再生水水面无土种植草坪的研究

该研究于2004年9月1日—2005年11月30日在北京林业大学草坪研究所实验站人工水池内进行.在不施肥不灌溉条件下,在再生水水面上利用水培浮板无土栽培高羊茅、草地早熟禾、匍匐翦股颖,3种草坪草均能正常生长.其中,水面栽培条件下高羊茅的叶绿素含量、叶片含水量、干重等指标均显著高于土培条件;草地早熟禾和匍匐翦股颖除叶片含水量与盖度大于土培条件外其余指标变化不显著;由于水面栽培的3种草坪草盖度的显著差异,表明匍匐翦股颖和高羊茅较草地早熟禾更适宜水面浮板无土栽培.

Cultivating turfgrass on the surface of reclaimed water.

The study was carried out at the unnatural pond at Turf Station of Beijing Forestry University from September 2004 to November 2005.Three kinds of turfgrass(Kentucky bluegrass,tall fescue and creeping bentgrass)were cultivated on the surface of reclaimed water(secondary treated wastewater)on the floating beds without fertilization and irrigation. All of the above turfgrass can grow normally. Among them, chlorophyll content, leaves water content, leaves dry weight of tall fescue on the floating bed cultivation conditions were significantly higher than that growing in the soil.Except leaves water content and coverage, the remaining items of Kentucky bluegrass and creeping bentgrass aren’t changed dramatically. The obvious different coverage of three plants on floating bed cultivation means that creeping bentgrass and tall fescue are more appropriate for floating bed cultivation than Kentucky bluegrass.