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List of indicators related to desertification

Table. 1. List of candidate indicators related to causes or processes of land degradation and desertification in the pilot areas

PHYSICAL AND ECOLOGICAL INDICATORS

Climate

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Air temperature + + +
Rainfall + + + + + +
Aridity index + + + +
Potential evapotranspiration + + + + +
Rainfall seasonality + + + + +
Rainfall erosivity +


Water

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Water quality + +
Water quantity + +
Groundwater exploitation + +
Water consumption/water demands + +


Soils

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Drainage + + +
Parent material + + + +
Rock fragments + + + +
Slope aspect + + + +
Slope gradient + + + +
Soil depth + + + + +
Soil texture + + + + +
Soil water storage capacity + + +
Exposure of rock outcrops + + +
Organic matter surface horizon + + +
Degree of soil erosion + +
electrical conductivity =


Vegetation

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Major land use + + + + +
Vegetation cover type + + + +
Plant cover + + + +
Deforested area + + +


Water runoff

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Drainage density + +
Flooding frequency +
Impervious surface area + + + +


Fires

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Fire frequency + + +
Fire risk +
Burned area + + +


ECONOMIC INDICATORS

Agriculture

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Farm ownership + + +
Farm size +
Land fragmentation +
Net farm income + +
Parallel employment + +


Cultivation

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Tillage operations + + + +
Tillage depth + + +
Tillage direction + + +
Mechanization index + +


Husbandry

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Grazing control + + + +
Grazing intensity + + + +


Land management

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Fire protection + + + +
Sustainable farming +
Reclamation of affected areas +
Reclamation of mining areas + + +
Soil erosion control measures + + + + +
Soil water conservation measures + +
Terracing (presence of) + + + +


Land use

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Land abandonment + + + +
Land use intensity + + + + +
Land use type + + + + +
Period of existing land use + +
% urban area +
Rate of change of urban area +
Distance from seashore +


Water use

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Aquifer over exploitation + +
Irrigation percentage of arable land + + +
Runoff water storage + + +
Water consumption by sector +
Water scarcity + + +


Tourism

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Tourism intensity + + + + + +
Tourism change + + +


SOCIAL INDICATORS

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
Human poverty index + + +
Old age index + + +
Population density + + + + + +
Population growth rate + + + +
Population distribution +


INSTITUTIONAL INDICATORS

Water erosion Tillage erosion Wind erosion Soil salinization Water stress Forest fires Urbanization
EU farm subsidies + + +
Protected areas +
Policy enforcement + + + + +


Each indicator has been described by defining distinct classes. The classes has been assigned using existing classification systems such as the European geo-referenced soil data base, or existing research data as DIS4ME. The various classes of the indicators used have been organized according to the importance to land degradation and desertification risk (Table 2). Based on Table 1, indicators will be selected for each process or cause for collecting data in each pilot area. In all study areas, survey research will be conducted for different land use types (such as olive groves, vineyards, cereals, almonds, cotton, pastures, oak forests, pine forests, etc.) representative of Mediterranean environmental conditions. The included State indicators will allow monitoring the success of mitigation measures, and which will probably need to be tailored for maximum sensitivity to each particular technique. Driver and pressure indicators will focus on conditions where remedial intervention may be needed to prevent desertification. The datasets collected for the various indicators will be included in the Harmonised Database System (HIS) that is developed in WB6.