DOI: 10.1016/j.jag.2013.09.012
Scopus记录号: 2-s2.0-84897563794
论文题名: Seasonal monitoring of soil erosion at regional scale: An application of the G2 model in crete focusing on agricultural land uses
作者: Panagos P ; , Christos K ; , Cristiano B ; , Ioannis G
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2014
卷: 27, 期: PARTB 起始页码: 147
结束页码: 155
语种: 英语
英文关键词: Copernicus
; Gavrilovic
; GMES
; Spatio-temporal mapping
; USLE
; Vegetation retention
Scopus关键词: agricultural land
; grassland
; land use
; mapping
; numerical model
; precipitation intensity
; shrubland
; soil erosion
; time series
; Universal Soil Loss Equation
; vegetation
; Aegean Islands
; Crete [Greece]
; Greece
英文摘要: A new soil erosion model, namely G2, was applied in the island of Crete with a focus on agricultural landuses, including potential grazing lands. The G2 model was developed within the Geoland2 project as anagro-environmental service in the framework of the Global Monitoring for Environment and Security(GMES, now Copernicus) initiative. The G2 model takes advantage of the empirical background of theUniversal Soil Loss Equation (USLE) and the Gavrilovic model, together with readily available time seriesof vegetation layers and 10-min rainfall intensity data to produce monthly time-step erosion risk mapsat 300 m cell size. The innovations of the G2 model include the implementation of land-use influenceparameters based on empirical data and the introduction of a corrective term in the estimation of thetopographic influence factor. The mean annual erosion rate in Crete was found to be 8.123 t ha-1. Theseason from October to January (the rainy season in Crete) was found to be the most critical, accounting for80% of the annual erosion in the island. Seasonal erosion figures proved to be crucial for the identificationof erosion hotspots and of risky land uses. In Crete, high annual erosion figures were detected in naturalgrasslands and shrublands (14.023 t ha-1), mainly due to the intensification of livestock grazing duringthe past decades. The G2 model allows for the integrated spatio-temporal monitoring of soil erosion perland-use type based on moderate data input requirements and existing datasets. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79634
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: European Commission, Joint Research Centre, Institute for Environment and Sustainability, via E. Fermi 2749, Ispra (VA), Italy; Aristotle University of Thessaloniki, School of Forestry and Natural Environment, Lab of Forest Management and Remote Sensing, Thessaloniki, Greece
Recommended Citation:
Panagos P,, Christos K,, Cristiano B,et al. Seasonal monitoring of soil erosion at regional scale: An application of the G2 model in crete focusing on agricultural land uses[J]. International Journal of Applied Earth Observation and Geoinformation,2014-01-01,27(PARTB)