Acta Agrestia Sinica ›› 2018, Vol. 26 ›› Issue (1): 160-167.DOI: 10.11733/j.issn.1007-0435.2018.01.019

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Soil Quality Assessment Along Re-vegetation on Sloping-Land with Purple Soils in Hengyang of Hunan Province, South-central China

CHEN Jing, YANG Ning   

  1. College of Landscape Architecture, Hunan Environmental-Biological Polytechnic College, Hengyang, Hunan provience 421005, China
  • Received:2017-03-09 Revised:2017-08-06 Online:2018-02-15 Published:2018-05-25

衡阳紫色土丘陵坡地植被恢复过程中土壤质量评价

陈璟, 杨宁   

  1. 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:陈璟(1966-),男,副教授,主要从事园林植物、园林生态方面研究,E-mail:heshecheng2@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(13C247);湖南省林业科技创新计划项目(XLK201341);湖南省衡阳市农业科技支撑计划项目(2014KN27)资助

Abstract:

By using the spatial series to replace time series, four typical sampling plots [grassplot(GT), frutex and grassplot(FG), frutex(FX) and arbor-frutex(AF) community] were selected to study the effects of re-vegetation on soil quality with the method of integrated soil quality index. The four communities on sloping-land with purple soils were similar and typical, and denoted four different successive stages in Hengyang of Hunan Province, South-central China. Results indicated: Soil quality was obviously improved in the process of re-vegetation(P<0.05); With increasing soil depth, effects of soil improving decreased(P<0.05); Integrated soil quality index in different re-vegetation stages followed the order as AF community(0.528) > FX community(0.522) > FG community(0.485) > GT community(0.482). All the results indicated soil quality was improved in the process of re-vegetation on sloping-land of purple soils in Hengyang of Hunan Province, South-central China.

Key words: Soil quality, Assessment, Purple soils, Hengyang

摘要:

本文以典型的衡阳紫色土丘陵坡地不同恢复阶段为研究对象,采用空间序列代替时间序列方法,选用立地条件基本相似草坡(grassplot, GT)群落、灌草(frutex and grassplot, FG)群落、灌丛(frutex, FX)群落和乔灌(arbor and frutex, AF)群落为研究对象,采用土壤质量综合指数的研究方法探讨植被恢复对土壤质量的影响。结果表明:随着植被恢复进行,土壤质量得到明显改善(P<0.05);随着土层深度的增加,土壤的改良效果明显降低(P<0.05);不同植被恢复阶段的土壤质量的综合指数为乔灌群落(0.528) > 灌丛群落(0.522) > 灌草群落(0.485) > 草坡群落(0.482)。研究表明:植被恢复改善了衡阳紫色土丘陵坡地的土壤质量。

关键词: 土壤质量, 评价, 紫色土, 衡阳

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