Bryophyte diversity of a grassland mining area and its relationship with soil physical and chemical properties

doi:10.3969/j.issn.1000-5641.2022.01.010

Abstract

Abstract:

In this study, the Shengli Coal Mine—a representative coal mine in the semi-arid grassland of Inner Mongolia—and the adjacent Beizi Temple, Botanical Garden, and Nanshan Reservoir were selected as the study areas. By studying the correlation between the characteristics of the bryophyte community and the physical and chemical properties of the soil, the influence of soil on the distribution of bryophytes was analyzed during the reclamation process. The results showed that there were 4 families, 6 genera, and 7 species of bryophytes in the Shengli mining area. The total coverage of bryophytes in each habitat could be ranked according to the following order: Beizi Temple > Botanical Garden > south dump of the mining area > Nanshan Reservoir > plantation in the mining area > north dump of the mining area. An analysis of the diversity index, moreover, showed that the Shannon-Wiener index at the south dump was the highest, indicating that the species complexity of the moss community at the south dump was relatively high. An analysis of the correlation between the coverage of the bryophyte community and the physical and chemical properties of the soil showed that the soil pH value, silt content, sand content, and gravel content all had significant effects on the distribution of bryophytes. Multivariate analysis of the bryophyte community structure and soil physical and chemical properties showed that the differences in bryophyte community structure between different study areas was related to the cumulative influence of environmental factors.

Key words: semi-arid area, coal mining area, bryophytes, diversity, soil physical and chemical nature

CLC Number:

Q948

Chao FENG, Yuchen GAN, Xiao HE, Shaogang LEI, Wei CHENG, Jiu HUANG, Jin KOU. Bryophyte diversity of a grassland mining area and its relationship with soil physical and chemical properties[J]. Journal of East China Normal University(Natural Science), 2022, 2022(1): 76-84.

Figures/Tables 7

Fig.1

Table 1

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Fig.2

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科名	属名	种名
牛毛藓科 Ditrichaceae	角齿藓属 Ceratodon	角齿藓 Ceratodon purpureus (Hedw.) Brid.
真藓科 Bryaceae	真藓属 Bryum	真藓 Bryum argenteum Hedw.
真藓科 Bryaceae		垂蒴真藓 Bryum uliginosum (Brid) Bruch & Schimp
葫芦藓科 Funariaceae	葫芦藓属 Funaria	葫芦藓 Funaria hygrometrica Hedw.
丛藓科 Pottiaceae	对齿藓属 Didymodon	土生对齿藓 Didymodon vinealis (Brid.) Zand.
	盐土藓属 Pterygoneueum	盐土藓 Pterygoneurum subsessile (Brid.) Jur.
	扭口藓属 Barbula	扭口藓 Barbula unguiculata Hedw.

干扰强度	样地	苔藓总盖度/%	重要值
干扰强度	样地	苔藓总盖度/%	真藓	垂蒴真藓	土生对齿藓	角齿藓	盐土藓	葫芦藓	扭口藓
重度干扰	矿区南排	27.65	0.232	0.108	0.113	0.294	0.153	0.092	0.008
重度干扰	矿区北排	0	0	0	0	0	0	0	0
中度干扰	人工林	17.70	0.480	0.124	0	0.121	0.111	0.165	0
轻度干扰	植物园	62.00	0	0	1.000	0	0	0	0
	贝子庙	65.00	0	0	1.000	0	0	0	0
	水库	20.00	0	0	1.000	0	0	0	0

环境因子	pH	SWC	OP/(mg·kg^–1)	石砾/%	沙粒/%	粉粒/%	黏粒/%
矿区南排	7.584 ± 0.081b	0.032 ± 0.009a	0.013 ± 0.001c	1.294 ± 1.253a	76.374 ± 2.970b	22.217 ± 3.818b	0.017 ± 0.009b
矿区北排	7.703 ± 0.044a	0.023 ± 0.014b	0.013 ± 0.001c	1.905 ± 0.508a	81.158 ± 3.182a	16.674 ± 3.047c	0.013 ± 0.005b
人工林	7.674 ± 0.067ab	0.017 ± 0.002b	0.022 ± 0.002a	0.813 ± 0.785a	68.657 ± 2.013c	30.490 ± 2.742a	0.037 ± 0.006a
其余地区	7.644 ± 0.104ab	0.016 ± 0.007b	0.015 ± 0.002b	0.587 ± 0.849a	74.733 ± 7.410b	24.653 ± 8.223ab	0.017 ± 0.007b

	pH	OP	SWC	黏粒	粉粒	沙粒	石砾	苔藓盖度
pH	1
OP	0.109	1
SWC	–0.209	–0.283	1
黏粒	–0.097	0.550**	–0.201	1
粉粒	–0.252	0.543**	–0.212	0.574^**	1
沙粒	0.225	–0.577**	0.224	–0.596^**	–0.975^**	1
石砾	0.229	–0.204	0.164	–0.264	–0.686^**	0.531^**	1
苔藓盖度	–0.335*	0.021	0.092	0.265	0.440^**	–0.379^*	–0.455^**	1

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