干旱区生态环境知识资源中心(Arid): 覆土厚度对中国沙棘幼苗出土及生长的影响

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	覆土厚度对中国沙棘幼苗出土及生长的影响
其他题名	Effects of Covering Soil Thickness on Seedling Emergence and Growth of Hippophae rhamnoides subsp.Sinensis
	曹子林; 王挺; 王晓丽; 王吉; 李根前
来源期刊	山东农业大学学报. 自然科学版
ISSN	1000-2324
出版年	2018
卷号	49 期号:5 页码:738-743
中文摘要	中国沙棘是我国北方干旱、半干旱地区优良的多用途树种,但干旱往往使其种群衰退。为将其引种到降水较为充沛的滇中高原,选取该区云南松林土壤并设置0.5 cm、1.0 cm、1.5 cm、2.0 cm、2.5 cm的覆土厚度,研究覆土厚度对中国沙棘幼苗出土、生长、生物量及其分配的影响,以期为沙棘育苗提供科学依据。结果表明:覆土厚度对中国沙棘出苗过程产生影响,沙棘出苗天数、到达出苗高峰的天数随着覆土厚度的增加而推迟,到达出苗高峰的出苗数随着覆土加厚而下降。覆土厚度对中国沙棘出苗情况、幼苗生长、生物量及其分配产生极显著或显著的影响,沙棘出苗率、出苗指数,地径、高度、根长,总干重、根干重、茎干重、叶干重、单株干重及叶片比均随着覆土厚度的增加而降低,这些指标均与覆土厚度呈极显著的负相关关系;根比、茎比、根冠比均随着覆土厚度的增加而增大,这些指标均与覆土厚度呈极显著的正相关关系。
英文摘要	Hippophae rhamnoides subsp.sinensis is an excellent multipurpose tree species in arid and semi-arid areas of north China,but drought often causes its population decline.In order to introduce it to the central Yunnan plateau with abundant precipitation,the covering soil thickness of 0.5 cm,1.0 cm,1.5 cm,2.0 cm and 2.5 cm were selected.The effects of covering soil thickness on the seedling emergence,growth,biomass and its allocation of H.rhamnoides seedlings were studied,so as to provide scientific basis for seedling raising of H.rhamnoides.The results showed the thickness of the overlying soil has an impact on the emergence process of the seedling,the emergence days of H.rhamnoides and the days to the emergence peak were delayed with the increase of covering soil thickness.The number of seedlings to the peak of emergence decreased with the thickening of the soil cover.The covering soil thickness has a significant effect on seedling emergence,the seedling growth,biomass and its allocation.Seedling emergence ratio,seedling emergence index,ground diameter,height,root length,total dry weight,root dry weight,stem dry weight,leaf dry weight,single plant dry weight and leaf ratio decreased with the increase of the soil thickness,these indexes showed a very significant negative correlation with the soil thickness.Root ratio,stem ratio,root/shoot ratio increased with the increase of the covering soil thickness,there was a significant positive correlation between these indexes and the covering soil thickness.
中文关键词	覆土厚度 ; 中国沙棘 ; 幼苗出土 ; 幼苗生长
英文关键词	Covering soil thickness Hippophae rhamnoides subsp.sinensis seedling emergence seedling growth
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Forestry
WOS研究方向	Forestry
CSCD记录号	CSCD:6349401
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238059
作者单位	曹子林, 西南林业大学;;北京林业大学, ;;, 昆明;;, 云南;;北京 650224;;100083, 中国.; 王挺, 云南宏绿辣素有限公司, 昆明, 云南 650503, 中国.; 王晓丽, 西南林业大学, 昆明, 云南 650224, 中国.; 王吉, 西南林业大学, 昆明, 云南 650224, 中国.; 李根前, 西南林业大学, 昆明, 云南 650224, 中国.
推荐引用方式 GB/T 7714	曹子林,王挺,王晓丽,等. 覆土厚度对中国沙棘幼苗出土及生长的影响[J]. 北京林业大学,2018,49(5):738-743.
APA	曹子林,王挺,王晓丽,王吉,&李根前.(2018).覆土厚度对中国沙棘幼苗出土及生长的影响.山东农业大学学报. 自然科学版,49(5),738-743.
MLA	曹子林,et al."覆土厚度对中国沙棘幼苗出土及生长的影响".山东农业大学学报. 自然科学版 49.5(2018):738-743.