重庆石漠化区香根草栽植初探

A Preliminary Study of Plantation of Vetiveria Zizanioiaes in the Rocky Desertification Area in Chongqing City

在重庆巫山石漠化地区采用香根草进行栽植试验,并对其生物量进行测定、统计分析,结果表明:1)不同栽植密度处理香根草生物量不同,以30 cm×30 cm处理最大,1 m×1 m处理最小,香根草生物量有随栽植密度减小而减小趋势;3种处理中,香根草地上部分生物量均大于地下部分生物量。2)不同栽植技术处理,香根草生物量不同,以移栽灵处理香根草生物量最大,对照最小。移栽灵和对照处理中,香根草地上部分上物量均大于地下部分生物量,生根粉则相反,地上部分生物量小于地下部分生物量。

Vetiveria zizanioiaes was used to do a planting experiment in the rocky desertification area in Wushan County, Chongqing City, and analysis was made of the biomass of Vetiveria zizanioiaes. The results have shown that： 1 ） the biomasses are different among different testing groups. The biomass of the 30 cm × 30 cm testing group is maximum. The biomass of the 1 m × 1 m testing group is minimum. The biomass will decrease with the decreasing of planting density. The aboveground biomass is more than the underground biomass among three testing groups.