We measured the cumulated mass(CM,t/hm~2) of moss and litters,along with their maximal water holding capacity(MWHC,t/hm~2) and maximal water holding rate(MWHR,%),in three main types of shrub at different elevations in west.
研究表明:(1)3种类型中,杜鹃灌丛持水性能最强,其苔藓、枯落物和土壤0~40cm最大持水量在各海拔梯度平均为46。
With the increase of disturbance intensity,the cumulative mass and the maximum water holding capacity(MWHC)of moss and litters decreased,soil bulk density increased,and soil water holding capacity decreased.
随着干扰程度的增加,苔藓、枯落物蓄积量及最大持水量下降,土壤容重增加,土壤持水性能下降。
The result showed that Silwet 408 improved excellently the physical and chemical capability,otherwise,the improvement of the surface tension, contact angle and maximum retention by OP-10.
以杀虫单水剂和三唑磷乳油为对象,在它们的稀释液中分别添加7种助剂,测定了药液的表面张力、在水稻叶片上的接触角和最大持留量。