Acknowledgements
We sincerely thank Mr. Yingwen Li and Yongxing Li for their helps on the
field fertilization and vegetation survey. This work was funded by
National Natural Science Foundation of China (31700371, 31670621,
31870463), Guangdong Basic and Applied Basic Research Foundation, China
(2019A1515011508), Pearl River Nova Program of Guangzhou (201710010140),
Innovation Foundation for Platform Construction of Guangdong Forestry,
China (2019KJCX021), R & D program of Guangdong Provincial Department
of Science and Technology (2018B030324003), and the Open Funding of Key
Laboratory of Vegetation Restoration and Management of Degraded
Ecosystems, South China Botanical Garden, Chinese Academy of Sciences
(DE2018023).