different soil surfaces

• 不同沙地表层

different soil surfaces的用法和样例：

例句

1. The study was conducted for different grazing systems in the ecotone of grassland and farmland in Ningxia sandy lands.
   摘要研究了宁夏河东沙地农牧交错区不同放牧方式对土壤环境的影响。
2. The sandy Pinus sylvestris var.Mongolica plantation has no direct relation with soil salinity.
   沙地樟子松人工林衰退与土壤盐分没有直接的关系。