摘要
高速公路边坡生境特殊,其植物群落稳定性直接影响边坡的稳定性。为了探究恢复时间超过20年的公路边坡植物群落稳定性,本研究以京港澳高速公路郑新段边坡10种典型植物群落为对象,采用隶属函数法对群落生产力、土壤肥力、植物群落物种多样性3类指标共13个因子进行分析,评价植物群落稳定性。结果表明,物种多样性指标最高的是原堤构树群落,土壤肥力指标最高的是关堤构树群落,生物量指标最高的是张堤榆树+紫穗槐群落;10种植物群落稳定性由强到弱排序为关堤构树(Broussonetia payrifera)>关堤榆树(Ulmus pumila)+紫穗槐(Amorpha fruticosa)>张堤紫穗槐(A. fruticosa)+杠柳(Periploca sepium)>张堤榆树(U. pumila)+紫穗槐(A. fruticosa)>张堤构树(B. payrifera)+紫穗槐(A. fruticosa)>原堤构树(B. payrifera)=原堤狗尾草(Setaria viridis)+紫穗槐(A. fruticosa)>关堤紫穗槐(A. fruticosa)+黄花篙(Artemisia annua)>原堤葎草(Humulus scandens)+构树(B. payrifera)>张堤紫穗槐(A.fruticosa);在稳定性排序较高的3个群落中,生长有乔木的植物群落稳定性相对较高,群落结构为灌木+草本的植物群落均含有紫穗槐,这些群落中灌木层多样性高的稳定性相对较高。
The habitat of highway slope is special, and the vegetation community plays a key role in slope stability. It is necessary to know the stability of the vegetation community on highway slope that have recovered for more than 20 years and provide a theoretical basis for slope landscape improvement. Ten typical vegetation communities on the Zheng-Xin section of the Beijing-Hong Kong-Macao highway were used as research objects. Three types of indicators, community productivity, soil fertility, and vegetation community species diversity, which included 13 factors, were analyzed using the membership function method. The results showed that the highest species diversity index was in Yuandi B. payrifera, the highest biomass index was in Guandi B. payrifera, and the Zhangdi U. pumila + A. fruticosa had the highest biomass index.The order of stability of the vegetation communities was Guandi B. payrifera > Guandi U. pumila + A. fruticosa > Zhangdi A. fruticosa + P. sepium > Zhangdi U. pumila + A. fruticosa > Zhangdi B. payrifera + A. fruticosa > Yuandi B. payrifera =Yuandi S. viridis + A. fruticosa > Yuandi H. scandens + B. payrifera > Guandi A. fruticosa + A. annua > Zhangdi A.fruticosa. The results show that the vegetation communities that contain arbor have high stability in the three vegetation communities with a higher stability order. A. fruticosa exists in every vegetation community where the community structure is shrub + herb, and the higher the diversity of the shrub layer, the higher its stability.
作者
曹娓
郭佳月
武小栖
肖玉哲
朱牛牛
郭璟
马杰
宋利利
CAO Wei;GUO Jiayue;WU Xiaoqi;XIAO Yuzhe;ZHU Niuniu;GUO Jing;MA Jie;SONG Lili(Henan Institute of Science and Technology School of Horticulture and Landscape Architecture,Xinxiang 453003,He’nan,China;Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement,Xinxiang 453003,He’nan,China;Gansu Yongjing Industrial Park Management Committee,Yongjing 731600,Gansu,China;Henan Transport Investiment Group Co.,LTD Xinxiang Brangch,Xinxiang 45000,He’nan,China)
出处
《草业科学》
CAS
CSCD
北大核心
2022年第10期2074-2082,共9页
Pratacultural Science
基金
国家自然科学基金(41901237)
河南省科技攻关项目(222102320133和212102310226)
2022年度河南省留学人员科研择优资助项目(2022-0001226)。
关键词
特殊生境
高速公路
边坡
植物群落稳定性
隶属函数法
边坡恢复
人工植物群落
special habitat
highway
slope
vegetation community stability
membership function method
slope restoration
artificial vegetation community
