The physical chemical indicators relate to the abioticenvironment of an ecosystem.
物理化学指标是检测生态系统的非生物环境的指标。
2
Drought, low temperature and high salt are adverse abioticenvironment that greatly affected the growth of plant and the productivity and quality of crops.
干旱、低温和高盐是目前影响农作物的主要非生物限制因子,它严重影响作物的生长发育,以及产量和品质。
3
Heredity is controlled by genes, but their expression is turned on and off throughout life depending upon biotic and abiotic factors in environment.