早熟禾与假俭草间植草坪效果观察

EFFECT OF INTERPLANTING POA PRATENSIS L .AND FREMOCHIOA OPNIUROIDES HACK IN LAWNS

为解决长沙市历年来草坪青绿期短的问题，在进行多年草坪引种的基础上，根据早熟禾苗温耐寒怕热，在长沙地区７～１０月地面枯黄，１１～６月生长青绿；假俭草抗寒性能差，耐热性能好，在５～１０月生长青绿，１１～４月地面部分枯黄的生长习性，为了延长草坪的青绿期，提高园林价值，降低草坪建植费用，我们用上述二种草进行间植建坪试验，结果：草坪的年青绿期由单一早熟禾２００ｄ左右增加到３３０ｄ，吸滞留灰尘量由单一早熟禾每平方米月２６ｇ增加到６５ｇ，高１．５倍；园林价值提高，建植费用降低，草坪建植费用由原来每平方米０．８元下降到０．６元，生态、经济效益显著。

The interplantation of Poa pransis L.and Fremochioa opniuroides Hack was performed. The resultshowed that the greening period of laws is enlonged from 22 0 to 2 30 days, the dust preservation wasincreased from 26 to 65 grams per square meter of lawn per month,the gardens were envalued while the cost of lawns was cut down from 0.8 to 0.6 RMB per square meter.Therefore significant ecological andecononical effects have been achieved.