干旱区生态环境知识资源中心(Arid): 河北省土壤温度与干湿状况的时空变化特征

Arid

	河北省土壤温度与干湿状况的时空变化特征
其他题名	SPATIO-TEMPORAL VARIATION OF SOIL TEMPERATURE AND SOIL MOISTURE REGIME IN HEBEI PROVINCE
	曹祥会 1; 雷秋良 1; 龙怀玉 1; 张认连 1; 孙福军 2
来源期刊	土壤学报
ISSN	0564-3929
出版年	2015
卷号	52 期号:3 页码:528-537
中文摘要	土壤温度和干湿状况是表征土壤特性的重要参数,在土壤系统分类中作为诊断土壤某些亚纲、土类及亚类划分的参考依据。基于河北省142个气象观测站1951 2010年的日值气象数据,利用GIS空间分析技术,对河北省近60年的土壤温度和干湿状况的时空变化规律进行了分析。结果表明:(1 ) 19512010年的平均土温和平均干燥度指数呈现上升趋势,且1981 2010年的上升速率均高于1951 1980年。(2)河北省主要有冷性和温性两种土壤温度状况,与19511980年相比,19812010年的温性土壤向北有所移动,移动的距离和面积大约为14.26 km和5 665 km~2。(3)河北省的土壤干湿状况分布具有明显的地域差异,地表干湿状况可分为湿润、半湿润和半干旱三个等级;东部和北部区域气候湿润状况优于西部和南部,也间接表明了土壤的干湿分布状况。该研究结果为土壤系统分类定量化的诊断特性取代传统土壤分类中的地带性概念提供参考。
英文摘要	Soil temperature and soil moisture regime are two important parameters characterizing soil properties, and two important factors affecting physical, chemical and biological processes of soil formation, and can be used to serve as reference and basis for dividing certain soil suborders, soil groups and soil subgroups in soil taxonomy. Besides, as heat and moisture exchanges occur frequently between the soil and the atmosphere, climate directly affects the soil in hydrothermal condition. Therefore, 60 years (19512010 ) of daily meteorological observation data of 142 meteorological observation stations in Hebei Province, annual cumulative mean aridity index and soil temperature at each station was calculated using the Selianinov’s equation and soil temperature interpolation method. Results of the calculation were subjected to spatial analysis using the geostatistic method and then the GIS spatial analytic technology for laws of the spatio-temporal variation of soil temperature and meteorological aridity and humidity, which can not only be cited to verify the research methods used by the precedent researchers, but also be applied to the soil taxonomy. Results show: ( 1 ) during the 60 years the annual mean soil temperature and mean aridity indices displayed a rising trend, with rising rate much higher in the first 30 years than in the second 30 years, which indicates that soil aridity in the province was gradually aggravating; (2) The soils in the province can roughly be divided into two types in terms of soil temperature, i.e. cold soil and warm soil. Compared with the first 30 years, the second 30 years witnessed warm soils expanding 14.26km towards north over an area of 5665 km~2. Air temperature displayed a similar pattern, moving 18.63km towards north over an area of 6539 km~2; And ( 3 ) Soil moisture regime varied significantly from region to region, demonstrating an apparent zonality. Surface soil moisture regime in the province can be divided into humid, semi humid and semi-arid. From the perspective of spatial distribution, areas high in aridity are mainly distributed in the southern part of Hebei and the Sangyang basin in Zhangjiakou, while areas low in aridity are mainly in the low-mountains and hills regions along the south piedmont of the Yanshan Mountains, like the southwest of Chengde, the north of Tangshan,a large portion of the central north of Qinhuangdao and a small portion of the north of Hebei, indicating that the climate is obviously more humid in the east and north parts of the province than in the west and south parts, which also indirectly reveals distribution of soil moisture ; From the perspective of temporal variation, compared with the first 30 years, the second 30 years had aridity index increased by 0.01 ~0.85 in Bashang plateau, the east part of Hebei and areas south to the Handan-Qinghe-Renxian-Pingxiang line, and decreased by 0.01 ~0.59 in the northeast part of the province, North Hebei Plateau and east part of the central south plain,indicating that air moisture regime varied with time, which in turn affected soil moisture regime in the province. It used to be held that the Plateau in Northwest Hebei province was in the category of semi-arid zone and the remaining part of the province could mostly be sorted into semi humid zone, which is different from the findings of this research. The findings of this study could serve as reference for using quantified diagnostic characteristics in the soil taxonomy to replace the concept of zonality in the traditional soil classification.
中文关键词	干湿状况 ; 土壤温度 ; 干燥度指数 ; 时空变化
英文关键词	Soil moisture regime Soil temperature Aridity index Spatio-temporal variation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5419712
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233439
作者单位	1.中国农业科学院农业资源与农业区划研究所, 北京 100081, 中国; 2.沈阳农业大学土地与环境学院, 沈阳, 辽宁 110161, 中国
推荐引用方式 GB/T 7714	曹祥会,雷秋良,龙怀玉,等. 河北省土壤温度与干湿状况的时空变化特征[J],2015,52(3):528-537.
APA	曹祥会,雷秋良,龙怀玉,张认连,&孙福军.(2015).河北省土壤温度与干湿状况的时空变化特征.土壤学报,52(3),528-537.
MLA	曹祥会,et al."河北省土壤温度与干湿状况的时空变化特征".土壤学报 52.3(2015):528-537.