火炬松林分叶面指数(LAI)、树干材生长量(立方米/公顷、年)和生长率(立方米树干材/公顷、年、叶面指数)与养分间的关系,川氮磷肥在三个施肥试验区测试,这三个试验林分在施肥前其活立木蓄积量和最大含氮量是各不相同的。在两个缺氮的试验林分中,施氮肥后其叶面指数增长是显著的(最高可增至60%),但磷肥的增加对叶面指数没有影响。树干材的生长与叶面指数和 The relationship between LAI, growth of trunk material (m3 / ha, year) and growth rate (m3 of trunk material per hectare, year, leaf index) Fertilization test area test, the three experimental stand before the fertilization of its standing stock volume and maximum nitrogen content is different. In two nitrogen-deficient experimental plots, the leaf surface index increased significantly (up to 60%) after applying nitrogen fertilizer, but the increase of phosphate fertilizer had no effect on the leaf index. Growth of trunk material with foliage index and