干旱半干旱区绿洲土壤质量变化与土壤健康评价研究进展  

The Study of Oasis Soil Quality Change and Soil Health Evaluation in Arid and Semi-arid Areas

作　　者：曲文杰[1] 杨新国[1] 

机构地区：[1]宁夏大学西北土地退化与生态恢复国家重点实验室培育基地,宁夏银川750021

出　　处：《北方园艺》2014年第10期180-184,共5页Northern Horticulture

基　　金：宁夏自然科学基金资助项目(NZ1036)

摘　　要：土壤质量动态具有复杂的时空变异性,许多自然和人为的生态过程都会显著影响土壤质量的演变,同时土壤质量自身包含众多在时空上存在显著变异和交互作用的不同属性指标,但是这些属性在土壤质量中的重要程度和相互作用机理仍然没有得到充分认识,土壤质量评价方法依然需要不断完善发展。宁夏扬黄灌区土壤质量的演变存在正反两方面的角力过程,整体、长期的发展趋势依然不明。需要系统开展不同时间尺度下土壤质量演变的规律及其发生机制等方面的研究,以丰富和深化土壤质量动态时空规律性研究,为维护灌区土壤健康与粮食安全提供理论依据。The evolution of soil qualities is highly complicated by space and time scales, and is affected by many natural and contrived courses. The soil qualities include lots of property indexes varying at space and time scales and reacting among themselves,however,the relative importance and reacting mechanism for those indexes have not been understood fully, and the evaluation measures still need to be developed. The evolution of soil qualities in Ningxia Yanghuang irrigating areas includes positive and negative wrestle processes, the whole and long-term currents have not been clear. The law and mechanism of soil evolution at different time scales have to be studied deeply,to enrich the studies of soil quality evolution and provide theory bases for the soil health and food safety in the irrigating areas.

关 键 词：土壤质量 时间尺度 评价指标 干旱半干旱区 

分 类 号：S151.9[农业科学—土壤学]