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- Title
退化草原恢复中草原植物群落特征的变化.
- Authors
吴润; 张勇娟; 曹娟; 安沙舟; 崔国盈; 闫瑞瑞
- Abstract
【Objective】 Based on the analysis of the characteristics of vegetation community in the degraded grassland after implementing the policy of grazing ban and grass-animal balance, the ecological environment restoration of the degraded grassland ecological environment was discussed, so as to provide scientific theoretical guidance for the restoration and reconstruction of degraded grassland in Urumqi. 【Method】 The natural grasslands in Urumqi with implementing the policy of ban on grazing and grass-animal balance were selected as the research objects. Field surveys and comparative analysis of growth changes, average height, coverage, and above-ground biomass of the plant community in different restoration years were conducted, and the changes of plant community characteristics during the restoration of degraded grasslands were studied. 【Results】 (1) After the implementation of the grassland compensation policy, the recovery of grassland plants in 5th years was better than that of the 1st year, and the growth of grassland plants in 8th years was better than that in 5th years. (2) The coverage, height, and biomass in different steppe in forbidden grazing areas showed a volatile upward trend with the extension of recovery time, and that of different grassland groups in the grass-animal balance area tended to increase first and then decrease with the continuous recovery time. The decrease might be associated with reduced rainfall in Urumqi in 2018. 【Conclusion】 Through the implementation of grazing ban and grass-animal balance, the degradation of Urumqi grassland has been improved to a certain extent and grassland vegetation has recovered well, but the changes in different grassland types are different. We need to be continued to strengthen the monitoring of grassland resources and provide more scientific guidance for the restoration and management of degraded grasslands in Urumqi.
- Publication
Xinjiang Agricultural Sciences, 2020, Vol 57, Issue 5, p940
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2020.05.019