干旱区生态环境知识资源中心(Arid): 典型岩溶石漠化区土壤剖面水分和温度动态规律及传输特征

Arid

	典型岩溶石漠化区土壤剖面水分和温度动态规律及传输特征
其他题名	Dynamics Rules and Coupling Transfer Characteristics of Soil Moisture and Temperature on Soil Profile in Typical Karst Rocky Desertification Area
	熊小锋; 李建鸿; 蒲俊兵; 张陶; 王赛男; 霍伟杰
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2020
卷号	27 期号:5
中文摘要	针对岩溶石漠化地区土壤含水量(Soil Water Content,SWC)和土壤温度(Soil Temperature,ST)的野外连续监测及相关研究较少,为深入探讨岩溶石漠化地区SWC和ST的动态变化规律及其耦合特征,在云南省蒙自市岩溶断陷盆地的典型高原石漠化地区择点,对气象因素和10 cm,40 cm,80 cm深度SWC,ST进行了一整年连续监测,结合多元统计和水热传输理论进行了分析。结果表明:(1)高原石漠化地区不同深度的SWC在非集中降雨期浅层大于深层,集中降雨期深层大于浅层。降雨停止后SWC迅速衰减至初始状态,浅层土壤干湿交替迅速,集中降雨有利于深层SWC补给;(2)基于多元统计的冗余分析(Redundancy Analysis,RDA)讨论了SWC和ST的影响因素,结果表明SWC的影响因素主要为降雨、日累计辐射、气温和蒸散发,ST的影响因素主要为气温, 降雨对于SWC的方差解释率仅为39.5%,而气温对于ST方差解释率为77.4%;(3)在土壤物质与能量传输方面,越靠近地表的土壤在热传导方面作用越明显、热储存作用越弱,040 cm深度的土壤基本为向下传热层,4080 cm土壤主要储存热量或向上传热。土壤蒸汽水夏秋季储存、春冬季排放,蒸汽水通量变化曲线与热通量变化曲线趋势近乎相同,ST是蒸汽水运移的主控因素。热量和蒸汽水储存在土壤中,可为石漠化地区的植被恢复提供条件。
英文摘要	The field monitoring and related researches on soil water content(SWC)and soil temperature(ST) in rocky desertification areas with bare rock are in deficiency.We select the typical plateau rocky desertification area in the karst fault basin of Mengzi City,Yunnan Province,and monitored the meteorological elements and SWC and ST continuously at depths of 10 cm,40 cm and 80 cm for a whole year.We analyzed the data by combining multivariate statistics and hydrothermal transmission theory.The results show that:(1)once the rain stops,the SWC quickly decays to the initial state,resulting in alternation of wetting and drying continually in the shallow soil;the concentrated rainfall is beneficial to the deep soil water supply in the area;the shallow ST is affected by meteorological factors and has frequent fluctuation;(2)the influencing factors of SWC and ST are analyzed based on redundancy analysis(RDA);the main factors affecting SWC are rainfall,daily cumulative radiation,air temperature and evapotranspiration;the main factor affecting ST is just the air temperature;the overall interpretation rate of rainfall for SWC is 39.5%,and the overall interpretation rate of temperature for ST is 77.4%;(3)the soil heat conduction in near the surface is more obvious,and heat storage in near the surface is weaker;the soil in 040 cm layer is basically a downward heat transfer layer,while soil in the 4080 cm layer mainly stores heat or transfers heat up.Soil vapor water stores in the summer and autumn,and soil vapor water releases in the spring and winter.The vapor flux curve and the heat flux curve have the synchronous trend,indicating that soil temperature is the main controlling factor on vapor migration.Heat and vapor stored in the soil can support vegetation restoration in rocky desertification areas.
中文关键词	岩溶石漠化 ; 土壤水分 ; 土壤温度 ; 多元统计 ; 耦合传输
英文关键词	plateau rocky desertification soil water content soil temperature coupling characteristics
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6816590
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353874
作者单位	熊小锋, 中国地质科学院岩溶地质研究所, 自然资源部广西岩溶动力学重点实验室, 桂林, 广西 541004, 中国. 李建鸿, 中国地质科学院岩溶地质研究所, 自然资源部广西岩溶动力学重点实验室, 桂林, 广西 541004, 中国. 蒲俊兵, 中国地质科学院岩溶地质研究所, 自然资源部广西岩溶动力学重点实验室, 桂林, 广西 541004, 中国. 张陶, 中国地质科学院岩溶地质研究所, 自然资源部广西岩溶动力学重点实验室, 桂林, 广西 541004, 中国. 王赛男, 中国地质科学院岩溶地质研究所, 自然资源部广西岩溶动力学重点实验室, 桂林, 广西 541004, 中国. 霍伟杰, 中国地质科学院岩溶地质研究所, 自然资源部广西岩溶动力学重点实验室, 桂林, 广西 541004, 中国.
推荐引用方式 GB/T 7714	熊小锋,李建鸿,蒲俊兵,等. 典型岩溶石漠化区土壤剖面水分和温度动态规律及传输特征[J],2020,27(5).
APA	熊小锋,李建鸿,蒲俊兵,张陶,王赛男,&霍伟杰.(2020).典型岩溶石漠化区土壤剖面水分和温度动态规律及传输特征.水土保持研究,27(5).
MLA	熊小锋,et al."典型岩溶石漠化区土壤剖面水分和温度动态规律及传输特征".水土保持研究 27.5(2020).