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1982年第2次全国土壤普查时河北省高碑店市耕地有效铁含量为6.22 mg/kg,处于中等水平。经过30 a的农业生产,高碑店市的农业产业结构发生了巨大变迁。为了明确高碑店市土壤有效铁含量的现状,2011年采集高碑店市13个乡镇的600份土壤样品进行了分析化验,并利用统计学方法对其土壤有效铁含量进行了评价。结果表明:2011年高碑店市13个乡镇的土壤有效铁平均含量为5.27 mg/kg,较1982年第2次全国土壤普查时有效铁平均含量(6.22 mg/kg)有所降低,处于第2次全国土壤普查标准的3级水平;13个乡镇中发展特色农业的东马营镇有效铁含量变化稍大。针对近30 a来土壤有效铁平均含量下降的状况,提出了对于土壤有效铁含量变化应给予重视的建议,并结合高碑店市当地农业产业结构提出了改良土壤环境和针对性施用铁肥解决农业发展中土壤缺铁的对策。
In the second national soil survey in 1982, the available iron content of cultivated land in Gaobeidian, Hebei Province was 6.22 mg / kg, which was at medium level. After 30 years of agricultural production, the agricultural industry in Gaobeidian has undergone tremendous changes. In order to clarify the status of soil available iron content in Gaobeidian, 600 soil samples from 13 townships in Gaobeidian were collected and analyzed in 2011, and their soil available iron content was evaluated by statistical methods. The results showed that in 2011, the average content of soil available iron in 13 townships in Gaobeidian was 5.27 mg / kg, which was lower than the average content of available iron in the second national soil survey in 1982 (6.22 mg / kg) 2 times the national soil survey standard level 3; 13 townships in the development of characteristic agriculture Dongmaying effective iron content slightly larger. Aiming at the situation that the average content of soil available iron decreased in the recent 30 years, some suggestions on how to change the effective iron content in soil should be put forward. Combining with the local agricultural structure in Gaobeidian City, the paper puts forward the suggestions of improving the soil environment and using iron fertilizer Countermeasure of Soil Iron Deficiency in Agricultural Development.