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森林生物量元素的含量与土壤元素的含量有较大差异，植物体内含量较大的Ｎ、Ｃａ、Ｐ等元素，在土壤中含量都很小。这些元素可能对森林的矿质元素的动态及生产力有较大的作用。不同的器官中，６ 种元素的平均浓度顺序为：叶＞ 枝＞ 干皮＞ 根＞ 干材，不同元素情况不同。元素在不同器官中的积累，以干最多，叶最少，枝和根接近。生物量中，元素大部分（９７％ ）集中于乔木层。森林６ 种元素的总积累量（ｋｇ·ｈａ－ １）为：３３２４．２，其中Ｎ １４７０．５，Ｐ ５１．０，Ｋ１０９７．７，Ｎａ ２２．６，Ｃａ ５６６．２，Ｍｇ １１６．２。年吸收总量（ｋｇ·ｈａ－ １·ａ－ １）为：４３２．２，其中Ｎ ２０７．１，Ｐ ６．５，Ｋ １４４．９，Ｎａ ６．９， Ｃａ ５２．６，Ｍｇ １４．１。不同器官的吸收量（ｋｇ·ｈａ－ １ ·ａ－ １）为：干材３５．０，干皮１４．８，枝６６．１，叶１４３．２，根２５．３，细根估计为：１４７．７。枯死凋落归还量（ｋｇ·ｈａ－ １·ａ－ １）为：３１１．８，其中Ｎ １５４．３，Ｐ４．７，Ｋ １０２．１，Ｎａ ６．２，Ｃａ ３４．５，Ｍｇ １０．０。不同器官归还量（ｋｇ·ｈａ－ １·ａ－ １）为：干材１０．２，干皮４．３，枝１７．０，叶１?
The contents of forest biomass elements and soil elements are quite different. The content of N, Ca, P and other elements in the plants are very small in the soil. These elements may have a greater impact on the dynamics and productivity of mineral elements in forests. Different organs, the average concentration of six elements in the order: leaf> branch> dry skin> root> dry material, different elements of different situations. Accumulation of elements in different organs to dry up, leaves at least, branches and roots close. In biomass, most of the elements (97%) are concentrated in the tree layer. The total accumulation of six elements in forest (kg · ha-1) was: 3324.2, among which N 1470.5, P 51.0, K1097.7, Na 22.6, Ca 566.2, Mg 116.2 . The annual total amount of absorption (kg · ha-1 · a-1) is: 432.2, of which N 207.1, P 6.5, K 144.9, Na 6.9, Ca 52.6, Mg 14. 1. The uptake of different organs (kg · ha-1 · a-1) was: dry material 35.0, dry skin 14.8, branch 66.1, leaf 143.2, root 25.3, fine root estimated as: 147.7. The amount of returned litterfall (kg · ha-1 · a-1) was: 311.8, of which N 154.3, P4.7, K 102.1, Na 6.2, Ca 34.5, Mg 10.0 . Different organs returned (kg · ha-1 · a-1) as follows: dry material 10.2, dry skin 4.3, branch 17.0, leaf 1?