| 阿尔泰山哈巴河地区不同草地类型物种多样性及VOR指数分析 |
| |
| 引用本文： | 张凯丽,叶茂,何强强,殷锡凯,郭建兴.阿尔泰山哈巴河地区不同草地类型物种多样性及VOR指数分析[J].水土保持学报,2023,37(1):262-271,279. |
| |
| 作者姓名： | 张凯丽 叶茂 何强强 殷锡凯 郭建兴 |
| |
| 作者单位： | 1. 新疆师范大学地理科学与旅游学院, 乌鲁木齐 830054;2. 新疆干旱区湖泊环境与资源重点实验室, 乌鲁木齐 830054 |
| |
| 基金项目： | 阿尔泰山国有林管理局生态监测分析项目(3010010269);NSFC-新疆联合基金项目(U1803245) |
| |
| 摘 要： | 以阿尔泰山哈巴河地区5个林区的4种草地类型为研究对象，分析哈巴河地区5个林区各草地类型的物种多样性变化特征。运用回归分析、相关分析和VOR指数等方法，探讨不同草地类型群落物种组成及多样性的影响因素，对草地生态系统健康状况进行评价。结果表明：(1)在不同的草地类型中，荒漠草原与山地草甸草原、山地草甸间群落的相似性系数在0～0.25,异质性大，山地草原和山地草甸草原间的相似性系数处于0.50～0.75,异质性小。(2)在4种草地类型中，各草地类型的Margalef指数与Simpson指数、Shannon-Wiener指数之间R2均小于0.75,且二次项拟合显示出较大的差异，盖度与生物量均呈极显著相关(p<0.01)。(3)海拔与生物量关系均较差，R2均小于0.40,仅山地草甸的海拔与生物量呈极显著相关(p<0.01),其余均不相关。(4)5个林区总体上9月生物量小于6月，但白哈巴林区的山地草原和山地草甸草原的生物量6月小于9月，呼吉尔特林区的荒漠草原生物量6月小于9月。(5)通过对5个林区平均的生物量与VOR指数做拟合分析，R
|
| 关 键 词： | 草地类型 物种组成 物种多样性 VOR指数 哈巴河地区 |
| 收稿时间： | 2022/5/25 0:00:00 |
Analysis of Species Diversity and VOR Index of Different Grassland Types in the Habahe Region of the Altai Mountains |
| |
| ZHANG Kaili,YE Mao,HE Qiangqiang,YIN Xikai,GUOJianxing.Analysis of Species Diversity and VOR Index of Different Grassland Types in the Habahe Region of the Altai Mountains[J].Journal of Soil and Water Conservation,2023,37(1):262-271,279. |
| |
| Authors: | ZHANG Kaili YE Mao HE Qiangqiang YIN Xikai GUOJianxing |
| |
| Institution: | 1. School of Geography and Tourism, Xinjiang Normal University, Urumqi 830054;2. Xinjiang Laboratory of Lake Environment and Resources in Arid Zone, Urumqi 830054 |
| |
| Abstract: | Taking four grassland types in five forest areas in the Habahe region of the Altai Mountains as the research object, the change characteristics of species diversity of each grassland type in the five forest areas in Habahe region were analyzed. The regression analysis, correlation analysis, and VOR index were used to explore the influencing factors of species composition and diversity of different grassland types, and to evaluate the health status of their grassland ecosystems. The results showed that: (1) Among the different grassland types, the community similarity coefficient between desert steppe and mountain meadow steppe and mountain meadow steppe ranged from 0 to 0.25, and the heterogeneity was the large. The similarity coefficient between mountain steppe and mountain meadow steppe ranges from 0.50 to 0.75, with the small heterogeneity. (2) Among the four grassland types, the R2 between the Margalef index, Simpson index, and Shannon-Wiener index of each grassland type was less than 0.75, and the quadratic term fitting showed a large difference, and the coverage and biomass were extremely significant correlated (p<0.01). (3) The relationship between altitude and biomass was poor, and R2 was less than 0.40. Only the altitude and biomass of mountain meadow were significantly correlated (p<0.01), and the rest were not correlated. (4) Overall, the biomass of the five forest areas in September was less than that in June, but the biomass of the mountain steppe and the mountain meadow steppe in the Baihaba forest area in June was less than that in September, and the biomass of the desert steppe in the Hujierte forest area in June was less than that in September. (5) The average biomass of the five forest areas was fitted with the VOR index, and R2 ranged from 0.118 to 0.712. The health level of grassland ecosystem in 5 forest areas was Naren (0.914) > Baihaba (0.863) > Tielieke (0.848) > Hujierte (0.845) > Qibaqilieke (0.827). The results provide an important basis for understanding the health status of grassland ecosystem in the Habahe region, and are of great significance for understanding the spatial distribution pattern and rational utilization of different grassland resources in the Habahe region of the Altai Mountains. |
| |
| Keywords: | grassland type species composition species diversity VOR index Habahe region |
|
| 点击此处可从《水土保持学报》浏览原始摘要信息 |
| 点击此处可从《水土保持学报》下载免费的PDF全文 |
|
