干旱区生态环境知识资源中心(Arid): 辽西半干旱地区典型林分土壤水分空间分布特征

Arid

	辽西半干旱地区典型林分土壤水分空间分布特征
其他题名	Spatial Distribution Characteristics of Soil Moisture under Typical Forest Stands in Semi-arid Region of Western Liaoning
	刘青柏; 刘明国
来源期刊	沈阳农业大学学报
ISSN	1000-1700
出版年	2016
卷号	47 期号:1 页码:49-56
中文摘要	为研究不同林分类型土壤水分特征对干旱地区的生态恢复的影响,以辽西半干旱地区油松刺槐混交林、油松纯林、刺槐纯林、山杏纯林为试验对象,对其0~100cm剖面土壤水分动态进行定位观测,采用统计描述、相关性分析、聚类分析及半方差分析等方法进行研究与分析。结果表明:在4~10月间,研究区各林分类型土壤含水量在0~100cm剖面上和无林地有极显著(p<0.001)或显著差异(p<0.05);在0~40cm以内的4个土层,无林地土壤含水量变异系数均大于各林分类型,而40~100cm的6个土层含水量变异系数均大于无林地;各土层含水量相关分析表明:0~10,10~20,20~30cm与各土层呈显著或极显著正相关;据此,建立了预测30~100cm深的7个土层含水量的回归方程;聚类分析将土壤剖面化分为水分速变层、过渡层和稳定层;采用半方差分析法将不同月份0~10cm和10~20cm土壤含水量分布模拟为指数、线性和球状模型,较好地反映了土壤水分水平空间变化特征。综合分析判定各典型林分土壤自然含水量排序为油松刺槐混交林>山杏纯林、油松纯林>刺槐纯林>无林地。
英文摘要	The experiment was conducted to study the changes of soil moisture in different forest stand types on ecological recovery in westerm Liaoning. Four forest stand types, Pinus tabulaeformis and Robinia pseudoacacia mixed forest, Pinus tabulaeformis forest, Robinia pseudoacacia forest and Prunus sibirica forest in Western Liaoning region were selected as the study objects, and non-forest stand was selected as control. Soil depth of 0-100cm profile was used to determine the soil moisture dynamic and distribution law of semi-arid areas by locating observation. Statistical description, correlation analysis, clustering analysis, semi-variance analysis and other methods were used in this study. The results showed that, in the period from April to October, the soil moisture content in all 10 layers in the four forest types were all significantly higher (p<0.001) than that in non-forest stand. The variable coefficients of the soil moisture content in non forest stand were greater than that of the forest stands in the four layers from 0cm to 40cm, while the variable coefficients of the soil moisture content in the forest stands were greater than that of non forest stand in six layers from 40cm to 100cm. Correlation analysis showed there were significant relationships between 0-10, 10-20, 20-30cm layers and other soil layers in soil moisture content. Cluster analysis showed that the soil profiles could be divided into the moisture quick changing layer, the moisture transition layer and moisture stability layer. Therefore, we established the linear regression equations of predicting the soil moisture content in seven layers from 30cm to 100cm. Semivariance analysis results showed that soil moisture content could be simulated by three kinds of mathematical simulations namely the linear models, the exponential models and the spherical models of different month in the surface layer and the subsurface layer, and its simulated effects were advantage for the forest soil moisture spatial variation characteristics in level. Through comprehensive analysis, we predicated the rank in soil moisture content Pinus tabulaeformis and Robinia pseudoacacia mixed forest >Prunus sibirica forest、Pinus tabulaeformis forest >Robinia pseudoacacia. forest>non-forest stand.
中文关键词	林分类型 ; 土壤水分 ; 空间分布 ; 数学模拟 ; 半干旱地区
英文关键词	forest stand types soil moisture spatial distribution mathematical simulation semi-arid region
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture ; Forestry
CSCD记录号	CSCD:5654301
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234707
作者单位	刘青柏, 沈阳农业大学林学院, 沈阳, 辽宁 110161, 中国.; 刘明国, 沈阳农业大学林学院, 沈阳, 辽宁 110161, 中国.
推荐引用方式 GB/T 7714	刘青柏,刘明国. 辽西半干旱地区典型林分土壤水分空间分布特征[J],2016,47(1):49-56.
APA	刘青柏,&刘明国.(2016).辽西半干旱地区典型林分土壤水分空间分布特征.沈阳农业大学学报,47(1),49-56.
MLA	刘青柏,et al."辽西半干旱地区典型林分土壤水分空间分布特征".沈阳农业大学学报 47.1(2016):49-56.