Comparison of Effects of Five Ecological Re-vegetation Modes on Hilly Slope with Purple Soil in Hengyang of Hunan Province,China

doi:10.11733/j.issn.1007-0435.2020.01.020

Acta Agrestia Sinica ›› 2020, Vol. 28 ›› Issue (1): 177-183.DOI: 10.11733/j.issn.1007-0435.2020.01.020

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Comparison of Effects of Five Ecological Re-vegetation Modes on Hilly Slope with Purple Soil in Hengyang of Hunan Province,China

YANG Man-yuan, YANG Ning, OUYANG Mei-juan, JIANG Lin, LIU Hao, WU Lei, WAN Li

College of Landscape Architecture, Hunan Environmental-Biological Polytechnic College, Hengyang, Hunan Province 421005, China

Received:2019-09-30 Revised:2019-11-10 Online:2020-02-15 Published:2020-01-18

衡阳紫色土丘陵坡地5种生态恢复模式的效果比较

杨满元, 杨宁, 欧阳美娟, 姜琳, 刘浩, 吴磊, 万丽

湖南环境生物职业技术学院园林学院, 湖南衡阳 421005

通讯作者: 杨宁
作者简介:杨满元(1976-),女,湖南绥宁人,讲师,主要从事植物生态学与恢复生态学研究,E-mail:yangmyhyp@sina.com
基金资助:
湖南省科技厅项目（S2006N332）；湖南省教育厅科学研究项目（16C0559）；湖南环境生物职业技术学院南岳学者基金项目（N2019-02）共同资助

Abstract

Abstract: To clarify the appropriate ecological re-vegetation modes of hilly slope with purple soil in Hengyang,we compared the plant community structure and soil nutrients of 5 ecological restoration modes—Grassplot (GT) (Melilotus albus-Crotalaria pallid),Frutex and grassland (FG) (Amorpha fruticose + Melilotus albus),Frutex (FX) (Sabina vulgaris-Coriaria nepalensis),Arbor and frutex (AF) (Liquidamdar formosana + Amorpha fruticose) and Natural re-vegetation (NR) mode——on the hilly slopes with purple soil in Hengyang of Hunan Province,China. The results showed that after 20 years of restoration,there were 8,17,16,20 and 13 species in NR,GT,FG,FX and AF modes,respectively;Annual herbs dominated in NR mode and planted species dominated in GT,FG,FX and AF modes. The plant communities in each ecological re-vegetation mode was accompanied with Cynodon dactylon,Kalimeris indica,Bidens pilosa, Disliptera chinensis,Acalypha australis and Oxalis corniculata et al. The FG mode had the highest Shannon diversity and Pielou evenness index,as well as relatively higher soil total nitrogen (TN) and soil organic matter (SOM) content. The comprehensive evaluation values,based on 4 principal component variables of 11 indices related to soil nutritions,pH values and biodiversity,indicated that the FG mode (Amorpha fruticosa + Melilotus albus) had a better performance in re-vegetation effects with higher extending values.

Key words: Species diversity, Soil property, Ecological re-vegetation mode, Purple soil

摘要： 为明确衡阳紫色土丘陵坡地适宜的生态恢复模式，本试验对比分析了衡阳紫色土地区草地（白花草木樨（Melilotus albus）-猪屎豆（Crotalaria pallid））、灌草（紫穗槐（Amorpha fruticosa）+白花草木樨）、灌丛（沙地柏（Sabina vulgaris）-马桑（Coriaria nepalensis））、乔灌（枫香（Liquidamdar formosana）+紫穗槐）与自然恢复模式下的土壤养分和植物群落结构。结果表明：恢复20年后，自然恢复、草地、灌草、灌丛与乔灌模式下出现的植物种类分别为8，17，16，20，13种，自然恢复模式以一年生草本植物为主，草地、灌草、灌丛与乔灌模式则以人工种植的植物为主，各恢复模式主要伴生种为狗牙根（Cynodon dactylon），马兰（Kalimeris indica），鬼针草（Bidens pilosa），狗肝菜（Disliptera chinensis），铁苋菜（Acalypha australis）以及酢浆草（Oxalis corniculata）等；灌草模式的Shannon多样性指数最高，Pielou均匀度指数最大，土壤全氮、有机质含量较高；基于土壤养分、pH值、物种多样性指数共11项指标的4个主成分变量（累计贡献率达90.5%）综合评价得出，灌草模式即紫穗槐（Amorpha fruticosa）+白花草木樨的恢复效果较好，具有较高推广价值。

关键词: 物种多样性, 土壤性质, 生态恢复模式, 紫色土

CLC Number:

S153.6

YANG Man-yuan, YANG Ning, OUYANG Mei-juan, JIANG Lin, LIU Hao, WU Lei, WAN Li. Comparison of Effects of Five Ecological Re-vegetation Modes on Hilly Slope with Purple Soil in Hengyang of Hunan Province,China[J]. Acta Agrestia Sinica, 2020, 28(1): 177-183.

杨满元, 杨宁, 欧阳美娟, 姜琳, 刘浩, 吴磊, 万丽. 衡阳紫色土丘陵坡地5种生态恢复模式的效果比较[J]. 草地学报, 2020, 28(1): 177-183.

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Comparison of Effects of Five Ecological Re-vegetation Modes on Hilly Slope with Purple Soil in Hengyang of Hunan Province,China

衡阳紫色土丘陵坡地5种生态恢复模式的效果比较

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