun ◽  
Ronghua Tang ◽  
Yongxin Nong
Keyword(s):  
River Basin ◽  
Water Loss ◽  
Water Conservation ◽  
Soil Conservation ◽  
Control Measure ◽  
Effective Prevention ◽  
Soil And Water Loss ◽  
Water And Soil Conservation ◽  
Inland Rivers ◽  
Soil And Water

Taking the Nakau River Basin Governance Project as the research area, the problems existing in the Nakau River Basin, the key and difficult points of water and soil conservation management, and the measures and implementation effects of water and soil conservation in urban rivers are discussed. According to the characteristics of soil and water loss in the inland rivers of the city, an effective prevention and control measure system was proposed, which ultimately effectively prevented human-induced soil and water loss during the construction of the project, protected water and soil resources, guaranteed the safe operation of the main project, and maintained and improved the regional ecology surroundings.

Soil Erosion and Preventive Measures in the 3rd Expansion Project of Xiaolongtan Power-Station

2013 ◽  
Vol 779-780 ◽  
pp. 1453-1456
Author(s):  
Hong Yan Wang
Keyword(s):  
Power Plant ◽  
Soil Erosion ◽  
Water Loss ◽  
Construction Projects ◽  
Soil And Water Loss ◽  
Project Construction ◽  
Area Of Influence ◽  
Control Degree ◽  
Loss Control ◽  
Soil And Water

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.

scholarly journals Dangerous degree forecast of soil and water loss on highway slopes in mountainous areas using RUSLE model

2017 ◽  
Author(s):  
Yue Li ◽  
Shi Qi ◽  
Bin Liang ◽  
Junming Ma ◽  
Baihan Cheng ◽  
...  
Keyword(s):  
Soil Erosion ◽  
Water Loss ◽  
Soil Conservation ◽  
Road Safety ◽  
Mountain Area ◽  
Erosion Risk ◽  
Soil And Water Loss ◽  
Loss Prediction ◽  
One Year ◽  
Soil And Water

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.

Sign in / Sign up

Export Citation Format

Share Document