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# Study finds conservation farm policies reduced global cropland degradation

Publication Date: 2026-05-26T13:30:00-04:00
Last Updated: 2026-05-26T06:49:46-04:00

Author: Timothy Bueno (https://www.fertilizerdaily.com/author/timbueno/)

Categories: [AgTech &amp; Research](https://www.fertilizerdaily.com/agtech-and-research/), [Sustainability](https://www.fertilizerdaily.com/sustainability/)

![global warming. Earth with thermometer](https://www.fertilizerdaily.com/wp-content/uploads/2026/05/global-warming-earth-with-thermometer-stockpack-istock-scaled.jpg)

Satellite analysis covering 83 million cropland measurements showed government-backed conservation programs improved soil and land conditions worldwide between 2001 and 2019.

Government conservation-focused agricultural policies have measurably reduced cropland degradation worldwide over the past two decades, according to a [new study published in Nature Food](https://www.nature.com/articles/s43016-026-01359-4) by researchers from the University of Bonn and partner institutions.

The researchers analyzed satellite remote-sensing data covering roughly 83 million cropland condition measurements collected between 2001 and 2019 and linked the findings to a database of approximately 4,700 national agricultural policies. Using two quasi-experimental evaluation approaches — difference in discontinuities and difference in differences — the study concluded that conservation-oriented farm policies improved global cropland condition by an average of 2% to 5%.

The study found wide variation in results between countries, with impacts ranging from minimal gains in some nations to improvements exceeding 20% in others. According to the authors, governance quality and policy funding levels were the strongest factors influencing outcomes, with well-funded programs in countries with stronger institutions consistently producing larger improvements.

Among the policy categories assessed, conservation payment programs and soil and land-use regulations delivered the strongest results. Each additional policy in those categories improved cropland condition by an estimated 0.8 to 0.9 percentage points, marking one of the first global-scale attempts to quantify the causal effects of conservation policies on agricultural land quality rather than relying on correlation-based analysis.

The findings suggest that expanding direct-payment programs for conservation practices such as cover cropping, reduced tillage and buffer strips could provide measurable long-term benefits for soil quality and agricultural productivity. The authors added that scaling up well-designed programs in countries with weaker governance structures could generate significantly larger gains than those currently observed.

Sources: [Nature Food](https://www.nature.com/natfood/), [University of Bonn](https://www.uni-bonn.de/)

Tags: [agricultural research](https://www.fertilizerdaily.com/tag/agricultural-research/), [agriculture](https://www.fertilizerdaily.com/tag/agriculture/), [cropland degradation](https://www.fertilizerdaily.com/tag/cropland-degradation/), [ecology](https://www.fertilizerdaily.com/tag/ecology/), [research](https://www.fertilizerdaily.com/tag/research/), [Science](https://www.fertilizerdaily.com/tag/science/), [soil health](https://www.fertilizerdaily.com/tag/soil-health/), [study](https://www.fertilizerdaily.com/tag/study/), [sustainable agriculture](https://www.fertilizerdaily.com/tag/sustainable-agriculture/)

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