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土壤水分是土壤的重要组成物质之一,也是决定土壤生产力的一个重要因素。土壤中所有物质的运移,包括植物从土壤中吸取养分,都离不开土壤水分的作用,土壤水分状况与植被覆盖和土地利用密切相关。一方面土壤水分状况影响到植物和农作物生长,另一方面植被覆盖和土地利用也影响着土壤水分的含量及其分布,因此如何保持土壤水分在半干旱黄土丘陵区尤为重要。本项研究选择黄土丘陵坡地上3种典型的土地利用结构类型和坡耕地、天然草地和人工林3种主要的土地利用类型,研究了土地利用结构对土壤水分分布的影响和不同土地利用类型的土壤水分状况。
Soil moisture is one of the important constituents of soil and is also an important factor that determines soil productivity. Soil transport of all substances, including plants absorb nutrients from the soil, are inseparable from the role of soil moisture, soil moisture status and vegetation cover and land use are closely related. On the one hand, soil moisture status affects the growth of plants and crops. On the other hand, vegetation cover and land use also affect soil water content and its distribution. Therefore, it is particularly important to maintain soil moisture in semi-arid loess hilly areas. In this study, we selected three typical types of land-use structure and three types of land use types of sloping land, natural grassland and plantation on the hillsides of loess hilly land. The effects of land use structure on soil moisture distribution and different types of land use Soil moisture status.