Toward an index of desiccation time to tree mortality under drought

被引：88

作者：

Blackman, Chris J. ^{[1
]}

Pfautsch, Sebastian ^{[1
]}

Choat, Brendan ^{[1
]}

Delzon, Sylvain ^{[2
]}

Gleason, Sean M. ^{[3
]}

Duursma, Remko A. ^{[1
]}

机构：

[1] Univ Western Sydney, Hawkesbury Inst Environm, Locked Bag 1797, Penrith, NSW 2751, Australia

[2] Univ Bordeaux, INRA, BIOGECO, F-33610 Cestas, France

[3] USDA ARS, Water Management Res, 2150 Ctr Ave,Build D,Suite 320, Ft Collins, CO 80526 USA

来源：

PLANT CELL AND ENVIRONMENT | 2016年 / 39卷 / 10期

关键词：

HYDRAULIC FAILURE; WATER-STRESS; VEGETATION MORTALITY; WOODY ANGIOSPERMS; RADIAL TRANSFER; SUMMER DROUGHT; XYLEM; CAVITATION; VULNERABILITY; CAPACITANCE;

D O I：

10.1111/pce.12758

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Research in plant hydraulics has provided important insights into plant responses to drought and species absolute drought tolerance. However, our ability to predict when plants will die from hydraulic failure under extreme drought is limited by a lack of knowledge with regards to the dynamics of plant desiccation following stomatal closure. Thus, we develop a simple hydraulics model based on branch-level traits that incorporates key aspects of allometry, rates of water loss and resistance to embolism thresholds in order to define species differences in the time it takes plants to desiccate from stomatal closure to lethal levels of drought stress.

引用

页码：2342 / 2345

页数：4

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