Plant gas exchange and water status in urban desert landscapes

被引：51

作者：

Martin, CA ^{[1
]}

Stabler, LB ^{[1
]}

机构：

[1] Arizona State Univ, Dept Plant Biol, Tempe, AZ 85287 USA

来源：

JOURNAL OF ARID ENVIRONMENTS | 2002年 / 51卷 / 02期

基金：

美国国家科学基金会;

关键词：

conductance efficiency; irrigation; landscape design; photosynthesis; water potential; water use efficiency;

D O I：

10.1006/jare.2001.0946

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Gas exchange and water status were evaluated for plants at irrigated residential and unirrigated remnant Sonoran Desert sites in the greater Phoenix area, Arizona, U.S.A. Gas exchanges fluxes were higher for plants at the residential sites than for those at the desert sites. Plant water status was more favorable at residential sites for every season except the late summer monsoon, and time of day for maximum photosynthesis was later for residential plants during summer and winter months. These data suggest that yearly CO2 uptake was a function of plant water status and summer heat stress, and land use in these urban desert landscapes. (C) 2002 Elsevier Science Ltd.

引用

页码：235 / 254

页数：20

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