干旱区生态环境知识资源中心(Arid): 宁夏盐池干旱风沙区六种牧草的生产性能及光合特性研究

Arid

	宁夏盐池干旱风沙区六种牧草的生产性能及光合特性研究
其他题名	The productive performance and photosynthetic characteristics of six forages in arid sandy area of Yanchi,Ningxia
	陈彦云 1; 贾倩民 2; 陈科元 2; 李旺霞 3
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2015
卷号	29 期号:5 页码:111-115
中文摘要	以沙打旺、紫花苜蓿、草木樨、扁穗冰草、蒙古冰草和披碱草6种牧草为研究对象,通过测定其生产性能和光合特征参数,研究其在宁夏盐池干旱风沙区的生产能力和光合能力。结果表明:豆科的干草产量显著高于禾本科,其中草木樨植株较高,分枝数多,叶面积指数及干草产量高,生产性能较强,其次是紫花苜蓿和沙打旺;禾本科披碱草的株高、密度和分蘖数显著大于扁穗冰草和蒙古冰草,生产性能一般,两种冰草的生产性能较差;豆科的净光合速率、蒸腾速率、胞间CO_2浓度、气孔导度和相对叶绿素含量均显著大于禾本科,草木樨和紫花苜蓿光合能力较强;禾本科披碱草的水分利用效率显著高于豆科。相关分析表明,株高与分枝(分蘖)数、茎叶比、叶面积指数和干草产量呈极显著正相关,与密度、鲜干比分别呈极显著和显著负相关,茎叶比、叶面积指数与干草产量呈极显著正相关,净光合速率、蒸腾速率与胞间CO_2浓度、气孔导度、叶绿素含量呈极显著正相关,气孔导度与胞间CO_2浓度呈极显著正相关,与水分利用效率呈极显著负相关。
英文摘要	The productive performance and photosynthetic characteristics of 6 grasses (Astragalus adsurgens, Medicago sativa,Melilotus suaveolens,Agropyron cristatum,Agropyron mongolicum and Elymus cylindricus)were studied in arid sandy area to clarify their productive performance and photosynthetic capacities.The results showed that the dry yield of legume was higher than gramineae significantly; M.suaveolens had high plant height,more branches,high leaf area index and dry yield and strong productive performance,followed by M.sativa and A.Adsurgens.Gramineae in E.cylindricus had general productive performance which had higher plant height,more density and branch number than A.mongolicum and E.cylindricus significantly,A.mongolicum and E.Cylindricus had the inferior productive performance.Legume had higher Pn,Tr,Ci,Gs and Chl content than gramineae significantly,M.suaveolens and M.Sativa had high photosynthetic capacities,E.Cylindricus had higher WUE than legume significantly.Correlation analysis showed the plant height had significant positive correlation with branch or tiller number,the stem/leaf ratio,leaf area index and dry yield and has significant negative correlation with plant density and Gross weight/Dry weight ratio,the dry yield had significant positive correlation with the stem/leaf ratio and leaf area index.Pn and Tr had significant positive correlation with Ci,Gs and Chl content,Gs had significant positive correlation with Ci and significant negative correlation with WUE.
中文关键词	干旱风沙区 ; 牧草 ; 产量 ; 叶面积指数 ; 光合特性
英文关键词	arid sandy area forage yield leaf area index photosynthetic characteristics
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5414560
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232782
作者单位	1.宁夏大学生命科学学院, 西北土地退化与生态恢复国家重点实验室培育基地, 银川, 宁夏 750021, 中国; 2.西北土地退化与生态恢复国家重点实验室培育基地, 西北土地退化与生态恢复国家重点实验室培育基地, 银川, 宁夏 750021, 中国; 3.西北退化生态系统恢复与重建教育部重点实验室, 西北退化生态系统恢复与重建教育部重点实验室, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	陈彦云,贾倩民,陈科元,等. 宁夏盐池干旱风沙区六种牧草的生产性能及光合特性研究[J]. 宁夏大学,2015,29(5):111-115.
APA	陈彦云,贾倩民,陈科元,&李旺霞.(2015).宁夏盐池干旱风沙区六种牧草的生产性能及光合特性研究.干旱区资源与环境,29(5),111-115.
MLA	陈彦云,et al."宁夏盐池干旱风沙区六种牧草的生产性能及光合特性研究".干旱区资源与环境 29.5(2015):111-115.