The physical chemical indicators relate to the abiotic environment 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。
Drought, low temperature and high salt are adverse abiotic environment 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。
Abiotic stresses, such as drought, salinity, extreme temperatures, chemical toxicity, and oxidative stress, are serious threats to agriculture and result in the deterioration of the environment.
干旱、盐害、极端温度、化学毒害和氧化胁迫等非生物胁迫严重影响农业生产，并导致环境退化。
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