Le système de "prime à l'herbe" récompense de manière dégressive les
animaux présents selon le ratio "animaux/surface en herbe". Il est possible
d'explorer les effets d'un barème en 9 points maximum. Le fichier de paramètres
est adapté à la PAC telle qu'elle a été mise en oeuvre en 1993-95:
*
- ../aropa?/$PAYS/novpac5.par
La sous-matrice du PL imputable à la mise en oeuvre est :
c itest(k) + 2**5 (prime a l'herbe, surfaces primees si chargement animal < seuil)
c parametres : nhpgp (nbre seuils degressifs et primes progressives), prgpa-i, chgpa-i, rafou, faxou, timou
c nhpgp est limite a 9 ("a b c d e f g h i")
c variables : FOH(1-nhpgp+1,k,l), FPH(1-nhpgp+1,k,l), IPH(1-nhpgp+1,k,l) binaires, UGO(1-nhpgp+1,k,l),
c EFO(1-2,k,l), IEF(1-3,k,l) binaires
c contraintes : PFOUI(k,l), PFT(1-3,k,l), PFX(1-44,k,l)
c | FOH(n,) | FPH(n,) | UGO(n,) | IPH(n,) |X(71-2|X(81-2|UGH|EFO(1,|EFO(2,|IEF(1,|IEF(2,|IEF(3,|-ZF(k,l)|
c -------------------------------------------------------------------------------------------------------------------------------
c OBJ | prgpa-i | | | | | | | -1. | | | | | |
c -------------------------------------------------------------------------------------------------------------------------------
c FEOGB | prgpa-i | | | | | | | | | | | | |
c -------------------------------------------------------------------------------------------------------------------------------
c CPANI | prgpa-i | | | | | | | | | | | | |
c -------------------------------------------------------------------------------------------------------------------------------
c QUANT(k,l) | prgpa-i | | | | | | | | | | | | |
c -------------------------------------------------------------------------------------------------------------------------------
c PFOUI(k,l) | | | | 1. | | | | | | | | | |=| 1.
c -------------------------------------------------------------------------------------------------------------------------------
c PFT(1,k,l) | 1. | | | | -1. | -1. | | | | | | | |=|
c -------------------------------------------------------------------------------------------------------------------------------
c PFT(2,k,l) | | 1. | | | | -1. | | | | | | | |=|
c -------------------------------------------------------------------------------------------------------------------------------
c PFT(3,k,l) | | | 1. | | | |-1.| | | | | | |=|
c -------------------------------------------------------------------------------------------------------------------------------
c PFX(1,k,l) | | | | 3. | | | | | | 1. | 1. | 1. | |<| 3.
c | | | |0 si n=1 | | | | | | | | | |
c -------------------------------------------------------------------------------------------------------------------------------
c PFX(2-,k,l) | | -chgpa | 1. | | | | | | | | | | |<|
c . | | . | . | | | | | | | | | | |<|
c nhpgp+1 | | -chgp-| 1.| | | | | | | | | | |<|
c -------------------------------------------------------------------------------------------------------------------------------
c PFX(11-,k,l)|1. | | |-999. | | | | | | | | | |<|
c . | . | | | -999. | | | | | | | | | |<|
c nhpgp+11 | 1.| | | -999.| | | | | | | | | |<|
c -------------------------------------------------------------------------------------------------------------------------------
c PFX(21-,k,l)| |1. | |-999. | | | | | | | | | |<|
c . | | . | | -999 . | | | | | | | | | |<|
c nhpgp+21 | | 1.| | -999.| | | | | | | | | |<|
c -------------------------------------------------------------------------------------------------------------------------------
c PFX(31-,k,l)| | |1. |-999. | | | | | | | | | |<|
c . | | | . | -999. | | | | | | | | | |<|
c nhpgp+31 | | | 1.| -999.| | | | | | | | | |<|
c -------------------------------------------------------------------------------------------------------------------------------
c PFX(41,k,l) | prgpa-i | | | | | | | -1. | 1. | | | | -faxou |<|
c -------------------------------------------------------------------------------------------------------------------------------
c PFX(42,k,l) | | | | -saukl | | | | | |-999. | | | timou |<|
c | | | |0 si n=1 | | | | | | | | | |
c -------------------------------------------------------------------------------------------------------------------------------
c PFX(43,k,l) | | | -1. | | | | | | | |-999. | | ugbou |<|
c | | |0 si n=1 | | | | | | | | | | |
c -------------------------------------------------------------------------------------------------------------------------------
c PFX(44,k,l) | | -1. | | | | | | | | | |-999. | rafou* |<|
c | |0 si n=1 | | | | | | | | | | | saukl* |
c | | | | | | | | | | | | |der(k,l)|
c -------------------------------------------------------------------------------------------------------------------------------