山西大学学报（自然科学版）2024，Vol.47Issue(3)：637-646,10.DOI:10.13451/j.sxu.ns.2024008
太行山南段火烧迹地不同恢复期草本群落多样性研究
Diversity of the Herb Communities at Different Recovery Stage in the Burned Areas of Southern Taihang Mountains,Shanxi
摘要
Abstract
The herbaceous plant communities in different recovery periods of burned areas in the southern section of Taihang Moun-tain,Shanxi,were studied by species diversity,classification and ordination.The results showed that:(1)With the increase of vegeta-tion recovery period in the burned areas,the numbers of families from sample 1 to sample 5 were 27,25,27,31 and 18,the numbers of genera from sample 1 to sample 5 were 70,65,67,79 and 38,and the numbers of species from sample 1 to sample 5 were 79,89,85,99 and 50.(2)In terms of the composition structure of families,genera and species,Asteraceae,Fabaceae,and Poaceae are the dominant families,Artemisia,Viola,and Potentilla are the dominant genus,and Carex lanceolata,Achnatherum pekinense and Chry-santhemum Chanetii are the main dominant species.(3)With the succession of communities,species richness,Shannon-Wiener in-dex and Simpson index showed a trend of increasing firstly and then of decreasing.Their peaks were(10.70±3.38),(2.09±0.39),(0.84±0.07)in 9 years recovery,respectively.The Pielou uniformity index peaked(0.91±0.05)after 8 years recovery.(4)The herba-ceous plant communities were divided into 4 grades and 8 groups by Two-way Indications Species Analysis(TWINSPAN),includ-ing Ass.Achnatherum pekinense+Carex lanceolata+Chrysanthemum chanetiiassociation,Ass.Achnatherum pekinense+Carex lanceolata+Artemisia stechmannianaassociation,Ass.Carex lanceolata+Artemisia stechmanniana+Chrysanthemum chanetiias-sociation,Ass.Chrysanthemum chanetii+Carex lanceolata+Lespedeza cuneataassociation,Ass.Carex lanceolata+Chrysanthe-mum chanetii+Melilotus officinalisassociation,Ass.Carex lanceolata+Deyeuxia pyramidalis+Chrysanthemum chanetii associa-tion,Ass.Carex lanceolata+Chrysanthemum chanetii+Erodium stephanianumassociation and Ass.Carex lanceolata+Astragalus laxmanniiassociation.(5)The results of Detrended Correspondence Analysis(DCA)ordination showed that the slope aspect and slope position were the main environmental factors affecting the distribution of herbaceous plant communities in the burned area of the southern Taihang Mountains.关键词
火烧迹地/物种组成/物种多样性/数量分类/DCA排序Key words
burned area/species composition/species diversity/quantitative classification/DCA ordination分类
农业科技引用本文复制引用
林荣木,武帅楷,金山,燕树杰,郝嘉鑫,张桂萍..太行山南段火烧迹地不同恢复期草本群落多样性研究[J].山西大学学报（自然科学版）,2024,47(3):637-646,10.基金项目
山西省1331重点学科建设项目(1331KSC) （1331KSC）
山西省重点学科建设项目(FSKSC) （FSKSC）
