摘要
研究了2018年-2022年多伦县8个具有代表性的草甸草原、典型草原、林缘草甸、冷蒿退化草地和沙地植被监测点位的植物群落特征动态变化和植被生态质量变化状况。研究主要以植物群落演替规律为理论基础,对所监测的8个草原植被点位现状予以评价。多伦县牧草生产力总体呈现稳定增长趋势,但由于2022年降水量急剧下降,导致牧草生产力有所降低。经过二十年植树造林和退耕还林还草项目的实施,多伦县植被防风固沙效果日趋明显,植被质量总体呈现稳定向好趋势。
The changes in characteristics of plant community and vegetation ecological quality for 8 representative meadow steppe,typical steppe,forest-edge grassland,degraded grassland of artemisia frigida and sandy vegetation monitoring points from 2018 to 2022 in duolun countywere studied.Based on the succession law of plant community,the research evaluates the current situation of eight vegetation ecological quality sites monitored on the grassland.The forage productivity has shown a steady growth tend in Duolun county,but it has declined because of a sharp drop of precipitation in 2022.After the afforestation and returning farmland to forest and grassland in the past 20 years,the effect of windbreak and sand fixation of vegetation has become increasingly obvious,the vegetation ecological quality has shown a stable good trend.
作者
李春玲
罗庆军
武立坤
白丹
李秀全
Li Chunling;Luo Qinjun;Wu Likun;Bai Dan;Li Xiuquan(Ecological Environmental Monitoring Station of Inner Mongolia Duolun County,Xilingol 027300,China)
出处
《环境科学与管理》
CAS
2023年第7期154-158,164,共6页
Environmental Science and Management
关键词
多伦县
植物群落特征
植被生态质量
Duolun county
plant communitycharacteristics
vegetation ecological quality
