Regulation (EU) No 1305/2013 of the European Parliament and of the CouncilShow full title

Regulation (EU) No 1305/2013 of the European Parliament and of the Council of 17 December 2013 on support for rural development by the European Agricultural Fund for Rural Development (EAFRD) and repealing Council Regulation (EC) No 1698/2005

ANNEX IIIU.K.

BIOPHYSICAL CRITERIA FOR THE DELIMITATION OF AREAS FACING NATURAL CONSTRAINTS

a

[F1Member States][F1The relevant authority] need only check fulfilment of this criterion against those of the thresholds that are relevant to the specific situation of an area

CRITERIONDEFINITIONTHRESHOLD
CLIMATE
Low TemperatureaLength of growing period (number of days) defined by number of days with daily average temperature > 5 °C (LGPt5) or≤ 180 days
Thermal-time sum (degree-days) for Growing Period defined by accumulated daily average temperature > 5 °C≤ 1 500 degree-days
DrynessRatio of the annual precipitation (P) to the annual potential evapotranspiration (PET)P/PET ≤ 0.5
CLIMATE AND SOIL
Excess Soil MoistureNumber of days at or above field capacity≥ 230 days
SOIL
Limited Soil DrainageaAreas which are water logged for significant duration of the year

Wet within 80 cm from the surface for over 6 months, or wet within 40 cm for over 11 months or

Poorly or very poorly drained soil or

Gleyic colour pattern within 40 cm from the surface

Unfavourable Texture and StoninessaRelative abundance of clay, silt, sand, organic matter (weight %) and coarse material (volumetric %) fractions≥ 15 % of topsoil volume is coarse material, including rock outcrop, boulder or

texture class in half or more (cumulatively) of the 100 cm soil surface is sand, loamy sand defined as:

Silt % + (2 × clay %) ≤ 30 % or

[X1Topsoil texture class is heavy clay

(≥ 60 % clay) or]

Organic soil (organic matter ≥ 30 %) of at least 40 cm or
Topsoil contains 30 % or more clay, and there are vertic properties within 100 cm of the soil surface
Shallow Rooting DepthDepth (cm) from soil surface to coherent hard rock or hard pan≤ 30 cm
Poor Chemical PropertiesaPresence of salts, exchangeable sodium, excessive aciditySalinity: ≥ 4 deci-Siemens per meter (dS/m) in topsoil or
Sodicity: ≥ 6 Exchangeable Sodium Percentage (ESP) in half or more (cumulatively) of the 100 cm soil surface layer or
Soil Acidity: pH ≤ 5 (in water) in topsoil
TERRAIN
Steep SlopeChange of elevation with respect to planimetric distance (%)≥ 15 %