Diversity Patterns of Plant Communities along an Elevational Gradient in Arid and Semi-Arid Mountain Ecosystems in China

被引：2

作者：

He, Xinrui ^{[1
]}

Yin, Fan ^{[1
]}

Arif, Muhammad ^{[1
]}

Zheng, Jie ^{[1
,2
]}

Chen, Yangyi ^{[1
]}

Geng, Qianwen ^{[1
]}

Ni, Xilu ^{[3
]}

Li, Changxiao ^{[1
,2
]}

机构：

[1] Southwest Univ, Sch Life Sci, Key Lab Ecoenvironm Three Gorges Reservoir Reg, Chongqing Key Lab Plant Ecol & Resources Res Three, Chongqing 400715, Peoples R China

[2] Southwest Univ, Acad Adv Interdisciplinary Studies, Biol Sci Res Ctr, Chongqing 400715, Peoples R China

[3] Ningxia Univ, Coll Ecol & Environm, Breeding Base State Key Lab Land Degradat & Ecol R, Yinchuan 750021, Peoples R China

来源：

PLANTS-BASEL | 2024年 / 13卷 / 20期

关键词：

arid and semi-arid ecosystem; biodiversity conservation; elevational gradient; vegetation classification; SPECIES-DIVERSITY; ALPINE MEADOW; CLIMATE-CHANGE; CLASSIFICATION; ORDINATION; RICHNESS; PRODUCTIVITY; BIODIVERSITY; ALTITUDE; TIBET;

D O I：

10.3390/plants13202858

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Quantitative classification and ordination are instrumental in improving our understanding of plant community patterns and facilitating effective conservation efforts in national mountain ecosystems worldwide. However, there has been a lack of relevant research focused on arid and semi-arid mountain ecosystems. This study aims to address this gap by investigating the Ningxia Helan Mountain National Nature Reserve (located in Northwest China). We conducted a comprehensive study on the patterns of plant communities and their association with environmental factors across a broad elevation range from 1200 m a.s.l. to 2600 m a.s.l. Our findings revealed the presence of 121 angiosperm species across 41 families, with vegetation classified into six distinct groups through two-way indicator species analysis (TWINSPAN) along the elevational gradient. Notably, the communities of Ulmus, Prunus, and Stipa in the middle elevation range exhibited the highest Shannon-Wiener (SW) and Simpson (SN) diversity indices, and these indices followed a single-peak pattern with increasing elevation. Canonical correspondence analysis (CCA) further revealed six distinct yet interrelated plant communities, revealing elevation (ELE) and the biological aridity index (BK) as the most influential environmental factors influencing plant communities' distribution. This understanding is critically important for biodiversity conservation and the management of ecosystems in arid and semi-arid mountain ecosystems.

引用

页数：17

共 80 条

[1] Patterns of plant communities along vertical gradient in Dhauladhar Mountains in Lesser Himalayas in North-Western India [J].