甘肃高原夏菜芹菜产地环境质量与适应性分析OA

This study aimed to explore the environmental advantages of celery production areas in the Plateau Summer Vegeta-ble region and to provide a scientific basis and theoretical support for standardized cultivation,exploration of regional advantages,and improvement of industrial quality and efficiency.Through literature review and field detection,and with reference to relevant stan-dards and specifications for investigation,monitoring,and evaluation of production environment for green food,the climatic condition of the main celeryproducing areas,Yuzhong County of Lanzhou City and Anding District of Dingxi City,were investigated,and soil and irrigation water quality were analyzed.Results showed that the production area of Plateau Summer Vegetable celery shares very simi-lar climatic characteristic with the Mediterranean coastal region,the origin of celery.The atmospheric environment,soil,and water quality all met the environmental quality standard for green food production area.Soil moisture content ranged from 12 to 31 g/kg,soil pH ranged from 7.9 to 8.6,and cation exchange capacity ranged from 1.9 to 6.4 cmol(+)/kg,with an average of 4.2 cmol(+)/kg.Soil or-ganic matter content ranged from 3.46 to 16.4 g/kg with an average of 13.4 g/kg.Available phosphorus content ranged from 23.7 to 106.1 mg/kg with an average of 71.07 mg/kg.Available potassium content ranged from 103.0 to 311.0 mg/kg with an average of 158.4 mg/kg.According to the soil nutrient classification standard,the soil fertility level of Plateau Summer Vegetable celery belongs to grade 2 to 4.The soil is rich in phosphorus and potassium,indicating overall good fertility status.The content of lead,cadmium,cop-per,total mercury,total arsenic,and chromium in soil were all lower than the risk screening threshold,indicating no heavy metal con-tamination and meeting the environmental quality standard for green food production area.Irrigation water quality was clean and safe.Compared with celery producing areas in central and eastern China with moderate sunlight conditions,the Plateau Summer Vegetable celery production area in Gansu features clean air,soil,and water,long sunshine duration,large diurnal temperature variation,and a cool and dry climate,which are highly suitable for celery growth.Therefore,Plateau Summer Vegetable celery in Gansu possesses unique environmental adaptability advantages.