结皮层 meaning in Chinese

crust

Characteristics of salt crust layers in the forests irrigated with saline water in mobile desert
流动沙漠地区灌溉林地盐结皮层特征的初步研究
The function of desert microbiotic crusts in erdos was analyzed , the results ahowed that : microbiotic crusts consist of fine sand and thick powder sand , but differs with the wind - drift sand , wind - drift sand are coarse sand and fine sand ; microbiotic crusts influence the rainfall distribution again and effect on the evaporation of infiltration moisture ; microbiotic crusts has the power of water conservation and the function of enrichment of nutrients
摘要本文对鄂尔多斯沙漠生物结皮作用进行了初步研究，结果表明结皮层的机械组成以细沙和粗粉沙为主，而流沙以粗沙和细沙为主；生物结皮层影响降水的再分配作用，并影响入渗水的蒸发规律；生物结皮层县有较好的保水特性和养分富集作用。