Tree-ring growth response and regeneration dynamics of Pinus Ponderosa to climatic variability in Prescott National Forest, Arizona

Keywords: dendrochronology, regeneration dynamics, climate change
Session Type: Virtual Paper Abstract
Day: Friday
Session Start / End Time: 2/25/2022 11:20 AM (Eastern Time (US & Canada)) - 2/25/2022 12:40 PM (Eastern Time (US & Canada))
Room: Virtual 2

Abstract

A global response has been observed in forest structure and dynamics as a result of ongoing climate change. Trends noted include high tree mortality as well as changes in radial growth patterns in the arid Southwestern United States. Ponderosa Pine (Pinus Ponderosa - PIPO) is a dominant tree species in much of the Western U.S. and has adapted to withstand the region's dry climate. In Prescott National Forest, Arizona, PIPO mortality has reached 30%, therefore we aim to understand what current regeneration dynamics are taking place in the area, as well as determine how radial growth may be changing in mature individuals due to climate stress. This tree-ring growth response and regeneration dynamics study will highlight the variables responsible for altering the success of various tree species of the region as well as indicate extended drought periods possibly attributed to weather phenomena in the region such as El Nino/La Nina events.