不同恢复措施对新疆伊犁退化草地植被恢复效果评价
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内蒙古农业大学 林学院

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S152.4

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第三次新疆综合科学考察项目(2022xjkk0403)


Effect evaluation of different restoration measures on vegetation restoration of degraded grassland in Yili, Xinjiang
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College of Forestry,Inner Mongolia Agricultural University,Hohhot Inner Mongolia

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    摘要:

    新疆伊犁是我国重要的畜牧业基地,草地资源丰富,然而近年来伊犁地区草地退化问题日益严重,给当地畜牧业带来了严重影响。本研究基于对伊犁地区22个样区的实地调查数据,探究围栏封育、补播和禁牧3种措施对不同类型草地地上植被的恢复效果。伊犁山地草甸、低地草甸、温性草甸和温性荒漠草原在围封≥5 a后,植被高度、盖度、地上生物量和凋落物生物量均有显著提升,综合各种草地类型来看,群落植被高度、盖度、地上生物量和凋落物生物量分别增加了66%、50%、48%和52%。补播群落植被盖度也有显著的提升,其中辛普森指数、群落植被盖度和地上生物量分别增加了10%、57%和70%。禁牧2 a后山地草甸的植物种类、群落植被盖度和地上生物量分别显著增加了32%、51%和29%。3种措施对新疆伊犁退化草地恢复均有一定效果,其中补播是提升群落植被盖度和地上生物量最有效的措施,本研究为退化草地植被恢复和可持续发展提供理论依据。

    Abstract:

    Yili in Xinjiang is an important animal husbandry base in China, with rich grassland resources. However, in recent years, the problem of grassland degradation in Ili area has become increasingly serious, which has seriously affected the local animal husbandry. Based on the field survey data of 22 sample areas in Ili area, this study explored the restoration effects of three measures of fence enclosure, reseeding and grazing prohibition on different types of grassland vegetation. The vegetation height, coverage, aboveground biomass and litter biomass of Ili mountain meadow, lowland meadow, temperate meadow and temperate desert steppe increased significantly after enclosure for more than 5 years. The vegetation height, coverage, aboveground biomass and litter biomass of the community increased by 66 %, 50 %, 48 % and 52 %, respectively. The vegetation coverage of the reseeding community also increased significantly, and the Simpson index, community vegetation coverage and aboveground biomass increased by 10 %, 57 % and 70 %, respectively. The plant species, community vegetation coverage and aboveground biomass of mountain meadow increased significantly by 32 %, 51 % and 29 %, respectively, after 2 years of grazing exclusion. The three measures have certain effects on the restoration of degraded grassland in Yili, Xinjiang, among which reseeding is the most effective measure to improve the vegetation coverage and aboveground biomass of the community. This study provides a theoretical basis for vegetation restoration and sustainable development of degraded grassland.

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  • 收稿日期:2025-07-27
  • 最后修改日期:2025-11-18
  • 录用日期:2025-11-21
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