Climate‐sensitivity of sugarcane yield in the southeastern Africa lowlands

Mbhamali, Thulebona W.; Jury, Mark R.

doi:10.1002/joc.7066

Cited by 2 publications

(3 citation statements)

References 70 publications

(70 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Aboveground dry weight, cane yield, and cane sucrose yield are significantly related to temperature and rainfall [ 11 ]. Atmospheric relative humidity, temperature, and sunshine are important factors that affect sugarcane elongation, sucrose accumulation, and yield [ 12 ]. Fabio and Gustavo used multi-year data from 37 meteorological stations to simulate and evaluate the potential and achievable yield of sugarcane and found that climate factors could explain 43% variability in sugarcane yield efficiency [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…The growth characteristics of sugarcane are variable across different time periods and are significantly influenced by climatic factors [ 8 ]. Previous studies [ 12 ] have extensively investigated the impact of climatic factors on sugarcane production. These studies used various methodologies, including relevant models, to assess sugarcane production [ 10 ], conducted regression analyses to establish a correlation between climatic factors and sugarcane yield [ 11 ], and examined the impacts of climatic factors during specific planting periods on sugarcane growth [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Climate Variations in the Low-Latitude Plateau Contribute to Different Sugarcane (Saccharum spp.) Yields and Sugar Contents in China

Zhao

Yu²,

et al. 2023

Plants

View full text Add to dashboard Cite

In China, the main sugarcane (Saccharum spp.) planting areas can be found in the low-latitude plateau (21° N–25° N, 97° E–106° E), which has most of the natural ecological types. However, there is limited information on the climate conditions of this region and their influence on sugarcane yield and sucrose content. Monthly variations in the main climate factors, namely, average air temperature (AAT), average relative humidity (ARH), average rainfall amount (ARA), and average sunshine duration (ASD), from 2000 to 2019 and sugarcane yield and sucrose content of 26 major sugarcane-producing areas from 2001/2002 to 2018/2019 were collected from the low-latitude plateau in Yunnan for studying the impact of climate variations on sugarcane yield and sucrose content. The results showed that AAT in the mid-growth season had a significant positive correlation with sucrose content (p < 0.05), and AAT in the late-growth season had a very significant positive correlation with sucrose content (p < 0.01). ARH in the mid-growth season had a significant positive correlation with sugarcane yield (p < 0.05). ARA in the early-growth season showed a significant positive correlation with sugarcane yield (p < 0.05). ASD in the late-growth season had a significant positive correlation with sugarcane yield (p < 0.05) and sucrose content (p < 0.01). The rainy and humid sugarcane areas were characterized by high ARA and ARH during the entire growth period, low AAT and ASD in the mid-growth season, and low AAT in the late-growth season, contributing to a high sugarcane yield, but not a high sucrose content. The low temperature and sunshine semi-humid sugarcane areas were characterized by the lowest AAT in the early and middle stages of sugarcane growth, less ASD in the early and middle stages, and less ARA in the early and late stages, which are unfavorable for sugarcane yield and sucrose content. The high temperature and humidity sugarcane areas were characterized by higher AAT and ARA, and moderate ASD during the entire growth period, resulting in good sugarcane growth potential and contributing to the sugarcane yield and sucrose content. The semi-humid and multi-sunshine sugarcane areas were characterized by the lowest ARH in the entire growth period, the lowest ARA in the middle and late seasons, and the longest ASD, contributing to an increase in sucrose content. The humid and sunny areas were characterized by the longest ASD and high ARH in the early and late seasons of sugarcane growth and moderate AAT and ARA during the entire growth season, which are beneficial for high sugarcane yield and sucrose content. Overall, these findings suggest that the sugarcane variety layout should be based on the climate type (of which there are five in the plateau), and corresponding cultivation practices should be used to compensate for the climatic conditions in various growth stages.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Climate Variations in the Low-Latitude Plateau Contribute to Different Sugarcane (Saccharum spp.) Yields and Sugar Contents in China

Zhao

Yu²,

et al. 2023

Plants

View full text Add to dashboard Cite

show abstract

“…Rainfall over KZN is stimulated by ridging highs and attendant cool southerly winds that blow over the warm Agulhas Current. As the marine air penetrates inland and lifts over southeast facing slopes, soil moisture and runoff enable crop yields and water resources (Mbhamali & Jury, 2021;Nel, 2009;Stats SA, 2022). Yet, recent studies suggest a long-term drying trend (Jury, 2021(Jury, , 2022Ndlovu & Demlie, 2020) that may require adaptive measures to sustain a growing population.…”

Section: Introductionmentioning

confidence: 99%

Meteorology of ‘ridging high’ rainfall over the KwaZulu‐Natal coastal plains

Jury

2023

Intl Journal of Climatology

Self Cite

View full text Add to dashboard Cite

The meteorology of ridging highs on the coast of KwaZulu‐Natal (KZN) South Africa was studied using Principal Component (pc) analysis of daily ERA5 sea level air pressure (SLP) fields 1980–2021. The second pc mode time score representing ridging highs, was associated with rain‐showers moving northeast‐ward along the KZN coast. Temporal analysis revealed an Oct‐Dec peak occurrence and 12‐day pulse intervals induced by the eastward migration of atmospheric Rossby waves in early summer. From a ranking of SLP pc2 and associated daily time series, a case study emerged: 14–18 Nov. 2009. This ridging high weather scenario had cold southerly winds subsiding over the warm Agulhas Current. Surface moisture fluxes >350 W/m2 create a buoyant airmass that slows and lifts over the coastal plains, inducing shallow clouds that reduce net solar radiation and potential evaporation. Interannual variability of ridging highs was studied by filtering the daily SLP pc2 time score to retain seasonal fluctuations and correlating with regional fields of SST. This revealed warming in the SW Indian Ocean associated with positive phase Indian Ocean Dipole (IOD). The atmospheric circulation forms a NW trough over Madagascar which deforms eastward moving mid‐latitude anticyclones. Thus, ridging highs that bring beneficial Oct‐Dec rains to the coast of KZN depend on downstream climate coupling with the IOD. Long‐term trends from a coupled model simulation 1980–2100 suggest a poleward retreat of the anticyclonic ridge, consistent with declining Durban‐area river flow in early summer.

show abstract

Climate‐sensitivity of sugarcane yield in the southeastern Africa lowlands

Cited by 2 publications

References 70 publications

Climate Variations in the Low-Latitude Plateau Contribute to Different Sugarcane (Saccharum spp.) Yields and Sugar Contents in China

Climate Variations in the Low-Latitude Plateau Contribute to Different Sugarcane (Saccharum spp.) Yields and Sugar Contents in China

Meteorology of ‘ridging high’ rainfall over the KwaZulu‐Natal coastal plains

Contact Info

Product

Resources

About