Acta Agrestia Sinica

Acta Agrestia Sinica ›› 2014, Vol. 22 ›› Issue (6): 1381-1384.DOI: 10.11733/j.issn.1007-0435.2014.06.037

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Soil Nutrients of CenchrusPauciflorus in the Artificial Sand-Fixation Forest Community of Horqin

ZHOU Li-ye1, ZHANG Yu-xia1, YANG Xiu-mei1, TIAN Xun2, JIANG Jian3   

  1. 1. College of Agriculture, Inner Mongolia University of Agriculture for Nationalities, Tongliao, Inner Mongolia 028042, China;
    2. School of Life science, Inner Mongolia University of Agriculture for Nationalities, Tongliao, Inner Mongolia 028042, China;
    3. College of Resources and Environment, Dalian Nationalities University, Dalian, Liaoning Province 116600, China
  • Received:2014-01-03 Revised:2014-03-18 Online:2014-12-15 Published:2014-12-01

科尔沁沙地典型人工固沙林群落中少花蒺藜草入侵地土壤特性

周立业1, 张玉霞1, 杨秀梅1, 田迅2, 姜健3   

  1. 1. 内蒙古民族大学农学院, 内蒙古 通辽 028042;
    2. 内蒙古民族大学生命科学学院, 内蒙古 通辽 0280422;
    3. 大连民族学院环境与资源学院, 辽宁 大连 116600
  • 通讯作者: 姜健
  • 作者简介:周立业(1969-),女,内蒙古乌兰察布人,博士,主要从事草地生态方面的教学与科研,E-mail:toni2002@126.com
  • 基金资助:

    贵州省科学技术基金(黔科合J字[2011]2347);内蒙古民族大学市校合作项目(SXYB2012078);国家自然科学基金(31360574)资助

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Abstract:

Field sandbur soil nutrients were determined in the different artificially sand-fixation forests of Populus simonii and Salix gordejevii habitats in Horqin. The results showed that the soil pH values of two tested habitats were 7.35～7.80, soil organic matter contents were 4.86～5.90 mg·kg-1, alkali solution N content were 21.4～59.07 mg·kg-1, effective phosphorus contents were 1.13～2.22 mg·kg-1, rapidly-available potassium contents were 78.24～173.20 mg·kg-1. In the whole growth process, soil nutrients reduced in different rates. The soil desertification increased with the growth of field sandbur.

Key words: Horqin sandy land, Cenchrus pauciflorus, Soil nutrients, Artificially sand-fixation forest

摘要：

对科尔沁沙地2个典型人工固沙林小叶杨(Populus simonii)和黄柳(Salix gordejevii)群落中优势种少花蒺藜草(Cenchrus pauciflorus)生境地土壤养分进行测定分析.结果表明:少花蒺藜草2生境地中土壤pH 值在7.35～7.80之间,土壤有机质含量在4.86～5.90 mg·kg-1之间,碱解氮含量在21.4～59.07 mg·kg-1之间,有效磷含量范围为 1.13～2.22 mg·kg-1,速效钾含量在78.24～173.20 mg·kg-1之间.土壤有机质及速效养分含量随着少花蒺藜草生长期的变化均有不同程度的下降,入侵地土壤沙化加重.

关键词: 科尔沁沙地, 少花蒺藜草, 土壤养分, 人工固沙林

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