黑龙港平原东北部小麦、玉米土地生产潜力研究

Study on the land production potential of wheat and maize in the northeast of Heilongang plain

为给提高黑龙港平原东北部小麦、玉米产量提供科学依据。本文以黑龙港平原东北部气象观测数据、土壤理化数据为基础,采用"机制法"对研究区小麦、玉米土地生产潜力进行估算。结果表明:黑龙港平原东北部光合、光温生产潜力较高,降雨量是影响土地生产潜力的主要因素。其中东光县小麦、玉米的土地生产潜力最高,分别为11169、11663 kg/hm^2;任丘市小麦、玉米的土地生产潜力最低,分别为4333、1524 kg/hm^2;东光县小麦、玉米可提升生产潜力最大,分别为42935869 kg/hm^2;景县小麦提升潜力最小,提升潜力为34 kg/hm^2;河间市玉米提升潜力最小,提升潜力为241 kg/hm^2。黑龙港流域东北部小麦、玉米潜力具有较大的发展空间,应利用好光、温、水资源,完善各地区内基础配套设施,发挥该区域土地生产潜力。

The land production potential of wheat and corn in the northeast of the Heilonggang plain was defined to provide scientific reference for further improving the wheat and corn yield in the northeast of the Heilonggang basin.Based on the meteorological data and soil physical and chemical data in the northeast of the Heilonggang river basin,this research adopted the“mechanism method”to estimate the production potential of wheat and corn land in the study area.The results showe that the photosynthetic and light temperature production potential is higher in the northeast of Heilonggang basin,and the rainfall is the main factor affecting the land production potential.Within the area,the land production potential of wheat and corn in Dongguang county is the highest,which are 11169 kg/hm^2 and 11663 kg/hm^2,respectively.The land production potential of wheat and corn in Renqiu city is the lowest,which are 4333 kg/hm^2 and 1524 kg/hm^2,respectively.The production lifting potential of wheat and corn in Dongguang county is the largest,which are 4293 kg/hm^2 and 5869 kg/hm^2 respectively.The wheat in Jingxian county has the smallest lifting potential,which is 34 kg/hm^2.Hejian city has the smallest corn lifting potential,which is 241 kg/hm^2.The potential of wheat and corn in the northeast of the Heilonggang river basin has great development space.We should make good use of light,temperature and water resources,and improve the basic supporting facilities in various areas.