Relationship among drought, hydraulic metabolic, carbon starvation and vegetation mortality

Lei, 董蕾 Dong; Jiyue, 李吉跃 Li

doi:10.5846/stxb201304270839

Cited by 7 publications

(1 citation statement)

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“…Terpenoids, phenolics, resins, tannins, and other pest-and pathogen-resistant substances in trees are all synthesized from NSCs [45]. Therefore, inadequate NSC levels will retard the growth rates of trees and reduce the ability of trees to resist pests and pathogens, and drought stress can also increase and reduce the sucrose and starch synthesis of leaves, respectively, thereby increasing the provision of food to pests [46].…”

Section: Effects Of Drought On the Pine Caterpillar Outbreakmentioning

confidence: 99%

Effect of Drought on Outbreaks of Major Forest Pests, Pine Caterpillars (Dendrolimus spp.), in Shandong Province, China

Bao

Zhang

Tong

et al. 2019

Forests

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As the main defoliators of coniferous forests in Shandong Province, China, pine caterpillars (including Dendrolimus suffuscus suffuscus Lajonquiere, D. spectabilis Butler, and D. tabulaeformis Tsai et Liu) have caused substantial forest damage, adverse economic impacts, and losses of ecosystem resources. Therefore, elucidating the effects of drought on the outbreak of these pests is important for promoting forestry production and ecological reconstruction. Accordingly, the aim of the present study was to analyse the spatiotemporal variation of drought in Shandong Province, using the Standard Precipitation Index, and to investigate the impact of drought on the outbreak of pine caterpillar infestations. Future trends in drought and pine caterpillar populations were then estimated using the Hurst exponent. The results showed that: (1) Drought decreased gradually and showed a wetting trend from 1981 to 2012, with frequency decreasing on a decadal scale as follows: 1980s > 1990s > 2000s > 2010s; (2) The total area of pine caterpillar occurrence decreased strongly from 1992 to 2012; (3) Long-term or prolonged drought had a greater positive impact on pine caterpillar outbreak than short-term drought; (4) In the future, a greater portion of the province’s area will experience increased wetting conditions (57%) than increased drought (43%), and the area of pine caterpillar outbreak is estimated to decrease overall. These findings help elucidate the relationship between drought and pine caterpillar outbreak in Shandong Province and, hence, provide a basis for developing preventive measures and plans.

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Section: Effects Of Drought On the Pine Caterpillar Outbreakmentioning

confidence: 99%

Effect of Drought on Outbreaks of Major Forest Pests, Pine Caterpillars (Dendrolimus spp.), in Shandong Province, China

Bao

Zhang

Tong

et al. 2019

Forests

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Enhanced coupling of light use efficiency and water use efficiency in arid and semi‐arid environments

Gao

Wang

et al. 2021

Ecohydrology

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Both light use efficiency (LUE) and water use efficiency (WUE) play essential roles in ecosystem production. The extent to which ecosystem production is affected by the coupling between LUE and WUE remains unclear. In this study, we used data from flux measurements and weather stations in the Heihe River Basin, China, along a strong climatic gradient to quantify the relationship between LUE and WUE. Variations of LUE explained up to 85% of the variations of WUE. The contribution of LUE to WUE increased with increasing water stress. Pearson's correlation coefficient between LUE and WUE increased from À0.12 to +0.63 with decreasing LUE. The coordination between LUE and WUE was essential to explaining the insensitive of WUE and GPP with increasing water stress. These results suggest that ecosystems enhance the coordination between light and water use when water stress is high. They enhance our understanding of the drought resilience of ecosystems and reduce uncertainties associated with the carbon cycle in drylands.

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Effects of Chronic Exposure to Microcystin-LR on Leaf Growth and Non-structural Carbohydrates of Oenanthe Javanica (Blume) DC

Zhang

Chen

et al. 2023

Environmental Science and Engineering

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Relationship among drought, hydraulic metabolic, carbon starvation and vegetation mortality

Cited by 7 publications

References 0 publications

Effect of Drought on Outbreaks of Major Forest Pests, Pine Caterpillars (Dendrolimus spp.), in Shandong Province, China

Effect of Drought on Outbreaks of Major Forest Pests, Pine Caterpillars (Dendrolimus spp.), in Shandong Province, China

Enhanced coupling of light use efficiency and water use efficiency in arid and semi‐arid environments

Effects of Chronic Exposure to Microcystin-LR on Leaf Growth and Non-structural Carbohydrates of Oenanthe Javanica (Blume) DC

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