干旱区生态环境知识资源中心(Arid): 人工柠条林生物土壤结皮地表水文效应的季节转换

Arid

	人工柠条林生物土壤结皮地表水文效应的季节转换
其他题名	Seasonal Conversion of the Effects of Biological Soil Crusts on Surface Hydrology in the Artificial Caragana intermedia Shrublands
	杨东东; 赵伟; 陈林; 王磊; 宋乃平; 杨新囯
来源期刊	西北植物学报
ISSN	1000-4025
出版年	2018
卷号	38 期号:7 页码:1349-1356
中文摘要	人工柠条林地表广泛分布的土壤结皮对地表水文过程有重要的影响。该研究以荒漠草原人工柠条林生物土壤结皮为研究对象,通过有无结皮处理下旱季和雨季表层土壤水文过程的监测以及土壤水文物理特性的分析,进一步在季节尺度上揭示生物土壤结皮地表水文效应的形成及其影响因素。结果表明:(1)人工柠条林表层土壤结皮层水分含量动态在旱季和雨季表现出了截然相反的格局,其持水效应在以小降水为主,土壤蒸发强烈的夏季体现最为典型,但是进入雨季结皮的相对持水效应弱化甚至丧失。(2)由于生物结皮活性的季节转换,人工柠条林表层土壤容重、饱和含水率、总孔隙度在季节尺度上发生了不同程度的变化。(3)无论是旱季还是雨季,生物结皮的存在都会降低土壤水分人渗性能,而无论有无结皮覆盖,雨季土壤水分人渗速率都低于旱季。
英文摘要	Distributed extensively in the artificial Caragana intermedia shrublands, soil crusts play key roles in the hydrological process of earth surface. Taking the biological soil crusts of artificial C. intermedia forests in desert steppe as the research object,this paper studies the form and influencing factors of the surface soil hydrological effects of biological soil crust from the seasonal scale through the analysis of the monitor of the hydrological and physical characteristics of the soil in dry season and rainy season with or without crust processing. Several key results are shown as follows. (1) The dynamics of soil water content in the surface soil of the artificial C. intermedia stands in distinct patterns in the dry season and the rainy season. The water-holding effect is mainly manifested in small rainfall among which the most typical one is in summer with strong soil evaporation, but the relative water-holding capacity of the crust is weakened or even lost when in rainy season. (2) Due to the seasonal conversion of biological crusts activity, the soil capacity, saturated moisture content and total porosity on the surface layer of C. intermedia plantation have changed different degrees on the seasonal scale. (3) Whether in the dry season or the rainy season, the existence of biological crusts will reduce soil moisture infiltration performance,regardless of whether there is crust coverage, the soil moisture infiltration rate in the rainy season is lower than that in the dry season.
中文关键词	荒漠草原 ; 人工柠条林 ; 生物土壤结皮 ; 水文物理特征 ; 水分人渗
英文关键词	desert steppe artificial Caragana intermedia shrublands biological soil crusts hydrological properties infiltration
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6306283
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238491
作者单位	宁夏大学;;宁夏大学;;宁夏大学西部生态与生物资源开发联合研究中心, 西北退化生态系统恢复与重建教育部重点实验室;;西北土地退化与生态恢复宁夏省部共建国家重点实验室培育基地;;, 银川;;银川;;银川, ;;;; 750021;;750021;;750021
推荐引用方式 GB/T 7714	杨东东,赵伟,陈林,等. 人工柠条林生物土壤结皮地表水文效应的季节转换[J]. 宁夏大学,2018,38(7):1349-1356.
APA	杨东东,赵伟,陈林,王磊,宋乃平,&杨新囯.(2018).人工柠条林生物土壤结皮地表水文效应的季节转换.西北植物学报,38(7),1349-1356.
MLA	杨东东,et al."人工柠条林生物土壤结皮地表水文效应的季节转换".西北植物学报 38.7(2018):1349-1356.