黑龙江省林口林业局森林的潜在生产力  

Forest potential productivity of Linkou forestry bureau in Heilongjiang Province

作　　者：王树力[1] 周延阳[1] 杨广巍[1] 

机构地区：[1]东北林业大学林学院,哈尔滨150040

出　　处：《中国水土保持科学》2007年第5期60-65,共6页Science of Soil and Water Conservation

基　　金：国家"948"项目"人工林经营景观生态规划与空间优化技术引进"(2005-4-05)

摘　　要：依据气象资料及森林资源数据,利用Miami模型和Thornthwaite Memorial模型,对黑龙江省林口林业局的森林潜在生产力进行估算,得出了潜在生产力与温度和降水量的关系,并对林口林业局森林实际生产力进行了评价。结果表明：林口林业局水分条件较好,但热量不足,温度是森林生产力的主要限制因子,其森林潜在生产力为9.38-12.64 m^3/（hm^2·a）;森林实际生产力为2.22 m^3/（hm^2·a）,仅为潜在生产力的17.56%-23.67%,森林生产力水平低的主要原因是幼龄林比例过大;森林潜在生产力处于黑龙江省中上游水平,在同纬度地区处于下游水平。研究结果对林口林业局制订人工林培育方案,优化森林结构,保护与利用森林资源具有参考意义。According to climate data and forest resource data, the forest potential productivity of Linkou forestry bureau in Heilongjiang Province was calculated by using Miami model and Thornthwaite Memorial model. The relationship among potential productivity, temperature and precipitation was accepted, and the real forest productivity was evaluated. It shows that potential forest productivity in LinKou forest bureau is 9.38 - 12.64 m^3·hm^-2·a^-1. The real forest productivity is 2.22 m^3·hm^-2·a^-1, 17.56 - 23.67 percent of potential productivity. The main reason of the low productivity is the high proportion of young age forest. The forest potential productivity of study area is in a middle level compared with those of other regions, and is lower than those of the same latitude regions in Heilongjiang Province. The results could be used as an important reference in working out the cultivation plan of plantation, optimizing forest structure and protecting forest resource.

关 键 词：森林潜在生产力 Miami模型 林口林业局 

分 类 号：S757.24[农业科学—森林经理学]