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锐齿栎林非同化器官营养元素含量的大小为 ,N:皮 >枝 >根 >边材 >心材 ,P:根 >枝 >皮 >边材 >心材 ,K:枝 >皮 >根 >边材 >心材 ,Ca:皮 >枝 >根 >心材 >边材 ,Mg:根 >皮 >枝 >边材 >心材。不同枝径和冠层枝营养元素含量存在一定差异。干皮及干木质部营养元素含量与园盘高度呈显著的正相关或正相关 ,随圆盘由基部到稍部高度的增加均呈增加的趋势 ;干营养元素含量为干皮 >边材 >心材 ,三者呈极显著的正相关或显著的正相关。随林木根径和根系在土层中的增加 ,根系营养元素含量均呈降低的趋势。 69年生个体生物量和营养元素积累量分别为 1 2 35.782和 1 4 .4 977kg,其中 N、P、K、Ca、Mg的积累量分别占营养元素积累量的 2 0 .2 %、8.5%、2 0 .4 %、53.0 %和 2 .9% ;根、干、皮、枝和叶的生物量分别占生物总量的 1 7.0 5%、4 9.59%、9.1 8%、2 4 .30 %和 0 .86% ,营养元素积累量分别占总量的 1 4 .93%、2 2 .65%、2 1 .1 9%、36.97%、4 .2 5%。
The content of nutrient elements in non-assimilated organs of Q. crus-galli was N: skin> branch> root> sapwood> heartwood, P: root> branch> bark> sapwood> heartwood, K: branch> bark> root> sapwood > Heartwood, Ca: skin> branch> root> heartwood> sapwood, Mg: root> bark> branch> sapwood> heartwood. There were some differences in nutrient content between different branches and canopy branches. Dry matter and dry xylem nutrient content and the height of the disk was significantly positive correlation or positive correlation with the disk from the base to a little height increase showed an upward trend; dry nutrient content of dry skin> sapwood> heartwood , The three were extremely significant positive or significant positive correlation. With the increase of root diameter and roots in the soil, the content of nutrient elements in the root showed a decreasing trend. The accumulations of individual biomass and nutrient elements in 69-year-old individuals were 1 2 35.782 and 14 4777 kg, respectively, of which the accumulation of N, P, K, Ca and Mg accounted for 20.2% and 8.5% , 2.04%, 53.0% and 2.9% respectively. The biomass of roots, stems, skins, branches and leaves accounted for 1 7.05%, 4 9.59%, 9.18% and 24.3% of the total biomass respectively % And 0 .86%, respectively. The accumulative amounts of nutrients accounted for 14.93%, 22.65%, 21.91%, 36.97% and 4.2.5% of the total respectively.