【摘要】 利用田间水量平衡方程,本文对塔克拉玛干沙漠腹地人工草坪水分蒸散进行了初步研究。蒸散总量数据显示,部分覆盖(60％)>全裸地>全覆盖(100％)。从日变化数据来看,植物蒸腾由于能消耗更深层次的水分,其强度的减弱要迟于土壤蒸发。由于特殊的自然条件与灌溉方式,本区草坪的蒸散具有自己的特点,部分覆盖草坪的蒸散量最大。水量平衡分析的数据则表明,渗漏水占灌溉水量中相当大的部分,这说明,提高土壤表层的持水能力,可以有效地提高水分利用效率。更多还原

【Abstract】 By employing field water balance equation, this paper studies on water evapotranspiration of artificial turfgrass in Talimakan desert. The data of evapotranspiration indicates that.: different cover -degree turf has different amount of evapotranspiration. Partially coverd > thougoully bared > totally coverd. The data of daily-variety indicates the lowering of intension of plant transpiration is later than evaporation of soil surface, because transpiration can consume the deeper layer water. Because of special natural condition and irritation cycle in the studied plot, the evapotranspiration (partially coverd turf has the largest amount of evapotranspiration. ) of the turf has special style. The data of water balance alanysis indicates that ratio of amount of leakage to the amount of irrigation is large , which means it is the important factor to improve the rentension capacity of subsurface of soil and rectify irrigation regulation to improve the efficiency of irritated water.更多还原