[1]邹朋,王进鑫,张青,等.水分和铅交互胁迫对紫穗槐苗木光合特性和水分利用效率的影响[J].水土保持研究,2013,20(03):146-149,154.
　ZOU Peng,WANG Jin-xin,ZHANG Qing,et al.Effects of Interactive Stress of Water and Lead on Characteristics of Photosynthesis and Water Use Efficiency of Amorpha fruticosa Seedlings[J].Research of Soil and Water Conservation,2013,20(03):146-149,154.
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水分和铅交互胁迫对紫穗槐苗木光合特性和水分利用效率的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年03期 页码: 146-149,154 栏目: 出版日期: 2013-06-28
Title:
Effects of Interactive Stress of Water and Lead on Characteristics of Photosynthesis and Water Use Efficiency of Amorpha fruticosa Seedlings
作者:
邹朋, 王进鑫, 张青, 刘俊峰, 伍欢
西北农林科技大学 资源环境学院, 农业部西北植物营养与农业环境重点实验室, 陕西 杨凌 712100
Author(s):
ZOU Peng, WANG Jin-xin, ZHANG Qing, LIU Jun-feng, WU Huan
College of Natural Resources and Environment, Northwest A & F University, Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
关键词:
紫穗槐; 交互胁迫; 叶绿素; 净光合速率; 水分利用效率
Keywords:
Amorpha fruticosa; interaction stress; chlorophyll content; net photosynthesis rate; water use efficiency
分类号:
Q945.78
摘要:
通过盆栽实验研究1 a生紫穗槐（Amorpha fruticosa）在不同水分处理（土壤相对含水率为40%，60%，80%，100%）及重金属铅胁迫水平（0，1 000，2 000，4 000，6 000 mg/kg）交互作用下叶绿素含量、净光合速率和水分利用效率的变化。结果表明：在水分和铅交互胁迫下，紫穗槐叶绿素含量变化无明显规律可循，铅含量 < 4 000 mg/kg时，不同水分胁迫条件下紫穗槐叶绿素含量呈逐渐下降趋势，铅含量 > 4 000 mg/kg时，不同水分胁迫条件下紫穗槐叶绿素含量呈逐渐上升趋势。水分和铅交互胁迫下，紫穗槐净光合速率呈下降趋势，铅含量 < 2 000 mg/kg时，不同水分胁迫条件下紫穗槐净光合速率逐渐上升，铅含量 > 2 000 mg/kg时，不同水分胁迫条件下紫穗槐净光合速率逐渐下降。在水分和铅交互胁迫下，紫穗槐水分利用效率呈上升趋势，土壤相对含水率为40%（重度水分胁迫）时，紫穗槐水分利用效率最大。
Abstract:
The theory of the changes of chlorophyll content, net photosynthesis rate and water use efficiency in annual of Amorpha fruticosa seedlings treated was explored by different levels of water (40%, 60%, 80%, and 100%) and lead (0, 1 000, 2 000, 4 000, and 6 000 mg/kg) through the pot experiment. The results showed that the change of chlorophyll content of Amorpha fruticosa seedlings had no obvious regularity under interactive stress, under lead less than 4 000 mg/kg, chlorophyll content of Amorpha fruticosa seedlings decreased in different water stress conditions, under lead more than 4 000 mg/kg, chlorophyll content of Amorpha fruticosa seedlings increased in different water stress conditions. Net photosynthesis rate of Amorpha fruticosa seedlings decreased gradually under interactive stress, under lead less than 2 000 mg/kg, net photosynthesis rate of Amorpha fruticosa seedlings increased in different water stress conditions, under lead more than 2 000 mg/kg, net photosynthesis rate of Amorpha fruticosa seedlings decreased in different water stress conditions. Water use efficiency of Amorpha fruticosa seedlings increased gradually under interactive stress, water use efficiency of Amorpha fruticosa seedlings reaches to a maximum value when relative soil water content was 40% (severe water stress).

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备注/Memo

收稿日期:2012-10-16;改回日期:2012-11-28。
基金项目:国家自然科学基金项目（31170579）；高等学校博士学科点专项科研基金资助课题（20110204110009）
作者简介:邹朋(1987-),男,辽宁营口人,硕士研究生,主要从事生态环境工程研究。E-mail:zploveyl@126.com
通讯作者:王进鑫(1962-),男,甘肃镇原人,教授,博士生导师,主要从事干旱区人工林生态系统水分运移调控与生态恢复理论研究。E-mail:jwang118@126.com

更新日期/Last Update: 1900-01-01