scholarly journals Squandering water in drylands: the water‐use strategy of the phreatophyte Ziziphus lotus in a groundwater‐dependent ecosystem

2021 ◽  
Vol 108 (2) ◽  
pp. 236-248 ◽  
Author(s):  
M. Trinidad Torres‐García ◽  
María J. Salinas‐Bonillo ◽  
Fernando Gázquez‐Sánchez ◽  
Ángel Fernández‐Cortés ◽  
José I. Querejeta ◽  
...  
Keyword(s):  
Water Use ◽  
Water Use Strategy

Evapotranspiration partitioning and its implications for plant water use strategy: Evidence from a black locust plantation in the semi-arid Loess Plateau, China

2018 ◽  
Vol 424 ◽  
pp. 428-438 ◽  
Author(s):  
Lei Jiao ◽  
Nan Lu ◽  
Bojie Fu ◽  
Jian Wang ◽  
Zongshan Li ◽  
...  
Keyword(s):  
Water Use ◽  
Loess Plateau ◽  
Black Locust ◽  
Plant Water ◽  
Plant Water Use ◽  
Water Use Strategy ◽  
Semi Arid ◽  
Evapotranspiration Partitioning

Plant water‐use strategy mediates stomatal effects on the light induction of photosynthesis

2018 ◽  
Vol 222 (1) ◽  
pp. 382-395 ◽  
Author(s):  
Ross M. Deans ◽  
Timothy J. Brodribb ◽  
Florian A. Busch ◽  
Graham D. Farquhar
Keyword(s):  
Water Use ◽  
Light Induction ◽  
Plant Water ◽  
Plant Water Use ◽  
Water Use Strategy

Fog mitigates the consequences of a profligate water use strategy in a Macaronesian cloud forest tree species

2021 ◽  
Vol 593 ◽  
pp. 125871
Author(s):  
Carlos M. Regalado ◽  
Axel Ritter
Keyword(s):  
Water Use ◽  
Tree Species ◽  
Cloud Forest ◽  
Forest Tree ◽  
Forest Tree Species ◽  
Water Use Strategy

scholarly journals Water use strategies and ecosystem-atmosphere exchange of CO<sub>2</sub> in two highly seasonal environments

2006 ◽  
Vol 3 (4) ◽  
pp. 421-437 ◽  
Author(s):  
A. Arneth ◽  
E. M. Veenendaal ◽  
C. Best ◽  
W. Timmermans ◽  
O. Kolle ◽  
...  
Keyword(s):  
Water Use ◽  
Carbon Gain ◽  
Soil Conditions ◽  
Growth Environment ◽  
Active Season ◽  
Respiration Rates ◽  
Downy Birch ◽  
Water Use Strategy ◽  
Mopane Woodland ◽  
Semi Arid

Abstract. We compare assimilation and respiration rates, and water use strategies in four divergent ecosystems located in cold-continental central Siberia and in semi-arid southern Africa. These seemingly unrelated systems have in common a harsh and highly seasonal environment with a very sharp transition between the dormant and the active season, with vegetation facing dry air and soil conditions for at least part of the year. Moreover, the northern high latitudes and the semi-arid tropics will likely experience changes in key environmental parameters (e.g., air temperature and precipitation) in the future; indeed, in some regions marked climate trends have already been observed over the last decade or so. The magnitude of instantaneous or daily assimilation and respiration rates, derived from one to two years of eddy covariance measurements in each of the four ecosystems, was not related to the growth environment. For instance, respiration rates were clearly highest in the two deciduous systems included in the analysis (a Mopane woodland in northern Botswana and a Downy birch forest in Siberia; >300 mmol m−2 d−1), while assimilation rates in the Mopane woodland were relatively similar to a Siberian Scots pine canopy for a large part of the active season (ca. 420 mmol m−2 d−1). Acknowledging the limited number of ecosystems compared here, these data nevertheless demonstrate that factors like vegetation type, canopy phenology or ecosystem age can override larger-scale climate differences in terms of their effects on carbon assimilation and respiration rates. By far the highest rates of assimilation were observed in Downy birch, an early successional species. These were achieved at a rather conservative water use, as indicated by relatively low levels of λ, the marginal water cost of plant carbon gain. Surprisingly, the Mopane woodland growing in the semi-arid environment had significantly higher values of λ. However, its water use strategy included a very plastic response to intermittently dry periods, and values of λ were much more conservative overall during a rainy season with low precipitation and high air saturation deficits. Our comparison demonstrates that forest ecosystems can respond very dynamically in terms of water use strategy, both on interannual and much shorter time scales. But it remains to be evaluated whether and in which ecosystems this plasticity is mainly due to a short-term stomatal response, or alternatively goes hand in hand with changes in canopy photosynthetic capacity.

Effect of traditional soybean breeding on water use strategy in arid and semi-arid areas

2020 ◽  
Vol 120 ◽  
pp. 126128
Author(s):  
Ming-Hao Yang ◽  
Mohamed Z.Z. Jahufer ◽  
Jin He ◽  
Rui Dong ◽  
Rainer Hofmann ◽  
...  
Keyword(s):  
Water Use ◽  
Arid Areas ◽  
Soybean Breeding ◽  
Water Use Strategy ◽  
Semi Arid

Water use strategy of Platycladus orientalis in Beijing mountainous area

2017 ◽  
Vol 37 (11) ◽  
Author(s):  
刘自强 LIU Ziqiang ◽  
余新晓 YU Xinxiao ◽  
娄源海 LOU Yuanhai ◽  
李瀚之 LI Hanzhi ◽  
贾国栋 JIA Guodong ◽  
...  
Keyword(s):  
Water Use ◽  
Mountainous Area ◽  
Platycladus Orientalis ◽  
Water Use Strategy

scholarly journals Seasonal Dynamics of Water Use Strategy of Two Salix Shrubs in Alpine Sandy Land, Tibetan Plateau

PLoS ONE ◽  
2016 ◽  
Vol 11 (5) ◽  
pp. e0156586 ◽  
Author(s):  
Yajuan Zhu ◽  
Guojie Wang ◽  
Renqiang Li
Keyword(s):  
Tibetan Plateau ◽  
Water Use ◽  
Seasonal Dynamics ◽  
Sandy Land ◽  
Water Use Strategy ◽  
Alpine Sandy Land

scholarly journals Soil water use strategy of dominant species in typical natural and planted shrubs in loess hilly region

2017 ◽  
Vol 41 (2) ◽  
pp. 175-185 ◽  
Author(s):  
LÜ Ting ◽  
◽  
◽  
◽  
◽  
...  
Keyword(s):  
Soil Water ◽  
Water Use ◽  
Dominant Species ◽  
Hilly Region ◽  
Water Use Strategy ◽  
Loess Hilly Region

Water use strategy of Ammopiptanthus mongolicus community in a drought year on the Mongolian Plateau

2020 ◽  
Vol 13 (6) ◽  
pp. 793-800
Author(s):  
Ya-Juan Zhu ◽  
Guo-Jie Wang ◽  
Zhi-Ming Xin
Keyword(s):  
Soil Water ◽  
Water Use ◽  
Water Source ◽  
Water Sources ◽  
Desert Ecosystem ◽  
Total Water ◽  
Mongolian Plateau ◽  
Ammopiptanthus Mongolicus ◽  
Deep Soil ◽  
Water Use Strategy

Abstract Aims In desert ecosystems, water is a restricting factor for plant growth and vegetation dynamics. The relatively stable water source from deep soil profile or groundwater is important for plant survival during drought. Understanding water use strategy of endangered species, in desert ecosystem is essential for their conservation and restoration such as Ammopiptanthus mongolicus on the Mongolian Plateau. Methods The stable isotope method of δD and δ 18O was used to examine the main water sources of A. mongolicus and two companion shrubs, e.g. Artemisia ordosica and Artemisia xerophytica. The contribution of different water sources to each species was calculated by IsoSource model. Leaf δ 13C was used to compare long-term water use efficiency of three shrubs. Soil moisture and root distribution of three shrubs was measured to explain plant water use strategy. Important Findings The results showed that A. mongolicus relied on groundwater and 150–200 cm deep soil water, with the former contributing to almost half of its total water source. Artemisia ordosica mainly used 150–200 cm deep soil water, but also used shallow soil water within 100 cm in summer and autumn. Artemisia xerophytica mainly used 150–200 cm deep soil water and groundwater, with the latter contributing to about 30%–60% of its total water source. The three shrubs had dimorphic or deep root systems, which are in accord with their water sources. The WUE in the evergreen shrub A. mongolicus was higher than in two deciduous Artemisia shrubs, which may be an adaptive advantage in desert ecosystem. Therefore, groundwater is an important water source for the endangered shrub A. mongolicus in a drought year on Mongolian Plateau. Ammopiptanthus mongolicus and two Artemisia shrubs competed for deep soil water and groundwater.

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