Influence factors of Ilex chinensis seedling regeneration in the mountainous region of southern Jiangsu Province

WANG Xiaomei, KANG Xin, HOU Changying, ZHENG Abao, ZHANG Cunkuan, XU Chi, LIU Maosong

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2017, Vol. 41 ›› Issue (04) : 197-201.

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南京林业大学学报（自然科学版）
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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2017, Vol. 41 ›› Issue (04) : 197-201. DOI: 10.3969/j.issn.1000-2006.201604019

Influence factors of Ilex chinensis seedling regeneration in the mountainous region of southern Jiangsu Province

  • WANG Xiaomei1, KANG Xin1, HOU Changying2, ZHENG Abao2, ZHANG Cunkuan3, XU Chi1, LIU Maosong1*
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Abstract

【Objective】Seedling regeneration is an important part of natural succession and vegetation restoration, and studying the relationship between seedling regeneration and environmental factors could provide useful information for managing natural secondary forests.【Method】We selected four sampling plots that were typical subtropical secondary forest communities in the Lishui Forestry Farm, Jiangsu Province, China, studied the size-density distribution characteristics of Ilex chinensis seedlings in each plot. On this basis, we analyzed the relationships between I.chinensis seedlings and three kinds of environmental factors, including intraspecific, interspecific, and soil factors, by the method of the redundancy analysis(RDA).【Result】With increasing importance value of I.chinensis in different communities, size-density distribution characteristic become from ‘high density-small size' to ‘low density-big size'. In general, three kinds of environmental factors promoted seedling regeneration, but there were differences between the factors. In communities with high I. chinensis importance values, the stand structure factors, including intraspecific and interspecific factors, were dominant, and the interspecific interactions mainly shows in main story. With decreasing I. chinensis importance values, the influence of soil factors gradually exceeded that of the stand structure factors, and interspecific interactions in the regeneration layer became stronger.【Conclusion】In the mountainous region of southern Jiangsu Province, dominant factors affecting seedling regeneration vary by community type, and the effects of environmental factors change with importance value of I.chinensis.

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WANG Xiaomei, KANG Xin, HOU Changying, ZHENG Abao, ZHANG Cunkuan, XU Chi, LIU Maosong. Influence factors of Ilex chinensis seedling regeneration in the mountainous region of southern Jiangsu Province[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2017, 41(04): 197-201 https://doi.org/10.3969/j.issn.1000-2006.201604019

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