干旱草原区查干淖尔退化湖盆生态治理效果调查与评价

对查干淖尔地区为治理退化湖盆所施行的生物引种和机械沙障等措施进行了效果调查和评价。结果表明：在引种的7种草本植物中，碱蓬是唯一能够在此类盐碱湖盆成功建植的草本植物。在移栽的5种木本植物中，白刺有较高的存活率。高、低立式沙障和防风抑沙网都表现出较好的治理效果，沙障保护区内的植被盖度和物种多样性明显高于未设置沙障的对照区。沙障设置的方向对保护效果有一定的影响。低矮的卧式沙障和草方格沙障的治理效果则不理想。

Investigation and assessment of the ecological restoration measures for the degraded Chaganoor lake basin in arid grassland region

In this study, the effectiveness of some ecological restoration measures including herbage plant re-- sowing, woody plant transplanting and different wind--breaking barriers were assessed. Among the 7 introduced herbage plants, Suaeda glauca was the only plant which successfully established in the salty and alkali lake basin. Among the 5 tested woody plants.Nitraria sibirica showed the highest surviving rate. Both low and high standing wind--breaking barriers showed good results in that vegetation coverage and species diversity were obviously high er than that in the control areas. Wind proof and sand suppressing net also showed good results for vegetation re- covery. Layout direction of the wind--breaking barrier affected the effectiveness of the barrier. Low horizontal sand barrier and grass checkered were less effective for vegetation recovery.