AN APPROACH TO THE REASONABLE LAYOUT OF HEATING GREENHOUSE IN CHINA

It is not suitable to develop heating greenhuose in the high-latitudinal area of China, including the Northeast part, Inner Mongolia the northern part of Gansu Province and Xinjian Weiwuer Autonomous Region, for total solar radiation is insufficient and the air temperature is extremely low in winter, so it needs a long period to heat the greenhose. In Liao Dong penisula and Huabei Plains, though solar radiation and sunshine hours are sufficient, but the temperature is still too low in winter, to develop greenhouse on a large scale. It is possible to select some areas with favourable microclimate condition to develope greenhouses.In Jianghuai Plains, the poor sunshine is a limiting factor to vegetable production in heating greenhouse. In Huanghuai region (32°N—37°N), sunshine is enough and temperature condition is better than those in Huabei. It may be suitable to develop heating greenhouse. So Huanghuai region can be a winter heating greenhouse vegetable producing base in China.