Fig. 5
From: Coupling process of carbon sink service flow based on metacoupling framework

Outflow plot of pericoupling of water subsystem. (a) Hierarchical distribution of CSSFs in 2000. (b) Hierarchical distribution of CSSFs in 2010. (c) Hierarchical distribution of CSSFs in 2020. (d) CSSF outflow values from 2000 to 2020.