Photosynthetic response of desert plants to small rainfall events in the Junggar Basin, northwest China

Title:

Photosynthetic response of desert plants to small rainfall events in the Junggar Basin, northwest China

Creator:

Wu, Y., Zheng , X. J., and Li, Y.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:4b95e4ac-53c5-419a-a542-d4e0cef03e25
uuid:4b95e4ac-53c5-419a-a542-d4e0cef03e25
issn:0300-3604
doi:10.1007/s11099-015-0168-4

Subject:

fotosyntéza, photosynthesis, leaf water uptake, photosynthetic rate, plant functional types, stomatal conductance, trichome, water-use efficiency, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

Small rainfall events (≤ 5 mm) have short intervals, but account for a large proportion of the annual rainfall frequency in arid lands. To explore possible strategies used by desert plants to utilize the small rainfall events, we investigated the photosynthetic responses of 28 species to 1 mm and 6 mm of simulated rainfall in the Junggar Basin, northwest China. The species were grouped into four plant functional types: short-life-cycle herbs, long-life-cycle herbs, non-phreatophyte shrubs, and phreatophyte shrubs. The results showed that the net photosynthetic rate, stomatal conductance, and transpiration rate increased in most of the herbs, but they responded differently to the rainfall treatments. However, the water-use efficiency did not significantly differ after 1 and 6 mm rainfall treatments in most of the shrubs. The maximum water absorption by leaves and the percentage increase of a leaf water content (LWC) were higher in the herbs than those in the shrubs. Plants with dense trichomes had the highest LWC. The results suggested that the desert plants benefited from the micro-environment humidity provided by the small rainfall events., Y. Wu, X. J. Zheng , Y. Li., and Obsahuje seznam literatury

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

3-11

Source:

Photosynthetica | 2016 Volume:54 | Number:1

Harvested from:

CDK

Metadata only:

false