南京林业大学学报(自然科学版) ›› 2012, Vol. 36 ›› Issue (06): 58-62.doi: 10.3969/j.jssn.1000-2006.2012.06.012

• 研究论文 • 上一篇    下一篇

黔中地区皂荚生长与不同岩性土壤酶活性的关系

胡国珠1,杨馥宁2,谢双喜3*   

  1. 1. 江西林业调查规划研究院,江西南昌330046;
    2. 南昌市林业局,江西南昌330038;
    3.贵州大学林学院,贵州贵阳550025
  • 出版日期:2012-11-30 发布日期:2012-11-30
  • 基金资助:
    收稿日期:2011-12-10修回日期:2012-05-10
    基金项目:“十五”国家科技攻关项目(2001BA606A-09)
    第一作者:胡国珠,工程师。 *通信作者:谢双喜,教授。 Email: xieshx@163.com。
    引文格式:胡国珠,杨馥宁,谢双喜. 黔中地区皂荚生长与不同岩性土壤酶活性的关系[J]. 南京林业大学学报:自然科学版,2012,36(6):58-62.

Relationship between soil enzymes activity and Gleditsia sinensis Lam. growth in different lithological soils in central Guizhou province

HU Guozhu1, YANG Funing2, XIE Shuangxi3*   

  1. 1.Jiangxi Province Academy of Forest Inventory and Planning, Nanchang 330046, China;
    2. Nanchang City Forest Bureau of Jiangxi Province, Nanchang 330038, China;
    3.Forestry College, Guizhou University, Guiyang 550025, China
  • Online:2012-11-30 Published:2012-11-30

摘要: 皂荚可作为黔中喀斯特地区恢复树种进行推广。笔者研究了该地区皂荚种植区6种不同岩性(石英砂岩、变余砂岩、第四纪红色黏土、煤系砂页岩、紫色砂页岩、灰质白云岩)土壤中4种土壤酶(蔗糖酶、脲酶、多酚氧化酶和过氧化氢酶)活性的变化。结果表明:6种岩性土壤中蔗糖酶活性均随皂荚生长季节(生长初期、生长旺期和生长末期)变化逐渐减弱,脲酶活性则随皂荚生长季节变化而增强,多酚氧化酶和过氧化氢酶活性变化不大。不同岩性土壤中土壤酶活性有较大差异。皂荚生长初期变余砂岩发育土壤的蔗糖酶最强,石英砂岩发育土壤的蔗糖酶活性最弱;生长中期各土壤蔗糖酶活性差异不大;落叶期灰质白云岩土壤蔗糖酶活性最强,煤系砂页岩发育土壤上蔗糖酶活性较稳定。脲酶活性在石英砂岩和变余砂岩土壤中最低,在其他4种岩性土壤中相近;煤系砂页岩和灰质白云岩土壤多酚氧化酶活性最高;灰质白云岩土壤过氧化氢酶活性较高。在皂荚3个生长期中,土壤酶活性均与土壤营养元素含量显著相关。综合比较不同岩性土壤4种土壤酶活性与皂荚生长关系,以灰质白云岩土壤中皂荚生长较好。这一结果可指导黔中喀斯特地区进行森林植被恢复及树种选择。

Abstract: Gleditsia sinensis Lam. is a good species for restoring ecoenvironment in Karst region of Qianzhong area. The soil enzymes activities (invertase, urease, polyphenol oxidase and catalase) in six different lithological soils (quartz sandstone, metamorphosed sandstone, quaternary red clay, coalbearing sandstone and shale, purple sandstone and shale, gray dolomite) under Chinese honey locus planting were studied.The results showed that: Invertase activity in six rock soils weakened with the growing season changed(initial stage, vigorous stage of growth and end stage of growth), urease activity was enhanced with the growing season, polyphenol oxidase and catalase activity changed little. Soil enzyme activity was different in six soils. Invertase activity in sandstone was the strongest, and quartz was the weakest in the early stage. There were little differences in mid growth among six sort of soils. Invertase activity in shale gray dolomite was the strongest; urease activity was weakest in quartz sandstone and change over sandstone and there were no significant differences among the other four soils.Catalase activity was highest in shale, and gray dolomite.Soil enzyme activity and soil nutrient content were significantly correlated during three growing seasons of Chinese honey locus. Compared with the relationship of the soil enzyme activities to the growth of Chinese honey locus, the gray dolomite is good for Chinese honey locus. This result provided the theory basis for forest vegetation restoration and tree selection in Karst region of Guizhou province.

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