原油是经过分段加热加压后输送的,管道离地面一般在60cm左右,管壁温度在45℃左右,在油管沿线有大量热能向耕作层传导。调查发现,凡在管道附近生长的农作物,都比周围的植株发育快、长势旺、成熟早,其影响面宽一般在2～3m,其地温比周围高2～6℃。我市境内一条由河南南阳油田向荆门炼油厂输送原油的地下管道,长约20公里,为了充分开发这一有利能源,我市蔬菜 Crude oil is delivered after the heating and pressurization in sections. The pipe is about 60cm away from the ground and the wall temperature is about 45 ℃. A large amount of heat energy is transmitted to the tillage layer along the pipe. The survey found that all the crops growing near the pipelines developed faster than the surrounding plants, growing vigorously and maturing early. The affected area was generally 2 to 3 meters wide, and the ground temperature was 2 ~ 6 ℃ higher than the surrounding area. In our city, an underground pipeline transporting crude oil from Henan Nanyang Oilfield to Jingmen Refinery is about 20 km long. In order to fully exploit this favorable energy, the vegetables in our city