Impact of Robinia pseudoacacia stand conversion on soil properties and bacterial community composition in Mount Tai, China

Li, Kun; Han, Xu; Ni, Ruiqiang; Shi, Ge; de-Miguel, Sergio; Li, Chuanrong; Shen, Weixing; Zhang, Yikun; Zhang, Xingzhong

doi:10.1186/s40663-021-00296-x

Forest Ecosystems

Table 1 Bulk soil and rhizosphere soil properties (mean ± standard error) of the three types of Robinia pseudoacacia stands following forest conversion from seedling to coppice stands

From: Impact of Robinia pseudoacacia stand conversion on soil properties and bacterial community composition in Mount Tai, China

	Rhizosphere			Bulk soil
	FR	SR	TR	FNR	SNR	TNR
N (%)	0.38 ± 0.03a	0.32 ± 0.01b	0.33 ± 0.01b	0.43 ± 0.02a	0.32 ± 0.01c	0.36 ± 0.02b
C (%)	3.80 ± 0.27a	3.31 ± 0.14b	3.50 ± 0.15b	4.56 ± 0.16a	3.33 ± 0.16c	3.77 ± 0.30b
P (%)	1.58 ± 0.13b	1.88 ± 0.05a	1.63 ± 0.08b	1.66 ± 0.05a	0.93 ± 0.03b	0.85 ± 0.02c
C/N	10.14 ± 0.18b	10.22 ± 0.31b	10.57 ± 0.22a	10.52 ± 0.26a	10.35 ± 0.47a	10.51 ± 0.17a
C/P	2.31 ± 0.30a	1.76 ± 0.11c	2.15 ± 0.18b	2.75 ± 0.10c	3.59 ± 0.24b	4.43 ± 0.28a
N/P	0.24 ± 0.03a	0.17 ± 0.01c	0.20 ± 0.01b	0.26 ± 0.01c	0.35 ± 0.03b	0.42 ± 0.02a
NO₃⁻-N (mg·kg^− 1)	69.06 ± 1.53a	63.29 ± 1.63b	59.50 ± 1.84c	67.20 ± 2.99a	60.52 ± 1.39b	60.71 ± 2.14b
NH₄⁺-N (mg·kg^− 1)	58.60 ± 1.24a	58.81 ± 1.62a	55.20 ± 2.42b	45.99 ± 4.02b	54.25 ± 0.43a	39.41 ± 1.48c
A.N (mg·kg^− 1)	127.66 ± 2.27a	122.10 ± 2.95a	114.70 ± 4.10b	113.19 ± 4.19a	114.77 ± 1.36b	100.12 ± 2.87c
A.P (mg·kg^− 1)	16.93 ± 1.26a	11.18 ± 0.9b	8.35 ± 0.98c	14.41 ± 0.91a	14.24 ± 1.08a	9.60 ± 1.27b
SOM (g·kg^− 1)	64.91 ± 0.92a	62.84 ± 1.29b	50.73 ± 1.05c	61.93 ± 1.78a	51.69 ± 0.58b	46.70 ± 1.47c
Exchangeable Ca (cmol·kg^− 1)	48.74 ± 9.48b	44.63 ± 11.21b	65.83 ± 12.46a	61.78 ± 13.15a	51.01 ± 7.96a	65.26 ± 11.27a
Exchangeable Mg (cmol·kg^− 1)	12.09 ± 1.60b	12.01 ± 1.17ab	13.17 ± 0.75a	11.68 ± 0.93a	12.66 ± 0.78a	13.07 ± 0.74a
Exchangeable K (cmol·kg^− 1)	0.71 ± 0.05ab	0.70 ± 0.03b	0.76 ± 0.05a	0.72 ± 0.05a	0.86 ± 0.28a	0.72 ± 0.07a
Soil moisture (%)				7.66 ± 0.61b	13.28 ± 0.52a	13.95 ± 0.60a
Soil quality index	29.14 ± 0.36a	27.42 ± 0.33b	26.72 ± 0.64b	27.59 ± 0.29a	26.14 ± 0.29b	24.33 ± 0.97b

Mean values ±SE (n = 5) are shown. FR, SR and TR represent the rhizosphere of seedling plantations, first generation coppice plantations and second generation coppice plantations, respectively; FNR, SNR and TNR represent bulk soil of seedling plantations, first generation coppice stands and second generation coppice stands, respectively. N nitrogen, C carbon, P phosphorus, C/N carbon and nitrogen ratio, C/P carbon and phosphorus ratios, N/P nitrogen and phosphorus ratios, NO₃⁻-N nitrate nitrogen, NH₄⁺-N ammonium nitrogen, A. N available nitrogen, A. P available phosphorus, SOM soil organic carbon. Different lowercase letters indicate significant differences in soil properties among the bulk soil or rhizosphere in different R. pseudoacacia plantations (p < 0.05)

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