宁夏发菜分布区受损生态系统的生态修复研究  

Research on Ecological Restoration of Damaged Ecosystem in Distribution Area of Nostoc flagelliforme of Ganchengzi in Ningxia

作　　者：梁文裕[1] 王建 王星[1] 张喜娟[1] 王俊[1] 

机构地区：[1]宁夏大学生命科学学院,宁夏银川750021 [2]宁夏回族自治区环境保护厅,宁夏银川750001

出　　处：《安徽农业科学》2009年第16期7639-7641,共3页Journal of Anhui Agricultural Sciences

基　　金：宁夏自然科学基金项目(NZ0730);宁夏回族自治区环境保护科技项目(2008)资助

摘　　要：[目的]为发菜分布区受损生态系统生态修复提供理论依据。[方法]以宁夏青铜峡甘城子发菜分布区荒漠化草原为例,在植被调查和分析的基础上,通过定期人工给水研究发菜分布区受损生态系统的生态修复效果。[结果]通过定期人工给水、围栏育草等措施能够启动荒漠化草原的植被恢复过程,有效改善了土壤理化性质,提高了植被盖度、植被生物量、一年生和多年生草本植物的物种丰富度。[结论]研究结果对改进荒漠化草原治理技术具有指导意义。[ Objective ] The study was to provide the basis for ecological restoration of damaged ecosystem in distribution area of Nostocflagelliforme. [ Method] Taking desertification grassland in distribution area of Nostocflagelliforme of Ganchengzi in Ningxia as an example, base on the investigation and analysis of vegetation, through artificial watering termly, effects of ecological restoration in distribution area of N. flagelliforme were studied at Ganchengzi in Ningxia. [ Result] Watering termly and raising herbage in enclosure was able to start the vegetation recov- ery process of desertifieation grassland, to improve soil physical and chemical quality, to enhance vegetation coverage, vegetation biomass and species richness of annual herb and perennial herb. [ Conclusion ] The results of the study have some guiding significance for improving the control technology of desertification grassland.

关 键 词：发菜分布区 受损生态系统 荒漠化草原 生态修复 植被恢复 

分 类 号：S157[农业科学—土壤学]