生态与农村环境学报2017，Vol.33Issue(1)：32-37,6.DOI:10.11934/j.issn.1673-4831.2017.01.005
基于种子库激活的沙化草地生态修复技术应用
Application of the Seed-Bank-Reactivation-Based Ecological Remediation Technologies to Sandy Grassland
摘要
Abstract
Seed bank plays an important role in remedying degraded grasslands and restoring vegetation therein.A seed bank reactivation technology was developed for sandy grasslands to address the problem of desertification of the grassland ecological function zone of the well-known Horqin Steppe.The technology begins with enclosing a tract of grassland as seed bank and then applies a kind of water-retaining fertilizer,a mixture of organic manure and water retention agent,into the tract of grassland,rapidly making the soil moist and fertile.Results show that application of the technology to the degraded grassland,increased its vegetation coverage by 66.43％,Shannon-Wiener diversity index by 8.90％;soil organic matter,total nitrogen,total potassium and total phosphorus in the 0-30 cm soil layer by 23.47％,14.82％,2.90％ and 403.56％,respectively.Therefore,it can be concluded that the technology is conducive to improvement of soil fertility and species diversity of the plant community in a short period of time,restoration of the vegetation and control and fixation of mobile sand.关键词
沙化草地/生态修复/种子库Key words
grassland desertification/ecological restoration/seed bank分类
农业科技引用本文复制引用
田美荣,刘志强,高吉喜,向昌林..基于种子库激活的沙化草地生态修复技术应用[J].生态与农村环境学报,2017,33(1):32-37,6.基金项目
环保公益性行业科研专项(201409055) （201409055）
