A sentence adverbial is related to the whole sentence, even when the sentence is composed of two coordinated clauses, as shown:
Zài Zhōngguó tā yóulǎn le xǔduō dìfāng, zuìhòu dìngjū xiàlái.
(In China he traveled to many places, finally he settled down.)
Ta yóulǎn le xǔduō dìfang, zuìhòu zài Zhōngguó dìngjū xiàlái.
(He traveled to many places, finally he settled down in China.)
In (a), the sentence adverbial ‘zài Zhōngguó’ (in China) is interpreted as applying to the two clauses, so we understand that the subject referent finally settled down in China, even though the adverbial of position is not explicitly expressed in the second clause. While in (b), the predication adverbial is only related to the second clause where it occurs, so the first clause would be interpreted as ‘he traveled around the world or to some other places, and finally he settled down in China’.
 Loar, J. K. (2011). Chinese syntactic grammar: functional and conceptual principles. New York: Peter Lang.