塔落岩黄芪和细枝岩黄芪植株生物量蓄积特性及产量估测模型  

Hedysarum Biomass Accumulation and Yield Estimation

作　　者：黄祖杰[1] 阎贵兴[1] 武保国[1] 周淑琴 

机构地区：[1]中国农业科学院草原研究所,呼和浩特010010

出　　处：《草业学报》1996年第4期35-40,共6页Acta Prataculturae Sinica

基　　金：农业部"八五"重点项目部分内容

摘　　要：研究了毛乌素沙漠塔落岩黄芪.细枝岩黄芪不同生长年限植株的生物量蓄积特性及生物产量与株冠体积相关规律。结果表明,植株生长的前3年生物蓄积量年度间递增率平均为1 000％以上;植株生物量及饲料产量与株冠体积呈显著的正相关:Y=A+B π/12D^2H。The characteristics of biomass accumulation through years and the correlation between the yield and the canopy size of plants were studied for Hedysarum laeve and H. scoparium in the Maowusu Desert. It was observed that the annual rate in biomass accumulation of the species for the first three years of their growth was as high as 1 000% or more. The positive correlation between the forage yield and the canopy size could be expressed by a function as Y=A+BπD2H/ 12.

关 键 词：塔落岩黄芪 细枝岩黄芪 生物蓄积量 产量 

分 类 号：S812.3[农业科学—草业科学] S548.01[农业科学—畜牧学]