Forest density intensifies the importance of snowpack to growth in water-limited pine forests
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Abstract
Warming climate and resulting declines in seasonal snowpack have been associated with drought stress and tree mortality in seasonally snow‐covered watersheds worldwide. Meanwhile, increasing forest density has further exacerbated drought stress due to intensified tree‐tree competition. Using a uniquely detailed dataset of population‐level forest growth (n=2495 sampled trees), we examined how inter‐annual variability in growth relates to snow volume across a range of forest densities (e.g., competitive environments) in sites spanning a broad aridity gradient across the United States. Forest growth was positively related to snowpack in water‐limited forests located at low latitude, and this relationship was intensified by forest density. However, forest growth was negatively related to snowpack in a higher latitude more energy‐limited forest, and this relationship did not interact with forest density. Future reductions in snowpack may have contrasting consequences, as growth may respond positively in energy‐limited forests and negatively in water‐limited forests; however, these declines may be mitigated by reducing stand density through forest thinning.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Forest density intensifies the importance of snowpack to growth in water-limited pine forests |
| Series title | Ecological Applications |
| DOI | 10.1002/eap.2211 |
| Volume | 31 |
| Issue | 1 |
| Year Published | 2021 |
| Language | English |
| Publisher | Ecological Society of America |
| Contributing office(s) | Southwest Biological Science Center |
| Description | e02211, 12 p. |
| Google Analytic Metrics | Metrics page |