干旱区生态环境知识资源中心(Arid): 渭北旱塬花椒-小麦复合系统中林木及作物根系空间分布特征研究

Arid

	渭北旱塬花椒-小麦复合系统中林木及作物根系空间分布特征研究
其他题名	Study on the Spatial Distribution Root System of Chinese Prickly Ash and Wheat Agri-forestry in Weibei Arid-plain Area
	朱首军 1; 张卫 2
来源期刊	西北林学院学报
ISSN	1001-7461
出版年	2005
卷号	20 期号:1 页码:16-19
中文摘要	根据样地调查,研究了花椒-小麦复合系统根系的空间分布特征.结果表明,从根系密集区来看,花椒林带根系和小麦根系在垂直分布上基本处于同一分布层;在水平方向上,花椒吸水根系绝大部分分布在林缘附近到0.5倍树高范围内,而小麦愈靠近林缘根系愈少.花椒与小麦的根系分布均集中在0～20cm的表层,在农林复合的配置选择上,应当考虑这一因素,冬小麦的种植区域应当在花椒1倍树高范围以外,以避免两者之间的水肥竞争问题.
英文摘要	This thesis, based on field experiment, deals with the spatial distribution of roots of prickly ash-wheat in agri-forestry system. It discovers that; ( 1 ) both the conglomeration zone of tho prickly ash root system and that of wheat root system are basically located in the same layer vertically; (2)part of prickly ash root system, which absorbs water, is mostly distributed within the area which, horizontally, from the stem to the outward, covers as far as half of the height of the tree, while that of wheat is distributed less when it is closer to the stem. Since both prickly ash and wheat root systems center around in the surface layers from 0 to 20 cm deep, the concern that prickly ash and wheat may compete for fertilizer and water should be put into consideration. Therefore, to choose a more rea-sonable agriculture-forestry compounding allocation, the wheat field should be as far as the height of prickly ash tree.
中文关键词	渭北旱塬 ; 复合系统 ; 根系分布特征
英文关键词	Weibei arid-plain area agri-forestry system characteristics of the spatial distribution of root system
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:1864593
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206753
作者单位	1.西北农林科技大学,资源与环境学院, 杨陵, 陕西 712100, 中国; 2.青海省水保局, 西宁, 青海 810001, 中国
推荐引用方式 GB/T 7714	朱首军,张卫. 渭北旱塬花椒-小麦复合系统中林木及作物根系空间分布特征研究[J]. 西北农林科技大学,2005,20(1):16-19.
APA	朱首军,&张卫.(2005).渭北旱塬花椒-小麦复合系统中林木及作物根系空间分布特征研究.西北林学院学报,20(1),16-19.
MLA	朱首军,et al."渭北旱塬花椒-小麦复合系统中林木及作物根系空间分布特征研究".西北林学院学报 20.1(2005):16-19.