Subjects: Biology >> Botany >> Applied botany submitted time 2023-08-04 Cooperative journals: 《广西植物》
Abstract： Pseudolarix amabilis is one of the most internationally influential ancient relict plants in China, and it faces a multitude of threats, including habitat fragmentation, population isolation, and declining numbers. Fortunately, the Village Fengshui forests, sacred forests protected by Fengshui culture, has emerged as a potential refuge for the natural population of P. amabilis.Nonetheless, the underlying mechanisms by which the Village Fengshui forests safeguards the natural population of P. amabilis warrant in-depth exploration. To address this research gap, this study employed rigorous field investigations and community interviews to comprehensively assess the recruitment status, conservation behaviors, and extent of disturbances for the natural population of P. amabilis. Moreover, we selected the P. amabilis population in Linjiatang as a representative case study to elucidate the protective and management paradigm of P. amabilis Village Fengshui forests. The results were as follows：(1) The diameter at breast height (DBH) structure of P. amabilis in the Village Fengshui forests exhibited continuity, and the seedling density was higher compared to other habitat types. (2) The Village Fengshui forests effectiveness in protecting the natural population of P. amabilis can be attributed to the Fengshui and taboo culture associated with Shuikou forest (Village Fengshui forests near water sources), cemetery forest, and Yangji tree (heritage tree near residential houses). (3) The development of rural tourism has further contributed to the preservation of P. amabilis Village Fengshui forests. In conclusion, the protection and management approach based on Fengshui and taboo cultures in Village Fengshui forests presents an effective paradigm for safeguarding the natural population of P.amabilis.
Subjects: Biology >> Botany >> Applied botany submitted time 2021-07-20 Cooperative journals: 《广西植物》
Abstract： To explore the impact of Chimonobambusa utilis management on species diversity and dominant populations structure of Castanopsis platyacantha community in Jinfo Mountain, the natural and the managed community of Castanopsis platyacantha in Jinfo Mountain were used as the research object to analyze species composition characteristics, species diversity and dominant populations structure in two communities. The results were as follows: (1) A total of 84 vascular plants in the plots were found, belonging to 40 families and 63 genera, dominated by Lauraceae, Rosaceae, Fagaceae and Theaceae; Castanopsis platyacantha was the dominant species in the community, Schima sinensis and Lithocarpus henryi were the subordinates and Chimonobambusa utilis was the dominant species in the shrub layer, which the species composition of Castanopsis platyacantha community in Jinfo Mountain was similar to other subtropical regions. (2) The species richness of the shrub layer of the managed community was significantly lower than that of the natural community, the Shannon-wiener index and Pielou index of the herb layer was significantly lower than that of the natural community. (3) Dominant tree species Castanopsis platyacantha and Lithocarpus henryi in the natural community were of stable populations, but those were of declining populations in the managed community, and Schima sinensis in two communities appeared to be in decline. (4) The ratio of total sprouts to total individuals, number of multi-stemmed individuals/number of all individuals and seedling relative dominance value of Castanopsis platyacantha, Schima sinensis and Lithocarpus henryi in the natural community were higher than in the management community. In conclusion, the Chimonobambusa utilis management have a negative impact on the species diversity with the strongest on the shrub and herb layers of Castanopsis platyacantha community in Jinfo Mountain, indicating managed activities significantly affect the renewal and maintenance of the dominant species in Castanopsis platyacantha community.
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