人工沙棘林灰色生长模型的建立与预测

Establishment and Forecast on Grey Growth Model of Artificial Sea Buckthorn Forest in Loess Remaining Plateau and Gully Distriet

本文对黄土残塬沟壑区人工沙棘林进行了系统研究,建立了沙棘树高、地径、生物量、根量和根长的 Verhaulst 灰色预测模型,预测了这5个生长指标的速生期、生长上限值、停止生长林龄和最佳轮伐周期,并对生物量、根量建立了辅助生长模型。

The paper makes a systematic researches upon the artificial Sea buckthorn forest in Loess Remaining Plateau and Gully District,and es- tablishes the Verhaulst grey forecast model on height,diameter,biomoss, total root biomoss and total root length of Sea buckthorn,and forecasts the peak period of growth,upper growth limit and slopping growing ages of the 5 growth indexes,and determines the best cutting period of rotation,also,establishes supplementary increment model of the biomass and root aiomass.