【摘要】 根据苏柳１７２，１９４无性系在江苏洪泽、泗洪，山东泰安、平阴，浙江富阳等地５～１１年生试验林调查材料，对两无性系的生长规律、径阶结构、干形变化和材积方程的选用以及林分成熟进行了研究。结果表明，两无性系均具有明显的早期速生特性，７年生的相对直径分布范围分别是０．５３２～１．２１６和０．５８４～１．３６２；平均ｆ０．１为０．４４３和０．４４４；用作中小径级矿柱林的采伐年龄应在６～１０年。更多还原

【Abstract】 The accretion,diameter class contribution,variation of trunk form,selection and application of standing volume equa-tion and stand maturdtion were studied,bassed on the investigating data of 5-11 years old CL’J- 172’and CL’ J- 194’ plantation in Hongze and Sihong county of Jiangsu province,Taian of Shandong and Fuyang of Zhejiang province. Theresults showed that they were early fast-growing and the relative diameter distribution of 7 years CL’ J- 172’ plantationwas from 0.532 to 1. 216,the one of CL’J-194’ was from 0.584 to 1.362.The mean of CL’ J-172’ was 0.443 andthat of CL’J-194’ was 0.444.The stands about 6-10 years could be cut over for pit wood.更多还原