紫色土坡耕地耕层质量障碍特征

宋鸽¹,史东梅¹,曾小英²,蒋光毅³,江娜¹,叶青¹

Quality Barrier Characteristics of Cultivated Layer for Sloping Farmland in Purple Hilly Region

Ge SONG¹,DongMei SHI¹,XiaoYing ZENG²,GuangYi JIANG³,Na JIANG¹,Qing YE¹

图3. 不同地力等级坡耕地土壤质量指数变化特征

Fig. 3. Variation characteristics of soil quality index of sloping farmland with different productivity grades of cultivated land