西湖自然保护区地下水埋深对草本植物群落的影响  

Influence of Groundwater Burial Depth on Herbal Communities in West Lake Nature Reserve

作　　者：王海 赵洪民 陈冠光 WANG Hai;ZHAO Hongmin;CHEN Guanguang(Gansu Dunhuang Xihu National Natural Reserve Management and Conservation Center,Dunhuang Gansu 736200,China;Gansu Ecological Resources Monitoring Center,Gansu Forestry Survey and Planning institute,Lanzhou 730020,China;Forestry College of Shanxi Agricultural University,Taigu Shanxi 030801,China)

机构地区：[1]甘肃敦煌西湖国家级自然保护区管护中心,甘肃敦煌736200 [2]甘肃省生态资源监测中心甘肃省林业调查规划院,甘肃兰州730020 [3]山西农业大学林学院,山西太谷030801

出　　处：《甘肃林业科技》2024年第3期97-101,共5页Journal of Gansu Forestry Science and Technology

基　　金：山西农业大学博士科研启动项目“2021BQ106”;山西省博士毕业生来晋奖励项目“SXBYKY2022016”。

摘　　要：地下水不仅是植物生长所需的重要水源,也是维持生态平衡的关键因素。本研究聚焦敦煌西湖国家级自然保护区地下水位变化对草本植物群落结构和特征的影响,采用线性拟合和单因素分析,对2科11属12种草本植物在不同地下水埋深分布特点进行了调查分析。研究结果显示,随着地下水埋深增加,植物群落的覆盖度明显减少,而植物的高度则先增加后减少,地下水埋深约3 m时,植物的高度在埋深区间内没有显著差异;物种的丰富度随着地下水埋深增加而呈下降趋势。本研究揭示了该地区草本植物群落特征与地下水埋深的关系,对保护区植被管理和保护具有重要意义。Groundwater is not only an important water source for plant growth,but also a key factor in maintaining ecological balance.The study focused on the effects of groundwater level changes on herbaceous community structure and characteristics in Dunhuang West Lake National Nature Reserve.We used linear fitting and single-factor analysis methods to investigate the distribution characteristics of 12 herbs in 11 genera of 2 families under different groundwater depth conditions.The results showed that the coverage of plant communities is significantly decreasing with the increase of groundwater burial depth,while the height of plants increases first and then decreases.When the groundwater burial depth is about 3 m,the height of the plant is not significantly different in the burial depth range.The species richness decreases with the increase of groundwater burial depth.This study revealed the relationship between the characteristics of herbal flora and the depth of groundwater burial in this area,which is of great significance to the management and protection of vegetation in the protected area.

关 键 词：地下水埋深 物种组成 群落特征 自然保护区 

分 类 号：Q948.8[生物学—植物学]