摘要
采用与样方法(500m ̄2)实测结果的比较,研究分析了无样地法的中心点四分法在山东落叶阔叶木林群落调查中的应用。结果表明:中心点四分法具有较高的精度和可靠性,同时又省时省力,适用山东落叶阔叶杂木林,并利用种——点数曲线确定山东落叶阔叶杂木林的最小点数为10个。
Conpared with the resuIts of plot sampling method(500 spuare meters),this pa-per deals with the application of point centred quarter method of plotless sampling method in theinvestigation of Shandong fdll-leaf broad-leaf complex forest.The results are as follows:pointcentred quarter method has high precision and is reliable in saying time and labor,it can be usedfor community investigation in the fall-leaf broad-leaf comlex forest.The minimal point deter-mined by species-point number Shandong fall-leaf broad-leaf complex forest is 10。
出处
《山东师范大学学报(自然科学版)》
CAS
1995年第2期178-181,共4页
Journal of Shandong Normal University(Natural Science)
关键词
杂木林
群落
山东
无样地法
植被调查
fall-leaf broad-leaf complex forest community
poit centred quartmethod
importance value
coefficient of community
minimal point