Lin Ya-Chao, Guo Xiao-Ping, Li Wen-Ye, Yang Fan, Luo Chao, Hao Jia-Hang, Wu Yu-Xi
School of Soil and Water Conservation, Beijing Forestry University/Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing 100083, China.
Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China.
Ying Yong Sheng Tai Xue Bao. 2024 Jan;35(1):95-101. doi: 10.13287/j.1001-9332.202401.005.
Long-term occupation of coal gangue dumping sites (CGDS) may destroy ecological environment of nearby area. However, how the CGDS affects the distribution pattern of soil seed banks and vegetation in the nearby area is not clear. In this study, we investigated soil seed bank and vegetation at different distances from the second CGDS of Yangchangwan in Ningdong mining area, Lingwu, Ningxia. The results showed that soil seed bank was mainly distributed in 0-10 cm layer and decreased with increasing soil depth. Species richness of soil seed bank and vegetation first increased and then tended to be stable with increasing distance to the CGDS. The influence range of CGDS on soil seed banks was 300-500 m and was 100-300 m on aboveground vegetation. The CGDS did not affect the vertical distribution pattern of soil seed bank, but significantly affected the horizontal distribution pattern of soil seed banks and aboveground vegetation. The key area of vegetation restoration around the CGDS was between 100 m and 300 m.
长期占用煤矸石堆放场（CGDS）可能会破坏附近地区的生态环境。然而，煤矸石堆放场如何影响附近地区土壤种子库和植被的分布格局尚不清楚。在本研究中，我们调查了宁夏灵武宁东矿区羊场湾第二煤矸石堆放场不同距离处的土壤种子库和植被。结果表明，土壤种子库主要分布在0-10厘米土层，且随土壤深度增加而减少。土壤种子库和植被的物种丰富度随着与煤矸石堆放场距离的增加先增加后趋于稳定。煤矸石堆放场对土壤种子库的影响范围为300-500米，对地上植被的影响范围为100-300米。煤矸石堆放场不影响土壤种子库的垂直分布格局，但显著影响土壤种子库和地上植被的水平分布格局。煤矸石堆放场周围植被恢复的关键区域在100米至300米之间。
