Stability characteristics of different artificial forest communities in rocky desertification areas of northwest Hubei

doi:10.14088/j.cnki.issn0439-8114.2025.04.023

Abstract

Abstract: Taking the artificial forest ecosystem in the rocky desertification area of northwest Hubei as the research object, the stability characteristics of different artificial forest communities were analyzed to provide support for the selection of tree species and management techniques for ecological restoration of rocky desertification in Danjiangkou reservoir area. Three main types of artificial forests were selected in the rocky desertification area of northwestern Hubei, and the membership function method in fuzzy mathematics was applied to comprehensively evaluate community stability from aspects such as vegetation structure, species diversity, renewal potential, forest productivity, and soil fertility. The results showed that, the species richness of artificial forests in rocky desertification areas was generally low, with 7~16 species of woody plants and 4~7 species of herbaceous plants. The population renewal potential of Quercus variabilis artificial young forest was 36.98%, and the population renewal potential of Pinus massoniana near mature forest was 28.79%, significantly higher than other land types. The mean annual biomass of the tree layer in the young Quercus variabilis forest was the highest, significantly exceeding that in the middle-aged Quercus variabilis forest and the nearly mature Pinus massoniana forest by 41.09% and 71.67%, respectively. The soil fertility was mainly manifested as Pinus massoniana near mature forest and Quercus variabilis middle-aged forest>Quercus variabilis young forest>Platycladus orientalis>secondary shrub forest. The stability of the communities in the middle-aged Quercus variabilis forest and the near mature Pinus massoniana forest was higher than that in the young Quercus variabilis forest and significantly higher than that in the artificial Platycladus orientalis forest. There was no significant difference in the stability of the communities between the middle-aged Quercus variabilis forest and the near mature Pinus massoniana forest.

Key words: rocky desertification area, plantation, community, stability, Danjiangkou reservoir area

CLC Number:

S727.22

YANG Jia-wei, DAI Xue, LAN Zhu, TANG Zhi-qiang, LIU Xue-quan, WANG Xiao-rong, FU Tian, YANG An. Stability characteristics of different artificial forest communities in rocky desertification areas of northwest Hubei[J]. HUBEI AGRICULTURAL SCIENCES, 2025, 64(4): 130-136.

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