The a im o f this paper is to prov ide the data that the transplant advantage in sou thw est arid ity area of Chinaso that shoot? s trace e lement and nutritional components ofw ine bamboo, Oxy tenanthera braunii, through thew in terespecially under p lastic film mulch ing condit ion w eremeasured. The resu lts show ed that p last ic film mulch ing cou ldprecede in t ime o f shoot germ ina tion and enhance the shoot qua lity such as improv ing absorbab ility of trace elemen,tincreasing content o f prote in, sugar, coarse f iber and ma jor ity o f am ino acid. And a lso, it cou ld acce lerate thedevelopment of shoo t responding to the difference o f base d iame ter. W ine bamboo? s trace elementw as rich, and thecontent o f crude fat and sugarw ere h igher compared w ith the shoot ofPhy llostachy s edulis, P. edulis cv. p achy loenand Dendrocalamus brand isii w ith the closer relat ionship that the ex cret ing sap contained about 5% a lcoho l throughnew cutt ing stem. W ine bamboo germ inated shoo ts in w ho le year at Mo jiang Base if mother plan t could absorbenough nutrition resulting in great consumption o f nutriment and physiolog ical turbulence like decreasing am ino ac idcontent under an inaptitude condition. So the am ino acid content w as low w hich w ere 1. 3%, 1. 04% undertreatment of plastic film mu lching and the contro l respectively, although a ll kinds of necessary am ino acid w ereincluded. Shoot o fw ine bamboo had a spec ial taste for its low er tannin conten t and higher aspartic acid and g lutam icac id contents. Synthetica lly, short time of plastic film mu lching show ed to be amethod to provide the necessary so ilw ater and mean temperature and do good for development and soil qua lity though w inter.

对酒竹钩梢带篼移植后枝叶数量分布和酒竹笋个体生长发育的可塑性规律进行了研究,探讨了基于个体生长的经验模型参数的特征。结果表明:去除顶端优势并经过1 a多恢复生长的酒竹,其各枝盘的枝叶数量分别与枝盘号存在着乘幂关系;钩梢后的酒竹植株自身具备补偿作用,这种补偿作用对酒竹适应我国半干旱区生境十分关键,钩梢后剩余留枝盘数与累积枝叶数量占完整植株枝叶数量比例的关系可用二次函数表达;枝叶数量的密度分布函数可直接运用Weibull和Gamma概率密度函数进行拟合,拟合效果较好。可以利用胸径参数进行酒竹地上部分各构件生物量的预测,但1年生竹秆和2年生竹枝没有达到相关。酒竹出笋量动态和高生长曲线呈"S"形,根据Logistic动态方程的一阶、二阶导数将出笋时间划分为初期、盛期和末期,进而得到笋－幼竹的高生长方程的3个阶段渐增期、快增期、缓增期;酒竹出笋期约为150 d左右,基本与移植当地的雨季重叠,笋期的第48 51天完成初期,盛期出现在第69 72天,此时出笋速度达到最高峰,末期则出现在第90 93天。在不同的出笋期,酒竹高生长表现出对雨量的可塑性响应:出笋初期以前,酒竹笋发育比较迟缓,特别是渐增期需要25 26 d,而缓增期只需12 d就可完成;盛期酒竹笋的高生长几乎没有渐增期的准备,直接进入直线的快速生长期,且缓增期历时也短,仅为9 10 d;末期酒竹笋表现则与初期的酒竹笋截然相反,其缓增期的明显延长说明受到环境的胁迫。