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Related Experiment Video

Updated: Aug 1, 2025

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

Published on: October 16, 2018

Landscape complexity and US crop production.

Katherine S Nelson¹, Emily K Burchfield²

¹Department of Geography and Geospatial Sciences, Kansas State University, Manhattan, KS, USA. ksnelson@ksu.edu.

|April 28, 2023

Summary

This summary is machine-generated.

Increasing landscape complexity and landcover diversity can boost crop yields for corn and wheat by over 20%. This approach enhances agricultural productivity without further land expansion or intensification.

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Area of Science:

Agricultural Science
Ecology
Environmental Science

Background:

Agricultural expansion and intensification simplify landscapes, negatively impacting biodiversity and ecosystem services.
Field-scale studies indicate landcover complexity can enhance crop productivity, but landscape-scale interactions are less understood.

Purpose of the Study:

To evaluate the relationship between landscape complexity and crop yields at the county level in the conterminous United States.
To determine how landcover diversity and arrangement influence crop productivity.

Main Methods:

Analysis of county-level data on landscape complexity and crop yields (corn and wheat) from 2008 to 2018.
Statistical evaluation of the association between landcover categories, their arrangement, and yield variations.

Main Results:

Landcover diversity, rather than arrangement, showed a stronger positive correlation with crop yields.
Increased landcover diversity was linked to yield increases exceeding 10% for corn and wheat.
Landscapes with moderate complexity and high diversity demonstrated yield increases of over 20% for corn and wheat.

Conclusions:

Enhancing landcover complexity and diversity offers a viable strategy to improve crop productivity.
This approach can increase yields without necessitating further agricultural extensification or intensification.
Findings suggest landscape management can support sustainable agricultural production.