半干旱黄土丘陵区土壤水分动态变化研究综述

Review of the soil moisture dynamic variation in semi-arid hilly loess region

水分是黄土高原地区植被恢复与重建的重要限制因子,由于半干旱黄土丘陵区的土壤水分供给的有限性,使它成为植物生长和生存的限制性因素.因而,对土壤水分的研究具有十分重要的意义.从土壤水分的测试技术和土壤水分的动态变化研究方面进行综述,并且阐述了水分有效性的研究进展,为进一步研究提供依据.

Water is a crucial factor affecting the restoration and regeneration of ecological environment in the loess areas. Soil moisture content is generally a restrictive factor to the growth of plants because of its limited supply in the loess areas. Therefore, it is of significance to study soil moisture content. In this paper, the previous studies on the soil moisture dynamic variation and monitoring techniques were reviewed. And water availability is discussed in this area. The problems and further working direction were pointed out.