Acknowledgements
This study was funded by Aarhus University Centre for Circular Bioeconomy (http://cbio.au.dk/en/), Aarhus University Research Foundation AUFF Starting Grants (AUFF-E-2019-7-1) and Marie Skłodowska-Curie Individual Fellowship H2020-MSCA-IF-2018 (No. 839806). Ji Chen acknowledges financial supports on the field measurements from the National Natural Science Foundation of China (41701292) and China Postdoctoral Science Foundation (2017M610647, 2018T111091).