不同修复措施对退化草地恢复效果的研究

doi:10.12160/j.issn.1672-5190.2024.02.006

Abstract

Abstract: [Objective] This study was conducted to assess the effects of different remediation measures on the restoration of degraded grassland. [Method] A restoration trial with three measures, including enclosure （TW）, enclosure+supplementary sowing （TB）, and enclosure+supplementary sowing+fertilization （TBS）, was performed on the moderately and severely degraded grasslands in Jarud Banner, Tongliao City, Inner Mongolia. Using the peripheral grazing plots as control （CK）, the vegetation height, coverage and above-ground biomass of the degraded grasslands were continuously monitored and compared under different remediation measures from 2016 to 2019. [Result] During the whole monitoring period, the vegetation height, coverage and above-ground biomass of TW, TB and TBS treatments were all significantly （P<0.05） higher than those of CK. In the current year of restoration （2016）, the vegetation height, coverage and above-ground biomass of TB and TBS treatments were significantly （P<0.05） higher than those of TW treatment, and the vegetation height and coverage of TBS treatment were significantly （P<0.05） higher than those of TB treatment. In 2017, the vegetation height and above-ground biomass of TBS treatment were significantly （P<0.05） higher than those of TW and TB treatments, and the vegetation coverage of TB and TBS treatments was significantly （P<0.05） higher than that of TW treatment. In 2018, the vegetation above-ground biomass of TB and TBS treatments was significantly （P<0.05） higher than that of TW treatment, and the vegetation above-ground biomass of TBS treatment was significantly （P<0.05） higher than that of TB treatment. In 2019, the vegetation coverage and above-ground biomass of TB and TBS treatments were significantly （P<0.05） higher than those of TW treatment. [Conclusion] The remediation measures of enclosure, enclosure+supplementary sowing, and enclosure+supplementary sowing+fertilization all had good restoration effects on moderately and severely degraded grasslands, with enclosure+supplementary sowing+fertilization having the best restoration effect.

Key words: degraded grassland, remediation measure, restoration effect, enclosure, supplementary sowing, fertilization

CLC Number:

S812.68

ZHANG Xiaoyan, ZHANG Jian, CHEN Xiang, Chao Lemeng, XI Yaqin, JIN Jing, FENG Caixia, Hunusitu, ZHANG Tianyu, WANG Yaru. Effects of Different Remediation Measures on the Restoration of Degraded Grassland[J]. Animal Husbandry and Feed Science, 2024, 45(2): 45-49.

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Effects of Different Remediation Measures on the Restoration of Degraded Grassland

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