干旱区生态环境知识资源中心(Arid): 干旱区杨树用材林土壤特性和林木生长对供水的响应

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	干旱区杨树用材林土壤特性和林木生长对供水的响应
其他题名	The Responses of Soil Properties and Tree’s Growth to Irrigation in Poplar Timber Woodland of Arid Region
	王葆芳 1; 杨晓晖 1; 江泽平 1; 郝玉光 2; 张景波 2
ISSN	1003-7578
出版年	2006
卷号	20 期号:6 页码:156-162
中文摘要	经过4年试验,结果表明,(1)供水对土壤水分调控作用明显,土壤各项含水指标均随供水量的增加而增加;(2)通过灌溉可改善土壤的三相比结构和土壤容重;灌溉对总孔隙度影响不明显;(3)灌溉对地下水位的影响显著,灌水前林地地下水埋深为3.46m,而灌水期内地下水埋深在2.36～2.87m之间,在7500m3/hm2·a灌溉定额以下时,不会造成土地次生盐渍化;(4)不同供水量对林木生长的效应是不同的,随灌溉量增加而造成不同程度的正增长;(5)人工林的蒸腾耗水量随供水量的增加而增加;(6)河套灌区杨树速生丰产林的合理灌溉量为7500m3/hm2·a.
英文摘要	4-year of research showed that- (1) Irrigation could regulate soil moisture parameters significantly, soil water content, soil water storage capacity, field water content and effective water amount increased following the increasing of irrigation amount. Effective water amounts afrer 1500, 4-500 and 7500 (mVhrn2 o a) irrigation were 1344 . 6, 2145. 6 and 2441. 8m3; (2) Irrigation could improve soil texture and soil bulk density within 0 - 100 cm soil layer during the irrigation period. Soil bulk density values after 1500 , 4500 and 7500 (m3/hm2 o a) irrigation were 1. 45~1. 51,1. 41 - 1. 47 and 1. 41~1. 44g/cm3 , and irrigation had little influence on total soil porosity; (3) Irrigation had significant influence on water-table. The watertable depth before irrigation was 3. 46 m, while that during irrigation period was 2. 36- 2. 87m, when the irrigation was less than 7500( m3/hm2 o a) , secondary soil salinization would not occur; (4) Tree’s growth parameters had different responses to irrigateion amount. Compared to those with 4500 and 1500C m3/hm2 * a) irrigation, the timber volume with 7500 ( m3/hm2 o a) irrigation increased by 10. 57 and 48. 26 percent, leaf area increased by 24. 49% and 58. 03%, root number increases by 67. 58% and 129. 32% respectively; (5) Water consumption by transpireation of woodland increased following the increasing of irrigateion amount. Annual water consumption amounts after 1500, 4500 and 7500 (mVhm2 o a) irrigation were 1225. 7,1770. 3 and2966. 6 m3/hm2, the water consumption coefficients per timber volume descended as 1500>4500>7500, and water production efficiencies ascended as 1500<4500
中文关键词	内蒙河套灌区 ; 用材林灌溉量 ; 蒸腾耗水量 ; 土壤水分指标 ; 土壤物理性状
英文关键词	Hetao irrigation area irrigation timber woodland water consumption for transpiration soil water parameters soil physical properties
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:2435597
来源机构	中国林业科学研究院沙漠林业实验中心
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219816
作者单位	1.中国林科院林业研究所国家林业局林木培育实验室, 北京 100091, 中国; 2.中国林科院沙漠林业实验中心, 磴口, 内蒙古 015200, 中国
推荐引用方式 GB/T 7714	王葆芳,杨晓晖,江泽平,等. 干旱区杨树用材林土壤特性和林木生长对供水的响应[J]. 中国林业科学研究院沙漠林业实验中心,2006,20(6):156-162.
APA	王葆芳,杨晓晖,江泽平,郝玉光,&张景波.(2006).干旱区杨树用材林土壤特性和林木生长对供水的响应.,20(6),156-162.
MLA	王葆芳,et al."干旱区杨树用材林土壤特性和林木生长对供水的响应".20.6(2006):156-162.