Prediction of soil temperatures using artificial intelligence

Soil temperatures at various depths of soil are important in changing environments to understand all properties of soil. This is essential in reaching food sustainability. We developed a novel model to predict soil temperature at both surface and 10 cm depth of soil in Nukus, Uzbekistan.

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Why we did this?

Food security is one of the most important aspects not only to the present world but to the future world. Climate change, increased population, natural disasters, etc. trigger food scarcity, and on average 238 million people are facing food insecurity. This is highlighted among the Sustainable Development Goals under the 2nd as Zero Hunger. Therefore, it is essential to understand the adaptation strategies to rectify or if not minimize the adverse impacts on agricultural food production. Therefore, we thought it would be highly important to predict soil temperatures at the surface and 10 cm depth concerning the changing climatic parameters. 

What we did?

We selected a case study area; Nukus, Uzbekistan, which is the capital of the sovereign Republic of Karakalpakstan within Uzbekistan, and it is the sixth largest city in Uzbekistan. Soil temperature and climatic data were collected from the corresponding authorities in Nukus. The prediction of the surface soil temperature was carried out as the first step and the prediction of the 10 cm depth soil temperature based on the surface temperature was the second step. 

 Eight state-of-the-art machine learning models including XGBoost, CatBoost, LSTM, ANN, Bi-LSTM, Ridge Regression, Lasso Regression, and ElasticNet were utilized in developing prediction models.

What are our results?

Accurate models were developed to predict soil temperature levels at both surface and 10 cm depth for Nukus, Uzbekistan. The model developed to predict temperature levels at 10 cm depth is capable of using climatic parameters and predicted soil surface temperature levels as inputs. Therefore, measuring soil surface temperature is not needed to understand the soil behaviour at 10 cm depth. The following figure showcases the actual versus predicted soil temperatures at the 10 cm depth. 

The developed model can be effectively used in planning applications in reaching sustainability in food production in arid areas like Nukus, Uzbekistan. 

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Soil Science
Physical Sciences > Earth and Environmental Sciences > Environmental Sciences > Soil Science
Soil Physics
Life Sciences > Biological Sciences > Agriculture > Soil Science > Soil Physics

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Deadline: Aug 31, 2024