Plant Cell & Environment, Год журнала: 2024, Номер unknown

Опубликована: Сен. 10, 2024

The driving forces of transpiration are not only atmospheric evaporation but also root zone water supply and stomatal regulation among species. However, the biophysiological drivers remain incompletely understood in heterogeneous karst habitats. This study investigated commonly coexisting tree species Mallotus philippensis Celtis biondii two typical habitats: rock-dominated (RD) habitat control soil-dominated (SD) habitat. Over 2 years, soil moisture, transpiration, distribution, leaf potential were measured. results showed that moisture RD was significantly lower than SD Transpiration patterns differed between habitats, with species-specific distinctions driven by traits. M. small hydroscape areas its system mainly distributed both isohydric behaviour density drove to reduce response deficiency. Conversely, C. had large roots capable penetrating bedrock. It transpired higher relying on ample accessible through anisohydric having a more robust bedrock zones Our highlights critical role accessibility iso/anisohydric tendencies transpiration.

Язык: Английский