干旱区生态环境知识资源中心(Arid): Forest in Karst Mountain Sinkhole of Southeastern China Provides Refugium for the Preservation of Bryophyte Diversity

Arid

DOI	10.5586/asbp.8944
	Forest in Karst Mountain Sinkhole of Southeastern China Provides Refugium for the Preservation of Bryophyte Diversity
	Li, Xiaofang; Zhang, Zhaohui; Wang, Zhihui; Shi, Kuangzheng
通讯作者	Zhang, ZH (corresponding author), Guizhou Normal Univ, Key Lab Informat Syst Mt Area & Protect Ecol Envi, Guiyang 550001, Peoples R China. ; Wang, ZH (corresponding author), Guizhou Normal Univ, Sch Life Sci, Guiyang 550000, Peoples R China.
来源期刊	ACTA SOCIETATIS BOTANICORUM POLONIAE
ISSN	0001-6977
EISSN	2083-9480
出版年	2020
卷号	89 期号:4
英文摘要	The negative landform of sinkholes provides belowground level refugia for a high diversity of forest species compared to the forests on the surface of surrounding karst plateaus in southeastern China. Bryophyte diversity in sinkhole forests is also likely to be high. In this study, bryophytes of an underground forest sinkhole (UFS), and two forests (Forest Karst Mountain 1; FKM1) and (Forest Karst Mountain 2; FKM2) on the surface of the karst plateau were compared to understand the role of the sinkhole forest in the conservation of bryophyte diversity and the relationships between bryophyte diversity, environmental factors, and soil nutrients. Significantly more bryophyte taxa were recorded from the sinkhole forest (71 taxa, 36 genera, 23 families) than those in the forest on the plateau surface, which was the closest to the sinkhole (FKM1; 29 bryophyte taxa, 16 genera, 12 families), and even fewer bryophytes were found in the forest more distant to the sinkhole (FKM2; 22 taxa, 17 genera, eight families). Twenty-four liverwort taxa were collected from the sinkhole forest, two from the closest surface forest (FKM1) and none from the furthest surface forest (FKM2). Ninety-three percent of the bryophytes in karst mountain sinkhole were not found on surface forest. The diversity index trend was as follows: UFS > FKM1 > FKM2, and the evenness index trend was in the opposite direction as follows: UFS < FKM1 < FKM2. The beta diversity showed that the Jaccard index among the three forests was 0-0.25, reflecting a huge difference between the sinkhole forest and the two surface forests. Canonical correspondence analysis showed that light was the most important factor affecting the distribution of bryophytes in the sinkhole forest, while temperature and humidity were key factors for the distribution of bryophytes in the two surface forests. Further, soil parameters, namely, soil organic carbon, total nitrogen, total phosphorus, total potassium, alkalihydrolyzed nitrogen, and available phosphorus changed gradually from UFS to FKM1 and to FKM2. The sinkhole forest, located in a landform with the unique negative topography enclosed by cliffs, and with a complex microenvironment, provides a natural refuge for bryophyte species in areas where forests have been negatively impacted by karst rocky desertification.
英文关键词	negative landform natural refuge complex microenvironment karst rocky desertification
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000626760100004
WOS关键词	ENVIRONMENTAL-FACTORS ; NATURE-RESERVE ; LIFE-FORM ; AVAILABILITY
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348683
作者单位	[Li, Xiaofang; Zhang, Zhaohui; Shi, Kuangzheng] Guizhou Normal Univ, Key Lab Informat Syst Mt Area & Protect Ecol Envi, Guiyang 550001, Peoples R China; [Wang, Zhihui] Guizhou Normal Univ, Sch Life Sci, Guiyang 550000, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaofang,Zhang, Zhaohui,Wang, Zhihui,et al. Forest in Karst Mountain Sinkhole of Southeastern China Provides Refugium for the Preservation of Bryophyte Diversity[J],2020,89(4).
APA	Li, Xiaofang,Zhang, Zhaohui,Wang, Zhihui,&Shi, Kuangzheng.(2020).Forest in Karst Mountain Sinkhole of Southeastern China Provides Refugium for the Preservation of Bryophyte Diversity.ACTA SOCIETATIS BOTANICORUM POLONIAE,89(4).
MLA	Li, Xiaofang,et al."Forest in Karst Mountain Sinkhole of Southeastern China Provides Refugium for the Preservation of Bryophyte Diversity".ACTA SOCIETATIS BOTANICORUM POLONIAE 89.4(2020).