| Autor: |
Wang C; Hebei Province Key Laboratory of Forest Trees Germplasm Resources and Forest Protection/College of Forestry, Agricultural University of Hebei, Baoding 071000, Hebei, China., Dong XT; Hebei Province Key Laboratory of Forest Trees Germplasm Resources and Forest Protection/College of Forestry, Agricultural University of Hebei, Baoding 071000, Hebei, China., DU RP; Hebei Province Key Laboratory of Forest Trees Germplasm Resources and Forest Protection/College of Forestry, Agricultural University of Hebei, Baoding 071000, Hebei, China., Zhang ZD; Hebei Province Key Laboratory of Forest Trees Germplasm Resources and Forest Protection/College of Forestry, Agricultural University of Hebei, Baoding 071000, Hebei, China., Huang XR; Hebei Province Key Laboratory of Forest Trees Germplasm Resources and Forest Protection/College of Forestry, Agricultural University of Hebei, Baoding 071000, Hebei, China. |
| Jazyk: |
čínština |
| Zdroj: |
Ying yong sheng tai xue bao = The journal of applied ecology [Ying Yong Sheng Tai Xue Bao] 2021 May; Vol. 32 (5), pp. 1709-1716. |
| DOI: |
10.13287/j.1001-9332.202105.008 |
| Abstrakt: |
Litter is an important contribution to forest soil. Litter decomposition plays an important role in nutrient cycling of forest ecosystem. A field litterbag experiment was conducted to examine the dynamics of decomposition rate, nutrient release and enzyme activity during litter decomposition in the pure forests of Larix principis-rupprechtii (L) and mixed forests, including L and Betula platyphylla (B), L and Quercus mongolica (Q), as well as LBQ, in Saihanba area, Hebei Pro-vince, China. The results showed that the decomposition rate of leaf litter in L forest was significantly lower than that in mixed forests during the 720 d decomposition. The LB had the highest decomposition rate of L leaf litter. All treatments had the same change trend of nutrient contents, with the contents of N and P being increased and that of C, K and C/N being decreased. Contrast to pure leaf litter of L, leaf litter in mixed forests could promote the release of C and K, and inhibit litter N and P release. During the litter decomposition, the activities of catalase, urease and acid phosphatase increased, while that of sucrase decreased in all leaf litter of forests. The decomposition rate of leaf litter was positively correlated with the activities of catalase, urease and acid phosphatase, negatively correlated with that of sucrase. Our results showed that leaf litter mixture of L. principis-rupprechtii , B . platyphylla and Q . mongolica could enhance the litter decomposition of L. principis-rupprechtii , and that enzyme activities were closely related to litter decomposition. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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