盐生植物灌丛对土壤养分和盐分空间分布的影响及其机制研究进展

Research Progress of the Effects of Halophyte Shrubs on Spatial Distribution of Soil Nutrients and Salts and Their Mechanisms

基于“肥岛”“盐岛/谷”的概念主要综述盐生植物灌丛下土壤养分、盐分含量的空间分布特征,重点阐述盐生植物冠下土壤“肥岛”“盐岛/谷”形成的生物因素(植物物种、植物根系、植物生长状况、动物微生物活动)和非生物因素(离子的化学性质、地下水、气候、成土母质、土壤特性、地形地貌、外源性、含水量等),最后对下一步研究做了展望。

Using halophytes to improve saline soil conforms to the construction concept of ecological civilization that respects nature,conforms to nature and protects nature.Based on the summary of"Fertility island"and"Salinity island/Valley",the spatial distribution characteristics of soil nutrient and salt content under halophyte shrubs were summarized.The biological and abiotic factors of the formation of"Fertility island"and"Salinity island/Valley"under canopy of halophytes were elaborated.The biological factors included plant species,plant root system,plant growth status,animal microbial activities,and the abiotic factors include chemical properties of ions,groundwater,climate,parent material of soil formation,soil properties,topography,exogenous,water content and so on.At the end of this paper,researching directions of this field in the future was prospected.