摘要： <正>檵木是我国亚热带森林生态系统灌木层中常见的树种之一。为简单、方便且准确地估算其生物量一笔者以冠幅（C）和植株高度（H）两个形态因子作为变量，用数理统计方法筛选枝、叶、地上生物量的最佳估测模型。结果表明：CH复合变量与生物量相关性较好，以CH为自变量的乘幂曲线回归模型W=b0（CH）b1为檵木最佳生物量估测模型，荚枝、叶、地上部分生物量的最佳估测模型分别为W1=0.000796（CH）1.1878、W2=0.0114（CH）0.7581、W3=0.0024（CH）1.0973，与常用的D。H（地径平方与植株高度乘积）作为变量的生物量模型相比，精度基本一致。且212作简便性好。此外，采用CH估测地上生物量可取得较高的精度，亦体现了灌木形态近似圆柱形的形态特征。但该模型在立地条件差异较大或进行变量外推时应做进一步的验证。

Abstract: The principle of sustainable development of forest resources-environment-economy complex system in Jiangsu province were described. The composition of FEES and the interconnected relations between its elements were analyzed. The structural model of the system using the improved method of interpretive structural modeling was set up in order to make the relation of elements clear and quantitative to research further.

中图分类号: 

• N94

• F326.25