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Regeneration characteristics of three natural Juniperus forests in the Three-River Headwater Region of Qinghai Province, China
Ist Teil von
Ying yong sheng tai xue bao, 2022-02, Vol.33 (2), p.297-303
Ort / Verlag
China
Erscheinungsjahr
2022
Link zum Volltext
Quelle
Free E-Journal (出版社公開部分のみ）
Beschreibungen/Notizen
The aims of this study were to clarify the regeneration characteristics and dominant factors affecting the regeneration of three natural
forests in the Three-River Headwater Region of Qinghai Province, and thus to provide a reference for the protection and management of natural forests. We evaluated the natural regeneration levels of
forests, and the effects of stand factors and soil factors on natural regeneration. The results showed that three natural
forests were poorly regenerated, with insufficient regeneration potential. The average regeneration density of
forest,
forest and
forest was 332, 279 and 202 ind·hm
, respectively. The height range of regenerate individuals was concentrated in 1-3 m. Only a few seedlings (12 ind·hm
) were found under the
forest, and no seedlings were found under the
and
forests. The regeneration density of
forest was significantly positively correlated with stand density, soil organic matter and available phosphorus, and negatively correlated with shrub coverage. The regenerat