数字农科院2.0

N limitation may inhibit the effectiveness of close-to-nature restoration measures for degraded alpine meadows on the northern Qinghai‒Tibet Plateau

文献类型： 外文期刊

作者： Guoxu Ji;Guozheng Hu;Qingzhu Gao;Hasbagan Ganjurjav;Yunfan Wan;Huihui Liu;Peidong Yu;Shicheng He;Jun Yan

作者机构：

关键词： Alpine meadow;Bacterial diversity;Chemical stoichiometry ratio;Northern qinghai-tibet plateau;Plant diversity

期刊名称： Basic and Applied Ecology

ISSN： 1439-1791

年卷期： 2024 年 77 卷

页码：

收录情况： SCIE（2024版）

摘要： As important terrestrial ecosystems on the Qinghai‒Tibet Plateau with important ecological and economic value, alpine meadows in some regions are in a degraded state due to climate change and unsustainable grazing. Due to the fragile ecological environment, exploring sustainable restoration models of degraded alpine meadows using close-to-nature restoration measures is the direction of ongoing efforts. Thus, in this study, three close-to-nature restoration measures, namely, manure application (M), Poa annua, Elymus dahuricus, and Puccinellia distans mixed with non-tillage reseeding (R), and the combined treatments (MR), were used to restore degraded alpine meadows from 2019 to 2021. The results showed that the M and MR treatments significantly enhanced plant biomass and reduced forbs dominance, thus improving community structure. Moreover, the M and MR treatments significantly affected plant and bacterial alpha diversity. However, the three restoration measures did not alter the correlation between the plant and bacterial communities. Furthermore, these three measures resulted in a significant increase in the plant carbon:nitrogen ratio and a significant decrease in the nitrogen:phosphorus ratio, while neither the plant carbon:phosphorus ratio nor the soil stoichiometric ratio changed significantly, indicating that nitrogen limitation was an important factor that limited the recovery process of the alpine meadows. The structural equation model indicated that the plant nitrogen:phosphorus ratio may regulate the response of plant and bacterial diversity to different restoration measures in alpine meadows. Our findings emphasize that the management of degraded alpine meadows using close-to-nature restoration measures should be a long-term effort, with more attention given to changes in the nitrogen content of meadow ecosystems.

分类号：

  • 相关文献

[1]Effect of soil moisture and atmospheric humidity on both plant productivity and diversity of native grasslands across the Loess Plateau, China. Deng, Lei,Shangguan, Zhouping,Deng, Lei,Shangguan, Zhouping,Wang, Kaibo,Li, Jianping,Zhao, Gangwei.

[2]Pest regulation and support of natural enemies in agriculture: Experimental evidence of within field wildflower strips. Hatt, Seyerin,Lopes, Thomas,Francis, Frederic,Hatt, Seyerin,Chen, Julian,Boeraeve, Fanny.

[3]Effects of plant community diversity on soil microbial functional groups in permafrost peatlands of Greater Khingan Mountains, Northeast China. Song, Yanyu,Wang, Lili,Ma, Xiuyan,Shi, Fuxi,Wang, Xianwei,Ren, Jiusheng,Jiang, Lei,Hou, Aixin,Song, Changchun. 2022

[4]Patterns and Drivers of Aboveground Insect Diversity along Ecological Transect in Temperate Grazed Steppes of Eastern Eurasian. Xiaoxiao Song,Lei Ji,Guangming Liu,Xiao Zhang,Xiangyang Hou,Shujing Gao,Ning Wang. 2023

[5]Effects of Grazing Exclusion on Vegetation and Soil Properties of a Leymus chinensis Steppe in China. Q. R. Huang,H. W. Deng,H. Q. Sun,L. Ji,Y. L. Sun,Y. C. Park,S. K. Hong. 2023

[6]Diversity-conditioned soil strengthens plant diversity-productivity relationship. Ren, Haiyan,Xie, Jiayao,Li, Kang,Shi, Sibo,Li, Xianping,Guo, Hui,Liu, Manqiang,Yu, Qiang. 2023

[7]Precipitation-induced biomass enhancement and differential allocation in Inner Mongolia's herbaceous and shrub communities. Xiangyun Li,Ya Hu,Zhaobin Song,Ping Cong,Huan Cheng,Xuebo Zheng,Wenjing Song,Ping Yue,Shaokun Wang,Xiaoan Zuo. 2024

[8]Moderate grazing weakens legacy effects of grazing history on primary productivity and biodiversity in a meadow grassland. Ren, Haiyan,Xie, Jiayao,Ke, Yuguang,Yu, Qiang,Lkhagva, Ariuntsetseg,Liu, Manqiang. 2024

[9]Greater impacts of reduced than oxidized nitrogen enrichment on plant diversity losses in a temperate grassland. Suxian Ren,Tianci Huo,Xin Jing,Weixing Liu,Xiaowei Gou,Xun Sun,Ru Hou,Junyi Liang. 2025

[10]Biodiversity and ecosystem multifunctionality in arid deserts: water effects and the contributions of biotic and abiotic factors. Xiaotong Li,Jiaxin Liu,Guang Yang,Yudong Chen,Lamei Jiang,Xuemin He,Guanghui Lv. 2025

[11]Annual invasive plants reduce plant productivity while promoting biodiversity in arid regions. Wang, Yaqing,Chen, Xinyi,Zhou, Mingdong,Ma, Li,Zhang, Meng,Chen, Baoxiong,Dong, Hegan. 2025

[12]Responses of alpine vegetation and soils to the disturbance of plateau pika (Ochotona curzoniae) at burrow level on the Qinghai-Tibetan Plateau of China. Zhang, Yong,Dong, Shikui,Liu, Shiliang,Cao, Xujuan,Dong, Shikui,Gao, Qingzhu,Liang, Yan.

[13]Effects of short-term and long-term warming on soil nutrients, microbial biomass and enzyme activities in an alpine meadow on the Qinghai-Tibet Plateau of China. Wang, Xuexia,Dong, Shikui,Liu, Shiliang,Su, Xukun,Li, Yuanyuan,Gao, Qingzhu,Zhou, Huakun.

[14]Effects of Grazing and Fencing on Carbon and Nitrogen Reserves in Plants and Soils of Alpine Meadow in the three Headwater Resource Regions. Fan, Yuejun,Shi, Shangli,Fan, Yuejun,Shi, Shangli,Fan, Yuejun,Shi, Shangli,Fan, Yuejun,Hou, Xiangyang,Shi, Hongxiao.

[15]Effect of a grazing ban on restoring the degraded alpine meadows of Northern Tibet, China. Zhang, W. N.,Ganjurjav, H.,Liang, Y.,Gao, Q. Z.,Wan, Y. F.,Li, Y.,Zhang, W. N.,Ganjurjav, H.,Liang, Y.,Gao, Q. Z.,Wan, Y. F.,Li, Y.,Baima, Y. Z.,Xirao, Z. M..

[16]SEEDLING RECRUITMENT OF FORB SPECIES UNDER EXPERIMENTAL MICROHABITATS IN ALPINE GRASSLAND. Tian Fu-Ping,Shi Shang-Li,Liu Yu,Wu Gao-Lin,Tian Fu-Ping,Wu Gao-Lin. 2015

[17]Nitrogen Deposition Induced Significant Increase O.f N2O Emissions In A n Dry Alpine Meadow On The Central Qinghai-Tibetan Plateau. Yan, YL, Ganjurjav, H, Hu, GZ, Liang, Y, Li, Y, He, SC, Danjiu, LB, Yang, J, Gao, QZ. 2018

[18]Responses of bacterial community composition and diversity to multi-level nitrogen addition at different periods of growing season driven by conditional rare taxa in an alpine meadow. Hu, Yilun,Ganjurjav, Hasbagan,Hu, Guozheng,Ji, Guoxu,Han, Lin,Sha, Yubao,Liang, Yan,Gao, Qingzhu. 2023

[19]Nitrogen Addition Affects Ecosystem Carbon Exchange by Regulating Plant Community Assembly and Altering Soil Properties in an Alpine Meadow on the Qinghai-Tibetan Plateau. Han, Ling,Ganjurjav, Hasbagan,Hu, Guozheng,Wu, Jianshuang,Yan, Yulong,Danjiu, Luobu,He, Shicheng,Xie, Wendong,Yan, Jun,Gao, Qingzhu. 2022

[20]Grazing Exclusion Changed the Complexity and Keystone Species of Alpine Meadows on the Qinghai-Tibetan Plateau. Yong Zhang,Qingzhu Gao,Hasbagan Ganjurjav,Shikui Dong,Qiuzhu Zheng,Yandan Ma,Kemin Liang. 2021

作者其他论文 更多>>