Species occurrence locations and environmental parameters used for predicting the potential planting regions of Pterocarpus santalinus

This study explores the habitat distribution of Pterocarpus santalinus, a
valuable rosewood species, across China, focusing on its response to
current and future climate changes. Utilizing the MaxEnt model, we assess
its suitable habitat under present conditions and future climate scenarios
(SSPs126, SSPs245, and SSPs585). Our findings reveal that the current
suitable habitat, spanning approximately 409,600 km², is primarily located
in the central and southern parts of Guangdong, Guangxi, Fujian,
Yunnan, as well as in the Hainan provinces, along with the
coastal regions of Taiwan, and the Sichuan-Chongqing border. The
habitat's distribution is significantly influenced by climatic
factors such as temperature seasonality (bio4), mean temperature of the
wettest quarter (bio8), annual mean temperature (bio1), and annual
precipitation (bio12), while terrain and soil factors play a lesser role.
Under future climate scenarios, the suitable habitat for P.
santalinus is projected to expand, with a northeastward shift in
its distribution center. This research not only sheds light on the
geoecological characteristics and geographical distribution of P.
santalinus in China but also offers a scientific basis for planning its
cultivation areas and enhancing cultivation efficiency under changing
climate conditions.