( ( ( The interpretation ) ( of ( ( land resources ) ( in ( this program ) ) ) ) ) ( ( is ( based ( upon ( ( ( ( ( Aldo ( Leopold 's ) ) idea ) ( of ( the ( land ethic ) ) ) ) , ) ( encompassing ( ( not only ) ( ( land ( but also ) ) ( ( ( ( ( air , ) water ) , ) and ) ( the ( associated biomes ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN interpretation)) (PP (IN of) (NP (NP (NN land) (NNS resources)) (PP (IN in) (NP (DT this) (NN program)))))) (VP (VBZ is) (VP (VBN based) (PP (IN upon) (NP (NP (NP (NNP Aldo) (NNP Leopold) (POS 's)) (NN idea)) (PP (IN of) (NP (DT the) (NN land) (NN ethic))) (, ,) (VP (VBG encompassing) (NP (CONJP (RB not) (JJ only)) (NP (NN land)) (CONJP (CC but) (RB also)) (NP (NP (NN air)) (, ,) (NP (NN water)) (, ,) (CC and) (NP (DT the) (JJ associated) (NNS biomes))))))))) (. .)))
The interpretation of land resources in this program  is based upon Aldo Leopold's idea of the land ethic, encompassing not only land but also air, water, and the associated biomes.
(ROOT (S (NP (JJ Terrestrial) (NNS biomes)) (VP (VBP are) (VP (VBN associated) (PP (IN with) (NP (NN land))) (, ,) (SBAR (IN while) (S (NP (JJ aquatic) (NNS ones)) (VP (VBP are) (VP (VBN associated) (PP (IN with) (NP (NN water))))))))) (. .)))