Study on Seed Bank Composition and Seedling Emergence Regularity in Placer Iron Ore Soil
砂铁矿土壤种子库组成及出苗规律研究作者机构：Institute of Grassland ScienceXinjiang Academy of Animal HusbandryUrumqi 830000China Altay Prefecture Bureau of Ecology and Environment(Environmental Monitoring Station)Xinjiang 836500China
出 版 物：《Journal of Resources and Ecology》 (资源与生态学报（英文版）)
年 卷 期：2022年第13卷第2期
页 面：312-318页
核心收录：
学科分类：090503[农学-草业科学] 0909[农学-草学] 0905[农学-畜牧学] 09[农学] 0903[农学-农业资源与环境]
基 金：The Project of Xinjiang Uygur Autonomous Region(2020D01A38)
主 题：seedling emergence placer iron ore soil seed band species composition
摘 要：The mining of placer iron ore greatly influences the surrounding desert *** Agdala Town,Qinghe County,Xinjiang,the soil seed bank is severely damaged,and the utilization and productivity of desert grasslands are almost zero,which seriously affects the safety of the ecological environment and the development of local animal *** is very important to supplement soil seed banks to enhance the species composition of desert grasslands after ecological *** this study,the effects of the seed bank,species composition,and seed burial depth on the seedling emergence rate at placer iron ore site before and after artificial seed bank replenishment were compared using the germination tray *** original soil seed bank in the study area contained only four species,which were all annual *** dominant species were Salsola ruthenica and Corispermum orientale,and the soil seed bank density was very *** emergence regularity of the soil seed bank was closely related to water content,and the emergence of annual vegetation was *** burial depth affected the emergence rate of perennial grass,and we determined that a burial depth of 0–5 cm was the most effective for *** indicates that seedling emergence of artificially supplemented soil seed bank can be completed within 7 days if the sowing depth is appropriate;sowing depths greater than 5 cm affect seed *** findings provide a basis for selecting species to populate large areas.
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