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Identifying Human-Induced Spatial Differences of Soil Erosion Change in a Hilly Red Soil Region of Southern China
- Source :
- Sustainability, Vol 11, Iss 11, p 3103 (2019), Sustainability, Volume 11, Issue 11
- Publication Year :
- 2019
- Publisher :
- MDPI AG, 2019.
-
Abstract
- Soil erosion (SE) processes are closely related to natural conditions and human activities, posing a threat to environment and society. Identifying the human impact on regional SE changes is increasingly essential for pertinent SE management. Jiangxi province is studied here as a representative area of hilly-red-soil regions within southern China. The main objectives of this study were to investigate the changing trend of SE within Jiangxi and identify human impacts on regional SE change from the perspective of spatial differences, through a new approach based on a gravity-center model. Our results showed that SE status presented an overall amelioration from 1990 to 2015, while the average soil erosion modulus (SEM) declined from 864 to 281 Mg/(km2&middot<br />a). Compared to the situation under human and natural impacts, human-induced spatial differences of SE change demonstrated that the western and northwest regions showed stronger negative effects<br />the southern region shifted towards negative effects<br />the northeast region presented a much weaker negative effect. Our results indicated that 4 cities with strong negative effects need more attention in further SE management suited to their local conditions and development, and also suggested that the approach based on a gravity-center has potential for identifying the human impact on regional SE change from the perspective of spatial patterns.
- Subjects :
- 010504 meteorology & atmospheric sciences
Geography, Planning and Development
lcsh:TJ807-830
0507 social and economic geography
lcsh:Renewable energy sources
Management, Monitoring, Policy and Law
identify
01 natural sciences
Natural (archaeology)
spatial differences
change
lcsh:Environmental sciences
0105 earth and related environmental sciences
lcsh:GE1-350
soil erosion
Renewable Energy, Sustainability and the Environment
lcsh:Environmental effects of industries and plants
05 social sciences
Geography
lcsh:TD194-195
Southern china
human-induced
Spatial ecology
Changing trend
Physical geography
Red soil
050703 geography
Subjects
Details
- Language :
- English
- ISSN :
- 20711050
- Volume :
- 11
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Sustainability
- Accession number :
- edsair.doi.dedup.....2871edb76785593fa83793398d960c89