CLIMATE-CHANGE
; GLOBAL DATASET
; SOIL-MOISTURE
; PRECIPITATION
; VEGETATION
; LEGACIES
; RESOLUTION
; FORCINGS
; INDEX
WOS学科分类:
Multidisciplinary Sciences
WOS研究方向:
Science & Technology - Other Topics
英文摘要:
While many studies have reported that drought events have substantial negative legacy effects on forest growth, it remains unclear whether wetness events conversely have positive growth legacy effects. Here, we report pervasive and substantial growth enhancement after extreme wetness by examining tree radial growth at 1929 forest sites, satellite-derived vegetation greenness, and land surface model simulations. Enhanced growth after extreme wetness lasts for 1 to 5 years and compensates for 93 +/- 8% of the growth deficit after extreme drought across global water-limited regions. Remarkable wetness-enhanced growths are observed in dry forests and gymnosperms, whereas the enhanced growths after extreme wetness are much smaller in wet forests and angiosperms. Limited or no enhanced growths are simulated by the land surface models after extreme wetness. These findings provide new evidence for improving climate-vegetation models to include the legacy effects of both drought and wet climate extremes.
1.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 2.Peking Univ, MOE Lab Earth Surface Proc, Beijing 100871, Peoples R China 3.Harvard Univ, Sch Engn & Appl Sci, Harvard China Project, Cambridge, MA 02138 USA 4.Ctr Etud Orme Merisiers, IPSL LSCE, CEA CNRS UVSQ UPSaclay, F-91191 Gif Sur Yvette, France 5.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 6.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China 7.CALTECH, Pasadena, CA 91125 USA
Recommended Citation:
Jiang, Peng,Liu, Hongyan,Piao, Shilong,et al. Enhanced growth after extreme wetness compensates for post-drought carbon loss in dry forests[J]. NATURE COMMUNICATIONS,2019-01-01,10