The special investigation and experiment indicated the cause of tree death resulted from the root-rot atrophy because of a long-term flooding.
通过对比试验，发现树盘长期积水，导致根腐病发生，是国槐死亡的主要原因。
The special investigation and experiment indicated the cause of tree death resulted from the root-rot atrophy because of a long-term flooding.
通过对比试验，发现树盘长期积水，导致根腐病发生，是国槐死亡的主要原因。
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