A Study on the Status, Problems and Its Countermeasures of Soil Erosion in Hubei Province, China

2009 ◽  
Author(s):  
Wei Liao ◽  
Tie-Ping Yan ◽  
Yi-Jin Wu ◽  
Ndakeva Helena ◽  
Xu-Ying Yuan
Keyword(s):  
Soil Erosion ◽  
Hubei Province ◽  
The Status

scholarly journals An assessment of soil loss and natural hazards in Nepal

2000 ◽  
Vol 21 ◽  
Author(s):  
Dinesh R. Shiwakoti
Keyword(s):  
Soil Erosion ◽  
Debris Flow ◽  
Soil Loss ◽  
Surface Soil ◽  
Mass Movements ◽  
Critical Factors ◽  
Outburst Flood ◽  
Paper Briefly ◽  
Grass Roots ◽  
The Status

This paper briefly reviews the status of soil erosion in Nepal, and examines the major causes and factors leading to soil erosion and mass movements. There are the following four major mechanisms associated with soil loss: a) surface soil erosion, b) landslide and debris flow, c) earthquake, and d) glacier lake outburst flood. Effective methods for investigating, analysing, identifying, and implementing the critical factors for protecting accelerated soil loss in a planned manner are essential from the grass roots to national and international levels.

scholarly journals Recent advances in the assessment of soil erosion vulnerability in watersheds

2021 ◽  
pp. 9-32
Author(s):  
Shachi Pandey ◽  
Parmanand Kumar ◽  
Miodrag Zlatic ◽  
Raman Nautiyal ◽  
Vijender Panwar
Keyword(s):  
Soil Erosion ◽  
Soil Loss ◽  
Quantitative Estimation ◽  
Qualitative Assessment ◽  
The World ◽  
The Status ◽  
Approaches To Study ◽  
Mcdm Method ◽  
Gis Interface ◽  
Soil Loss Equation

Water induced soil erosion has always been a matter of concern in watersheds as they increase the soil vulnerability towards erosion. If unchecked, the eroded material reduces the capability of the river to carry the adequate amount of water and increase the amount of sediments in the watershed area. Determining vulnerability of soil to erosion plays a key role in identifying the extent of fragility and helps in making appropriate plans for conservation. Among various methods present to assess soil erosion vulnerability, there is a need to understand the frequently used methods so far and its advancement with time. Various models have been used in past two decades (1991-2019) and the Revised Universal Soil Loss Equation (RUSLE) is the most used model because of its quantitative ability to estimate the average annual soil loss due to erosion in a watershed and its compatibility with the GIS interface. Different approaches like MCDM, SWAT etc. are being utilised to study soil erosion vulnerability of watersheds. This review showed that the frequently used MCDM method is a Compound Factor (CF) method and that RUSLE is a most used quantitative approach. The review identifies 14 different methods which includes 4 methods which provide quantitative estimation while the other 10 methods are used for qualitative assessment of soil erosion vulnerability. Being the most adopted approach, various modifications of different factors of RUSLE introduced by researchers have made it more efficient with time. This review identifies the trend in advancement of various approaches and methods to study soil erosion vulnerability of watersheds around the world and also how various studies are distributed in the Himalayan and non-Himalayan region. The review also provides an understanding of the status of various current approaches to study soil erosion in a watershed and lists the improvements adopted in the frequently used approaches during 1991 and 2019.

scholarly journals Economic Implications of Soil Erosion: A methodological framework.

2020 ◽  
Author(s):  
Josily Samuel ◽  
C A Rama Rao ◽  
B M K Raju ◽  
K V Rao ◽  
R Rejani ◽  
...  
Keyword(s):  
Soil Erosion ◽  
Crop Production ◽  
Farming Systems ◽  
Economic Effects ◽  
Farm Income ◽  
Economic Implications ◽  
Farm Level ◽  
Trade Offs ◽  
The Status ◽  
Frame Work

Abstract Soil erosion has adverse economic and environmental impacts. The economic effects are due to loss of farm income with adverse impact on crop production. There is a need to understand the trade-offs between farm income and soil loss faced by the farmers in making decisions at farm level. There are different methodologies that integrate into a bio-economic model wherein the multi objective linear programming models have focus on the economic aspects and biophysical components. In this study, we tried to examine the status of soil erosion and formulated a methodological frame work for optimising the farm level objectives and their trade-offs for sustainable farming systems.

scholarly journals The Link between Landscape Characteristics and Soil Losses Rates over a Range of Spatiotemporal Scales: Hubei Province, China

2021 ◽  
Vol 18 (21) ◽  
pp. 11044
Author(s):  
Qing Li ◽  
Yong Zhou ◽  
Li Wang ◽  
Qian Zuo ◽  
Siqi Yi ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Soil Erosion ◽  
Landscape Pattern ◽  
Water Conservation ◽  
Hubei Province ◽  
Soil And Water Conservation ◽  
Hotspot Analysis ◽  
Landscape Characteristics ◽  
The Town ◽  
Soil And Water

Controlling soil erosion is beneficial to the conservation of soil resources and ecological restoration. Understanding the spatial distribution characteristics of soil erosion helps find the key areas for soil control projects and optimal scale for investing in a soil and water conservation project at the lowest cost. This study aims to answer the question of how the spatial distribution of soil erosion in Hubei Province changed between 2000 and 2020. Moreover, how do the effects of natural factors and human activities on soil erosion vary over the years? What are the differences in landscape pattern characteristics and the spatial cluster of soil erosion at multiple administrative scales? We simulated the spatial distribution of soil erosion in Hubei province from 2000 to 2020 by the Chinese Soil Loss Equation model at three administrative scales. We investigated the relationship between soil erosion and driving factors by Geodector. We explored the landscape pattern and hotspots of land at different levels of soil erosion by Fragstat and hotspot analysis. The results show that: (1) The average soil erosion rate decreased from 2000 to 2020. Soil erosion is severe in the mountainous areas of western Hubei province, while it is less severe in the central plains. (2) Land-cover type, precipitation, and normalized difference vegetation index are the most influencing factors of soil erosion in 2000–2010, 2015, and 2020, respectively. (3) The aggregation index values at the town scale are higher than those at the city and county scales, while the fractal dimension index values at the town scale are lower, which indicates that soil erosion projects are most efficient when the project unit is ‘town’. (4) At the town scale, if the hotspot area (6.84% of the total area) is treated as the protection target, it can reduce 50.42% of the total soil erosion of Hubei province. Hotspots of soil erosion overlap with high erosion zones, mainly in the northwestern, northeastern, and southwestern parts of Hubei province in 2000, while the hotspots in northwestern Hubei disappear in 2020. In conclusion, land managers in Hubei should optimize the land-use structure, soil and water conservation in slope land, and eco-engineering controls at the town scale.

Current Situation Analysis on Soil Erosion Risk Management in Development and Construction Project

2012 ◽  
Vol 430-432 ◽  
pp. 1967-1969 ◽  
Author(s):  
Qing Wu ◽  
Ling Ling Wang ◽  
Hui Qiao Gao ◽  
Yuee Chen
Keyword(s):  
Risk Management ◽  
Soil Erosion ◽  
Response Assessment ◽  
Hazard Management ◽  
Erosion Risk ◽  
Existing Problems ◽  
Soil Erosion Risk ◽  
The Status ◽  
Current Situation Analysis ◽  
The Government

Construction activities are one of crucial human factors making for serious erosion based on natural condition, and bring harmful effects on the environment and the project itself. So, the government and authorities set down a series of laws, regulations, norms, and procedures to intensify soil erosion hazard risk management. However, the awareness, response, assessment and management of soil erosion risk hazard by project owner were different. In this paper, by analyzing the status and existing problems of soil erosion risk hazard management, the strategies and approaches of soil erosion risk hazard management were explored.

scholarly journals Geoenvironmental degradation in the peninsular river basin in Jharkhand, India

2010 ◽  
Vol 22 (2) ◽  
pp. 251-265
Author(s):  
V. C. Jha ◽  
S. Saha
Keyword(s):  
Environmental Management ◽  
Soil Erosion ◽  
Mass Movement ◽  
The Other ◽  
Engineering Properties ◽  
Drainage Network ◽  
Drainage Basins ◽  
Land Mass ◽  
The Status

Geoenvironmental characteristics of the Peninsular drainage basins in Jharkhand State of India is the result of endogenetic, exogenetic and anthropogenetic mechanisms. As the Peninsular landmass is the oldest land mass in its geomorphic history. Since pre-cambrian times the landmass is experiencing phases of aggradation and degradation. Recently, the man-induces mechanisms have also been dominating mechanisms in changing the surface morphology of the drainage basins. The role of weathering, mass movement and erosion is significant in reducing the strength of the landmass of such basins resulting environmental degradation in the basin landscape. Geoenvironmental factors are responsible in degrading the landmass ultimately affects the sustainability of the region. Among the geoenvironmental factors the engineering properties of the landscape like topography, drainage network, soil erosion, rockmass strength are more significant in identifying the terrain stability of the basin which causes the degradation. In this paper, an attempt has been made to analyse the engineering properties of the basin along with the other geoenvironmental factors to find out the status of degradation in the basin with a view to suggest a sound environmental management for the future development of region.

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