添加氮素对退化高寒草地植被及营养品质的影响

doi:10.11733/j.issn.1007-0435.2021.12.014

草地学报 ›› 2021, Vol. 29 ›› Issue (12): 2742-2751.DOI: 10.11733/j.issn.1007-0435.2021.12.014

添加氮素对退化高寒草地植被及营养品质的影响

王玉琴, 宋梅玲, 王宏生, 尹亚丽, 马玉寿

省部共建三江源生态与高原农牧业国家重点实验室, 青海大学畜牧兽医科学院, 青海西宁 810016

收稿日期:2021-05-26 修回日期:2021-06-23 出版日期:2021-12-15 发布日期:2022-01-06
作者简介:王玉琴(1988-)，女，甘肃兰州人，博士，助理研究员，主要从事高寒草地保护研究，E-mail:gsndwangyuqin@126.com
基金资助:
青海省科技成果转化专项（2019-SF-151，2016-NK-136）资助

Effects of Nitrogen Addition on Vegetation and Forage Nutritional Quality of Degraded Alpine Grassland

WANG Yu-qin, SONG Mei-ling, WANG Hong-sheng, YIN Ya-li, MA Yu-shou

State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University of Animal Science and Veterinary Medicine, Xining, Qinghai Province 810016, China

Received:2021-05-26 Revised:2021-06-23 Online:2021-12-15 Published:2022-01-06
Contact: 马玉寿,E-mail:mayushou@sina.com;王宏生,E-mail:wanghs1967@aliyun.com

摘要/Abstract

摘要： 施肥是众多草地恢复措施中提高草地肥力的主要方式之一，为了探讨高寒退化草地适宜的氮（N）添加量，以高寒退化草地为研究对象，设置不同施氮水平N1（10 kg·hm^-2），N2（20 kg·hm^-2），N3（30 kg·hm^-2），N4（40 kg·hm^-2），分析添加氮素对高寒退化草地群落物种多样性，生产力及牧草品质的影响。结果表明：随着施氮年份的延长，各施氮水平的物种数及多样性均明显降低，但各施氮水平间差异不明显；施氮增加了可食牧草地上生物量，总体表现为N3和N4水平高于其他水平，各功能群地上生物量在各施氮水平间以及同一施氮水平不同年份间的差异都不显著；施氮显著增加了牧草粗蛋白和粗脂肪含量（P<0.05），随着施氮水平的增加，粗蛋白和粗脂肪含量均呈增加趋势，其中N4水平粗蛋白含量提高了41.55%。通过主成分分析以及结合草地群落变化特征，将高寒退化草地施氮量初步定为30~40 kg·hm^-2。本研究结果可为高寒退化草地的可持续性恢复和管理提供一定的理论基础。

关键词: 施肥, 地上生产力, 物种多样性, 牧草品质

Abstract: Fertilization is one of the main ways to improve grassland fertility in many grassland restoration measures. To explore the suitable amount of nitrogen (N) in alpine degraded grassland,four levels of nitrogen:N1 (10 kg·hm^-2),N2 (20 kg·hm^-2),N3 (30 kg·hm^-2),N4 (40 kg·hm^-2) were set as fertilization gradients. The effects of nitrogen application on the species diversity,productivity,and forage quality of the alpine degraded grassland community were studied. The results showed that with the prolongation of nitrogen application years,the number and diversity of species at different nitrogen application levels decreased significantly,but there was no significant difference among different nitrogen application levels. Nitrogen application increased the aboveground biomass of edible herbage,and the overall performance of N3 and N4 were higher than other levels. The aboveground biomass of each functional group had no significant difference among nitrogen application levels and the same nitrogen application level in different years. Nitrogen application significantly increased the crude protein and ether extract content of forage (P<0.05). With the increase of nitrogen application level,the contents of crude protein and ether extract showed an increasing trend,and the crude protein content of N4 level increased by 41.55%. Based on the principal component analysis and combined with the change characteristics of grassland communities,the nitrogen application rate of alpine degraded grassland was preliminarily set at 30 kg·hm^-2~40 kg·hm^-2. The results of this study can provide a theoretical basis for the sustainable restoration and management of alpine degraded grasslands.

Key words: Fertilization, Aboveground productivity, Species diversity, Forage quality

中图分类号:

王玉琴, 宋梅玲, 王宏生, 尹亚丽, 马玉寿. 添加氮素对退化高寒草地植被及营养品质的影响[J]. 草地学报, 2021, 29(12): 2742-2751.

WANG Yu-qin, SONG Mei-ling, WANG Hong-sheng, YIN Ya-li, MA Yu-shou. Effects of Nitrogen Addition on Vegetation and Forage Nutritional Quality of Degraded Alpine Grassland[J]. Acta Agrestia Sinica, 2021, 29(12): 2742-2751.

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参考文献

[1] 曹建军.青藏高原地区草地可持续利用研究[D].兰州:兰州大学,2011:11
[2] 卢成保,侯留飞.青海省祁连县草地退化原因分析及治理对策[J].今日畜牧兽医,2018,34(2):62
[3] FENSHAM R J,HOLMAN J E,COX M J. Plant species responses along a grazing disturbance gradient in Australian grassland[J]. Journal of vegetation Science,1999,10(1):77-86
[4] 郑丽娜,邢旗,樊俊梅,等.施肥对科尔沁地区退化打草场的影响[J].草原与草业,2018,30(3):55-59
[5] 刘文辉,刘勇,马祥,等.高寒区施肥和混播对燕麦人工草地生物碳储量影响的研究[J].草地学报,2018,26(5):1150-1158
[6] 周学东,沈景林,高宏伟,等.叶面施肥对高寒草地产草量及牧草营养品质的影响[J].草业学报,2000(3):14-23
[7] 高中超,迟凤琴,赵秋.施肥对退化草原植物群落产量及土壤理化性质的影响[J].草原与草坪,2007(2):60-62
[8] FRIDLEY J D. Resource availability dominates and alters the relationship between species diversity and ecosystem productivity in experimental plant communities[J]. Oecologia,2002,132(2):271-277
[9] WANG C T,LONG R J,WANG Q L,et al. Fertilization and litter effects on the functional group biomass,species diversity of plants,microbial biomass and enzyme activity of two alpine meadow communities[J]. Plant and Soil,2010,331(1/2):377-389
[10] RAJANIEMI T K. Why does fertilization reduce plant species diversity?Testing three competition-based hypotheses[J]. Journal of Ecology,2002,90(2):316-324
[11] 李文娇,王慧,赵建宁,等.氮素和水分添加对贝加尔针茅草原植物功能群地上生物量的影响[J].中国草地学报,2015,37(2):7-13
[12] 曹文侠,李文,李小龙,等.施氮对高寒草甸草原植物群落和土壤养分的影响[J].中国沙漠,2015,35(3):658-666
[13] 曹丰丰,刘瑞雪,黄国柱,等.短期氮添加对祁连山亚高山草地生产力及植物多样性的影响[J].生态学报,2021,41(12):5034-5044
[14] 祁瑜,黄永梅,王艳,等.施氮对几种草地植物生物量及其分配的影响[J].生态学报,2011,31(18):5121-5129
[15] 李文娇,刘红梅,赵建宁,等.氮素和水分添加对贝加尔针茅草原植物多样性及生物量的影响[J].生态学报,2015,35(19):6460-6469
[16] 许振柱,周广胜.全球变化下植物的碳氮关系及其环境调节研究进展-从分子到生态系统[J].植物生态学报,2007,31(4):738-747
[17] 景美玲,马玉寿,李世雄,等.氮肥对大通河上游退化草地的影响[J].草地学报,2016,24(3):518-523
[18] 邱波,罗燕江,杜国祯.施肥梯度对甘南高寒草甸植被特征的影响[J].草业学报,2004(6):65-68
[19] 王玉琴,鲍根生,宋梅玲,等.两种措施下施氮肥对狼毒型退化草地群落及营养品质的影响[J].草业学报,2018,27(12):177-186
[20] 王玉琴,王宏生,宋梅玲,等.秋季刈割对高寒退化草地植被和土壤生态属性的影响[J].中国草地学报,2020,42(3):61-69
[21] 王长庭,王根绪,刘伟,等.施肥梯度对高寒草甸群落结构、功能和土壤质量的影响[J].生态学报,2013,33(10):3103-3113
[22] 程积民,贾恒义,彭祥林.施肥草地植被群落结构和演替的研究[J].水土保持研究,1996,3(4):124-128
[23] 董祥开,刘恩财,衣莹,等.氮磷钾对燕麦产量和品质的影响研究进展[J].农机化研究,2008(11):219-222
[24] 刘皓栋,曹文侠,李文,等.施氮15龄不同组合禾草混作草地的改良研究[J].草地学报,2015,23(5):1109-1113
[25] 陈亚明,李自珍,杜国祯.施肥对高寒草甸植物多样性和经济类群的影响[J].西北植物学报,2004,24(3):424-429
[26] WALKER M D,WEBBER P J,ARNOLD E H,et al. Effects of interannual climate variation on aboveground phytomass in alpine vegetation[J]. Ecology,1994,75:393-408
[27] 周国英,陈桂琛,徐文华,等.围栏封育对青海湖地区芨芨草草原生物量的影响[J].干旱区地理,2010,33(3):434-441
[28] 李青云,李建平,董全民,等.江河源头不同程度退化小嵩草高寒草甸草场的封育效果[J].草业科学,2006,23(12):16-21
[29] GOUGH L,OSENBERG C W,GROSS K L,et al. Fertilization effects on species density and primary productivity in herbaceous plant communities[J]. Oikos,2000,89(3):428-439
[30] BOWMAN W D. Accumulation and use of nitrogen and phosphorus following fertilization in two alpine tundra communities[J]. Oikos,1994,70:261-270
[31] 宗宁,石培礼,蔣婧,等.施肥和围栏封育对退化高寒草甸植被恢复的影响[J].应用与环境生物学报,2013,19(6):905-913
[32] 张娇娇,刘培培,李小刚,等.施肥和刈割对高寒天然草场牧草产量及营养品质的影响[J].草地学报,2017,25(4):885-887
[33] 郭艳红,蒲小剑,蒲小朋,等.青藏高寒牧区天然草地地上生物量和营养品质的变化规律[J].草地学报,2021,29(4):734-742
[34] 张春林,韩向敏,郎侠,等.青藏高原东北缘不同草地类型牧草营养品质动态[J].草业科学,2019,36(3):763-771
[35] 姜翠霞,胡长胜,魏海燕,等.夏季模拟放牧对青藏高原冬春草场牧草品质和土壤养分的影响[J].草地学报,2020,28(5):1473-1477
[36] ZHAO L P,SU J S,WU G L,et al. Long-Term Effects of Grazing Exclusion on Aboveground and Belowground Plant Species Diversity in a Steppe of the Loess Plateau,China[J]. Plant Ecology and Evolution,2011,144(3):313-320
[37] WANG C H,HAN X G,XING X R. Effects of grazing exclusion on soil net nitrogen mineralization and nitrogen availability in a temperate steppe in northern China[J]. Journal of Arid Environments,2010,74(10):1287-1293
[38] LI Y Q,ZHAO H L,ZHAO X Y,et al. Effects of grazing and livestock exclusion on soil physical and chemical properties in desertified sandy grassland,Inner Mongolia,northern China[J]. Environmental Earth Sciences,2011,63(4):771-783
[39] CHENG J,WU GL,ZHAO L P, et al. Cumulative effects of 20-year exclusion of livestock grazing on above-and belowground biomass of typical steppe communities in arid areas of the Loess Plateau,China[J]. Plant Soil&Environment,2011,57(1):40-44
[40] 李媛媛,董世魁.围栏封育对黄河源区退化高寒草地植被组成及生物量的影响[J].草地学报,2012,20(3):275-286
[41] 王锋佰,张卓,魏兴臣,等.浅谈围封在我国退化草原生态修复中的作用[J].农业开发与装备,2019(9):67-68,70
[42] SONG S,ZHU J,ZHENG T,et al. Long-term grazing exclusion reduces species diversity but increases community heterogeneity in an Alpine Grassland[J]. Frontiers in Ecology and Evolution,2020(8):66

添加氮素对退化高寒草地植被及营养品质的影响

Effects of Nitrogen Addition on Vegetation and Forage Nutritional Quality of Degraded Alpine Grassland

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