宋娟丽,吴发启,姚军,佘雕,包耀贤.弃耕地植被恢复过程中土壤理化性质演变趋势研究[J].干旱地区农业研究,2009,27(3):168~173
弃耕地植被恢复过程中土壤理化性质演变趋势研究
Changes of soil physical and chemical properties during vegetation restoration on abandoned cropland
  
DOI：10.7606/j.issn.1000-7601.2009.03.31
中文关键词:  弃耕地  弃耕年限  植被恢复  土壤理化性质  演变趋势
英文关键词:abandoned cropland  abandoned years  vegetation restoration  soil physical and chemical properties  changes
基金项目:中国科学院知识创新工程项目“黄土高原水土保持与生态环境建设试验示范研究”(KZCX2-XB2-05-01)
作者单位
宋娟丽 College of Resources and Environment Northwest A＆F University,Yangling,Shaanxi 712100, China 
吴发启 College of Resources and Environment Northwest A＆F University,Yangling,Shaanxi 712100, China 
姚军 College of Resources and Environment Northwest A＆F University,Yangling,Shaanxi 712100, China 
佘雕 College of Resources and Environment Northwest A＆F University,Yangling,Shaanxi 712100, China 
包耀贤 College of Resources and Environment Northwest A＆F University,Yangling,Shaanxi 712100, China 
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中文摘要:
      通过对安塞纸坊沟流域14块不同弃耕年限的草地土壤理化性质的研究表明:随着弃耕地植被的恢复,土壤容重降低、孔隙度增大、质地改善;土壤有机质含量、CEC、全氮含量、全钾含量、水解氮及速效钾含量逐步提高,土壤盐分含量、土壤pH值有逐步降低的趋势,说明随着植被的恢复,土壤理化性质在不断优化。另外植被生物量与土壤有机质、CEC、全钾、速效钾、全氮及水解氮均呈极显著正相关,与土壤pH值与土壤容重呈极显著负相关,说明土壤与植被具有互动效应。
英文摘要:
      Study was made on soil physical and chemical properties of 14 pieces of abandoned cropland with different years of abandonment.The results showed that soil bulk density was descending and the texture was improving;soil organic matter content, CEC, total K, hydrolyze N and available K were increasing during vegetation restoration, while soil salt content and soil pH value were decreasing.It meant soil physical and chemical properties were improving during the vegetation restoration.In addition, plant biomass correlated closely with soil organic matter content, CEC, total N, total K, hydrolyze N, available K, pH and soil bulk density.It showed that soil and vegetation interacted.
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