干旱区生态环境知识资源中心(Arid): 黄土高原人工林深层土壤水分利用研究

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	黄土高原人工林深层土壤水分利用研究
其他题名	Deep Soil Moisture Use of Planted Forests in the Loess Plateau
	杨敏 1; 赵西宁 2; 高晓东 2; 杨世伟 3
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2019
卷号	26 期号:6 页码:100-106
中文摘要	探讨黄土高原人工林的深层土壤水分利用状况,对该区植被恢复的可持续发展具有重要意义。以黄土高原半干旱偏旱区、半干旱区、半湿润区的刺槐林和柠条林为研究对象,通过野外实地调查,分析了不同气候区人工林0 800cm土层土壤水分含量、深层(200800cm)土壤水分消耗量及土壤耗水速率,探究了不同气候区人工林对深层土壤水分的影响。结果表明:(1)3个气候区农地土壤含水量显著高于刺槐林和柠条林。刺槐林、柠条林在2个气候区0800cm土层的土壤水分含量变化范围分别为6.64%~11.01%,6.38%~11.41%,均在半干旱偏旱区平均土壤含水量最低。(2)刺槐林和柠条林的深层土壤耗水量、深层土壤耗水速率均以半干旱偏旱区最高,分别为:808mm,698 mm,32.33mm/a,31.76mm/a。(3)人工林在半干旱偏旱区和半干旱区的植物根系较半湿润区活跃,特别是在0 300cm土层,对土壤水分影响较大。(4)土壤质地是人工林深层土壤水分变化的重要因素之一。黏粒含量与土壤水分呈正相关,砂粒含量与土壤水分呈负相关。半干旱偏旱区、半干旱区、半湿润区的黏粒含量依次增加,砂粒含量则相反。不同气候区人工林对深层土壤水分影响不同,同时受根系和土壤质地影响较大,因此选择合理的人工植被配置模式对深层土壤水的保护和持续利用非常重要。
英文摘要	Deep soil moisture use of planted forest in the Loess Plateau is discussed in this study,which is of great significance to sustainable development of revegetation.Based on field sampling of soil moisture of deep soil layers in the stands of Robinia pseudoacacia and Caragana Korshinskii Kom in the semi-humid zone, semi-arid zone and semi-arid/arid zone of the Loess Plateau,deep soil moisture consumption and deep soil moisture consumption rate were calculated to analyze the effect of afforestation on deep soil moisture in different climate zones.The results are as follows.(1)The soil moisture content of farmland is significantly higher than that of Robinia pseudoacacia and Caragana Korshinskii Kom.in different climate zones.Mean soil moisture contents in the depth of 0800 cm of Robinia pseudoacacia and Caragana Korshinskii Kom. range from 6.64%to 11.01%,from 6.38%to 11.41%,respectively;with the lowest in the semi-arid/arid zone.(2)The deep soil moisture consumption and deep soil moisture consumption rate in the stands of Robinia pseudoacacia and Caragana Korshinskii Kom.are 808 mm,698 mm and 32.33 mm/a,31.76 mm/a, respectively.(3)Roots of the planted forests in semi-arid and semi-arid/arid zones are significantly active than those in semi-humid zones,especially in the depth of 0300 cm layers,which has the great influence on soil moisture.(4)Soil texture is one of key factors affecting deep soil moisture status of planted forests.Soil moisture is positively correlated with the clay and silt contents and negatively correlated with sand content. The clay content increases gradually in semi-arid/arid zone,semi-arid zone and semi-humid zone,while the sand content is opposite.Afforestation has different impacts on deep soil moisture in different climate zones, and the deep soil moisture is greatly influenced by roots and soil texture.Thus,it is very important to choose the suitable vegetation arrangement pattern to protect and sustainably utilize the deep soil moisture.
中文关键词	黄土高原 ; 人工林 ; 深层土壤水分 ; 根系 ; 土壤质地
英文关键词	the Loess Plateau planted forest deep soil moisture roots soil texture
语种	中文
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6583363
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315784
作者单位	1.西北农林科技大学;;西北农林科技大学水利与建筑工程学院, 旱区农业水土工程教育部重点实验室;;, 杨凌;;杨凌, 陕西;;陕西 712100;;712100, 中国; 2.西北农林科技大学;;西北农林科技大学水土保持研究所;;中国科学院水利部水土保持研究所, 旱区农业水土工程教育部重点实验室;;;;, 杨凌;;杨凌;;杨凌, 陕西;;陕西;;陕西 712100;;712100;;712100, 中国; 3.西北农林科技大学水土保持研究所, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	杨敏,赵西宁,高晓东,等. 黄土高原人工林深层土壤水分利用研究[J],2019,26(6):100-106.
APA	杨敏,赵西宁,高晓东,&杨世伟.(2019).黄土高原人工林深层土壤水分利用研究.水土保持研究,26(6),100-106.
MLA	杨敏,et al."黄土高原人工林深层土壤水分利用研究".水土保持研究 26.6(2019):100-106.