Stable nitrogen isotope in tree rings: Progresses, problems and prospects
WANG Keyi, LIU Xiaohong, ZENG Xiaomin, XU Guobao, ZHANG Lingnan, LI Chunyue
Acta Geographica Sinica . 2021, (5): 1193 -1205 .  DOI: 10.11821/dlxb202105011