eCite Digital Repository

Soil properties resulting in superior maize yields upon climate warming

Citation

Feng, P and Wang, B and Harrison, MT and Wang, D and Liu, K and Huang, M and Liu, DL and Yu, Q and Hu, K, Soil properties resulting in superior maize yields upon climate warming, Agronomy for Sustainable Development ISSN 1774-0746 (In Press) [Refereed Article]


Preview
PDF
Pending copyright assessment - Request a copy
1Mb
  

Abstract

The impacts of global climate warming on maize yield vary regionally. However, less is known about how soil modulates regionally-specific impacts and soil properties that are able to alleviate adverse impacts of climate warming on maize productivity. In this study, we investigated the impacts of multiple soil inherent properties on the sensitivity of maize yield (SY,T) to growing season temperature across China. Our results show that a 1°C warming resulted in the largest yield decline (11.2 ± 6.1%) in the mid-eastern region, but the moderate yield increase (1.5 ± 2.9%) in the north-eastern region. Spatial variability in soil properties explained around 72% of the variation in SY,T. Soil organic carbon (SOC) content positively contributed the greatest extent (28.9%) to spatial variation of SY,T, followed by field capacity (9.7%). Beneficial impacts of increasing SOC content were pronounced in the north-eastern region where SOC content (11.9 ± 4.3 g kg-1) was much higher than other regions. Other soil properties (e.g plant wilting point, sand content, bulk density, and saturated water content) were generally negatively correlated with SY,T. This study is the first one to answer how soil inherent properties can modulate the negative impacts of climate warming on maize yield in China. Our findings highlight the importance of SOC in alleviating adverse global warming impacts on maize productivity. To ensure food security for a rapidly increasing population under a changing climate, appropriate farming management practices that improve SOC content could reduce risk of adverse effects of global climate warming through a gain in yield stability and more resilient production in China’s maize belt.

Item Details

Item Type:Refereed Article
Keywords:climate crisis, sensitivity analysis, soil inherent properties, maize yield, China cropping belt, soil organic carbon, climate variability, yields, maize, corn, wheat, model, food security, global warming, water, drought, wilting point
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Agriculture, land and farm management
Research Field:Sustainable agricultural development
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Mitigation of climate change
Objective Field:Management of greenhouse gas emissions from plant production
UTAS Author:Harrison, MT (Associate Professor Matthew Harrison)
UTAS Author:Liu, K (Mr Ke Liu)
ID Code:151625
Year Published:In Press
Deposited By:TIA - Research Institute
Deposited On:2022-08-02
Last Modified:2022-08-23
Downloads:0

Repository Staff Only: item control page