The design method for rainwater harvesting terrace project in hillside field is proposed by following the balance principle of rainfall runoff and the theory for utilizing the accumulated rainfall.
本文遵循坡地水量平衡原理和雨水叠加利用理论，提出了小流域坡耕地集流梯田工程的设计方法。
Soil erosion is greatly affected by artificial interference and farming intensity. The amount of soil erosion in hillside field system increases 20 times from natural protection to crop cultivation.
土壤流失量受人为干预、耕作强度的影响很大，坡地从自然保护到作物栽培，系统的土壤流失量提高20倍。
Ethnic Yi women hoe a field to plant mulberry on a hillside on the outskirts of Kaiyuan in Yunan.
云南开元市郊，彝族妇女在山坡上锄地种桑树。
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