TY - JOUR
T1 - 秦岭北麓典型栓皮栎天然次生林群落结构与物种组成
AU - Zhao, Liang
AU - Yang, Zhichun
AU - Zhou, Juanhua
AU - Wang, Guoqiang
AU - Yin, Qiulong
AU - Zhao, Jin
AU - Qi, Guang
AU - Yuan, Zuoqiang
N1 - Publisher Copyright:
© 2023 Editorial Board of Chinese Journal of Applied Ecology. All rights reserved.
PY - 2023/12/1
Y1 - 2023/12/1
N2 - We investigated species composition and community structure of a typical Quercus variabilis natural secondary forest in the northern foothills of the Qinling Mountains, within the dynamic monitoring plot of deciduous broad-leaved forest at the Louguantai experimental forest farm in Zhouzhi County, Shaanxi Province. The results showed that there were 3162 individual woody plants with diameter at breast height ≥1 cm in the plot, which were belonged to 42 species, 36 genera, and 25 families. The community genus’ s areal type was dominated by the temperate component, which accounted for 44.4%, and followed by the tropical component. The community was dominated by several tree species. The top three species with respect to importance value were Q. variabilis, Pinus tabuliformis, and Quercus aliena, with the sum of their importance value being 64.7%. The average DBH of all woody plants was 7.58 cm. The distribution of all individuals and dominant species in the tree layer was approximately normal, with more medium-size individuals. The community structure was stable. The community was poorly renewed, with a trend of population decline. Biodiversity indices varied considerably among different plots, being lower than those of subtropical broad-leaved evergreen forests. There was a significant correlation between community species distribution and environmental factors. Soil and topography explained 42.4% of the variation in community distribution. Altitude and soil alkali hydrolysable nitrogen had a significant effect on community distribution. Altitude, soil total phosphorus, and organic matter content significantly affected the species diversity of Q. variabilis communities. The stronger adaptability of Q. variabilis populations allowed them to become dominant in low-nutrient environments, which limited species diversity in the community.
AB - We investigated species composition and community structure of a typical Quercus variabilis natural secondary forest in the northern foothills of the Qinling Mountains, within the dynamic monitoring plot of deciduous broad-leaved forest at the Louguantai experimental forest farm in Zhouzhi County, Shaanxi Province. The results showed that there were 3162 individual woody plants with diameter at breast height ≥1 cm in the plot, which were belonged to 42 species, 36 genera, and 25 families. The community genus’ s areal type was dominated by the temperate component, which accounted for 44.4%, and followed by the tropical component. The community was dominated by several tree species. The top three species with respect to importance value were Q. variabilis, Pinus tabuliformis, and Quercus aliena, with the sum of their importance value being 64.7%. The average DBH of all woody plants was 7.58 cm. The distribution of all individuals and dominant species in the tree layer was approximately normal, with more medium-size individuals. The community structure was stable. The community was poorly renewed, with a trend of population decline. Biodiversity indices varied considerably among different plots, being lower than those of subtropical broad-leaved evergreen forests. There was a significant correlation between community species distribution and environmental factors. Soil and topography explained 42.4% of the variation in community distribution. Altitude and soil alkali hydrolysable nitrogen had a significant effect on community distribution. Altitude, soil total phosphorus, and organic matter content significantly affected the species diversity of Q. variabilis communities. The stronger adaptability of Q. variabilis populations allowed them to become dominant in low-nutrient environments, which limited species diversity in the community.
KW - community structure
KW - natural secondary forest
KW - Qinling Mountains
KW - Quercus variabilis
KW - species composition
KW - species diversity
UR - http://www.scopus.com/inward/record.url?scp=85181530514&partnerID=8YFLogxK
U2 - 10.13287/j.1001-9332.202312.001
DO - 10.13287/j.1001-9332.202312.001
M3 - 文章
C2 - 38511359
AN - SCOPUS:85181530514
SN - 1001-9332
VL - 34
SP - 3214
EP - 3222
JO - Ying yong sheng tai xue bao = The journal of applied ecology
JF - Ying yong sheng tai xue bao = The journal of applied ecology
IS - 12
ER -