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[1]潘霞,高永,刘宗奇,等.不同复配土比例对苜蓿幼苗光合特性的影响[J].黑龙江农业科学,2017,(04):109-113.[doi:10.11942/j.issn10022767.2017.04.0109]
　PAN Xia,GAO Yong,LIU Zongqi,et al.Effects of Compound Soil Ratio on Photosynthesis of Medicago sativa Seedlings[J].HEILONGJIANG AGRICULTURAL SCIENCES,2017,(04):109-113.[doi:10.11942/j.issn10022767.2017.04.0109]

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不同复配土比例对苜蓿幼苗光合特性的影响

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2017年04期页码: 109-113 栏目: 出版日期: 2017-04-10

Title:: Effects of Compound Soil Ratio on Photosynthesis of Medicago sativa Seedlings

文章编号:: 10022767（2017）04010905

作者:: 潘霞¹; 高永¹; 刘宗奇¹; 任昱²; 1.内蒙古农业大学沙漠治理学院，内蒙古呼和浩特 010018；2.内蒙古生态环境职业学院，内蒙古鄂尔多斯 017000

Author(s):: PAN Xia¹; GAO Yong¹; LIU Zongqi¹; REN Yu²; 1.College of Desert Control and Management,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010018; 2.Inner Mongolia Ecological Environment Professional College,Ordos,Inner Mongolia 017000

关键词:: 复配土; 苜蓿; 光合特性; 隶属函数法

Keywords:: compound soil; Medicago sativa; photosynthesis; subordinate function

分类号:: S565.1

DOI:: 10.11942/j.issn10022767.2017.04.0109

文献标志码:: A

摘要:: 为了高效利用风沙土，将风沙土和黄绵土以不同体积比例混合，形成复配土（复配土比例为0%、25%、50%、75%和100%），并对苜蓿幼苗光合特性进行分析。结果表明：黄绵土配比的增大使苜蓿幼苗的Pn、Gs、Ci以及WUE均呈现先升高后降低的趋势，而Tr表现为不断升高的趋势。Pn、Tr、Gs、Ci以及WUE与纯沙土（CK）处理相比，均达到显著水平。配土比例为25%时苜蓿的Pn、Gs、Ci和WUE最高，而Tr的最大值出现在配土比例为100%处理。利用隶属函数法对其进行综合评价表明，25%的配土比例综合评价指数最高，即风沙土与黄绵土配比为25%时苜蓿的光合作用效果最佳。

Abstract:: In order to efficiently use aeolian sandy soil,the aeolian sand and loess soil ratio was set as 0%,25%,50%,75% and 100% respectively for observation and analysis,the effect of different compound soil ratio on photosynthesis of Medicago sativa seedlings was studied.The results showed that photosynthetic rate (Pn),stomatal conductance (Gs),intercellular CO²concentration (Ci) and water use efficiency (WUE) of Medicago sativawere increased at first and then decreased,while transpiration rate (Tr) showed a rising trend with the loess soil ratio increased gradually.Each index was at significant level compared with CK.The maximum photosynthetic rate(Pn),stomatal conductance(Gs),intercellular CO²concentration(Ci) and water use efficiency(WUE) were occurred in 25% treatment.However,transpiration rate(Tr) was at maximum in 100% treatment.Using subordinate function to evaluate comprehensively,it was showed that comprehensive evaluation index of Medicago sativa was at the highest in 25% treatment,indicating that the aeolian sand and loess soil at 25% ratio was better to promote the growth of Medicago sativa seedlings.

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备注/Memo

收稿日期：2017-02-08资助项目：国家科技支撑计划资助项目（2015BAC06B01-03）第一作者简介：潘霞（1993-），女，内蒙古自治区包头市人，在读硕士，从事荒漠化防治研究。E-mail:panxia2016@126.com。通讯作者：高永（1962-），男，内蒙古自治区包头市人，博士，博士生导师，教授，从事荒漠化防治研究。E-mail:13948815709@163.com。

更新日期/Last Update: 2017-08-09