The Spatial-Temporal Heterogeneity of Understory Light Availability in a Temperate Forest of North China
作者机构：College of Landscape Architecture and ArtHenan Agricultural UniversityZhengzhou450002China College of Life SciencesHenan Agricultural UniversityZhengzhou450002China Departamento de Agronomía-CERZOS(CONICET)Universidad Nacional del SurBahía BlancaBuenos Aires8000Argentina
出 版 物：《Phyton-International Journal of Experimental Botany》 (国际实验植物学杂志（英文）)
年 卷 期：2021年第90卷第6期
页 面：1633-1644页
核心收录：
学科分类：0710[理学-生物学] 0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学]
基 金：This work a contribution to Youth Foundation of Natural Science Foundation of Henan Province(212300410153) The Young Talents Promotion Project of Henan Province(2020HYTP037) Science and Technology Project of Henan Provincial Department of Natural Resources(No.2021-178-9) Basic scientific research expenses of Henan Province(2021JB02014)
主 题：Dominant species forest canopy stand structure forest dynamic monitoring plot
摘 要：The spatial-temporal variation of understory light availability has important influences on species diversity and community ***,the distribution characteristics and influencing factors of understory light availability have not been fully elucidated,especially in temperate deciduous,broad-leaved *** this study,the understory light availability was monitored monthly(May–October)in a temperate deciduous,broad-leaved forest in Henan Province,*** in the light availability among different months and habitat types were statistically analyzed using Kruskal–Wallis method,*** least squares path modeling(PLS-PM)was used to explore the direct and/or indirect effects of stand structure,dominant species and topographic factors on the light *** showed that there were differences in light environments among the four habitat types and during the studied six *** PLS-PM results showed that the stand structure and the dominant species were negatively correlated with the light environment,and the path coefficient values were−0.089(P=0.042)and−0.130(P=0.004),*** result indicated that the understory light availability exhibit a distinct spatial and temporal heterogeneity in temperate deciduous,broad-leaved forest of north *** characteristics of woody plant community,especially the abundance of one of the dominant plant species,were the important factors affecting the understory light availability.
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