新疆昌吉州耕地开垦轨迹对土壤肥力变化的影响

许咏梅, 周黎明, 张兆彤

Effect of cultivated land reclamation tracks on soil fertility changes in Changji Prefecture, Xinjiang

XU Yongmei, ZHOU Liming, ZHANG Zhaotong

图6 1980—2018年不同耕作年限的土壤肥力指标含量变化值

Fig. 6 Change of soil nutrient contents with different cultivation years between 1980 and 2018