Is Cambodia the World's Largest Cashew Producer?

TL;DR

Cambodia is rapidly expanding its cashew industry, ranking among the top global producers, with advanced satellite mapping revealing key areas and emphasizing the need for sustainable practices to balance growth and environmental conservation.

Contribution

This study provides the first detailed land use mapping of Cambodia's cashew plantations using satellite data and deep learning, highlighting the country's global standing and environmental considerations.

Findings

Cambodia ranks in the top five globally for cashew cultivated area.

Significant cashew cultivation is concentrated in Kampong Thom, Kratie, and Ratanak Kiri.

High yields and premium nuts drive Cambodia's cashew industry growth.

Abstract

Cambodia's agricultural landscape is rapidly transforming, particularly in the cashew sector. Despite the country's rapid emergence and ambition to become the largest cashew producer, comprehensive data on plantation areas and the environmental impacts of this expansion are lacking. This study addresses the gap in detailed land use data for cashew plantations in Cambodia and assesses the implications of agricultural advancements. We collected over 80,000 training polygons across Cambodia to train a convolutional neural network using high-resolution optical and SAR satellite data for precise cashew plantation mapping. Our findings indicate that Cambodia ranks among the top five in terms of cultivated area and the top three in global cashew production, driven by high yields. Significant cultivated areas are located in Kampong Thom, Kratie, and Ratanak Kiri provinces. Balancing rapid agricultural expansion with environmental stewardship, particularly forest conservation, is crucial. Cambodia's cashew production is poised for further growth, driven by high-yielding trees and premium nuts. However, sustainable expansion requires integrating agricultural practices with economic and environmental strategies to enhance local value and protect forested areas. Advanced mapping technologies offer comprehensive tools to support these objectives and ensure the sustainable development of Cambodia's cashew industry.