Soil seed bank is affected by transferred soil thickness and properties in the reclaimed coal mine in the Qilian Mountains, China
作者机构：College of ForestryGansu Agricultural UniversityLanzhou 730070China Linze Inland River Basin Research StationChinese Ecosystem Research NetworkKey Laboratory of Ecohydrology of Inland River BasinNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China Faculty of Modern Agricultural EngineeringKunming University of Science and TechnologyKunming 650500China
出 版 物：《Journal of Arid Land》 (干旱区科学（英文版）)
年 卷 期：2023年第15卷第12期
页 面：1529-1543页
核心收录：
学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学]
基 金：supported by the National Key Research and Development Program of China (2019YFC0507400)
主 题：soil seed bank soil cover thickness species composition soil properties Qilian Mountains
摘 要：Reclamation of lands abandoned after mining in mountain areas is critical to erosion control,safety from landslides,and ecological protection of mountain ***,little is known about alpine coal mine reclamation using the soil seed bank as a potential source for *** collected samples of persistent soil seed bank for germination experiments from nine reclaimed sites with different soil cover thicknesses and from six control sites in the Qilian Mountains of *** properties of each site were determined(including soil water content,soil available potassium,soil available phosphorus,soil total nitrogen,pH,soil organic matter,soil total phosphorus,and soil total potassium,and soil alkali-hydrolyzable nitrogen),and the relationships of the characteristics of the soil seed bank with soil cover thickness and soil properties were *** results showed that the density,number of species,and diversity of the topsoil seed bank were significantly correlated with soil cover thickness,and all increased with the increment of soil cover *** cover thickness controlled the soil seed bank by influencing soil *** the increase in soil cover thickness,soil properties(e.g.,soil organic matter,soil total nitrogen,etc.)content increased while soil pH *** soil seed bank had the potential to restored the pre-mining habitat at reclaimed sites with approximately 20-cm soil cover *** properties of reclaimed sites were lower than that of natural *** relationship between the soil seed bank and soil cover thickness determined in this study provides a foundation for improving reclamation measures used in coal mines,as well as for the management and monitoring of reclaimed areas.
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