干旱区生态环境知识资源中心(Arid): 干旱区不同供水量下杨树水分效应和生态用水量研究

Arid

	干旱区不同供水量下杨树水分效应和生态用水量研究
其他题名	Study on Moisture Effects and Ecological Water Consumption of Poplar Stands under Different Water Supply in Arid Area
	刘明虎; 张景波; 孙非; 高君亮
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2012
卷号	19 期号:6 页码:58-63
中文摘要	水分是干旱区林木生长的主要限制因子,科学地确定林木的合理供水量是林木获得速生丰产的关键。以乌兰布和沙区的小美旱杨为研究对象,探讨了不同供水量与土壤环境及小美旱杨生长指征的相互关系,结果表明:不同供水量下土壤的增湿效应存在显著差异,1 500 m~3(hm~2·a)和3 000 m~3/(hm2·a)的供水量下的水分补给层主要在50 cm以上土层,而4 500,6 000,7 500 m~3/(hm~2·a)供水量下的水分补给层则为70 cm以上土层;不同处理间各月土壤含水量差异均随供水量的增加而递减,在供水量不变的条件下,随着林龄的增加,耗水量逐年递增;土壤贮水量、土壤有效含水量、田间持水量、生态用水量、叶片鲜重、蒸腾速率、最佳含水量均随供水量增加而增加,土壤温度随供水量增加而递减,其降温幅度在0.31~1.24℃之间。
英文摘要	Water is the main limiting factor for forest growth in arid region. Scientific determination of reasonable water supply is the key to achieve the fast-growth and high-yield of forest trees. Popular’s popular’s of Ulan Buh sandy area was selected as the study object to explore the relationship between the dinerent water supplies and soil environment, growth indications of Populus popular’s. The result showed as follows: there were significantly differences of humidification effect of soil between different water supply amounts. Water supply layer mainly occurred in soil layer of 050 cm with water addition of 1 500 ma~3/(hm~2·a) and 3 000 m~3/(hm2·a), whereas it occurred in soil layer of 070 cm with the water supply rates of 4 500, 6000 and 7500 m~3/(hm2·a). Soil moisture differences of each month between the different treatments were decreasing with the increase of water supply. Water consumption has been increasing year by year with increase of the stand age under the same water supply rate. Soil water storage, soil available water, field capacity, ecological water consumption, leaf fresh weight, transpiration rate and the optimum moisture content index increased with the increase of the water supply quantity. Soil temperature decreased with the increases of water supply quantity, and drop range of temperature was between 0.31 and 1.24℃.
中文关键词	干旱区 ; 小美旱杨 ; 供水量 ; 水分指标 ; 生态用水量
英文关键词	arid area Populus popular water supply water index ecological water consumption
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:4722467
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/2XILL650/228643
作者单位	中国林业科学研究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	刘明虎,张景波,孙非,等. 干旱区不同供水量下杨树水分效应和生态用水量研究[J]. 中国林业科学研究院沙漠林业实验中心,2012,19(6):58-63.
APA	刘明虎,张景波,孙非,&高君亮.(2012).干旱区不同供水量下杨树水分效应和生态用水量研究.水土保持研究,19(6),58-63.
MLA	刘明虎,et al."干旱区不同供水量下杨树水分效应和生态用水量研究".水土保持研究 19.6(2012):58-63.