CAJ | 학술논문

试验以确定简单式屋顶绿地佛甲草Sedum lineare的养护标准为目的,测定其年需水量、灌溉时间,调查生长和病虫害发生状况,确定修剪时间及杂草防除方法.试验结果表明:屋顶绿化基质含水率和佛甲草茎叶含水率无相关性;基质层6 cm,株高8～12 cm,年最适供水量为361.45 mm;基质层10 cm,株高25～30 cm,年供水量为533.90 mm.佛甲草主要发生的是生理病害,常由于积水和过度干旱的交替而发生.主要虫害为蚜虫和蜗牛,但未发现严重危害的现象.秋季适时适度修剪可延长佛甲草的绿色期,并提前返青,其最佳修剪量为株高的1/3～1/2.防除杂草是佛甲草养护十分重要的措施之一.北京地区人工灌溉也是佛甲草必须的养护管理措施,如:返青水、干热季节灌溉和冬灌.
시험이학정간단식옥정록지불갑초Sedum lineare적양호표준위목적,측정기년수수량、관개시간,조사생장화병충해발생상황,학정수전시간급잡초방제방법.시험결과표명:옥정녹화기질함수솔화불갑초경협함수솔무상관성;기질층6 cm,주고8～12 cm,년최괄공수량위361.45 mm;기질층10 cm,주고25～30 cm,년공수량위533.90 mm.불갑초주요발생적시생리병해,상유우적수화과도간한적교체이발생.주요충해위아충화와우,단미발현엄중위해적현상.추계괄시괄도수전가연장불갑초적록색기,병제전반청,기최가수전량위주고적1/3～1/2.방제잡초시불갑초양호십분중요적조시지일.북경지구인공관개야시불갑초필수적양호관리조시,여:반청수、간열계절관개화동관.
The trial goal was to define the conservation standard of Sedum lineare in roof greening. The annual water requirement and irrigation time were determined, the plant growth and diseases and insect pests occurrence were investigated, the pruning time and weeds control method were determined. The results showed that the moisture content of roof greening substrate and plant water content of S. lineare were not correlated. When the substrate was 6 cm and plant height was 8 cm to 12 cm, the annual adaptive watering amount was 361.45 mm. If the substrate was 10 cm and plant height was 25 cm to 30 cm, the annual watering amount was 533.90 mm. There was usually physiological disease on S. lineare induced by the alternation of the water log and excessive drought. The main insect pests were aphid and snail of S. lineare, but no serious damage was observed. Moderate pruning could prolong the green period of S. lineare in autumn. The optimum pruning length was 1/3 to 1/2 of the plant height. Weeds control was an important measure for the conservation of S. lineare. The artificial irrigation was necessary for the conservation management of S. lineare, such as regeneration watering, dry and hot season and winter irrigation.