Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.1111/geb.13243
Ключевые слова: conifer decline, conifer mortality, conifer range change, forest mortality geography, response to warming, taiga mortality, topography
Аннотация: Aim An increase in conifer mortality has been observed widely across the boreal forest biome. We investigate the causes of this mortality, in addition to the geospatial and temporal dynamics of mortality, in Siberian pine and fir stands. Location Central Siberia. Time period 1950-2018. Major taxa studied Pinus sibirica Du Tour and Показать полностьюAbies sibirica Ledeb. Methods We used geospatial analysis of satellite-derived (MODIS, Landsat) data, topography (elevation, slope steepness and exposure) and climatic variables [precipitation, thermal degree days (TDD = n-ary sumation (t > 0 degrees C), standardized precipitation evapotranspiration index (SPEI) and root zone moisture content (RZM)], together with in situ data. Dendrochronology was applied for analysis of the radial growth increment (GI). Results Siberian pine and fir mortality has increased greatly in recent decades. The mortality of forest stands and trees was dependent on the TDD, RZM and SPEI. Mortality occurred mainly within the southern part of the species ranges and decreased northward, correlated with latitudinal gradients of TDD and SPEI. Mortality was observed mostly at elevations
Журнал: GLOBAL ECOLOGY AND BIOGEOGRAPHY
Выпуск журнала: Vol. 30, Is. 2
Номера страниц: 543-556
ISSN журнала: 1466822X
Место издания: HOBOKEN
Издатель: WILEY