| 摘要: |
| 土壤种子库作为自然生态系统的基因库，是传统生
态修复的主要手段之一，但在生态园林建设中并未引起足够
的重视。以广东省深圳市为例，选取梧桐山自然保护区2种
具有代表性的群落类型(常绿阔叶混交林和荔枝纯林)，研究
了土壤种子库的萌发特征，以及覆盖物(椰糠和园林废弃物)
对常绿阔叶混交林土壤种子库演替初期群落生长的影响。结
果表明：1)2种林型土壤种子库物种丰富度相当，分别为常
绿阔叶混交林9种、荔枝纯林8种，荔枝纯林土壤种子库密度
和覆盖率分别为576.29粒/m2
、15.31%，明显高于常绿阔
叶混交林236.93粒/m2
、7.57%；2)覆盖物能显著提升常
绿阔叶混交林土壤种子库种子萌发的数量及早期演替群落的
覆盖度，具体表现为：椰糠组(密度：648.58粒/m2
、覆盖
率：13.74%)＞园林废弃物组(密度：368.56粒/m2
、覆盖
率：11.11%)＞对照组(密度：236.93粒/m2
、覆盖率：
7.57%)；3)2种林型土壤种子库与地上植被的物种相似度均
很低，分别为常绿阔叶混交林0.16，荔枝纯林0.19。结果表
明，从土壤种子库的物种丰富度、密度和早期演替群落盖度来
看，梧桐山土壤种子库在生态园林工程中的应用潜力很大，可
以作为深圳乃至华南地区生态园林建设的重要手段。同时，在
实际工程应用中，可以运用椰糠等覆盖物促进种子的萌发及演
替早期群落的形成。 |
| 关键词: ：园林植物 植被组成 土壤种子库 覆盖物 相
似性系数 |
| DOI： |
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| 基金项目: |
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| Research on the Application Potential of Soil Seed Bank in Ecological Landscape Engineering |
| MAO Junzhu,ZHENG Weiguo,WANG Dingyue,ZENG Pengfei,WANG Yechun |
| Abstract: |
| As the gene bank of natural ecosystems, soil seed bank
is one of the main methods of traditional ecological restoration,
but it has not attracted enough attention in the construction of
ecological gardens. Taking Shenzhen City of Guangdong Province
as an example, this paper selects two representative community
types (evergreen broad-leaved mixed forest and Litchi chinensis
forest) in Wutongshan Nature Reserve, and studies the germination
characteristics of soil seed bank and the effects of coverings (coconut
and garden waste) on community growth in the early stage of soil
seed bank succession in evergreen broad-leaved mixed forest.
The results showed that: 1) The species richness of the two forest
type soil seed banks is equivalent, which are 9 kinds of evergreen
broad-leaved mixed forest and 8 kinds of Litchi chinensis forest.
The soil seed bank density and coverage rate of Litchi chinensis
forest were 576.29 grains/m2
and 15.31%, which was significantly
higher than the 236.93 grains/m2
and 7.57% of the evergreen broadleaved mixed forest; 2) The covering can significantly increase the
number of seed germination and the coverage of early succession
communities in the soil seed bank of evergreen broad-leaved mixed
forest, the specific performance is: cocoon group (density: 648.58
grains/m2
, coverage: 13.74%) > garden waste group (density: 368.56
grains/m2
, coverage: 11.11%) > control group (density: 236.93
grains/m2
, coverage: 7.57%); 3) The species similarity between the
two forest type soil seed banks and the aboveground vegetation was
very low, the evergreen broad-leaved mixed forest was 0.16, and
the Litchi chinensis forest was 0.19. Conclusion: From the species
richness, density and early succession coverage of soil seed bank,
the application of soil seed bank in Wutong Mountain has great
potential in ecological garden engineering, which can be used as an
important means of ecological garden construction in Shenzhen and
even in southern China. At the same time, in practical engineering
applications, coconut and other coverings can be used to promote
seed germination and succession of early community formation |
| Key words: landscape plant vegetation composition soil seed
bank covering similarity coefficient |
