放牧强度对草甸草原羊草功能性状的影响

doi:10.3864/j.issn.0578-1752.2020.13.005

Abstract

Abstract:

【Objective】 The objective of this study was to study the response of important value (IV) and functional traits of dominant species of Leymus chinensis to grazing intensity in meadow steppe and to observe whether Leymus chinensis adapts to changes in the external environment by adjusting its various functional traits (such as plants, stems, leaves and so on) , so as to provide reference for rational grazing utilization of grassland. 【Method】 Six grazing intensities were set by control experiments, including control (G0: 0), mild (G0.23: 0.23 cow.AU/hm ²), light to moderate (G0.34: 0.34 cow.AU/hm²), moderate (G0.46: 0.46 cow.AU/hm²), heavy(G0.69: 0.69 cow.AU/hm²), and extremely very heavy (G0.92: 0.92 cow.AU/hm²), with three replicates. The IV of the dominant species of Leymus chinensis and its plant traits (plant height, stem weight, leaf weight, stem﹕leaf, and plant weight) and leaf traits (morphological traits:leaf area, single leaf weight, specific leaf area (SLA), leaf length, and leaf width; physiological traits: leaf carbon(C) and nitrogen (N) content, and C/N) were determined in each treatment. Among them, IV of Leymus chinensis was obtained by randomly selecting five 1 m×1 m plant community plots in the experiment plots. The functional characteristics of Leymus chinensis were determined by randomly selecting individual Leymus chinensis plants in each experiment plot. 【Result】 (1) Compared with G0, the decrease of Leymus chinensis IV was 42.9%, 66.0%, 82.7%, 91.8%, and 91.2% with the increase of grazing intensity. (2) Leymus chinensis plant traits (plant height, stem weight, leaf weight, and stem﹕leaf) decreased gradually with the increase of grazing intensity. The stem﹕leaf of Leymus chinensis plants was less than 1 in different grazing intensities, and G0.92 was significantly reduced by 39.22% compared with G0. The leaf area, leaf weight, leaf length and leaf width of leaf traits gradually decreased with the increase of grazing intensity. However, the SLA increased with the increase of grazing intensity, and it was the largest at G0.92, with a value of 136.61 cm ²·g^-1, which increased 23.7%, 19.0%, 17.8%, 20.2%, and 13.2%, respectively, compared to G0, G0.23, G0.34, G0.46, and G0.69. (3) Leymus chinensis leaves C and N content was 44.2% and 2.8% under extremely heavy grazing (G0.92), respectively. With the increase of grazing intensity, the overall change of Leymus chinensis leaves C content was relatively stable, but leaves N content increased continuously. Compared with G0, the Leymus chinensis leaves N content in G0.69 and G0.92 increased by 21.8% and 43.2%, respectively. (4) Correlation analysis showed that Leymus chinensis leaves SLA was a significant positive correlation with N content and a significant negative correlation with C content. The leaf morphological traits were significantly correlated with physiological traits, the morphological traits were mainly with single leaf weight, and the physiological traits were mainly with C/N. 【Conclusion】 The grazing intensity changed the dominance of Leymus chinensis and made the individual Leymus chinensis plants smaller, reduced stem: leaf, but Leymus chinensis changed the leaves SLA and N content in response to changes in the external environment. Especially under extremely heavy grazing conditions, the SLA and N content increased synergistically.

Key words: grazing intensity, meadow steppe, Leymus chinensis, functional traits

HOU LuLu,YAN RuiRui,ZHANG Yu,XIN XiaoPing. Effects of Grazing Intensity on Functional Traits of Leymus chinensis in Meadow Steppe[J].Scientia Agricultura Sinica, 2020, 53(13): 2562-2572.

0
/ / Recommend

Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks

URL: https://www.chinaagrisci.com/EN/10.3864/j.issn.0578-1752.2020.13.005

https://www.chinaagrisci.com/EN/Y2020/V53/I13/2562

Figures/Tables 10

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Table 1

Table 2

Table 3

Fig. 7

References 27

[1]	王堃, 韩建国, 周禾. 中国草业现状及发展战略. 草地学报, 2002,10(4):293-297.
	WANG K, HAN J G, ZHOU H. The current situation and developing strategy of Chinese grassland industry. Acta Agrestia Sinica, 2002,10(4):293-297. (in Chinese)
[2]	侯向阳, 徐海红. 不同放牧制度下短花针茅荒漠草原碳平衡研究. 中国农业科学, 2011,44(14):3007-3015.
	HOU X Y, XU H H. Research on carbon balance of different grazing systems in Stipa breviflora desert steppe. Scientia Agricultura Sinica, 2011,44(14):3007-3015. (in Chinese)
[3]	潘琰, 龚吉蕊, 宝音陶格涛, 罗亲普, 翟占伟, 徐沙, 王忆慧, 刘敏, 杨丽丽. 季节放牧下内蒙古温带草原羊草根茎叶功能性状的权衡. 植物学报, 2017,52(3):307-321.
	PAN Y, GONG J R, BAOYIN T G T, LUO Q P, ZHAI Z W, XU S, WANG Y H, LIU M, YANG L L. Effect of seasonal grazing on trade-off among plant functional traits in root, stem and leaf of Leymus chinensis in the temperate grassland of Inner Mongolia, China. Chinese Bulletin of Botany, 2017,52(3):307-321. (in Chinese)
[4]	赵娜, 赵新全, 赵亮, 徐世晓, 邹小艳. 植物功能性状对放牧干扰的响应. 生态学杂志, 2016,35(7):1916-1926.
	ZHAO N, ZHAO X Q, ZHAO L, XU S X, ZOU X Y. Progress in researches of the response of plant functional traits to grazing disturbance. Chinese Journal of Ecology, 2016,35(7):1916-1926. (in Chinese)
[5]	汪诗平, 王艳芬, 陈佐忠. 放牧生态系统管理. 北京: 科学出版社, 2003.
	WANG S P, WANG Y F, CHEN Z Z. Grazing Ecosystem Management Beijing: Science Press, 2003. (in Chinese)
[6]	刘晓娟, 马克平. 植物功能性状研究进展. 中国科学:生命科学, 2015,45(4):325-339.
	LIU X J, MA K P. Plant functional traits-Concepts, applications and future directions. Scientia Sinica Vitae, 2015,45(4):325-339. (in Chinese)
[7]	晁永芳. 放牧活动对草原植物功能性状及其权衡关系的调控. 当代畜牧, 2018(2):1-2.
	CHAO Y F. Regulation of grazing activities on grassland plant functional traits and their trade-off relationships. Contemporary Animal Husbandry, 2018(2):1-2. (in Chinese)
[8]	MCINTIRE E J B, HIK D S. Grazing history versus current grazing: leaf demography and compensatory growth of three alpine plants in response to a native herbivore (Ochotona collaris). Journal of Ecology, 2002,90(2):348-359.
[9]	戈峰. 现代生态学. 北京: 科学出版社, 2008: 94-112.
	GE F. Modern Ecology Beijing: Science Press, 2008:94-112. (in Chinese)
[10]	银晓瑞, 梁存柱, 王立新, 王炜, 刘钟龄, 刘小平. 内蒙古典型草原不同恢复演替阶段植物养分化学计量学. 植物生态学报, 2010,34(1):39-47.
	YIN X R, LIANG C Z, WANG L X, WANG W, LIU Z L, LIU X P. Ecological stoichiometry of plant nutrients at different restoration succession stages in typical steppe of Inner Mongolia, China. Chinese Journal of Plant Ecology, 2010,34(1):39-47.
[11]	LAVOREL S, GRIGULIS K, LAMARQUE P, COLACE M P, GARDEN D, GIREL J, PELLET G, DOUZET R. Using plant functional traits to understand the landscape distribution of multiple ecosystem services. Journal of Ecology, 2011,99(1):135-147.
[12]	祝廷成. 羊草生物生态学. 吉林: 吉林科学技术出版社, 2004: 177-191.
	ZHU T C. Yang-cao Biological Ecology. Jilin: Jilin Science and Technology Press, 2004: 177-191. (in Chinese)
[13]	詹书侠, 郑淑霞, 王扬, 白永飞. 羊草的地上-地下功能性状对氮磷施肥梯度的响应及关联. 植物生态学报, 2016,40(1):36-47.
	ZHAN S X, ZHENG S X, WANG Y, BAI Y F. Response and correlation of above-and below-ground functional traits of Leymus chinensis to nitrogen and phosphorus additions. Chinese Journal of Plant Ecology, 2016,40(1):36-47. (in Chinese)
[14]	张璐, 白天晓, 郝匕台, 邢小青, 郭之伟, 宝音陶格涛. 季节性放牧对羊草功能性状的影响. 中国草地学报, 2017,39(5):96-101.
	ZHANG L, BAI T X, HAO B T, XING X Q, GUO Z W, BAIYIN T G T. Effect of seasonal grazing on plant functional traits of Leymus chinensis. Chinese Journal of Grassland. 2017,39(5):96-101. (in Chinese)
[15]	李琪, 宋彦涛, 霍光伟, 道日娜, 赵杨, 乌云娜. 羊草功能性状对放牧强度的响应. 安徽农业科学, 2016,44(11):75-78.
	LI Q, SONG Y T, HUO G W, DAO R N, ZHAO Y, WU Y N. Response of functional traits of Leymus chinensis to grazing intensity. Journal of Anhui Agricultural Sciences, 2016,44(11):75-78. (in Chinese)
[16]	王炜, 梁存柱, 刘钟龄, 郝敦元. 草原群落退化与恢复演替中的植物个体行为分析. 植物生态学报, 2000,24(3):268-274.
	WANG W, LIANG C Z, LIU Z L, HAO D Y. Analysis of the plant individual behaviour during the degradation and restoring succession in steppe community. Chinese Journal of Plant Ecology, 2000,24(3):268-274. (in Chinese)
[17]	李西良, 侯向阳, 吴新宏, 萨茹拉, 纪磊, 陈海军, 刘志英, 丁勇. 草甸草原羊草茎叶功能性状对长期过度放牧的可塑性响应. 植物生态学报, 2014,38(5):440-451.
	LI X L, HOU X Y, WU X H, SA R L, JI L, CHEN H J, LIU Z Y, DING Y. Plastic responses of stem and leaf functional traits in Leymus chinensis to long-term grazing in a meadow steppe. Chinese Journal of Plant Ecology, 2014,38(5):440-451. (in Chinese)
[18]	ZHENG S X, LAN Z C, LI W H, SHAO R X, SHAN Y M, WAN H W, TAUBE F, BAI Y F. Differential responses of plant functional trait to grazing between two contrasting dominant C₃ and C₄ species in a typical steppe of Inner Mongolia, China. Plant and Soil, 2011,340(1/2):141-155.
[19]	闫瑞瑞, 辛晓平, 张保辉, 闫玉春, 杨桂霞. 肉牛放牧梯度对呼伦贝尔草甸草原植物群落特征的影响. 中国草地学报, 2010,32(3):62-67.
	YAN R R, XIN X P, ZHANG B H, YAN Y C, YANG G X. Influence of cattle grazing gradient on plant community characteristics in Hulunber meadow steppe. Chinese Journal of Grassland, 2010,32(3):62-67. (in Chinese)
[20]	蒙旭辉, 李向林, 辛晓平, 周尧治. 不同放牧强度下羊草草甸草原群落特征及多样性分析. 草地学报, 2009,17(2):239-244.
	MENG X H, LI X L, XIN X P, ZHOU Y Z. Study on community characteristics and α diversity under different grazing intensity on Leymus chinensis(Trin.)Tzvel. meadow steppe of Hulunbeier Acta Agrestia Sinica, 2009,17(2):239-244. (in Chinese)
[21]	LI W H, XU F W, ZHENG S X, TAUBE F, BAI Y F. Patterns and thresholds of grazing-induced changes in community structure and ecosystem functioning: species-level responses and the critical role of species traits. Journal of Applied Ecology, 2017,54(3):963-975.
[22]	王明君. 不同放牧强度对羊草草甸草原生态系统健康的影响研究[D]. 呼和浩特: 内蒙古农业大学, 2008.
	WANG M J. Effects of different grazing intensities on grassland ecosystem health of Leymus chinensis meadow steppe[D]. Hohhot: Inner Mongolia Agricultural University, 2008. (in Chinese)
[23]	于丰源, 秦洁, 靳宇曦, 韩梦琪, 王舒新, 康静, 韩国栋. 放牧强度对草甸草原植物群落特征的影响. 草原与草业, 2018,30(2):31-37.
	YU F Y, QIN J, JIN Y X, HAN M Q, WANG S X, KANG J, HAN G D. Effect of grazing intensity on vegetation plant community characteristic of meadow steppe. Grassland and Prataculture, 2018,30(2):31-37. (in Chinese)
[24]	韦兰英, 上官周平. 黄土高原不同退耕年限坡地植物比叶面积与养分含量的关系. 生态学报, 2008,28(6):2526-2535.
	WEI L Y, SHANGGUAN Z P. Relation between specific leaf areas and leaf nutritent contents of plants growing on slopelands with different farming abandoned periods in the Loess Plateau. Acta Ecologica Sinica, 2008,28(6):2526-2535. (in Chinese)
[25]	牛得草, 董晓玉, 傅华. 长芒草不同季节碳氮磷生态化学计量特征. 草业科学, 2011,28(6):915-920.
	NIU D C, DONG X Y, FU H. Seasonal dynamics of carbon, nitrogen and phosphorus stoichiometry in Stipa bungeana. Pratacultural Science, 2011,28(6):915-920. (in Chinese)
[26]	李丹, 康萨如拉, 赵梦颖, 张庆, 任海娟, 任婧, 周俊梅, 王珍, 吴仁吉, 牛建明. 内蒙古羊草草原不同退化阶段土壤养分与植物功能性状的关系. 植物生态学报, 2016,40(10):991-1002.
	LI D, KANGSA R L, ZHAO M Y, ZHANG Q, REN H J, REN J, ZHOU J M, WANG Z, WU R J, NIU J M. Relationships between soil nutrients and plant functional traits in different degradation stages of Leymus chinensis steppe in Nei Mongol, China. Chinese Journal of Plant Ecology, 2016,40(10):991-1002. (in Chinese)
[27]	BAI Y F, HAN X G, WU J G, CHEN Z Z, LI L H. Ecosystem stability and compensatory effects in the Inner Mongolia grassland. Nature, 2004,431(7005):181-184.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 0

No Suggested Reading articles found!

	比叶面积 Specific leaf area	氮 Nitrogen	碳 Carbon	碳氮比 Carbon to nitrogen ratio	叶面积 Leaf area	单片叶重 Leaf mass	叶长 Leaf length	叶平均宽度 Leaf average width	叶最大宽度 Leaf maximum width	株高 Plant height	茎重 Stem weight	叶重 Leaf weight	茎叶比 Stem to leaf ratio	单株重 Plant weight
比叶面积 Specific leaf area	1.000	0.922**	-0.768**	-0.932**	-0.723**	-0.828**	-0.720**	-0.773**	-0.730**	-0.749**	-0.769**	-0.792**	-0.630*	-0.788**
氮 Nitrogen		1.000	-0.777**	-0.987**	-0.802**	-0.855**	-0.791**	-0.792**	-0.762**	-0.778**	-0.828**	-0.838**	-0.748**	-0.840**
碳 Carbon			1.000	0.800**	0.559	0.641*	0.627*	0.53	0.55	0.56	0.543	0.525	0.581*	0.537
碳氮比 Carbon to nitrogen ratio				1.000	0.857**	0.913**	0.841**	0.839**	0.806**	0.820**	0.865**	0.881**	0.734**	0.880**
叶面积 Leaf area					1.000	0.980**	0.947**	0.940**	0.907**	0.827**	0.904**	0.951**	0.603*	0.937**
单片叶重 Leaf mass						1.000	0.934**	0.944**	0.900**	0.861**	0.923**	0.968**	0.629*	0.955**
叶长 Leaf length							1.000	0.890**	0.890**	0.824**	0.904**	0.899**	0.722**	0.908**
叶平均宽度 Leaf average width								1.000	0.983**	0.810**	0.847**	0.897**	0.581*	0.882**
叶最大宽度 Leaf maximum width									1.000	0.784**	0.794**	0.826**	0.588*	0.818**
株高 Plant height										1.000	0.946**	0.885**	0.839**	0.919**
茎重 Stem weight											1.000	0.970**	0.829**	0.991**
叶重 Leaf weight												1.000	0.692*	0.994**
茎叶比 Stem to leaf ratio													1.000	0.759**
单株重 Plant weight														1.000

	典型相关系数 Canonical correlations coefficient	显著性 Sig.
典型变量（Ⅰ） Canonical variable (Ⅰ)	0.993	0.001
典型变量（Ⅱ） Canonical variable (Ⅱ)	0.909	0.109
典型变量（Ⅲ） Canonical variable (Ⅲ)	0.759	0.271

性状 Character (U)	典型变量Canonical variable (Ⅰ)	r
性状 Character (U)	u	r
X1	-2.003	0.899
X2	3.986	0.957
X3	0.455	-0.837
X4	-0.27	0.871
X5	-1.714	0.864
X6	1.313	0.827
性状 Character (V)	典型变量Canonical variable (Ⅰ)	r
性状 Character (V)	v	r
Y1	2.748	-0.814
Y2	-0.049	0.735
Y3	3.649	0.897

Effects of Grazing Intensity on Functional Traits of Leymus chinensis in Meadow Steppe

RichHTML

PDF

Abstract

Cite this article

share this article

Figures/Tables 10

References 27

Related Articles 12

Metrics

Comments

Recommended 0

[1]	WANG Miao,ZHANG Yu,LI RuiQiang,XIN XiaoPing,ZHU XiaoYu,CAO Juan,ZHOU ZhongYi,YAN RuiRui. Effects of Grazing Disturbance on the Stoichiometry of Nitrogen and Phosphorus in Plant Organs of Leymus chinensis Meadow Steppe [J]. Scientia Agricultura Sinica, 2022, 55(7): 1371-1384.
[2]	GUO FengHui,DING Yong,JI Lei,LI XianSong,LI XiLiang,HOU XiangYang. The Response of Leymus chinensis Cloned Offspring to Mowing [J]. Scientia Agricultura Sinica, 2022, 55(11): 2257-2264.
[3]	YAN RuiRui, GAO Wa, SHEN BeiBei, ZHANG Yu, WANG Miao, ZHU XiaoYu, XIN XiaoPing. Index System for Quantitative Evaluation of Pasture Degradation in Meadow Grassland of Inner Mongolia [J]. Scientia Agricultura Sinica, 2021, 54(15): 3343-3354.
[4]	YANG YunFei,XIN XiaoPing,LI JianDong. A Discussion on the Diffusion Pathway of Leymus Chinensis in the Natural Grassland of China Based on Differentiation in the Phenotypes and Genotypes [J]. Scientia Agricultura Sinica, 2020, 53(13): 2541-2549.
[5]	ZHANG Yu, HOU LuLu, YAN RuiRui, XIN XiaoPing. Effects of Grazing Intensity on Plant Community Characteristics and Nutrient Quality of Herbage in a Meadow Steppe [J]. Scientia Agricultura Sinica, 2020, 53(13): 2550-2561.
[6]	YAN RuiRui,ZHANG Yu,XIN XiaoPing,WEI ZhiJun,Wuren qiqige,GUO MeiLan. Effects of Mowing Disturbance on Grassland Plant Functional Groups and Diversity in Leymus chinensis Meadow Steppe [J]. Scientia Agricultura Sinica, 2020, 53(13): 2573-2583.
[7]	WANG KaiLi,YANG HeLong,XIAO Hong,SUN Wei,RONG YuPing. Effects of Nitrogen Application and Clipping Height on Vegetation Productivity and Plant Community Composition of Haying Meadow Steppe [J]. Scientia Agricultura Sinica, 2020, 53(13): 2625-2636.
[8]	WAN DongLi,HOU XiangYang,DING Yong,REN WeiBo,WANG Kai,LI XiLiang,WAN YongQing. Response and the Expression of Pi-Responsive Genes in Leymus chinensis Under Inorganic Phosphate Treatment [J]. Scientia Agricultura Sinica, 2019, 52(23): 4215-4227.
[9]	WU Qi, WU Peng-fei, WANG Qun, WEN Yong-li, GAO Yan-mei, ZHANG Rong-zhi, LONG Wei. Effects of Grazing Intensity on the Community Structure and Diversity of Different Soil Fauna in Alpine Meadow [J]. Scientia Agricultura Sinica, 2016, 49(9): 1826-1834.
[10]	YANG Jin-zhong, LIANG Shu-min, LI Na-na, LIU Yong-hua, HAO Jian-ping. Functional Traits of Maize Stems as Supporting Organs and Their Plasticity [J]. Scientia Agricultura Sinica, 2016, 49(1): 69-79.
[11]	WANG Hong-Mei, SUN Qi-Zhong, HUA Mei. Studies on Native Grass Silage of Different Plant Communities in Meadow Steppe [J]. Scientia Agricultura Sinica, 2013, 46(12): 2566-2575.
[12]	,,,,. A Study of the Effects of Different Grazing Intensities on Soil Physical Properties of Grassland and Forest Floor -- For Example Hilly and Gully Regions on the Loess Plateau [J]. Scientia Agricultura Sinica, 2006, 39(7): 1501-1506 .