三峡库区坡耕地粮经果复合垄作技术效益评价

Agro-forestry Technique of Slope Croplandin the Three Gorges Reservoir

坡耕地水土流失对三峡库区生态环境和农业可持续性发展构成双重压力。以聚土垄作与农林复合为基础,组装坡耕地粮经果复合垄作技术。结果表明:该技术不仅培肥土壤,增加土壤水有效性,减少水土流失,而且显著提高土地生产力,发挥了较好的立体农业生态经济效益,为三峡库区坡耕地的利用与保护提供了技术支撑。

Soil losses of slope cropland are serious problems on both ecoenviroment and sustainable agricultural development in the Three Gorges Reservoir. Soil conservation measures including contour tillage of wide ridge and furrow covering and agroforesty formed vertical agricultural structure of slope cropland. The results showed that this technique had good ecological and economical effects, could improve the soil fertility, increase the soil effectivewater content, protect the soil and promot the land productivity. 