文献类型：期刊文献

英文题名：Thinning and tending could enhance the understory regeneration potential of seed bank during the subtropical pine forest restoration

作者：Luo, Chao[1] Li, Sheng[1] Jiao, Jiejie[2] Wang, Jia[1] Chen, Zixi[1] Zhou, Yufei[1,3]

第一作者：Luo, Chao

通信作者：Li, S[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Peoples R China;[2]Zhejiang Acad Forestry, Hangzhou 310023, Peoples R China;[3]Southwest Forestry Univ, Coll Soil & Water Conservat, Kunming 650224, Peoples R China

年份：2025

卷号：587

外文期刊名：FOREST ECOLOGY AND MANAGEMENT

收录：;EI(收录号：20251718293586);Scopus(收录号：2-s2.0-105003201690);WOS:【SCI-EXPANDED(收录号:WOS:001480984700001)】；

基金：This study was supported by Zhejiang Forestry Bureau-Academy Collaboration of Forestry Science and Technology Project (2025SY05) and World Bank Loan Project (8856-CN-CLJY1) . We appreciate the staff of the Chun'an County Forestry Bureau for the help during the field survey. We also thank the editors and anonymous reviewers for their constructive suggestions.

语种：英文

外文关键词：Pinus massoniana forest; Thinning intensity; Understory vegetation; Seed bank; Natural regeneration

摘要：Forest restoration is a global priority and the challenge of how to promote the restoration of secondary forests has become a prominent research focus. Compared to active restoration, promoting natural regeneration of dominant species contribute both in sustainability and biodiversity. In the context of coniferous forest conversion, the effect of forest assisted regeneration approaches on natural regeneration potential, especially the role of seed bank, is worth further investigation. We conducted a field study to investigate the difference and influence factor of understory vegetation and seed bank between different Pinus massoniana forest stands formed after thinning and tending measures (shrub cutting and weeding). Furthermore, we explored the effect mechanism of thinning and tending on their density and richness. The results showed that soil (moisture, bulk density and pH), litter (thickness and production) and canopy closure were the crucial factors affecting understory species composition. Thinning increased the understory plant density by increasing litter thickness and moisture, but decreased plant density by reducing soil organic matter and moisture. Similarly, thinning indirectly promoted the seedling density of woody species by reducing canopy closure. Soil (moisture, pH, total potassium and phosphorus) and light variables affected soil seed bank species composition significantly, whereas light and litter variables had significant impacts on litter seed bank species composition. Although thinning had no direct effect on the soil seed bank density, it facilitated the litter seed bank accumulation. Moderate-heavy thinning intensity could enhance seed bank regeneration potential greatly, and understory tending measures further amplified this potential. In summary, thinning and tending measures could enhance the understory regeneration potential of seed bank during the forest restoration.