scholarly journals Spring Leafing Phenology Favors Younger Culms of Moso Bamboo: Aspects From Water Use Relations

2020 ◽  
Vol 11 ◽  
Author(s):  
Tingting Mei ◽  
Xiang Liu ◽  
Dongming Fang ◽  
Guomo Zhou ◽  
Chongyu Ye ◽  
...  
Keyword(s):  
Water Use ◽  
Moso Bamboo ◽  
Leafing Phenology

scholarly journals Water-Use Characteristics and Physiological Response of Moso Bamboo to Flash Droughts

2019 ◽  
Vol 16 (12) ◽  
pp. 2174 ◽  
Author(s):  
Minxia Zhang ◽  
Shulin Chen ◽  
Hong Jiang ◽  
Yong Lin ◽  
Jinmeng Zhang ◽  
...  
Keyword(s):  
Water Content ◽  
Water Use ◽  
Forest Canopy ◽  
Stand Density ◽  
Water Shortage ◽  
Volumetric Water Content ◽  
Moso Bamboo ◽  
Extreme Drought ◽  
Soil Volumetric Water Content ◽  
The Stability

Frequent flash droughts can rapidly lead to water shortage, which affects the stability of ecosystems. This study determines the water-use characteristics and physiological mechanisms underlying Moso bamboo response to flash-drought events, and estimates changes to water budgets caused by extreme drought. We analyzed the variability in forest canopy transpiration versus precipitation from 2011–2013. Evapotranspiration reached 730 mm during flash drought years. When the vapor pressure deficit > 2 kPa and evapotranspiration > 4.27 mm·day−1, evapotranspiration was mainly controlled through stomatal opening and closing to reduce water loss. However, water exchange mainly occurred in the upper 0–50 cm of the soil. When soil volumetric water content of 50 cm was lower than 0.17 m3·m−3, physiological dehydration occurred in Moso bamboo to reduce transpiration by defoliation, which leads to water-use efficiency decrease. When mean stand density was <3500 trees·ha−1, the bamboo forest can safely survive the flash drought. Therefore, we recommend thinning Moso bamboo as a management strategy to reduce transpiration in response to future extreme drought events. Additionally, the response function of soil volumetric water content should be used to better simulate evapotranspiration, especially when soil water is limited.

scholarly journals Corrigendum to “Water use strategies of different aged moso bamboo culms under summer drought” [For. Ecol. Manage. 498 (2021) 119567]

2022 ◽  
Vol 505 ◽  
pp. 119898
Author(s):  
Chazi Tong ◽  
Xin Zhang ◽  
Jiangbo Xie ◽  
Tingting Mei ◽  
Dongming Fang ◽  
...  
Keyword(s):  
Water Use ◽  
Moso Bamboo ◽  
Summer Drought

scholarly journals Corrigendum to “Water use strategies of different aged moso bamboo culms under summer drought” [For. Ecol. Manage. 498 (2021) 119567]

2021 ◽  
Vol 502 ◽  
pp. 119710
Author(s):  
Chazi Tong ◽  
Xin Zhang ◽  
Jiangbo Xie ◽  
Tingting Mei ◽  
Dongming Fang ◽  
...  
Keyword(s):  
Water Use ◽  
Moso Bamboo ◽  
Summer Drought

Water use strategies of different aged moso bamboo culms under summer drought

2021 ◽  
Vol 498 ◽  
pp. 119567
Author(s):  
Chazi Tong ◽  
Xin Zhang ◽  
Jiangbo Xie ◽  
Tingting Mei ◽  
Dongming Fang ◽  
...  
Keyword(s):  
Water Use ◽  
Moso Bamboo ◽  
Summer Drought

scholarly journals Growing in Mixed Stands Increased Leaf Photosynthesis and Physiological Stress Resistance in Moso Bamboo and Mature Chinese Fir Plantations

2021 ◽  
Vol 12 ◽  
Author(s):  
Chunju Peng ◽  
Yandong Song ◽  
Chong Li ◽  
Tingting Mei ◽  
Zhili Wu ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Water Use ◽  
Enzyme Activities ◽  
Chinese Fir ◽  
Moso Bamboo ◽  
Mixed Stand ◽  
Photochemical Quenching ◽  
Antioxidant Enzyme Activities ◽  
Leaf Photosynthesis ◽  
Ecological Performance

Mixed-stand plantations are not always as beneficial for timber production and carbon sequestration as monoculture plantations. Systematic analyses of mixed-stand forests as potential ideal plantations must consider the physiological-ecological performance of these plantations. This study aimed to determine whether mixed moso bamboo (Phyllostachys pubescens (Pradelle) Mazel ex J. Houz.) and Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) stands exhibited better physiological-ecological performance than monoculture plantations of these species. We analyzed leaf photosynthesis, chlorophyll fluorescence, antioxidant enzyme activities, chlorophyll content and leaf chemistry in a moso bamboo stand, a Chinese fir stand and a mixed stand with both species. The results showed that both species in the mixed stand exhibited significantly higher leaf net photosynthesis rate (Amax), instantaneous carboxylation efficiency (CUE), chlorophyll content, maximum quantum yield of photosynthesis (Fv/Fm), photochemical quenching coefficient (qP), PSII quantum yield [Y(II)], leaf nitrogen content, and antioxidant enzyme activities than those in the monoculture plantations. However, the non-photochemical quenching (NPQ) in Chinese fir and 2-year-old moso bamboo was significantly lower in the mixed stand than in the monocultures. In addition, the water use efficiency (WUE) of Chinese fir was significantly higher in the mixed stand. The results suggest that the increase in leaf net photosynthetic capacity and the improved growth in the mixed stand could be attributed primarily to the (i) more competitive strategies for soil water use, (ii) stronger antioxidant systems, and (iii) higher leaf total nitrogen and chlorophyll contents in the plants. These findings suggest that mixed growth has beneficial effects on the leaf photosynthesis capacity and physiological resistance of moso bamboo and Chinese fir.

Homeowners’ Preferences for Smart Irrigation Systems and Features

EDIS ◽  
2020 ◽  
Vol 2020 (5) ◽  
pp. 5
Author(s):  
Hayk Khachatryan ◽  
Alicia Rihn ◽  
Dong Hee Suh ◽  
Michael Dukes
Keyword(s):  
Water Use ◽  
Water Policy ◽  
Resource Economics ◽  
Irrigation Systems ◽  
Policy Makers ◽  
Fact Sheet ◽  
Drought Conditions ◽  
Economics Department ◽  
Irrigation Technologies

Drought conditions make landscape irrigation and reducing water use top-of-mind for many Floridians. Encouraging wise water use is of particular importance to the smart irrigation industry and water policy makers. This 5-page fact sheet written by Hayk Khachatryan, Alicia Rihn, Dong Hee Suh, and Michael Dukes and published by the UF/IFAS Food and Resource Economics Department pinpoints key attributes and barriers affecting consumers' irrigation purchases and their adoption of smart irrigation technologies. https://edis.ifas.ufl.edu/fe1080

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