[1]张元恺,王飞*,郭树江,等. 不同年代梭梭同化枝δ13C值与解剖结构及生理指标的关系[J].西北林学院学报,2022,37(4):43-49.[doi:10.3969/j.issn.1001-7461.2022.04.06]
　ZHANG Yuan-kai,WANG Fei*,GUO Shu-jiang,et al. The Relationship Between δ13C Values and Anatomical Structure and Physiological Indexes of Assimilating Shoots of Different-Aged Haloxylon ammodendron[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2022,37(4):43-49.[doi:10.3969/j.issn.1001-7461.2022.04.06]
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 不同年代梭梭同化枝δ13C值与解剖结构及生理指标的关系()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第37卷
期数:
2022年第4期
页码:
43-49
栏目:
出版日期:
2022-07-31

文章信息/Info

Title:
 The Relationship Between δ13C Values and Anatomical Structure and Physiological Indexes of Assimilating Shoots of Different-Aged Haloxylon ammodendron
文章编号:
1001-7461(2022)04-0043-07
作者:
 张元恺1; 王飞1; 2*; 郭树江1; 3; 杨雪梅1; 张卫星1; 张晓娟1; 韩福贵1; 2; 张裕年1; 2
 （1.甘肃省治沙研究所，甘肃 兰州 730070；2.甘肃省荒漠化与风沙灾害防治国家重点实验室（培育基地），甘肃 武威 733000；3.甘肃民勤荒漠草地生态系统国家野外科学观测研究站，甘肃 民勤 733300）
Author(s):
 ZHANG Yuan-kai1; WANG Fei1; 2*; GUO Shu-jiang1; 3; YANG Xue-mei1; ZHANG Wei-xing1; ZHANG Xiao-juan1; HAN Fu-gui1; 2; ZHANG Yu-nian1; 2
 (1.Gansu Desert Control Research Institute,Lanzhou 730070,Gansu,China; 2.State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating,Wuwei 733000,Gansu,China; 3.Gansu Minqin National Studies Station for Desert Steppe Ecosystem,Minqin 733300,Gansu,China)
关键词:
 ; 梭梭; 稳定碳同位素; 解剖结构; 生理指标; 民勤
Keywords:
 ; Haloxylon ammodendron;  δ13C;  anatomical structure;  physiological index;  Minqin
分类号:
S718.43
DOI:
10.3969/j.issn.1001-7461.2022.04.06
文献标志码:
A
摘要:
 植物叶片的稳定碳同位素组成（δ13C）指示了其水分利用效率的高低，反映植物对干旱环境的适应能力。以民勤梭梭为试验材料，通过测定不同年代梭梭同化枝δ13C、解剖结构、含水量、叶绿素含量、渗透调节物质（脯氨酸、可溶性糖）含量和C、N、P、K含量等，分析梭梭同化枝δ13C随年代变化规律及其与解剖结构、生理指标之间关系。结果表明：1)梭梭同化枝δ13C值的变化范围在-0.156 5%～-0.138 5%，随着年代的增加，梭梭同化枝δ13C值呈先升高后降低再升高的趋势，在20世纪70年代出现峰值。2)除角质层和导管孔径，不同年代梭梭同化枝解剖结构指标差异显著（P＜0.05），变异系数变化范围为5.19%～21.53%；不同年代梭梭同化枝δ13C值与解剖结构各指标之间相关性均未达到显著水平（P＞0.05）。3)不同年代梭梭同化枝δ13C值与全氮含量呈显著负相关（P＜0.05）。以上研究结果表明，叶片δ13C值可以反映植物生长环境及本身水分的亏缺程度；N含量显著影响民勤不同年代梭梭同化枝δ13C值。
Abstract:
 The stable carbon isotope composition (δ13C) of plant leaves indicates the water use efficiency of plants and reflects the adaptability of plants to arid environment.In this study,Haloxylon ammodendron occurring in Minqin of Gansu Province was used as experimental material,the δ13C value,water content,chlorophyll content,contents of osmotic regulatory substances (proline and soluble sugar),carbon,nitrogen,phosphorus and potassium of H.ammodendron assimilating shoots in different ages were determined,and the relationships between the δ13C and physiological indexes were analyzed.The results showed that 1) the δ13C values of H.ammodendron assimilating shoots varied from -0.156 5% to -0.138 5%.With the increase of age,the δ13C values increased first,then decreased and then increased,and peaked in the 1970s.2) Except for cuticular and pore of catheter,there were significant differences in anatomical structure indexes of the shoots in different ages (P<0.05),and the variation coefficient ranged from 5.19% to 21.53%.There was no significant correlation between the δ13C values of the shoots in different ages and anatomical structure indexes (P>0.05).3) There was a significant negative correlation between the δ13C values of the shoots in different ages and total nitrogen content (P<0.05).The δ13C values of the leaves could reflect the growing environment and the degree of water deficit in plants.Nitrogen content significantly affected the δ13C values of H.ammodendron assimilating shoots with different ages.

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备注/Memo

备注/Memo:
 收稿日期：2021-12-27修回日期：2022-01-25
基金项目：国家青年科学基金（31700339）；国家地区基金（32060373；31960334；31860238；32060378；32060246）；省青年科技基金计划（20JR10RA469、20JR10RA465）；中科院“西部之光”项目。
第一作者：张元恺，高级工程师。研究方向：荒漠化防治。E-mail:289611088@qq.com
*通信作者：王飞，助理研究员。研究方向：荒漠化防治。E-mail:zmffei@126.com
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