摘要
通过对桉树(Eucalyptus spp.)、大叶栎(Castanopsis fissa)、马尾松(Pinus massoniana)人工林生态系统的土壤进行物理性质和养分含量研究,探讨3种人工林对土壤肥力的影响。研究结果表明:桉树、大叶栎、马尾松人工林土壤密度分别为1.17 g/㎝3、0.91 g/㎝3、1.61 g/㎝3,土壤孔隙度分别为56.04%、65.66%、39.43%;土壤密度随着土层深度的增加而增加,土壤孔隙度随着土层深度的增加而下降;土壤疏松程度表现为大叶栎人工林>桉树人工林>马尾松人工林。桉树、大叶栎、马尾松人工林土壤水解氮、速效磷、速效钾等养分含量,随着土层深度的增加而下降,总体表现为大叶栎人工林>桉树人工林>马尾松人工林。
Soil physical properties and nutrient of Eucalyptus spp., Castanopsis fissa and Pinus massoniana plantations ecosystems were collected, and effects of the three types of plantations on soil nutrient were studied in this paper. The results showed that(1)Soil den-sity of Eucalyptus spp., Castanopsis fissa and Pinus massoniana were 1. 17 g/㎝3, 0.91 g/㎝3 and 1.61 g/㎝3, and the soil porosity were56.04%、65.66%、39.43%, respectively. Soil density of the three plantations were all increased with soil depth increase, however, soil po-rosity decreased with soil depth increase. Castanopsis fissa plantation had the largest soil porosity value and Pinus massoniana had thesmallest one.(2)The content of hydrolyzable nitrogen, available phosphorous and available potassium were decreased with soil depth in-crease. Castanopsis fissa plantation had the largest content of hydrolyzable nitrogen, available phosphorous and available potassium, whilePinus massoniana plantation had the smallest one.
出处
《广西科技师范学院学报》
2017年第5期127-130,共4页
Journal of Guangxi Science & Technology Normal University
基金
广西教育厅一般项目(200103YB169)
广西教育厅立项项目(KY2015LX712)
广西生态工程职业技术学院课题(201401A)
作者简介
何红娟（1966-）,女,广西灵山人,副教授,研究方向森林环境、环境生态.
