Bryophyte species diversity in seven typical forests of the West Tianmu Mountain in Zhe- jiang, China

doi:10.3724/SP.J.1258.2012.00550

Abstract

Abstract:

Aims Bryophytes are an important component of forest vegetation. Their species diversity is vital to protecting plant resources and ecosystem diversity. Our objective was to explore the diversity and distribution of bryophytes and the relationship between bryophyte diversity and environment factors in seven dominant forest vegetation types (deciduous broad-leaved shrubs, DBS; deciduous broad-leaved forest, DBF; evergreen and deciduous broad-leaved mixed forest, EDF; evergreen broad-leaved forest, EBF; coniferous broad-leaved mixed forest, CBF; coniferous forest, CF; bamboo forest, BF) of West Tianmu Mountain, Zhejiang Province, China.
Methods Thirty-two sites (10 m × 10 m) were established in the seven forest vegetation types. Sixteen plots were selected by systematic sampling in each sampling site. Coverage of floor bryophytes and abundance of epiphytic bryophytes of each site were recorded. Species richness, importance value, diversity index and Sørensen’s similarity index were examined at the different vegetation types.
Important findings Based on collection and identification of a total of 969 specimens, we recorded 142 bryophytes belonging to 82 genera and 41 families, among which were 33 liverworts belonging to 18 genera of 33 families and 109 mosses belonging to 66 genera of 28 families. Hypanceae, Brachytheciaceae and Thuidiaceae were three dominant families. The species richness and diversity of bryophytes in two kinds of mixed forest types (EDF and CBF) were higher than the five pure forest types (DBS, DBF, EBF, CF and BF). EDF had the highest species diversity and CBF had the highest species richness. BF was lowest in both diversity and richness. There was high similarity between environment factors such as neighboring altitudinal forest types, with the highest value between EBF and CF, and the lowest value between DBS and BF. The number of microhabitats showed significant positive correlation with floor bryophyte diversity.

Key words: bryophyte plant, diversity, forest vegetation type, species diversity index, S?rensen similarity index

WANG Dai-Hua, WANG You-Fang, ZUO Qin, LI Min, WU Wen-Ying, HUANG Jian-Hua, ZHAO Ming-Shui. Bryophyte species diversity in seven typical forests of the West Tianmu Mountain in Zhe- jiang, China[J]. Chin J Plant Ecol, 2012, 36(6): 550-559.

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https://www.plant-ecology.com/EN/Y2012/V36/I6/550

Figures/Tables 7

References 37

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编号 No.	植被类型 Forest type	经度 Longitude (E)	纬度 Latitude (N)	海拔 Altitude (m)	坡向 Aspect
1	落叶矮林 DBS	119°25′79′′	30°20′32′′	1 239	W
2	落叶矮林 DBS	119°25′39′′	30°20′40′′	1 310	NW
3	落叶矮林 DBS	119°25′30′′	30°20′53′′	1 462	SE
4	落叶矮林 DBS	119°25′20′′	30°20′58′′	1 484	E
5	落叶阔叶林 DBF	119°26′57′′	30°19′05′′	400	S
6	落叶阔叶林 DBF	119°27′00′′	30°19′26′′	450	SW
7	落叶阔叶林 DBF	119°26′56′′	30°19′24′′	407	W
8	落叶阔叶林 DBF	119°27′01′′	30°19′33′′	510	W
9	落叶阔叶林 DBF	119°27′05′′	30°19′34′′	469	SW
10	落叶阔叶林 DBF	119°26′51′′	30°19′21′′	361	SW
11	常绿-落叶阔叶混交林 EDF	119°54′31′′	30°20′35′′	1 154	W
12	常绿-落叶阔叶混交林 EDF	119°25′59′′	30°20′32′′	1 116	SE
13	常绿-落叶阔叶混交林 EDF	119°26′05′′	30°20′32′′	1 131	NE
14	常绿阔叶林 EBF	119°26′13′′	30°19′54′′	600	N
15	常绿阔叶林 EBF	119°26′09′′	30°20′06′′	709	E
16	常绿阔叶林 EBF	119°26′14′′	30°19′55′′	543	NE
17	针阔混交林 CBF	119°26′34′′	30°19′19′′	349	NW
18	针阔混交林 CBF	119°26′15′′	30°20′33′′	1 099	NE
19	针阔混交林 CBF	119°25′51′′	30°20′25′′	1 072	NE
20	针阔混交林 CBF	119°26′16′′	30°19′51′′	549	NW
21	针阔混交林 CBF	119°26′51′′	30°19′22′′	375	SW
22	针叶林 CF	119°25′47′′	30°20′21′′	1 053	SE
23	针叶林 CF	119°26′21′′	30°19′42′′	461	E
24	针叶林 CF	119°26′28′′	30°19′30′′	391	NE
25	针叶林 CF	119°26′59′′	30°19′26′′	433	SE
26	针叶林 CF	119°26′56′′	30°19′28′′	382	SE
27	针叶林 CF	119°26′51′′	30°19′24′′	361	SW
28	竹林 BF	119°26′24′′	30°19′28′′	428	S
29	竹林 BF	119°26′51′′	30°19′25′′	368	N
30	竹林 BF	119°26′23′′	30°19′37′′	426	E
31	竹林 BF	119°26′26′′	30°19′28′′	453	SE
32	竹林 BF	119°26′25′′	30°19′28′′	441	SW

编号 No.	植被类型 Forest type	经度 Longitude (E)	纬度 Latitude (N)	海拔 Altitude (m)	坡向 Aspect
1	落叶矮林 DBS	119°25′79′′	30°20′32′′	1 239	W
2	落叶矮林 DBS	119°25′39′′	30°20′40′′	1 310	NW
3	落叶矮林 DBS	119°25′30′′	30°20′53′′	1 462	SE
4	落叶矮林 DBS	119°25′20′′	30°20′58′′	1 484	E
5	落叶阔叶林 DBF	119°26′57′′	30°19′05′′	400	S
6	落叶阔叶林 DBF	119°27′00′′	30°19′26′′	450	SW
7	落叶阔叶林 DBF	119°26′56′′	30°19′24′′	407	W
8	落叶阔叶林 DBF	119°27′01′′	30°19′33′′	510	W
9	落叶阔叶林 DBF	119°27′05′′	30°19′34′′	469	SW
10	落叶阔叶林 DBF	119°26′51′′	30°19′21′′	361	SW
11	常绿-落叶阔叶混交林 EDF	119°54′31′′	30°20′35′′	1 154	W
12	常绿-落叶阔叶混交林 EDF	119°25′59′′	30°20′32′′	1 116	SE
13	常绿-落叶阔叶混交林 EDF	119°26′05′′	30°20′32′′	1 131	NE
14	常绿阔叶林 EBF	119°26′13′′	30°19′54′′	600	N
15	常绿阔叶林 EBF	119°26′09′′	30°20′06′′	709	E
16	常绿阔叶林 EBF	119°26′14′′	30°19′55′′	543	NE
17	针阔混交林 CBF	119°26′34′′	30°19′19′′	349	NW
18	针阔混交林 CBF	119°26′15′′	30°20′33′′	1 099	NE
19	针阔混交林 CBF	119°25′51′′	30°20′25′′	1 072	NE
20	针阔混交林 CBF	119°26′16′′	30°19′51′′	549	NW
21	针阔混交林 CBF	119°26′51′′	30°19′22′′	375	SW
22	针叶林 CF	119°25′47′′	30°20′21′′	1 053	SE
23	针叶林 CF	119°26′21′′	30°19′42′′	461	E
24	针叶林 CF	119°26′28′′	30°19′30′′	391	NE
25	针叶林 CF	119°26′59′′	30°19′26′′	433	SE
26	针叶林 CF	119°26′56′′	30°19′28′′	382	SE
27	针叶林 CF	119°26′51′′	30°19′24′′	361	SW
28	竹林 BF	119°26′24′′	30°19′28′′	428	S
29	竹林 BF	119°26′51′′	30°19′25′′	368	N
30	竹林 BF	119°26′23′′	30°19′37′′	426	E
31	竹林 BF	119°26′26′′	30°19′28′′	453	SE
32	竹林 BF	119°26′25′′	30°19′28′′	441	SW

编号 No	科名 Family	属数 Genus number	占总属数的百分数 Percentage of total genera (%)	种数 Species number	占总种数的百分数 Percentage of total species (%)
1	灰藓科 Hypnaceae	8	9.64	14	9.93
2	青藓科 Brachytheciaceae	6	7.23	13	9.22
3	羽藓科 Thuidiaceae	4	4.82	8	5.67
4	曲尾藓科 Dicranaceae	5	6.02	7	4.96
5	凤尾藓科 Fissidentaceae	1	1.20	7	4.96
6	绢藓科 Entodontacae	1	1.20	7	4.96
7	锦藓科 Sematophyllaceae	4	4.82	6	4.26
8	细鳞苔科 Lejeuneaceae	4	4.82	5	3.55
9	牛舌藓科 Anomodontaceae	3	3.61	5	3.55
10	光萼苔科 Porellaceae	2	2.41	5	3.55
	总计 Total	38	45.78	77	54.61

编号 No	科名 Family	属数 Genus number	占总属数的百分数 Percentage of total genera (%)	种数 Species number	占总种数的百分数 Percentage of total species (%)
1	灰藓科 Hypnaceae	8	9.64	14	9.93
2	青藓科 Brachytheciaceae	6	7.23	13	9.22
3	羽藓科 Thuidiaceae	4	4.82	8	5.67
4	曲尾藓科 Dicranaceae	5	6.02	7	4.96
5	凤尾藓科 Fissidentaceae	1	1.20	7	4.96
6	绢藓科 Entodontacae	1	1.20	7	4.96
7	锦藓科 Sematophyllaceae	4	4.82	6	4.26
8	细鳞苔科 Lejeuneaceae	4	4.82	5	3.55
9	牛舌藓科 Anomodontaceae	3	3.61	5	3.55
10	光萼苔科 Porellaceae	2	2.41	5	3.55
	总计 Total	38	45.78	77	54.61

	森林类型 Forest type
	落叶矮林 DBS	落叶阔叶林 DBF	常绿-落叶阔叶混交林 EDF	常绿阔叶林 EBF	针阔混交林 CBF	针叶林 CF	竹林 BF
落叶矮林 DBS		19	15	12	18	12	2
落叶阔叶林 DBF	20.21%		25	23	35	26	9
常绿-落叶阔叶混交林 EDF	15.63%	20.49%		24	33	24	7
常绿阔叶林 EBF	15.79%	22.55%	23.08%		32	27	9
针阔混交林 CBF	17.65%	27.34%	25.38%	29.09%		27	12
针叶林 CF	15.38%	25.00%	22.64%	31.40%	24.11%		10
竹林 BF	3.85%	11.54%	8.75%	15.00%	13.95%	16.13%