You will find all these QCD effects in the deep inelastic scattering results:
 there is a socalled scaling limit of DIS recovered by treelevel QCD which corresponds to free = noninteracting partons;
 there is a systematic way to calculate higher loops which results in scaling viaolation (confirmed experimentally);
 and there are the socalled nucleon structure functions F_{n}(x,Q²) which contain the nonperturbative QCD effects including sea quarks;
I think you should try to understand these structure functions plus certain sum rules which can be derived by integrating over the scaling variable x.
