基于Meta分析的新疆退化草地围栏封育效果研究

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doi：10.11733/j.issn.1007-0435.2025.09.025

中图分类号：S283 文献标识码：A 文章编号：1007-0435（2025）09-3014-10

Study on the Enclosure Effects of Degraded Grassland in Xinjiang Based on Meta-analysis

ZHENG Yu，YAO Hui-fang，CHAO Kai-rui，MA Xiu-zhi，MA Ya-nan，WANGMin-yi （ForestryColegeof Inner Mongolia AgriculturalUniversity，Hohhot，InnerMongoliaOloolo，China）

Abstract：Enclosure is the main measure of natural restoration of degraded grassland in Xinjiang.To evaluate its restoration efect，in this study wecollcted 4O literatures on the restoration of degraded grassland in Xinjiang from 2000 to 2024，and used Meta-analysis to comprehensively analyze 655 sets of data.The results showed that the most significant changes was soil water content，totalcarbon，total phosphorus，height，coverage，rhi zome ratio，species richness，evenness index and Simpson dominance index were 23.73% ， 15.24% ， 23.48% ， 62.25% ， 32.23% ，101. 42% ，16. 96% ， 28.88% and 17.76% ，respectively，when the enclosure time was less than 2 years.During the period of 3-4 years of enclosure，the most significant changes Were available nitrogen，available phosphorus，available potassium，underground biomass and density，which increased by 29.43% ， 39.35% ， 32.61% ， 49.47% and 115.86% ，respectively. When the enclosure time was ⩾5 （204 years，the soil bulk density and pH decreased significantly by 11. 48% and 1.78% ，respectively. Soil organic carbon，total nitrogen，total potassium，total biomass，aboveground biomass，fresh grass and hay yield were significantly increased by 26.65% ， 22.59% ， 12.52% ， 68.24% ， 143.51% ， 123% and 111.31% ，respec tively.Fence enclosure measures have a positive effect on the restoration of degraded grassland in Xinjiang by increasing soil nutrient content，promoting vegetation growth and development and increasing production Key words：Xinjiang;Degraded grassland;Fence enclosure;Meta-analysis

草地占据全球陆地面积的 45% ，对维持畜牧业发展发挥着关键作用[1。（剩余13065字）