1. Introduction
The success of maintaining or enhancing soil quality depends on our understanding of how the soil responds to agricultural land use. Concern about soil quality is not limited to agricultural scientists, natural resource managers, and policymakers, but also farmers have a vested interest in soil quality [1] and [2]. A growing number of ethnopedological studies on local soil knowledge have been published over the last two decades, demonstrating an increased recognition of farmers’ knowledge offering insight into soil quality, which can guide future research to develop sustainable land use (e.g., [3]). Yet, its use is often limited due to general lack of understanding of local knowledge and how it can be explored [4], and to a subjective sense of inequity between formal science and farmers’ knowledge [5].