牦牛和藏羊放牧对青藏高原高寒草地植物群落氮库的影响

doi:10.11733/j.issn.1007-0435.2024.05.012

草地学报 ›› 2024, Vol. 32 ›› Issue (5): 1420-1428.DOI: 10.11733/j.issn.1007-0435.2024.05.012

• 研究论文 • 上一篇

牦牛和藏羊放牧对青藏高原高寒草地植物群落氮库的影响

吕卫东, 董全民, 孙彩彩, 刘文亭, 冯斌, 刘玉祯, 张振祥, 杨晓霞

青海大学畜牧兽医科学院, 青海省高寒草地适应性管理重点实验室, 三江源区高寒草地生态教育部重点实验室, 青海西宁 810016

收稿日期:2023-12-22 修回日期:2024-03-11 发布日期:2024-06-01
通讯作者: 杨晓霞，E-mail:xxyang@qhu.edu.cn
作者简介:吕卫东(1997-)，男，汉族，甘肃静宁人，硕士研究生，主要从事放牧草地生态学研究，E-mail:1913612253@qq.com
基金资助:
国家自然科学基金联合基金项目(U20A2007)；国家自然基金地区科学基金项目(32160343)；2021年度“西部之光”人才培养计划项目资助

Effects of Yak and Tibetan Sheep Grazing on Nitrogen Pool of Plant Communities of Alpine Grassland in the Qinghai Tibet Plateau

LYU Wei-dong, DONG Quan-min, SUN Cai-cai, LIU Weng-ting, FENG Bin, LIU Yu-zhen, ZHANG Zhen-xiang, YANG Xiao-xia

Qinghai Academy of Animal and Veterinary Science, Qinghai Provincial Key Laboratory of Adaptive Management on Alpine Grassland, Key Laboratory of Alpine Grassland Ecosystem in the Three-River-Source (Qinghai University), Ministry of Education, Xining, Qinghai Province 810016, China

Received:2023-12-22 Revised:2024-03-11 Published:2024-06-01

摘要/Abstract

摘要： 放牧是青藏高原高寒草地最主要的利用方式，牦牛和藏羊是青藏高原最常见的放牧家畜，家畜通过采食植物地上部分会使地上生物量减少，进而对植物群落氮库产生影响。本研究依托青海省高寒草地-家畜系统适应性管理技术平台的放牧试验样地，探讨不同家畜类型放牧对高寒草地植物群落氮库的影响。研究结果表明：未放牧处理下高寒草地地上生物量为180.0 g·m^-2，藏羊单独放牧显著降低了植物群落地上生物量。对未放牧处理下不同功能群氮素含量的研究发现：豆科植物(26.4 mg·g^-1)>杂类草(17.0 mg·g^-1)>禾草(12.9 mg·g^-1)≈莎草(11.8 mg·g^-1)。放牧显著增加了禾草和莎草氮含量，对杂类草氮含量影响较小。放牧对群落水平植物地上部分氮含量的影响变化小于对各功能群的变化影响，因为植物群落具有稳定性。当高寒草地植物群落处于放牧压力下，会从土壤中获取更多的氮以维持生长，放牧会进一步加剧青藏高原高寒草地植物生长的氮限制。

关键词: 放牧, 高寒草地, 植物群落, 功能群, 氮库

Abstract: Grazing is the predominant use way of alpine meadows in the Qinghai-Tibet Plateau,with yaks and Tibetan sheep being the most common grazers. These livestock consume the aboveground portions of plants,leading to reduction in aboveground biomass and subsequently impact on plant community nitrogen pools. This study utilized grazing experimental sites within the Alpine-Grassland Livestock Adaptive Management Technology Platform to investigate the effects of different livestock types on nitrogen pools of alpine grassland communities. The results indicated that under no-grazing condition,alpine grassland aboveground biomass was 180.0 g·m^-2. Tibetan sheep grazing significantly decreased the aboveground biomass of plant communities. In ungrazed treatment,nitrogen content among functional groups was the following order:Legumes (26.4 mg·g^-1) > Forbs (17.0 mg·g^-1) > Grass (12.9 mg·g^-1) ≈ Sedge (11.8 mg·g^-1). Grazing significantly increased nitrogen content in grass and sedge,while had a smaller effect on forbs. The influence of grazing on nitrogen content of the community level was less pronounced than on individual functional groups,due to the inherent stability of plant communities. When subjected to grazing pressure,alpine grassland plant communities obtained more nitrogen from the soil to sustain growth,and grazing further exacerbated nitrogen limitation in these high-elevation ecosystems.

Key words: Grazing, Alpine grassland, Plant community, Functional group, Nitrogen pool

中图分类号:

S821.4+3

吕卫东, 董全民, 孙彩彩, 刘文亭, 冯斌, 刘玉祯, 张振祥, 杨晓霞. 牦牛和藏羊放牧对青藏高原高寒草地植物群落氮库的影响[J]. 草地学报, 2024, 32(5): 1420-1428.

LYU Wei-dong, DONG Quan-min, SUN Cai-cai, LIU Weng-ting, FENG Bin, LIU Yu-zhen, ZHANG Zhen-xiang, YANG Xiao-xia. Effects of Yak and Tibetan Sheep Grazing on Nitrogen Pool of Plant Communities of Alpine Grassland in the Qinghai Tibet Plateau[J]. Acta Agrestia Sinica, 2024, 32(5): 1420-1428.

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参考文献

[1] 陈佐忠,汪诗平,王艳芬,等. 中国典型草原生态系统[M]. 北京:科学出版社,2000:1-2
[2] 任继周. 《中国草地生态保障与食物安全战略研究》专著总序[J]. 草业科学,2016,33(6):1019-1020
[3] 王根绪,程国栋,沈永平. 青藏高原草地土壤有机碳库及其全球意义[J]. 冰川冻土,2002,24(6):693-700
[4] DONG S K,GAO H W,XU G C,et al. Farmer and professional attitudes to the large-scale ban on livestock grazing of grasslands in China[J]. Environmental Conservation,2007,34(4):246-254
[5] LUIS LOPEZ-M,ALICE A,MARIANO O,et al. Grazing increases below-ground biomass and net primary production in a temperate grassland[J]. Plant and Soil,2015,392,155-162
[6] LIU J,FENG C,WANG D L,et al. Impacts of grazing by different large herbivores in grassland depend on plant species diversity[J]. Journal of Applied Ecology,2015,52(4):1053-1062
[7] ZHANG X Z,LI M,WU J S,et al. Alpine grassland aboveground biomass and theoretical livestock carrying capacity on the Tibetan Plateau[J]. Journal of Resources and Ecology,2022,13(1):129-141
[8] 王淼,张宇,张楚,等. 放牧强度对草甸草原植物群落主要功能群碳氮磷贮量的影响[J]. 草地学报,2022,30(1):125-133
[9] 杜凯. 祁连山高寒草甸植被、土壤特征和碳氮库对不同放牧方式的响应[D]. 兰州:甘肃农业大学,2020:35-38
[10] Li W,CAO W X,WANG J L,et al. Effects of grazing regime on vegetation structure,productivity,soil quality,carbon and nitrogen storage of alpine meadow on the Qinghai-Tibetan Plateau[J]. Ecological Engineering,2017,98:123-133
[11] FAN Y J,HOU X Y,SHI H X,et al. Effects of grazing and fencing on carbon and nitrogen reserves in plants and soils of alpine meadow in the three headwater resource regions[J]. Russian Journal of Ecology,2013,44(1):80-88
[12] SUN Y,PER-MARTEN S,JOHANNA P,et al. Nitrogen pools and cycles in Tibetan Kobresia pastures depending on grazing[J]. Biology and Fertility of Soils,2018(54):569-581
[13] XIONG D P,SHI P L,SUN Y L,et al. Effects of grazing exclusion on plant productivity and soil carbon,nitrogen storage in Alpine Meadows in northern Tibet,China[J]. Chinese Geographical Science,2014,11(4):488-498
[14] BI X,LI B,FU Q,et al. Effects of grazing exclusion on the grassland ecosystem of mountain meadows and temperature typical steppe in a mountain-basin system in Central Asia’s arid regions,China[J]. Science of the Total Environment,2018,630:254-263
[15] 韩建国,毛培胜,董宽虎,等.草地学[M].北京:中国农业出版社,2008:84-86
[16] 李直强. 草地退化和放牧时期对牛羊采食行为及采食互作关系的影响[D]. 长春:东北师范大学,2019:34-38
[17] 梁茂伟,梁存柱,白雪,等. 一年生植物功能群对放牧草原生物量和土壤呼吸的影响[J]. 草业科学,2016,33(12):2407-2417
[18] 赵丽娅,钟韩珊,赵美玉,等. 围封和放牧对科尔沁沙地群落物种多样性与地上生物量的影响[J]. 生态环境学报,2018,27(10):1783-1790
[19] 万里强,陈玮玮,李向林,等. 放牧对草地土壤含水量与容重及地下生物量的影响[J]. 中国农学通报,2011,27(26):25-29
[20] 王艳芬,汪诗平. 不同放牧率对内蒙古典型草原地下生物量的影响[J]. 草地学报,1999,7(3):198-203
[21] 泽让东科,文勇立,艾鷖,等. 放牧对青藏高原高寒草地土壤和生物量的影响[J]. 草业科学,2016,33(10):1975-1980
[22] COUGHENOUR M B. Graminoid responses to grazing by large herbivorous:Adaptation,exaptations,and interacting processes[J]. Annals of the Missouri Botanical Garden,1985,72(4):852-863
[23] 侯扶江. 放牧对牧草光合作用、呼吸作用和氮、碳吸收与转运的影响[J]. 应用生态学报,2001,12(6):938-942
[24] GAO Y Z,GIESE M,LIN S,et al. Belowground net primary productivity and biomass allocation of a grassland in Inner Mongolia is affected by grazing intensity[J]. Plant and Soil,2008,307:41-50
[25] 陈锦,宋明华,李以康.¹³C脉冲标记揭示放牧对高寒草甸同化碳分配的影响[J]. 植物生态学报,2019,43(7):576-584
[26] 冯斌,杨晓霞,刘文亭,等. 不同放牧方式对高寒草地功能群生态化学计量特征的影响[J]. 草地学报,2022,30(5):1063-1070
[27] 白正. 季节性放牧对内蒙古典型草原植被与土壤影响的研究[D]. 呼和浩特:内蒙古大学,2020:31-33
[28] GONG J R,WANG Y,LIU M,et al. Effects of land use on soil respiration in the temperate steppe of Inner Mongolia,China[J]. Soil and Tillage Research,2014,144(6):20-31
[29] 刘柏. 不同放牧方式对草地土壤氮矿化速率的作用及调控机制[D]. 长春:东北师范大学,2018:20-26
[30] 李书田,刘荣乐,陕红.我国主要畜禽粪便养分含量及变化分析[J]. 农业环境科学学报,2009,28(1):179-184
[31] BI X,LI B,FU Q,et al. Effects of grazing excelusion the grassland ecosystems of mountain meadows and temperate typical steppe in a mountain-basin system in Central Asia's arid regions,China[J]. Science of the Total Environment,2018,630:254-263
[32] 杜宝红,高翠萍,哈达朝鲁.不同放牧强度对锡林郭勒典型草原生产力及碳储量的影响[J].水土保持研究,2018,25(1):139-146
[33] KING J W,LEGG A J,SMITH P A. Observations of spread ionization in the topside of the ionosphere[J]. Journal of Atmospheric and Terrestrial Physics,1967,29(11):1373-1376
[34] 宋珊珊,张建胜,郑天立,等. 围栏封育对青海海北高寒草甸植被碳储量的影响[J]. 草业科学,2020,37(12):2414-2421
[35] 张继义,赵哈林. 植被(植物群落)稳定性研究评述[J]. 生态学杂志,2003,22(4):42-48

牦牛和藏羊放牧对青藏高原高寒草地植物群落氮库的影响

Effects of Yak and Tibetan Sheep Grazing on Nitrogen Pool of Plant Communities of Alpine Grassland in the Qinghai Tibet Plateau

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