Study on Classification and Ordination of Vascular Plant Communities in the Black-Necked Crane National Nature Reserve of the Lhasa River Basin

doi:10.11733/j.issn.1007-0435.2026.04.027

Acta Agrestia Sinica ›› 2026, Vol. 34 ›› Issue (4): 1458-1470.DOI: 10.11733/j.issn.1007-0435.2026.04.027

Study on Classification and Ordination of Vascular Plant Communities in the Black-Necked Crane National Nature Reserve of the Lhasa River Basin

FU Ben-yi^1,2,3, MA Ying^2,3,4, LAMU Ren-qing⁵, YANG Xiao-ju^1,2,3, LUO Da-qing^1,2,3, QU Xing-le^1,2,3

1. Institute of Plateau Ecology, Xizang Agricultural and Animal Husbandry University, Nyingchi, Xizang 860000, China;
2. Key Laboratory of Alpine Vegetation Ecological Security of Husbandry University, Nyingchi, Xizang 860000, China;
3. Key Laboratory of Xizang Plateau Forest Ecology of Ministry of Education & National, Nyingchi, Xizang 860000, China;
4. Yanzhou District No. 6 Middle School, Jining City, Shandong Province, Ali, Xizang 27200, China;
5. Ali Ecological and Environmental Monitoring Center of Xizang Autonomous Region, Ali, Xizang 859000, China

Received:2025-05-13 Revised:2025-09-18 Published:2026-04-15

拉萨河流域黑颈鹤国家自然保护区维管植物群落分类与排序研究

付本艺^1,2,3, 马颖^2,3,4, 仁青拉姆⁵, 杨小菊^1,2,3, 罗大庆^1,2,3, 屈兴乐^1,2,3

1. 西藏农牧大学高原生态研究所, 西藏林芝 860000;
2. 西藏自治区高寒植被生态安全重点实验室, 西藏林芝 860000;
3. 西藏高原森林生态教育部重点实验室, 西藏林芝 860000;
4. 山东省济宁市兖州区第六中学, 山东济宁 272000;
5. 西藏自治区阿里生态环境监测中心, 西藏阿里 859000

通讯作者: 屈兴乐，E-mail：1318266529@qq.com
作者简介:付本艺（1999-），男，汉族，硕士研究生，主要从事植物生理学、群落生态学方向研究，E-mail：438524206@qq.com；
基金资助:
西藏农牧大学林学博士点（一期）（533325001）资助；2023年西藏自治区拉萨市、日喀则市生态质量样地生态地面监测（603323087）；第二次青藏高原综合科学考察研究项目（2019QZKK1006）资助

Abstract

Abstract: To clarify the community structure， distribution pattern of wild vascular plants in wetlands of the National Nature Reserve for Black-necked Cranes in the Lhasa River Basin and their relationship with environmental factors， the study conducted field surveys on 23 typical plots in the reserve from 2022 to 2023， using methods such as TWINSPAN classification， CCA ordination， and diversity index analysis， to systematically investigate community type classification， spatial distribution characteristics， environmental driving mechanisms， and the coupling relationship with black-necked crane habitats. Results showed that a total of 114 species of wild vascular plants belonging to 83 genera and 34 families were recorded in the study area， with dicotyledonous herbs as the main components； TWINSPAN classified the communities into 7 types， among which the communities were mainly composed of herbaceous plants， with fewer arbor plants. CCA ordination indicated that longitude， mean annual precipitation ， slope gradient ， and slope aspect were the key environmental factors driving community distribution. Diversity analysis showed that the Shannon-Wiener index （1.31-2.95） and Simpson index （0.37-0.99） were significantly different among communities （P<0.05）， and the Mantel-test confirmed that mean annual precipitation had the most significant impact on the Pielou evenness index and Shannon-Wiener index . Further quantification by RDA analysis showed that longitude， mean annual precipitation， slope aspect， and slope gradient were the core factors regulating community diversity. Among them， the Shannon-Wiener index and Pielou index were positively correlated with mean annual precipitation， and the Simpson index responded significantly to the longitude gradient. The results revealed the adaptation patterns of plateau wetland plant communities to hydrothermal gradients， providing a theoretical basis for the protection of black-necked crane habitats and wetland ecosystem management.

Key words: Black-necked crane national nature reserve, Quantitative classification, Ordination, Community diversity, Environmental factors

摘要： 为明确拉萨河流域黑颈鹤国家自然保护区野生维管植物群落结构、分布格局及其与环境因子的关系，研究于2022—2023年对保护区进行野外调查，采用 TWINSPAN分类、CCA排序、多样性指数分析等方法，系统探讨了群落类型划分、空间分布特征、环境驱动机制及与黑颈鹤栖息地的耦合关系。结果表明，研究区共记录野生维管植物34科83属114种，以双子叶草本植物为主体。TWINSPAN将群落划分为7个类型，其中群落以草本植物构成为主，乔木植物较少。CCA排序显示，经度、年均降水量、坡度和坡向是驱动群落分布的关键环境因子。多样性分析显示，Shannon-Wiener 指数（1.31~2.95）和Simpson指数（0.37~0.99）在群落间差异显著（P<0.05）。Mantel-test检验证实年均降水量对 Pielou 均匀度指数和Shannon-Wiener指数影响最大。RDA分析进一步量化表明，经度、年均降水量、坡向和坡度为调控群落多样性的核心因子，其中Shannon-Wiener指数和Pielou指数与年均降水量相关性较强，Simpson指数对经度梯度响应显著。研究结果揭示了高原湿地植物群落对水热梯度的适应模式，为黑颈鹤栖息地保护及湿地生态系统管理提供了理论依据。

关键词: 黑颈鹤国家自然保护区, 数量分类, 排序, 群落多样性, 环境因子

CLC Number:

S812.6

FU Ben-yi, MA Ying, LAMU Ren-qing, YANG Xiao-ju, LUO Da-qing, QU Xing-le. Study on Classification and Ordination of Vascular Plant Communities in the Black-Necked Crane National Nature Reserve of the Lhasa River Basin[J]. Acta Agrestia Sinica, 2026, 34(4): 1458-1470.

付本艺, 马颖, 仁青拉姆, 杨小菊, 罗大庆, 屈兴乐. 拉萨河流域黑颈鹤国家自然保护区维管植物群落分类与排序研究[J]. 草地学报, 2026, 34(4): 1458-1470.

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Study on Classification and Ordination of Vascular Plant Communities in the Black-Necked Crane National Nature Reserve of the Lhasa River Basin

拉萨河流域黑颈鹤国家自然保护区维管植物群落分类与排序研究

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