Study on Water Consumption Characteristics of Compound Green Space in Urumqi Xinjiang北大核心CSCD

In order to ascertain water consumption characteristics of typical compound green space (CGP) which composed of turf and white elm in Urumqi city. Field irrigation experiment with fixed irrigation frequency and changed irrigation quota was carried out in Hongshan Park Urumqi. The results showed that average daily water consumption (ADWC) of lawn and white elm in CGP increased with the increase of irrigation quota,and showed the same trend of single peak curve (increased first and then decreased with the development of growth period). Cumulative water consumption of CGP in each treatment varied between 668.5~996.4 mm,which increased with the increase of irrigation quota. The ratio of water consumption between lawn and elm in CGP varied from 1:1 to 1:1.2,which increased first and then decreased with the increase of irrigation quota. The crop coefficient of CGP in each treatment during May to September varied between 0.72 and 1.52,and the average value of crop coefficient in each treatment during main growth period increased with the increase of irrigation quota. Considering the water consumption and growth of CGP,in the dry year with 75% rainfall frequency,the suitable irrigation quota of similar CGP with similar maintenance level is 36 mm,and the irrigation period is 5~7 days in Urumqi city. © 2019 Ｊｏｕｒｎａｌ ｏｆ Ｒｅｆｒｉｇｅｒａｔｉｏｎ. All rights reserved.