Accumulation of carbon, nitrogen and phosphorus during soil formation on alder spoil heaps after brown-coal mining, near Sokolov (Czech Republic)
Accumulation of carbon, nitrogen and phosphorus during soil formation on alder spoil heaps after brown-coal mining, near Sokolov (Czech Republic)
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索科洛夫（捷克共和国）附近褐煤开采后的桤木弃土堆土壤形成过程中碳、氮和磷的积累
DOI：
10.1016/j.geoderma.2004.05.001
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发表时间：
2005
期刊：
影响因子：
6.1
通讯作者：
H. Šantrůčková
中科院分区：
文献类型：
--
作者：
M. Šourková;J. Frouz;H. Šantrůčková
对捷克索科洛夫附近19个露天煤矿复垦排土场的土壤碳(C)、氮(N)和磷(P)的积累及其垂直分布与立地年龄的关系进行了研究，并与矿区附近的半自然赤木林进行了比较。复垦地位于第三纪粘土或第四纪砾砂弃土上，4~65年前以赤杨树种(Alnus polinosa，A.incana)造林。复垦后15年内，土壤剖面中C、N迅速积累。在25年及以上的复垦地中，整个剖面中C、N含量以及凋落物和发酵层厚度的增加速度较慢。在5-10 cm土层，半天然赤杨林土壤的C、N含量高于40年生(粘粒)，甚至高于65年生(砾砂)复垦土壤。与C相比，N的积累较慢，尤其是在剖面更深的部分(5-10 cm)。有机碳的积累导致底物pH从年轻站点的特征碱性下降到较老站点的微酸性。各土层土壤pH随立地年龄的增加而逐渐降低，随土壤剖面深度的增加而增加。与C和N相反，P在土壤剖面的任何一层中都不随立地年龄显著变化。发酵层磷含量最高，其他各层磷含量差异不显著。与40年生复垦立地相比，半自然立地的土壤剖面磷含量更高。
The accumulation of carbon (C), nitrogen (N) and phosphorus (P) and their vertical distribution in the soil profile in relation to site age were studied in a chronosequence of 19 sites on reclaimed spoil heaps from open-cast coal mining, near Sokolov (Czech Republic) and compared to a semi-natural alder forest in the vicinity of the mining area. The reclaimed sites were located on tertiary clay or quaternary gravel–sand spoil material and afforested with alder species (Alnus glutinosa, A. incana) 4–65 years ago. Rapid accumulation of C and N in the soil profile was registered within 15 years after reclamation. The rate of increase in C and N contents in the whole profile and the thickness of the litter and fermentation layers was slower in 25-year-old and older reclaimed sites. The soil of the semi-natural alder forest was richer in C and N in the 5–10-cm layer compared with 40-year-old (clays) and even with 65-year-old (gravel–sand) reclaimed soils. N accumulated more slowly in comparison with C, especially in deeper (5–10 cm) parts of the profile. Accumulation of organic C resulted in a decrease in substrate pH from alkaline, which was characteristic of young sites, to slightly acidic on older sites. The pH decreased gradually with increasing site age in all soil layers but increased with depth in the soil profile. In contrast to C and N, P content did not significantly change with site age in any layer of the soil profile. The highest amount of P was found in the fermentation layer, but there was no difference to the other layers. The soil profile of the semi-natural sites was richer in P in comparison to 40-year-old reclaimed ones.
DOI：
10.1201/9780203739273
发表时间：
1998
期刊：
--
影响因子：
--
作者：
R. Lal;J. Kimble;R. Follett;B. Stewart
通讯作者：
R. Lal;J. Kimble;R. Follett;B. Stewart