[1]柴成武,张德魁,王方琳*,等. 4种荒漠植物种子出苗和幼苗生长对沙埋深度的响应[J].西北林学院学报,2020,35(2):108-113.[doi:10.3969/j.issn.1001-7461.2020.02.15]
　CHAI Cheng-wu,ZHANG De-kui,WANG Fang-lin*,et al. Response of Seed Emergence and Seedling Growth of Four Desert Plant Species on Sand Burial Depth[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2020,35(2):108-113.[doi:10.3969/j.issn.1001-7461.2020.02.15]
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 4种荒漠植物种子出苗和幼苗生长对沙埋深度的响应()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第35卷
期数:
2020年第2期
页码:
108-113
栏目:
出版日期:
2020-03-31

文章信息/Info

Title:
 Response of Seed Emergence and Seedling Growth of Four Desert Plant Species on Sand Burial Depth
文章编号:
1001-7461(2020)02-0108-06
作者:
 柴成武; 张德魁; 王方琳*; 王飞; 刘开琳; 朱淑娟; 孙涛
 (甘肃省治沙研究所，甘肃省荒漠化与风沙灾害防治重点实验室，甘肃 武威 733000)
Author(s):
 CHAI Cheng-wu; ZHANG De-kui; WANG Fang-lin*; WANG Fei; LIU Kai-lin; ZHU Shu-juan; SUN Tao
 (The State Key Laboratory of Desertification Combating Prevention and Sandstorm Disaster of Gansu Province,Gansu Desert Control Research Institute,Wuwei 733000,Gansu,China)
关键词:
 ; 种子出苗; 幼苗生长; 沙埋深度; 荒漠植物
Keywords:
 ; seed emergence;  seedling growth;  sand buried depth;  desert plant species
分类号:
S723.13
DOI:
10.3969/j.issn.1001-7461.2020.02.15
文献标志码:
A
摘要:
 通过室内试验测定了黑果枸杞、沙冬青、沙蒿、霸王4种荒漠植物的种子生理特征以及沙埋深度（0、1、2、3、4、5 cm）对4种荒漠植物种子出苗及幼苗生长的影响。结果表明，体积较大的沙冬青和霸王种子萌发率与其重量、含水量、形状及活性间存在正相关关系；体积较小的黑果枸杞、沙蒿萌发率与种子重量、含水量、形状之间为正相关关系，与种子活性负相关。随着沙埋深度增加，4种植物种子出苗率下降、首次出苗时间延迟，茎高、绝对株高和根长及根冠比总体呈先增大后减小的趋势；幼苗生长方面，黑果枸杞和沙蒿分别适宜于1～2、0～1 cm的浅层沙埋，均在沙埋深度5 cm时种子几乎不萌发；沙冬青、霸王则适宜于3～4 cm较深层沙埋，在沙埋0 cm时均不萌发。此外，在荒漠区采用这4种植物进行植被恢复时，除考虑种子自身性状外，还应充分考虑当地的沙埋、降雨等条件，以提高出苗率、增大幼苗定植率。
Abstract:
 The seed physiological characteristics and the effects of sand burial depth (0，1，2，3，4，5 cm) on seedling emergence and growth of four desert plant species (Lycium ruthenicum,Ammopiptanthus mongolicus,Artemisia desertorum,and Sarcozygium xanthoxylon）were determined by laboratory experiments.It was found that for the plant species with large seed volume,such as A.mongolicus and S.xanthoxylon,there existed positive correlations between the germination rates and seed physiological characteristics (such as the weight,water content,shape,and seed vigor).For the plant species with small seed volume,such as L.ruthenicum and A.desertorum,the correlations between germination rate and seed weight,water content and shape were positive,while the correlation between the germination rate and seed vigor was negative.With the increase of sand burial depth,the seedling emergence rate decreased and the first seedling emergence time was delayed for all four plant species.In terms of seedling growth，the L.ruthenicum and A.desertorum were suitable for shallow sand burial of 1-2 cm and 0-1 cm respectively,the seeds hardly germinated when they were buried at 5 cm in depth; while A.mongolicus and S.xanthoxylon were suitable for deep sand burial of 3-4 cm.Seeds did not germinate when they were buried at the depth of 0 cm.In order to increase the emergence rate and the seedling planting rate,the seed characteristics should be considered and the local conditions such as sand burial and rainfall also should be taken into full consideration when using these four plant species for vegetation restoration in desert areas.

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备注/Memo

备注/Memo:
 收稿日期：2019-04-28修回日期：2019-10-22
基金项目：国家自然科学基金项目（41761051、31560236、31700339、31660237、41661064)；甘肃省林业科技项目（2017kj024、2017kj025）。
作者简介：柴成武，男，副研究员，研究方向：水土保持与荒漠化防治。E-mail:chaichw@163.com
*通信作者：王方琳，女，副研究员，研究方向:植物生理生态和荒漠化防治。E-mail：wangfanglin2008@163.com
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