Above-ground net biomass的用法和样例：
- Rachel who died last week was still above ground.
- It suggested that the highest effieiency of above ground biomass was in the initial stage of growth.
- The results were showed: T. mongolicum and T. gambasum circles could promote the dry above ground biomass of the community obviously.
- I'd bet that I'd find her if she was above ground.
- Occurring above ground or water.
- Every day above ground is a good day.