Effects of nutrient addition on vegetation productivity and community structure stability
YOU Chun-he1, GAO Ji-xi1, TIAN Mei-rong2, LI Han-ting2, ZHU San-ning1,2, LI Han-Cong3
1. Satellite Application Center for Ecology and Environment, Ministry of Ecology and Environment, Beijing 100094, China; 2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; 3. College of Geographic Sciences, Hebei Normal University, Shijiazhuan 050024, China
Abstract：Taking degraded grassland in Xilin Gol, Inner Mongolia as the research object, this study evaluated grassland productivity and community structural stability by adding nitrogen, phosphorus and potassium nutrients to the experimental plots based on the method of "3414" test design. The effects of compound nutrient on the structure and stability of grassland community varied under different ratios, and that an appropriate nitrogen, phosphorus and potassium ratio, significantly increased grassland biomass, promoted the recovery of dominant vegetation and improved the community stability. The comprehensive evaluation results indicated that the ratio of N 4.19g/m2, P 1.85g/m2and K 1.21g/m2could significantly increase the density, height and aboveground biomass of the dominant species Leymus chinensis(P<0.05), and notably reduce the density and biomass of the degradation indicator species Cleistogenes squarrosa(P<0.05), which means the importance value of the dominant species was increased while that of the degradation indicator species was decreased. Reasonable nutrient regulation pattern can be an important approach to grassland ecological restoration.
尤春赫, 高吉喜, 田美荣, 李菡庭, 朱萨宁, 李涵聪. 养分添加对植被生产力与群落结构稳定性影响[J]. 中国环境科学, 2023, 43(9): 4801-4809.
YOU Chun-he, GAO Ji-xi, TIAN Mei-rong, LI Han-ting, ZHU San-ning, LI Han-Cong. Effects of nutrient addition on vegetation productivity and community structure stability. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(9): 4801-4809.
尹亚丽,王玉琴,李世雄,等.围封对退化高寒草甸土壤微生物群落多样性及土壤化学计量特征的影响[J]. 应用生态学报, 2019, 30(1):127-136. Yin Y L, Wang Y Q, Li S X, et al. Effects of enclosing on soil microbial community diversity and soil stoichiometric characteristics in a degraded alpine meadow[J]. Chinese Journal of Applied Ecology, 2019,30(1):127-136.
[2]
陆婷婷,翟夏杰,刘晓娟,等.施肥、灌溉及火烧对荒漠草原土壤养分和植物群落特征的影响[J]. 中国草地学报, 2014,36(3):57-60. Lu T T, Zhai X J, Liu X J, et al. Influences of fertilizer, irrigation fire on community characteristics and soil nutrient in desert steppe[J]. Chinese Journal of Grassland, 2014,36(3):57-60.
[3]
高若凡,张天宇,白杨,等.不同改良措施对退化割草场物种多样性及群落生产力的影响[J]. 中国草地学报, 2019, 41(6):98-104. Gao R F, Zhang T Y, Bai Y, et al. Effects of different improvement measures on species diversity and community productivity of degraded mowing grassland[J]. Chinese Journal of Grassland, 2019, 41(6):98-104.
[4]
Chinea E, Arevalo J R. Effects of fertilization management on pasture productivity and nutrient composition[J]. Grass and Forage Science, 2013,69(3):415-424.
[5]
Xu X T, Liu H Y, Song Z L, et al. Response of aboveground biomass and diversity to nitrogen addition along a degradation gradient in the Inner Mongolian steppe China[J]. Scientific Reports, 2015,5(1):10284.
[6]
Wang H D, Zhang L L, Zhu Z H. Effects of clipping and fertilizing on the relationships between species diversity and ecosystem functioning and mechanisms of community stability in alpine meadow[J]. Chinese Journal of Plant Ecology, 2013,37:279-295.
[7]
Stevens C, Lind E, Hautier Y, et al. Anthropogenic nitrogen deposition predicts local grassland primary production worldwide[J]. Ecology, 2016,96(6):1459-1465.
[8]
Avolio M L, Koerner S E, Pierre K, et al. Changes in plant community composition, not diversity, during a decade of nitrogen and phosphorus additions drive above-ground productivity in a tallgrass prairie[J]. Journal of Ecology, 2015,102(6):1649-1660.
[9]
Lehman C L, Tilman D. Biodiversity, stability, and productivity in competitive communities[J]. The American Naturalist, 2000,156(5):534-552.
[10]
刘晶,杨雪,张博,等.长期施肥对黄土高原典型草原群落稳定性的影响及机制研究[J]. 西北植物学报, 2021,41(2),310-316. Liu J, Yang X, Zhang B, et al. Effect of longterm fertilization on community stability of typical Steppe and the underlying mechanisms on the Loess Plateau[J]. Acta Botanica Boreali-Occidentalia Sinica, 2021,41(2):310-316.
[11]
赵娜.植物多样性和施肥对典型草原群落生物量空间稳定性的影响[J]. 草地学报, 2012,20(1):194. Zhao N. Effects of plant diversity and fertilization on spatial stability of biomass in typical steppe communities[J]. Acta Agrestia Sinica, 2012,20(1):194.
[12]
Dickson T L, Gross K L. Plant community responses to long-term fertilization:changes in functional group abundance drive changes in species richness.[J]. Oecologia, 2013,173(4):1513-1520.
[13]
Fay P, Prober S, Harpole W, et al. Grassland productivity limited by multiple nutrients[J]. Nature Plants, 2015,1(7):15080.
[14]
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. Chen Y M, Li Z Z, Du G Z. Effects of fertilization on plant diversity and economic herbage groups in alpine meadow[J]. Acta Botanica Boreali-Occidentalia Sinica, 2004,24(3):424-429.
[15]
Loreau M, De Mazancourt C, Duffy E. Biodiversity and ecosystem stability:a synthesis of underlying mechanisms[J]. Ecology Letters, 2013,16(s1):106-115.
[16]
奇立敏,宝音陶格涛,李雅茹,等.切根方式和氮素添加对退化羊草草地改良效果分析[J]. 中国草地学报, 2017,39(4):67-71. Qi L M, Tao Ge Tao B Y, Li Y R, et al. Improving effects of root cutting ways and nitrogen additions on degraded Leymus chinensis grassland in Inner Mongolia[J]. Chinese Journal of Grassland, 2017, 39(4):67-71.
[17]
张爽,吕世杰,丁莉君,等.羊草草甸草原群落多样性对打孔和施肥的响应[J]. 中国草地学报, 2019,41(4):80-86. Zhang S, Lv S J, Ding L J, et al. Response of community diversity to drilling and fertilization in leymus chinensis meadow grassland[J]. Chinese Journal of Grassland, 2019,41(4):80-86.
[18]
何兴东,高玉葆,刘惠芬.重要值的改进及其在羊草群落分类中的应用[J]. 植物研究, 2004,24(4):466-472. He X D, Gao Y B, Liu H F. Amending of importance value and its application on classification of Leymus chinensis communities[J]. Bulletin of Botanical Research, 2004,24(4):466-472.
[19]
张楚,王淼,张宇,等.切根与施有机肥对羊草草甸草原打草场地上生物量与土壤养分的影响[J]. 草地学报, 2022,30(1):220-228. Zhang C, Wang M, Zhang Y, et al. Effects of root cutting and organic fertilizer application on aboveground biomassand soil nutrients in the mowing ggrassland of Leymus chinensis Meadow[J]. Acta Agrestia Sinica, 2022,30(1):220-228.
[20]
赵洁,李伟,井光花,等.黄土区封育和放牧草地物种多样性和地上生物量对氮素添加的响应[J]. 草业学报, 2017,26(8):54-64. Zhao J, Li W, Jing G H, et al. Responses of species diversity and aboveground biomas is to nitrogen addition in fenced and grazed grassland on the Loess Plateau[J]. Acta Agrestia Sinica, 2017,26(8):54-64.
[21]
张馨文,安慧,刘小平,等.短期氮添加对荒漠草原植物群落组成及稳定性的影响[J]. 生态学杂志, 2021,40(8):2400-2409. Zhang X W, An H, Liu X P, et al. Effects of short-term nitrogen addition on plant community composition and stability ofdesert steppe[J]. Chinese Journal of Ecology, 2021,40(8):2400-2409.
[22]
郑佳华,张峰,赵天启,等.氮、磷、钾施配对大针茅割草地地上生物量的影响[J]. 中国草地学报, 2020,42(5):64-71. Zheng J H, Zhang F, Zhao T Q, et al. Effects of nitrogen, phosphorus and pootassium combinations on aboveground biomass of Stipa granndis clipping pasture[J]. Chinese Journal of Grassland, 2020,42(5):64-71.
[23]
张彦东,沈有信,刘文耀.金沙江干旱河谷退化草地群落对氮磷施肥的反应[J]. 植物研究, 2004,24(1):59-64. Zhang Y D, Shen Y X, Liu W Y. Fertilization effects of N、P on a grass community at the dryvalley of Jinsha River[J]. Bulletin of botanical research, 2004,24(1):59-64.
[24]
Zhou M, Yang Q, Zhang H, et al. Plant community temporal stability in response to nitrogen addition among different degraded grasslands[J]. Science of the Total Environment, 2020,729:138886.
[25]
Yang Z L, Ruijven J V, Du G Z. The effects of long-term fertilization on the teporal stability of alpine meadow communities[J]. Plant and Soil, 2011,345(1/2):315-324.
