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[1]CHENG Jie,ZHANG Rui,YANG Peizhi,et al.Restoration of Typical Degraded Grassland in Loess Region During 40 Years[J].Research of Soil and Water Conservation,2023,30(01):34-40.[doi:10.13869/j.cnki.rswc.2023.01.026]

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Restoration of Typical Degraded Grassland in Loess Region During 40 Years

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 30 Number of periods: 2023 01 Page number: 34-40 Column: Public date: 2023-01-10

Title:: Restoration of Typical Degraded Grassland in Loess Region During 40 Years

Author(s):: CHENG Jie¹, ZHANG Rui¹, YANG Peizhi², ZHANG Yuan¹, LIU Yushu², LI Weijun³; (1.Northwest Surveying, Planning Institute, National Forestry and Grassland Administration, Key Laboratory National Forestry Administration on Ecological Hydrology and Disaster Prevention in Arid Regions, Xian 710048 China; 2.Northwest A&F University, Yangling, Shaanxi 712100, China; 3.Yunwu Mountain Nature Reserve of Ningxia, Guyuan, Ningxia 756000, China)

Keywords:: grassland degradation; grazing exclusion; Loess Plateau; succession

CLC:: S812

DOI:: 10.13869/j.cnki.rswc.2023.01.026

Abstract:: Grassland degradation has severely damaged soil and vegetation, and the succession process of grassland has been strongly inhibited. To this end, a long-term(40-year)ban and restoration technology was used in the experiment to explore the characteristics of vegetation changes in the degraded grassland in the loess area after the ban, and to reveal the ecological and environmental effects of the degraded natural grassland after the ban and restoration. The results show that as the closure time changes, the degraded grasslands resume succession. After five stages, the biomass of grassland showed a trend of first increasing and then decreasing, the highest value was 520.5 g/m² when the ban was restored for 20 years. In the 25th year of the ban, the grassland community with Stipa capillata as the constructive species showed obvious decline and degradation, while the population density of Stipa grandis increased sharply. In the 30～32 years of the ban, the dominant species with Stipa grandis as the community grew more andwasstable. From the perspective of the succession process of the community, Stipa grandis hada tendency to replace Stipa grandis, but the duration wasrelatively short. With the continuation of the closure period, 33 years after the restoration of the degraded grassland from the natural closure, through several successive stages of invasion-competition-diffusion-settlement, a relatively stable ‘sub-type' with the Stipa capillata population as the constructive species hadformed. In addition, the abundance and diversity of grassland species after the ban hadgradually increased. In summary, the closure is conducive to the restoration of the grassland plant ecosystem in the middle reaches of the Yellow River, and as the closure time evolves, the grassland ecosystem gradually stabilizes.

References:: [1] 程积民,井赵斌,金晶炜,等.黄土高原半干旱区退化草地恢复与利用过程研究[J].中国科学:生命科学,2014,44(3):267-279.
[2] 张志南,武高林,王冬,等.黄土高原半干旱区天然草地群落结构与土壤水分关系[J].草业学报,2014,23(6):313-319.
[3] 柳海鹰,李政海,刘玉虹,等.羊草草原在放牧退化与围封恢复过程中群落性状差异的变化规律[J].内蒙古大学学报:自然科学版,2000,31(3):314-318.
[4] Wang Jie, Wang Xiangtao, Liu Guobin, et al. Fencing as an effective approach for restoration of alpine meadows: Evidence from nutrient limitation of soil microbes[J]. Geoderma,2020,363:114148.
[5] 李永宏,汪诗平.放牧对草原植物的影响[J].中国草地,1999(3):11-19.
[6] 张继义,赵哈林.科尔沁沙地草地植被恢复演替进程中群落优势种群空间分布格局研究[J].生态学杂志,2004,23(2):1-6.
[7] Noy-Meir I. Compensating growth of grazed plants and its relevance to the use of rangelands[J]. Ecological Applications, 1993,3(1):32-34.
[8] 闫玉春,唐海萍,辛晓平,等.围封对草地的影响研究进展[J].生态学报,2009,29(9):5039-5046.
[9] Cowles H C. The ecological relations of the vegetation on the sand dunes of Lake Michigan(concluded)[J]. Botanical Gazette, 1899,27(5):361-391.
[10] Olson J S. Rates of succession and soil changes on southern Lake Michigan sand dunes[J]. Botanical Gazette, 1958,119(3):125-170.
[11] 朱志梅,杨持.沙漠化过程中植物的变化和适应机理研究概述[J].内蒙古大学学报:自然科学版,2003,34(1):103-114.
[12] 张龙生.毛乌素沙地东南部人工植被演替研究[J].中国沙漠,1994,14(1):79-82.
[13] 陈生永.沙地植被演替研究成果综述[J].山西水土保持科技,2001(4):23-26.
[14] 辛晓平,徐斌,单保庆,等.恢复演替中草地斑块动态及尺度转换分析[J].生态学报,2000,20(4):587-593.
[15] 徐彩琳,李自珍.干旱荒漠区人工植物群落演替模式及其生态学机制研究[J].应用生态学报,2003,14(9):1451-1456.
[16] 陈云云,谢应忠.退化草地恢复过程中植被与环境动态特征研究[J].农业科学研究,2004(1):21-24.
[17] 王占军,蒋齐,潘占兵,等.宁夏毛乌素沙地退化草原恢复演替过程中物种多样性与生产力的变化[J].草业科学,2005,22(4):5-8.
[18] 闫玉春,唐海萍.围栏禁牧对内蒙古典型草原群落特征的影响[J].西北植物学报,2007,27(6):1225-1232.
[19] 李永强,许志信.典型草原区撂荒地植物群落演替过程中物种多样性变化[J].内蒙古农业大学学报:自然科学版,2002,23(4):26-31.
[20] 许志信,李永强,额尔德尼,李华.草原弃耕地植物群落特征和植被演替情况的调查研究[J].内蒙古草业,2002(03):10-13.
[21] 张金屯.植被数量生态学方法[M].北京:中国科学技术出版社,1995.
[22] 张大勇.理论生态学研究[M].北京:高等教育出版社,2000.
[23] 赵凌平,谭世图,白欣,等.封育和放牧对黄土高原典型草原繁殖更新的影响[J].西北农林科技大学学报:自然科学版,2016,44(9):27-34.
[24] 蔡飞,宋永昌.武夷山木荷种群结构和动态的研究[J].植物生态学报,1997,21(2):138-148.

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Last Update: 2023-01-10