Next Article in Journal
The ALMT Gene Family Performs Multiple Functions in Plants
Next Article in Special Issue
Validation of a Process-Based Agro-Ecosystem Model (Agro-IBIS) for Maize in Xinjiang, Northwest China
Previous Article in Journal
Quantifying Variability in Maize Yield Response to Nutrient Applications in the Northern Nigerian Savanna
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessReview

Cropping Systems and Climate Change in Humid Subtropical Environments

Agricultural & Biological Engineering Department, University of Florida, Frazier Rogers Hall, Gainesville, FL 32611, USA
Author to whom correspondence should be addressed.
Agronomy 2018, 8(2), 19;
Received: 15 December 2017 / Revised: 7 February 2018 / Accepted: 10 February 2018 / Published: 14 February 2018
(This article belongs to the Special Issue Adapting Crop Productivity to Climate Change)
PDF [2484 KB, uploaded 14 February 2018]


In the future, climate change will challenge food security by threatening crop production. Humid subtropical regions play an important role in global food security, with crop rotations often including wheat (winter crop) and soybean and maize (summer crops). Over the last 30 years, the humid subtropics in the Northern Hemisphere have experienced a stronger warming trend than in the Southern Hemisphere, and the trend is projected to continue throughout the mid- and end of century. Past rainfall trends range, from increases up to 4% per decade in Southeast China to −3% decadal decline in East Australia; a similar trend is projected in the future. Climate change impact studies suggest that by the middle and end of the century, wheat yields may not change, or they will increase up to 17%. Soybean yields will increase between 3% and 41%, while maize yields will increase by 30% or decline by −40%. These wide-ranging climate change impacts are partly due to the region-specific projections, but also due to different global climate models, climate change scenarios, single-model uncertainties, and cropping system assumptions, making it difficult to make conclusions from these impact studies and develop adaptation strategies. Additionally, most of the crop models used in these studies do not include major common stresses in this environment, such as heat, frost, excess water, pests, and diseases. Standard protocols and impact assessments across the humid subtropical regions are needed to understand climate change impacts and prepare for adaptation strategies. View Full-Text
Keywords: climate; climate variability; climate adaptation; wheat-soybean rotation; wheat-maize rotation climate; climate variability; climate adaptation; wheat-soybean rotation; wheat-maize rotation

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Hernandez-Ochoa, I.M.; Asseng, S. Cropping Systems and Climate Change in Humid Subtropical Environments. Agronomy 2018, 8, 19.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Agronomy EISSN 2073-4395 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top