Water Consumption Characteristics of Common Lawns in Dalian
A micro-lysimeter experiment was conducted to study the water consumption characteristics of a multi-species lawn in Dalian Labor Park. The dynamic changes of soil moisture and water consumption in the herbage plants within the evaporating dish were analyzed according to the water balance principle. Results indicated that daily water consumption of the herbage plants on sunny days was a little bit higher than that on medium sunny ones, but the herbage plants on both sunny days and medium sunny days showed more water loss than those on cloudy days. The daily water consumption during June and September was higher than that in May or October, Eighty percent of water loss happened during the daytime on sunny and medium sunny days, while the proportion went down by 10 percent on cloudy days due to the increase in water loss at night. The water consumption of the herbage plants in August was the highest, and then followed by September, July,June, May, and October from high to low. July exhibited less water consumption because of more precipitations and cloudy weather conditions. The total water consumption of the multi-species lawn reached 274.19 mm during the growing season.
DalianMicro-lysimeterWater consumptionUrban green spaces