( This ( ( ( is ( very high ) ) ( when ( grown ( on ( ( deep soils ) ( because ( of ( the ( deep-rooting characteristic ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ is) (ADJP (RB very) (JJ high)) (SBAR (WHADVP (WRB when)) (S (VP (VBN grown) (PP (IN on) (NP (NP (JJ deep) (NNS soils)) (PP (RB because) (IN of) (NP (DT the) (JJ deep-rooting) (NN characteristic))))))))) (. .)))
This is very high when grown on deep soils because of the deep-rooting characteristic.
(ROOT (S (NP (JJ Deep) (NNS roots)) (VP (MD will) (ADVP (RBS best)) (VP (VB prevent) (NP (DT a) (NN tree)) (PP (IN from) (S (VP (VBG being) (VP (VBN blown) (PRT (RP over)) (PP (IN by) (NP (JJ high) (NNS winds))) (PP (IN during) (NP (DT a) (NN storm))))))))) (. .)))
Deep roots will best prevent a tree from being blown over by high winds during a storm.