( ( The grassland ) ( ( is ( ( a ( major ecosystem ) ) ( in ( ( the ( northern China ) ) ( playing ( ( the ( crucial role ) ) ( in ( the ( surface ( energy ( and ( water budget ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN grassland)) (VP (VBZ is) (NP (NP (DT a) (JJ major) (NN ecosystem)) (PP (IN in) (NP (NP (DT the) (JJ northern) (NNP China)) (VP (VBG playing) (NP (NP (DT the) (JJ crucial) (NN role)) (PP (IN in) (NP (DT the) (NN surface) (NN energy) (CC and) (NN water) (NN budget))))))))) (. .)))
The grassland is a major ecosystem in the northern China playing the crucial role in the surface energy and water budget.
(ROOT (S (NP (NNP Beneficial) (NNS fungi)) (VP (VBP play) (NP (NP (DT a) (JJ crucial) (NN role)) (PP (IN in) (NP (NP (NN balance)) (PP (IN of) (NP (NNS ecosystems))))))) (. .)))
Beneficial fungi play a crucial role in balance of ecosystems.