干旱区生态环境知识资源中心(Arid): 不同除草制度对沙区栽培甘草生长发育的影响

Arid

	不同除草制度对沙区栽培甘草生长发育的影响
其他题名	Effects of Different Weed Removal Treatments on Growth of Cultivated Glycyrrhiza ulalensis Fisch in Desert Area
	郭群; 张景光; 冯丽; 刘扬; 贺郝钰; 苏洁琼
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2011
卷号	31 期号:3 页码:697-702
中文摘要	研究了沙坡头植物迁地保育基地种植26 a的甘草在3种除草制度下的生长发育状况。结果表明：①从种植第11年开始连续16 a除草的样地中甘草植株开始生长最早．26 a内仅除草一年的样地次之，未除草的对照样地甘草生长开始最晚．但最终高度差异不大。②从种植第11年开始每年除草的样地中甘草株平均花序、果序、成熟种子数量及果序/花序、果序长度和种子重/生殖部分重和生殖部分重/地上生物量值最大，26 a内只除草一年的样地次之，而未除草样地甘草不能开花结实，不能完成生活史；除草仅一年样地甘草能正常开花结实，但分配给繁殖的生物量比例较连续16 a除草样地低。③杂草改善了早期沙区土壤贫瘠的状况，有利于甘草生长发育，而后期杂草的大量扩散使其与甘草竞争加剧．从而抑制甘草的生长发育。
英文摘要	The effects of different weed removal treatments on the growth of Glycyrrhiza ulalensis Fisch in Shapotou ex.situ conservation base were studied.The results showed that:(1)G.ulalensis Fisch which have been continuously weeded for 16 years since the 11th year after being planted (treatment A)began to grow earlier than those with weeds be removed only in one year (treatment B),G.ulalensis Fisch with weeds never be removed (treatment C)began to grow latest,while the final height of G.ulalensis Fisch under three treatments was almost the same; (2)The values of inflorescence,infructescence,mature seeds and the ratio of infructescence to inflorescence,weight of seeds to reproductive organ,weight of reproductive organ to biomass and the length of infructescence of G.ulalensis under treatment A were higher than those under treatment B,while these parameters under treatment C were the smallest because G.ulalensis under treatment C cannot blossom and seed normally; (3)The existence of weeds improved the soil condition in desert area,and the total nitrogen and organic matter in experimental fields was far greater than those in shifting sands,which was beneficial to the growth of G.ulalensis Fisch.The competition between weeds and G.ulalensis Fisch was intensified with the increase of the weeds,which inhibited the growth of G.ulalensis Fisch.
中文关键词	甘草 ; 沙区 ; 生长发育 ; 除草
英文关键词	Glycyrrhiza ulalensis Fisch desert area growth weeds removal
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4203117
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227511
作者单位	中国科学院寒区旱区环境与工程研究所沙坡头沙漠试验研究站, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	郭群,张景光,冯丽,等. 不同除草制度对沙区栽培甘草生长发育的影响[J]. 中国科学院西北生态环境资源研究院,2011,31(3):697-702.
APA	郭群,张景光,冯丽,刘扬,贺郝钰,&苏洁琼.(2011).不同除草制度对沙区栽培甘草生长发育的影响.中国沙漠,31(3),697-702.
MLA	郭群,et al."不同除草制度对沙区栽培甘草生长发育的影响".中国沙漠 31.3(2011):697-702.