Global Climate Change, Ecological Stress, and Tea Production

Ahmed, Selena; Griffin, Tim; Cash, Sean B.; Wang, Han; Matyas, Corene J.; Li, Chunlin; Orians, Colin M.; Stepp, John Richard; Robbat, Albert; Xue, Dayuan

doi:10.1007/978-981-13-2140-5_1

Cited by 23 publications

(21 citation statements)

References 66 publications

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“…Furthermore, in the case of tea, SIF provides a unique opportunity to directly monitor the product being harvested, as opposed to its being an indirect measure of yield as in fruiting crops. SIF observations are only related to tea yield, as opposed to tea quality, which would require more nuanced considerations [2,15]. SIF observations are from the Global Ozone Monitoring Experiment-2 (GOME-2) instrument flying on the Metop-A satellite.…”

Section: Yield From Sifmentioning

confidence: 99%

“…Values of T and soil moisture (SM) are resolved at the same spacing as for equation (1). Results from equation (2) indicate that soil moisture and temperature interact in determining tea productivity, with yields remaining high regardless of temperature when sufficient soil moisture is present ( figure 3(a)).…”

Section: Yield Variations In Response To Soil Moisture and Temperaturementioning

confidence: 99%

“…In tea plants the foliar relative water content and water potential decline when moisture in the soil is limiting, decreasing the photosynthetic rate via stomatal closure [5,27]. Leaf temperature, which is typically 2°C-12°C higher than air temperature [3], also directly influences the photosynthetic rate of tea, shoot growth, and the rate of shoot initiation [2], with adverse effects at high temperature. When soil water is not limiting, transpiration can reduce leaf temperature via latent cooling, as demonstrated by the sustained productivity when both temperature and soil moisture are high.…”

Section: Yield Variations In Response To Soil Moisture and Temperaturementioning

confidence: 99%

“…Tea plants are primarily grown in rainfed systems and are strongly dependent on weather conditions for optimal growth [1][2][3]. Kenya has ideal growing conditions for tea in the cool, wet, highlands east and west of the Great Rift Valley, and provides 8% of the world's tea [4].…”

Section: Introductionmentioning

confidence: 99%

“…In this study, we aim to predict the response of Kenyan tea yield to changes in heat and water stress associated with climate change. Our analysis framework is divided into three parts: (1) relating tea yield to remotely-sensed observations of solar-induced fluorescence (SIF); (2) resolving the response of SIF to daily heat and water stress using remotely-sensed observations of soil moisture and weather-station-based estimates of temperature; and (3) evaluating future yield responses using simulations from global climate models. We utilize low-order statistical models such that free parameters can be well-constrained by available data.…”

Section: Introductionmentioning

confidence: 99%

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Kenyan tea is made with heat and water: how will climate change influence its yield?

Rigden

Ongoma

Huybers

2020

Environ. Res. Lett.

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Tea is the most consumed beverage in the world apart from water. Climate change is anticipated to affect the tea industry, but quantified large-scale predictions of how temperature and water availability drive tea production is lacking in many regions. Here, we use satellite-derived observations to characterize the response of tea yield to water and heat stress from 2008 to 2016 across Kenya, the third largest producer of tea. We find that solar-induced fluorescence captures the interannual variability in tea yield remarkably well (Pearson's correlation coefficient, r=0.93), and that these variations are largely driven by the daily dynamics of soil moisture and temperature. Considering rising temperature in isolation suggests that yields in 2040-2070 would decrease by 10% relative to 1990-2020 (ranging between −15% to −4% across 23 models), but most climate models also simulate an increase in soil moisture over this interval that would offset loss, such that yields decrease by only 5% (ranging between −12% to +1%). Our results suggest that adaptation strategies to better conserve soil moisture would help avert damage, but such changes require advanced planning due to the longevity of a tea plant, underscoring the importance of better predicting soil moisture over the coming decades.

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Section: Yield From Sifmentioning

confidence: 99%

Section: Yield Variations In Response To Soil Moisture and Temperaturementioning

confidence: 99%

Section: Yield Variations In Response To Soil Moisture and Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Kenyan tea is made with heat and water: how will climate change influence its yield?

Rigden

Ongoma

Huybers

2020

Environ. Res. Lett.

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Medicinal plant‐associated rhizobacteria enhance the production of pharmaceutically important bioactive compounds under abiotic stress conditions

Vaghela

Gohel

2022

J Basic Microbiol

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Interest in cultivating valuable medicinal plants to collect bioactive components has risen extensively over the world to meet the demands of health care systems, pharmaceuticals, and food businesses. Farmers commonly use chemical fertilizers to attain maximal biomass and yield, which have negative effects on the growth, development, and bioactive constituents of such medicinally important plants. Because of its low cost, environmentally friendly behavior, and nondestructive impact on soil fertility, plant health, and human health, the use of beneficial rhizobial microbiota is an alternative strategy for increasing the production of useful medicinal plants under both standard and stressed conditions. Plant growth‐promoting rhizobacteria (PGPR) associated with medicinal plants belong to the genera Azotobacter, Acinetobacter, Bacillus, Brevibacterium, Burkholderia, Exiguobacterium, Pseudomonas, Pantoea, Mycobacterium, Methylobacterium, and Serratia. These microbes enhance plant growth parameters by producing secondary metabolites, including enzymes and antibiotics, which help in nutrient uptake, enhance soil fertility, improve plant growth, and protect against plant pathogens. The role of PGPR in the production of biomass and their effect on the quality of bioactive compounds (phytochemicals) is described in this review. Additionally, the mitigation of environmental stresses including drought stress, saline stress, alkaline stress, and flooding stress to herbal plants is illustrated.

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Causes of tea land dynamics in Sri Lanka between 1995 and 2030

Jayasinghe,

Kumar

2023

Reg Environ Change

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Global Climate Change, Ecological Stress, and Tea Production

Cited by 23 publications

References 66 publications

Kenyan tea is made with heat and water: how will climate change influence its yield?

Kenyan tea is made with heat and water: how will climate change influence its yield?

Medicinal plant‐associated rhizobacteria enhance the production of pharmaceutically important bioactive compounds under abiotic stress conditions

Causes of tea land dynamics in Sri Lanka between 1995 and 2030

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