干旱区生态环境知识资源中心(Arid): 河西走廊绿洲杨树防护林内玉米营养生长的变化及其成因

Arid

	河西走廊绿洲杨树防护林内玉米营养生长的变化及其成因
其他题名	Variation and Reasons of Maize Vegetation Growth in Poplarmaize System in Heixi Corridor Desert Oasis of China
	丁松爽; 苏培玺
来源期刊	西北农业学报
ISSN	1004-1389
出版年	2010
卷号	19 期号:8 页码:55-60
中文摘要	对河西走廊绿洲杨树防护林(南北走向)内13个位置的玉米在营养生长阶段叶面积和株高变化进行了研究,结果发现,不同方位和不同距离上玉米营养生长受影响程度不同.杨树抑制了东、西两面与其毗邻玉米的营养生长;杨树东面玉米的营养生长比中部和西面迅速,其中东面5m处玉米营养生长期末单株叶面积达到0. 43m~2,营养生长显著加强.从玉米生理生态参数变化方面对以上变化成因进行分析,表明防护林内气温空间变化是导致玉米叶面积和株高增长产生变化的根本原因.上午杨树西面温度低、东面温度高,导致前者玉米叶面积较小、后者则显著增大;而中午气温的空间变化则直接造成了杨树西面玉米植株较矮、东面较高的生长规律
英文摘要	Variations of maize leaf area and height during vegetation stage were studied on thirteen locations within poplar-maize system of North-south-trending in Hexi Corridor desert oasis of China. The results showed that, the impact degrees of poplar trees on vegetation growth of maize were different from their direction and distance. Vegetation growth of maize neighboring to trees was restrained significantly. All the maize plants at the eastern side of trees, whose vegetation growth were promoted and with a maximum leaf area of 0.43 m2 at 5 meters eastern side (E5) especially, showed rapid growth rate than the middle and western locations. The reasons were analyzed with eco-physiological parameters and found that air temperature change within the system was the basic reason of variation in maize leaf area and height. In the morning, the temperature of western side of tree was lower; while the eastern side was higher (e.g. the temperature of E1 was even 7.1℃higher than W1), which resulted in lower leaf area at western side and higher at eastern side respectively. As for plant height, the basic reason of lower at western side and higher at eastern side was the spatial variation of air temperature during midday
中文关键词	河西走廊绿洲 ; 杨树 ; 玉米 ; 营养生长 ; 叶面积 ; 空气温度
英文关键词	Heixi Corridor desert oasis Poplar tree Maize Vegetation growth Leaf area Air temperature
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:3996477
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/2XILL650/225770
作者单位	中国科学院寒区旱区环境与工程研究所临泽内陆河流域研究站,植物逆境生理生态与生物技术实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	丁松爽,苏培玺. 河西走廊绿洲杨树防护林内玉米营养生长的变化及其成因[J]. 中国科学院西北生态环境资源研究院,2010,19(8):55-60.
APA	丁松爽,&苏培玺.(2010).河西走廊绿洲杨树防护林内玉米营养生长的变化及其成因.西北农业学报,19(8),55-60.
MLA	丁松爽,et al."河西走廊绿洲杨树防护林内玉米营养生长的变化及其成因".西北农业学报 19.8(2010):55-60.