Table 2 Average lengths and widths of cracks under different roots conditions

From: Extraction of deterioration and analysis of vegetation impact effects on the south palace wall of Weiyang Palace

Roots conditions

Average width (cm)

Average length (m)

Presence of paper mulberry roots

3.68

1.01

Presence of Ziziphus jujuba roots

1.98

1.25

Absence of roots

1.33

0.88

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