MaxEnt with remote sensing for tea plantation suitability under climate change
Shijie Wu1, Pengfei Tian2, Xiaochen Zhu1
1Jiangsu Provincial University Key Laboratory of Agricultural and Ecological Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, Jiangsu, China.
Iscience
|June 5, 2026
Summary
Climate change threatens premium tea cultivation. This study projects future tea suitability in China, revealing southward shifts and fragmentation under warming, impacting agricultural planning.
Area of Science:
- Agricultural Science
- Climate Science
- Remote Sensing
Background:
- Premium tea cultivation faces significant risks from climate change.
- Understanding future tea suitability is crucial for agricultural planning.
Purpose of the Study:
- To project tea suitability in Nanping, Southeastern China, under various climate scenarios.
- To identify key climatic drivers influencing tea cultivation.
- To provide a framework for assessing climate-sensitive crops.
Main Methods:
- Integrated Gaofen-6 imagery, U-Net deep learning, and MaxEnt models.
- Utilized spatially de-biased tea occurrence records.
- Employed Random Forest for model validation.
- Projected suitability under CMIP6 climate scenarios (2021-2080).
Main Results:
- Precipitation seasonality and wettest quarter precipitation are key climatic drivers.
- Future warming is projected to shift suitable tea areas southward.
- High-emission scenarios indicate increased spatial fragmentation of suitable areas.
Conclusions:
- Warming trends will alter tea cultivation landscapes, necessitating adaptive strategies.
- The developed framework is transferable to other high-value, climate-sensitive crops.
- Findings support proactive agricultural planning in response to global environmental change.
Related Concept Videos
02:16Light Acquisition
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
01:57Adaptations that Reduce Water Loss
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
01:16What is Climate?
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
02:45Responses to Heat and Cold Stress
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
01:50Global Climate Change
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
02:35Key Elements for Plant Nutrition
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the atmosphere, the...