当前位置: 首页 > 文章 > 滇中高原华山松人工林生物量及营养元素分配格局 西部林业科学 2014 (4) 54-60
Position: Home > Articles > Nutrient Distribution and Accumulation of Pinus armandii Plantations in Middle Yunnan Plateau,China Journal of West China Forestry Science 2014 (4) 54-60

滇中高原华山松人工林生物量及营养元素分配格局

作  者:
李元玖;陈奇伯;熊好琴;舒蛟靖;赵吉霞
单  位:
西南林业大学环境科学与工程学院
关键词:
华山松人工林;生物量;营养元素;生态系统功能
摘  要:
对云南玉溪磨盘山华山松人工林(16年中龄林、26年近成熟林、43年成熟林)生物量及N、P、K、Ca和Mg等5种营养元素的分配格局和积累规律进行了研究。结果显示,3种林龄华山松人工林的生物量分别为181.515 t/hm2、284.679 t/hm2、295.311 t/hm2,乔木层生物量分别占林分的91.594%、94.760%、93.838%,乔木层的净生产力分别为10.391 t/(hm2·a)、10.375 t/(hm2·a)和6.444 t/(hm2·a);3种林龄群落各层生物量均为乔木层>枯落物层>灌木层>草本层;乔木各营养器官营养元素含量大小是树叶>树枝>树根>树皮(或树皮>树根)>树干;3种林龄华山松各器官营养元素含量均以N含量最高,其他元素含量依次为K>Mg>Ca>P,其中树叶中的N含量最高,达到16.733 g/kg~21.368 g/kg;3种林龄群落营养物质总积累量分别为1 497.993 kg/hm2、2 257.161 kg/hm2和2 810.246 kg/hm2,乔木层营养物质年积累量分别为77.532 kg/(hm2·a)、76.679 kg/(hm2·a)、58.759 kg/(hm2·a)。
译  名:
Nutrient Distribution and Accumulation of Pinus armandii Plantations in Middle Yunnan Plateau,China
作  者:
LI Yuan-jiu;CHEN Qi-bo;XIONG Hao-qin;SHU Jiao-jing;ZHAO Ji-xia;School of Environmental Science and Engineering,Southwest Forestry University;
关键词:
Pinus armandii plantations;;biomass;;nutrients;;ecosystem function
摘  要:
Biomass,nutrient( e. g. N,P,K,Ca and Mg) distribution pattern and accumulation of the 16 a,26 a,and 43 a Pinus armandii plantations were studied in Mopanshan in Yuxi,middle Yunnan plateau,southwest China. The results showed that: the biomass of the three types of Pinus armandii plantations were 181. 515 t /hm2,284.679 t/hm2,and 295. 311 t /hm2respectively; the biomass of tree layer accounted for 91. 594 %,94. 760 %,93. 838 % respectively. The net biomass of tree layer were 10. 391 t /( hm2·a),10.375 t/( hm2·a) and 6. 444 t/( hm2·a); biomass of different ages followed the order of tree layer > litter layer > shrub layer > herb layer; Pinus armandii's nutrient content sorted by organ was in the order of leaf > branch > root( or bark > root) > bark > trunk. They were all the rich in N and in the order of N > K > Mg > Ca > P; the content N in leaves was the highest and was between 16. 733 g /kg ~ 21. 368 g /kg; the accumulation of nutrients of three types of Pinus armandii plantations were 1 497. 993 kg /hm2,2 257.161 kg/hm2 and 2 810. 246 kg /hm2respectively; the annual accumulation of nutrients of tree layer were 77. 532 kg /( hm2·a),76.679 kg/( hm2·a),58.759 kg/( hm2·a) respectively.

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