改进邻体干扰模型在北京侧柏水源涵养林中的应用  

Application of Improved Neighborhood Interference Model to the Water Conservation Forest of Chinese Arborvitae in Beijing

作　　者：宁金魁[1] 黄新峰[1] 刘旭升[1] 郑小贤[1] 高甲荣[2] 徐军亮[1] 杨彦利 

机构地区：[1]北京林业大学资源与环境学院,北京100083 [2]北京林业大学水土保持学院,北京100083 [3]洛阳市林业局,河南洛阳471000

出　　处：《林业资源管理》2004年第1期35-38,共4页Forest Resources Management

基　　金：国家自然科学基金项目"水源涵养林经营理论研究"(30170773);北京林业大学研究生基金资助项目"北京地区水源涵养林经营模式的研究"共同资助

摘　　要：以北京市密云半城子侧柏水源涵养林为研究对象,提出了改进的邻体干扰模型,着重讨论了干扰指数与侧柏的胸径、树高、生境利用率等因子的关系。结果表明,侧柏林内的邻体干扰指数与林木的胸径、树高、生境利用率呈负相关关系。本研究为该地区水源涵养林的经营提供了具有参考价值的量化依据。This paper puts forward an improvement on neighborhood interference model linked to the practical instance of research-the water conservation forest of platycladus orientalis in Ban Chengzi of Miyun County,Beijing,and discusses the relationship between Interference Index(I) and the diameter at breast height(DBH),tree height,the efficiency of condition utilization,and then comes to a conclusion that the interference index is negative correlativity with DBH,tree height and efficiency of condition utilization.The interference index acutely varies with the change of factors in the stand of high density(3075 per hm^(-2).) and the interference index of the large tree is small but that of the small tree is high.It presents a position of polarization.The interference index gradually falls with the change of factors in the stand of low density(2730 per hm^(-2).) and the efficiency of condition utilization of tree of interference index high of 3(I>3) is lower while that of tree of interference index low of 1(I<1) is very high.In the stand of high density the relativity of the interference index with DBH and tree height is higher,but in the stand of low density that of the interference index with the efficiency of condition utilization is higher. The research can offer basic material for rational water conservation forest management.

关 键 词：邻体干扰模型 干扰指数 侧柏 水源涵养林 

分 类 号：S711[农业科学—林学]