土壤水分空间异质性的研究进展要点S.doc

恢复生态学论文 土壤水分空间异质性研究进展 　 11级生科2班 学号：201314010003 姓名：李敏 土壤水分空间异质性的研究进展 李敏，刘蕊，马次香 （昆明学院生命科学与技术系11级生科2班） 摘要：土壤的形成过程包括物理过程、化学过程和生物过程。由于不同地区在气候、母岩、地形、植被和动物等方面的不同,形成了各种土壤类型,导致土壤性质存在明显的差异。即使在同一土壤类型,不同的时间和不同的空间上土壤的某些性质仍然不同。土壤水分的空间分布格局及其影响因素表明土壤具有时间上和空间上变化的特点。在进行土壤调查时,同一土壤类型上不同的空间位置取样所测定的土壤养分和水分等因子常常具有较大的差别,除去取样和测定过程中的误差外,还存在着土壤本身的变化,这种变化称为土壤空间异质性或空间变异性。土壤空间异质性是土壤重要的属性之一。研究土壤空间异质性The research progress of soil moisture spatial heterogeneity Li min, Liu rui, Ma cixiang (kunming college of life science and technology of class 2 grade 11 raw) Abstract: the formation of soil including physical process, chemical process and biological process. Due to different regions in climate, parent rock, topography, vegetation, and the different animals and so on, has formed a variety of soil types, there are significant differences in soil properties. Even in the same soil type, different time and different space on certain properties of soil is different. Spatial distribution pattern of soil water and its influencing factors, the survey shows that the soil has the characteristics of the change in space and time. When soil survey, the same soil types in different space sampling determination of soil nutrients and moisture factor often has a larger difference, eliminate the error in the process of sampling and measurement, there is the change of the soil itself, this change is called the spatial heterogeneity of soil or spatial variability. Soil spatial heterogeneity is one of the important attribute. According to the different terrain research on soil moisture spatial heterogeneity. And because we only limited access to relevant information combined with his own thoughts to make reasoning test and verify. Key words: soil moisture, different terrain, soil moisture spatial heterogeneity and different terrain analysis, are reviewed 土壤水分是连接大气圈与生物圈的重要纽带，是气候系统中不可或缺的一个关键参数，其在空间上的分布受到植被或土地利用、剖面曲率、高程、气象因素、地形、土壤、人为活动等