Natural Vegetation Succession Characteristics and Influencing Factors for Reclamation Area of Tianjin City

Gao Yue; Luo Li; Li Hongyuan

doi:10.13961/j.cnki.stbctb.2022.04.032

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Natural Vegetation Succession Characteristics and Influencing Factors for Reclamation Area of Tianjin City

- Natural Vegetation Succession Characteristics and Influencing Factors for Reclamation Area of Tianjin City
- Bulletin of Soiland Water Conservation Vol. 42, Issue 4, Pages: 251-257(2022)
- 作者机构：
  
  1. 南开大学环境科学与工程学院,天津,300350
  2. 中国矿业大学(北京) 恢复生态学研究所,北京,100083
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2022.04.032
  CLC： Q14;X171.4
- Published：2022
- 稿件说明：
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Gao Yue, Luo Li, Li Hongyuan. Natural Vegetation Succession Characteristics and Influencing Factors for Reclamation Area of Tianjin City[J]. Bulletin of Soiland Water Conservation, 2022, 42(4): 251-257.
DOI：

Gao Yue, Luo Li, Li Hongyuan. Natural Vegetation Succession Characteristics and Influencing Factors for Reclamation Area of Tianjin City[J]. Bulletin of Soiland Water Conservation, 2022, 42(4): 251-257. DOI： 10.13961/j.cnki.stbctb.2022.04.032.

摘要

[目的] 探究天津市填海造陆区自然演替特征和影响因素，为填海造陆区生态恢复与重建提供科学依据。[方法] 以天津市不同时期填海造陆区为研究对象，采取野外调查采样、实验室测定与双向指示种分析法(TWINSPAN)、除趋势典范对应分析(detrended correspondence analysis，DCA)、典范对应分析(canonical correspondence analysis，CCA)等分析方法，分析天津市填海造陆区植物群落类型、演替模式和影响因素。[结果] ①天津市填海造陆区自然植被演替序列为：盐地碱蓬群落→芦苇—盐地碱蓬群落→獐毛群落→芦苇群落→柽柳—鹅绒藤群落。随着演替的进行，土壤含盐量逐渐降低，植物种类逐渐增加。②土壤全盐含量、离市区二级道路的距离和离15 m等深线的距离在不同演替阶段间存在显著差异，是天津市填海造陆区自然植被演替的主要影响因子。[结论] 天津市填海造陆区的植被演替受自然和人为因子的共同作用，科学调控环境因子(如土壤全盐含量)可为填海造区植被恢复提供有利环境条件。

Abstract

[Objective] The natural vegetation succession characteristics and influencing factors for a reclamation area in Tianjin City were studied in order to provide a scientific basis for ecological restoration and reconstruction of the reclamation area.[Methods] The plant community types

succession patterns and influencing factors in a reclamation area of Tianjin City were analyzed by field survey and sampling

laboratory measurements and TWINSPAN

detrended correspondence analysis and canonical correspondence analysis

etc.[Results] ① The natural vegetation succession sequence in the reclamation area of Tianjin City followed the order of:Ass. Suaeda salsa →Ass. Phragmites australis+Suaeda salsa →Ass. Aeluropus sinensis→Ass. Phragmites australis→Ass. Tamarix chinensis-Cynanchum chinense. Soil salinity gradually decreased and the number of the plant species gradually increased as succession proceeded. ② Total soil salinity

distance from urban secondary roads

and distance from the 15 m isobath were significantly different in different succession stages

and these were the main factors influencing the primary succession of vegetation in the reclamation area of Tianjin City.[Conclusion] Vegetation succession in the reclamation area of Tianjin City was affected by both natural and human factors. Scientific regulation of environmental factors (e.g. total soil salinity) could provide favorable environmental conditions for vegetation restoration in reclamation areas.

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