放牧强度对羊草草甸草原植物器官及群落氮磷化学计量的影响

doi:10.3864/j.issn.0578-1752.2022.07.009

Abstract

Abstract:

【Objective】Taking above-ground communities, stems and leaves as research objects, the effects of different grazing intensities on the contents of carbon (C), nitrogen (N) and phosphorus (P) elements and stoichiometric characteristics of plant components and plant communities were investigated, which provided a scientific basis for in-depth analysis of grassland ecosystem degradation process under grazing disturbance and promotion of adaptive management of grassland grazing. 【Method】Based on the long-term controlled grazing test platform of Leymus chinensis meadow grassland in Hulunbuir, the plant communities and plant samples of different components were collected. The contents of C, N and P were determined by elemental analysis method, and then the changes of C, N and P contents and the measurement ratio under different grazing intensities were analyzed. 【Result】With the increase of grazing intensity, the C content of plant stem, leaf and community showed a significant linear decrease, and the C content of heavy to extremely heavy grazing was significantly lower than that of no grazing (P<0.05). The N and P contents of the community were linearly increased, and the heavy to extremely grazing was significantly higher than that of no grazing (P<0.05). The stem-leaf ratio of C content was the lowest in moderate grazing (G0.46), while the stem-leaf ratio of N content was the highest in heavy grazing (G0.69), and the highest in P content (G0.34). The coefficients of variation of C content and N/P ratio in different plant organs were small, but the coefficients of variation of N and P contents were large. The variation coefficients of C content and N/P ratio of different components ranged from 4.01% to 5.74% and 2.84% to 8.54%, respectively. The variation coefficients of N and P contents of plants ranged from 11.47% to 14.96% and 11.13% to 22.88%, respectively, and the variation coefficients of C/N and C/P ratios ranged from 10.64% to 16.00% and 8.88% to 13.57%, respectively; among them, the coefficient of variation of the N/P ratio of plant leaves is the smallest, and the coefficient of variation of plant stem P content is the largest. The N/P ratio of leaves was between 14 and 16 under light grazing G0.34 and extremely heavy grazing G0.92, which was restricted by both N and P elements; while the other components were all lower than 14 under different grazing intensities, which was restricted by N. There was a significant negative correlation between grazing intensity and C content and C/N ratio of stem, leaf and community, and N/P ratio of stem and community, whilst they were significantly positively related to N content of stem, leaf and community, P content of plant leaf and community, and the N/P ratio of plant stem. The soil moisture was significantly positively correlated with the C content of plant leaves and community, the C/N ratio of stem, leaf and community, and the C/P ratio of stem and community, however, which were significantly negatively correlated the N content of stem, leaf and community and the P content of leaf and community. 【Conclusion】Grazing caused significant changes in plant C, N, P content, ecological stoichiometric ratio, and total community C, N, and P content. Overgrazing not only decreased the C content, C/N ratio and C/P ratio of plant stem, leaf and community, but also reduced the total C, N, and P content of the community, increased the N and P content of plant stem, leaf and community, and N/P ratio of plant stem, leaf and community. Moderate grazing decreased the C/N ratio of stem and leaf, and increased the C/P ratio and N/P ratio of stem and leaf, which was beneficial to promote the sustainable and stable development of grassland ecological functions.

Key words: meadow steppe, grazing intensity, carbon, nitrogen and phosphorus content, ecological stoichiometry characteristics, stem and leaf, community, Hulunbuir

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.

Figures/Tables 9

Fig. 1

Table 1

Table 2

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Table 3

Fig. 6

References 41

[1]	ELDRIDGE D J, DELGADO-BAQUERIZO M, TRAVERS S K, VAL J, OLIVER I, HAMONTS K, SINGH B K. Competition drives the response of soil microbial diversity to increased grazing by vertebrate herbivores. Ecology, 2017, 98(7):1922-1931. doi: 10.1002/ecy.1879
[2]	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)
[3]	许雪贇, 曹建军, 杨淋, 杨书荣, 龚毅帆, 李梦天. 放牧与围封对青藏高原草地土壤和植物叶片化学计量学特征的影响. 生态学杂志, 2018, 37(5):1349-1355.
	XU X Y, CAO J J, YANG L, YANG S R, GONG Y F, LI M T. Effects of grazing and enclosure on foliar and soil stoichiometry of grassland on the Qinghai-Tibetan Plateau. Chinese Journal of Ecology, 2018, 37(5):1349-1355. (in Chinese)
[4]	郑伟. 封育对伊犁绢蒿种群营养元素分配格局及贮量的影响. 草业科学, 2012, 29(10):1503-1511.
	ZHENG W. Effects of enclosure on storage and allocation of carbon and nutrient elements in Seriphidium transiliense population. Pratacultural Science, 2012, 29(10):1503-1511. (in Chinese)
[5]	丁小慧, 宫立, 王东波, 伍星, 刘国华. 放牧对呼伦贝尔草地植物和土壤生态化学计量学特征的影响. 生态学报, 2012, 32(15):4722-4730. doi: 10.5846/stxb201104200523
	DING X H, GONG L, WANG D B, WU X, LIU G H. Grazing effects on eco-stoichiometry of plant and soil in Hulunbeir, Inner Mogolia. Acta Ecologica Sinica, 2012, 32(15):4722-4730. (in Chinese) doi: 10.5846/stxb201104200523
[6]	FRANK D A. Ungulate and topographic control of nitrogen: phosphorus stoichiometry in a temperate grassland; soils, plants and mineralization rates. Oikos, 2008, 117(4):591-601. doi: 10.1111/j.0030-1299.2008.16220.x
[7]	HAN W X, FANG J Y, GUO D L, ZHANG Y. Leaf nitrogen and phosphorus stoichiometry across 753 terrestrial plant species in China. New Phytologist, 2005, 168(2):377-385. doi: 10.1111/j.1469-8137.2005.01530.x
[8]	李香真, 陈佐忠. 不同放牧率对草原植物与土壤C、N、P含量的影响. 草地学报, 1998, 6(2):90-98.
	LI X Z, CHEN Z Z. Influences of stocking rates on C, N, P contents in plant-soil system. Acta Agrestia Sinica, 1998, 6(2):90-98. (in Chinese)
[9]	张婷, 翁月, 姚凤娇, 史印涛, 崔国文, 胡国富. 放牧强度对草甸植物小叶章及土壤化学计量比的影响. 草业学报, 2014, 23(2):20-28.
	ZHANG T, WENG Y E, YAO F J, SHI Y T, CUI G W, HU G F. Effect of grazing intensity on ecological stoichiometry of Deyeuxia angustifolia and meadow soil. Acta Prataculturae Sinica, 2014, 23(2):20-28. (in Chinese)
[10]	李香真, 邢雪荣, 陈佐忠. 不同放牧率对旱黄梅衣生物量和化学元素组成的影响. 应用生态学报, 2001, 12(3):369-373.
	LI X Z, XING X R, CHEN Z Z. Effect of grazing rate on biomass and element composition of Xanthoparmelia camtschadalis. Chinese Journal of Applied Ecology, 2001, 12(3):369-373. (in Chinese)
[11]	BARDGETT R D, WARDLE D A. Herbivore-mediated linkages between aboveground and belowground communities. Ecology, 2003, 84(9):2258-2268. doi: 10.1890/02-0274
[12]	张宇, 侯路路, 闫瑞瑞, 辛晓平. 放牧强度对草甸草原植物群落特征及营养品质的影响. 中国农业科学, 2020, 53(13):2550-2561.
	ZHANG Y, HOU L L, YAN R R, XIN X P. Effects of grazing intensity on plant community characteristics and nutrient quality of herbage in a meadow steppe. Scientia Agricultura Sinica, 2020, 53(13):2550-2561. (in Chinese)
[13]	鲍士旦. 土壤农化分析. 3版. 北京: 中国农业出版社, 2000.
	BAO S D. Soil and Agricultural Chemistry Analysis.3rd ed. Beijing: Chinese Agriculture Press, 2000. (in Chinese)
[14]	李红林, 贡璐, 洪毅. 克里雅绿洲旱生芦苇根茎叶C、N、P化学计量特征的季节变化. 生态学报, 2016, 36(20):6547-6555.
	LI H L, GONG L, HONG Y. Seasonal variations in C, N, and P stoichiometry of roots, stems, and leaves of Phragmites australis in the Keriya Oasis, Xinjiang, China. Acta Ecologica Sinica, 2016, 36(20):6547-6555. (in Chinese)
[15]	贺合亮, 阳小成, 李丹丹, 尹春英, 黎云祥, 周国英, 张林, 刘庆. 青藏高原东部窄叶鲜卑花碳、氮、磷化学计量特征. 植物生态学报, 2017(1):126-135. doi: 10.17521/cjpe.2016.0031
	HE H L, YANG X C, LI D D, YIN C Y, LI Y X, ZHOU G Y, ZHANG L, LIU Q. Stoichiometric characteristics of carbon, nitrogen and phosphorus of Sibiraea angustata shrub on the eastern Qinghai- Xizang Plateau. Chinese Journal of Plant Ecology, 2017(1):126-135. (in Chinese) doi: 10.17521/cjpe.2016.0031
[16]	HE J S, FANG J Y, WANG Z H, GUO D L, FLYNN D F B, GENG Z, Stoichiometry and large-scale patterns of leaf carbon and nitrogen in the grassland biomes of China. Oecologia, 2006, 149(1):115-122. doi: 10.1007/s00442-006-0425-0
[17]	韩文轩, 吴漪, 汤璐瑛, 陈雅涵, 李利平, 贺金生, 方精云. 北京及周边地区植物叶的碳氮磷元素计量特征. 北京大学学报(自然科学版), 2009, 45(5):855-860.
	HAN W X, WU Y, TANG L Y, CHEN Y H, LI L P, HE J S, FANG J Y. Leaf carbon, nitrogen and phosphorus stoichiometry across plant species in Beijing and its periphery. Acta Scientiarum Naturalium Universitatis Pekinensis, 2009, 45(5):855-860. (in Chinese)
[18]	任书杰, 于贵瑞, 陶波, 王绍强. 中国东部南北样带654种植物叶片氮和磷的化学计量学特征研究. 环境科学, 2007, 28(12):2665-2673.
	REN S J, YU G R, TAO B, WANG S Q. Leaf nitrogen and phosphorus stoichiometry across 654 terrestrial plant species in NSTEC. Environmental Science, 2007, 28(12):2665-2673. (in Chinese)
[19]	范月君, 侯向阳, 石红霄, 师尚礼. 封育与放牧对三江源区高寒草甸植物和土壤碳储量的影响. 草原与草坪, 2012, 32(5):41-46, 52.
	FAN Y J, HOU X Y, SHI H X, SHI S L. The response of carbon reserves of plants and soils to different grassland managements on alpine meadow of three headwater source regions. Grassland and Turf, 2012, 32(5):41-46, 52. (in Chinese)
[20]	鄢燕, 马星星, 鲁旭阳. 人为干扰对藏北高寒草原群落生物量及其碳氮磷含量特征的影响. 山地学报, 2014, 32(4):460-466.
	YAN Y, MA X X, LU X Y. Effect of human disturbance on plant biomass and CNP contents of the alpine steppe in northern Tibet. Mountain Research, 2014, 32(4):460-466. (in Chinese)
[21]	LI X L, LIU Z Y, REN W B, DING Y, JI L, GUO F H, HOU X Y. Linking nutrient strategies with plant size along a grazing gradient: Evidence from Leymus chinensis in a natural pasture. Journal of Integrative Agriculture, 2016, 15(5):1132-1144. doi: 10.1016/S2095-3119(15)61171-6
[22]	孙宗玖, 李培英. 放牧对伊犁绢蒿叶片碳氮磷化学计量特征的影响. 中国草学会第九次全国会员代表大会暨学术讨论会论文集. 2016: 7.
	SUN Z J, LI P Y. Effects of grazing on carbon, nitrogen and phosphorus stoichiometry in leaves of Seriphidium iliense//The Ninth National Member Congress of China Grass Society and Academic Symposium Proceedings. China Grass Society, 2016: 7. (in Chinese)
[23]	翟夏杰, 黄顶, 王堃. 围封与放牧对典型草原植被和土壤的影响. 中国草地学报, 2015, 37(6):73-78.
	ZHAI X J, HUANG D, WANG K. Effects of fencing and grazing on vegetation and soil in typical grassland. Chinese Journal of Grassland, 2015, 37(6):73-78. (in Chinese)
[24]	仲延凯, 孙维, 孙卫国, 包青海. 割草对典型草原植物营养元素贮量及分配的影响 Ⅳ.土壤—植物营养元素含量的比较. 干旱区资源与环境, 2000, 14(1):55-63.
	ZHONG Y K, SUN W, SUN W G, BAO Q H. Influence of mowing on storing amount and distribution of nutrient elements in typical steppe Ⅳ A comparative study on nutrient element contents of soil and plant. Journal of Arid Land Resources and Environment, 2000, 14(1):55-63. (in Chinese)
[25]	BAI Y F, WU J G, CLARK C M, PAN Q M, ZHANG L X, CHEN S P, WANG Q B, HAN X G. Grazing alters ecosystem functioning and C: N:P stoichiometry of grasslands along a regional precipitation gradient. Journal of Applied Ecology, 2012, 49(6):1204-1215. doi: 10.1111/j.1365-2664.2012.02205.x
[26]	宋智芳, 安沙舟, 孙宗玖. 放牧地伊犁绢蒿营养元素分配特点. 草业科学, 2014, 31(1):132-138.
	SONG Z F, AN S Z, SUN Z J. Characteristics of nutrition allocation of Seriphidium transiliense under grazing condition. Pratacultural Science, 2014, 31(1):132-138. (in Chinese)
[27]	CUI X Y, WANG Y F, NIU H S, WU J, WANG S P, SCHNUG E, ROGASIK J, FLECKENSTEIN J, TANG Y H. Effect of long-term grazing on soil organic carbon content in semiarid steppes in Inner Mongolia. Ecological Research, 2005, 20(5):519-527. doi: 10.1007/s11284-005-0063-8
[28]	JIA B R, ZHOU G S, WANG F Y, WANG Y H, WENG E S. Effects of grazing on soil respiration of Leymus chinensis steppe. Climatic Change, 2007, 82(1):211-223. doi: 10.1007/s10584-006-9136-0
[29]	黄小波, 刘万德, 苏建荣, 李帅锋, 郎学东. 云南普洱季风常绿阔叶林152种木本植物叶片C、N、P化学计量特征. 生态学杂志, 2016, 35(3):567-575.
	HUANG X B, LIU W D, SU J R, LI S F, LANG X D. Stoichiometry of leaf C, N and P across 152 woody species of a monsoon broad-leaved evergreen forest in Pu'er, Yunnan Province. Chinese Journal of Ecology, 2016, 35(3):567-575. (in Chinese)
[30]	白永飞, 黄建辉, 郑淑霞, 潘庆民, 张丽霞, 周华坤, 徐海量, 李玉霖, 马健. 草地和荒漠生态系统服务功能的形成与调控机制. 植物生态学报, 2014, 38(2):93-102. doi: 10.3724/SP.J.1258.2014.00009
	BAI Y F, HUANG J H, ZHENG S X, PAN Q M, ZHANG L X, ZHOU H K, XU H L, LI Y L, MA J. Drivers and regulating mechanisms of grassland and desert ecosystem services. Chinese Journal of Plant Ecology, 2014, 38(2):93-102. (in Chinese) doi: 10.3724/SP.J.1258.2014.00009
[31]	丁莉君, 卫智军, 张爽, 刘佳, 吕世杰. 放牧强度季节调控对荒漠草原土壤和植物养分的影响. 草原与草业, 2019, 31(1):53-59.
	DING L J, WEI Z J, ZHANG S, LIU J, LÜ S J. Effects of seasonal regulation of grazing intensity on soil and plant nutrients in desert steppe. Grassland and Prataculture, 2019, 31(1):53-59. (in Chinese)
[32]	李从娟, 雷加强, 徐新文, 唐清亮, 高培, 王永东. 塔克拉玛干沙漠腹地人工植被及土壤CNP的化学计量特征. 生态学报, 2013, 33(18):5760-5767. doi: 10.5846/stxb201304300872
	LI C J, LEI J Q, XU X W, TANG Q L, GAO P, WANG Y D. The stoichiometric characteristics of C, N, P for artificial plants and soil in the hinterland of Taklimakan Desert. Acta Ecologica Sinica, 2013, 33(18):5760-5767. (in Chinese) doi: 10.5846/stxb201304300872
[33]	MAMOLOS A P, VASILIKOS C V, VERESOGLOU D S. Vegetation in contrasting soil water sites of upland herbaceous grasslands and N: P ratios as indicators of nutrient limitation. Plant and Soil, 2005, 270(1):355-369. doi: 10.1007/s11104-004-1793-z
[34]	吴统贵, 吴明, 刘丽, 萧江华. 杭州湾滨海湿地3种草本植物叶片N、P化学计量学的季节变化. 植物生态学报, 2010, 34(1):23-28. doi: 10.3773/j.issn.1005-264x.2010.01.005
	WU T G, WU M, LIU L, XIAO J H. Seasonal variations of leaf nitrogen and phosphorus stoichiometry of three herbaceous species in Hangzhou Bay coastal wetlands, China. Chinese Journal of Plant Ecology, 2010, 34(1):23-28. (in Chinese) doi: 10.3773/j.issn.1005-264x.2010.01.005
[35]	KOERSELMAN W, MEULEMAN A F M. The vegetation N: P ratio: A new tool to detect the nature of nutrient limitation. The Journal of Applied Ecology, 1996, 33(6):1441. doi: 10.2307/2404783
[36]	HE J S, WANG L A, FLYNN D F B, WANG X P, MA W H, FANG J Y. Leaf nitrogen: phosphorus stoichiometry across Chinese grassland biomes. Oecologia, 2008, 155(2):301-310. doi: 10.1007/s00442-007-0912-y
[37]	董晓玉. 放牧与围封对黄土高原典型草原植物碳、氮、磷生态计量特征及其贮量的影响[D]. 兰州: 兰州大学, 2009.
	DONG X Y. The effect of grazing and fencing on ecological stoichiometry of carbon, nitrogen, phosphorus and their storages in steppe grasslands of loess plateau[D]. Lanzhou: Lanzhou University, 2009. (in Chinese)
[38]	董晓玉, 傅华, 李旭东, 牛得草, 郭丁, 李晓东. 放牧与围封对黄土高原典型草原植物生物量及其碳氮磷贮量的影响. 草业学报, 2010, 19(2):175-182.
	DONG X Y, FU H, LI X D, NIU D C, GUO D, LI X D. Effects on plant biomass and CNP contents of plants in grazed and fenced steppe grasslands of the Loess Plateau. Acta Prataculturae Sinica, 2010, 19(2):175-182. (in Chinese)
[39]	ELSER J J, STERNER R W, GOROKHOVA E, FAGAN W F, MARKOW T A, COTNER J B, HARRISON J F, HOBBIE S E, ODELL G M, WEIDER L W. Biological stoichiometry from genes to ecosystems. Ecology Letters, 2000, 3(6):540-550. doi: 10.1111/j.1461-0248.2000.00185.x
[40]	HEDIN L O. Global organization of terrestrial plant-nutrient interactions. PNAS, 2004, 101(30):10849-10850. doi: 10.1073/pnas.0404222101
[41]	侯路路, 闫瑞瑞, 张宇, 辛晓平. 放牧强度对草甸草原羊草功能性状的影响. 中国农业科学, 2020, 53(13):2562-2572.
	HOU L L, YAN R R, ZHANG Y, XIN X P. Effects of grazing intensity on functional traits of Leymus chinensis in meadow steppe. Scientia Agricultura Sinica, 2020, 53(13):2562-2572. (in Chinese)

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 0

No Suggested Reading articles found!

放牧强度 Grazing intensity (Cow.Au·hm^-2 )	土壤有机碳 Soil organic carbon (g·kg^-1)	土壤全氮 Soil total nitrogen (g·kg^-1)	土壤全磷 Soil total phosphorus (g·kg^-1)	土壤水分 Soil moisture (%)	土壤温度 Soil temperature (℃)
G0.00	40.78±0.22ab	3.66±0.02ab	0.58±0.02a	32.47±0.76a	21.97±1.85a
G0.23	38.35±2.15ab	3.42±0.13b	0.55±0.05a	30.60±1.46ab	23.36±2.91a
G0.34	40.49±0.10ab	3.93±0.25a	0.56±0.02a	31.06±0.73ab	23.14±2.65a
G0.46	41.55±0.66a	3.56±0.21ab	0.59±0.03a	31.14±0.43ab	23.12±2.92a
G0.69	37.71±0.50b	3.42±0.07b	0.58±0.03a	29.04±1.01ab	23.21±3.03a
G0.92	39.06±0.35ab	3.58±0.01ab	0.59±0.06a	27.78±2.18b	23.12±3.01a

日期 Date	参数 Parameter	器官 Organ	平均数 Mean	最小值 Minimum	最大值 Maximum	变异系数 Coefficient of variation (%)
2019	C (g·kg^-1)	茎Stem	369.72	331.84	407.31	5.99
		叶Leave	376.84	357.05	401.41	2.81
		群落Community	384.14	360.05	404.52	3.41
	N (g·kg^-1)	茎Stem	14.66	10.24	17.94	14.50
		叶Leave	20.40	16.93	23.75	7.78
		群落Community	20.09	16.85	25.93	12.70
	P (g·kg^-1)	茎Stem	1.40	1.05	1.72	13.47
		叶Leave	1.60	1.20	1.89	10.54
		群落Community	1.63	1.26	1.97	12.81
2020	C (g·kg^-1)	茎Stem	389.51	342.75	457.27	7.86
		叶Leave	361.90	326.62	408.33	5.64
		群落Community	373.33	330.63	424.29	6.13
	N (g·kg^-1)	茎Stem	14.51	10.85	20.70	17.60
		叶Leave	23.00	17.42	44.51	26.31
		群落Community	19.70	16.87	23.37	11.97
	P (g·kg^-1)	茎Stem	1.46	1.02	3.57	37.38
		叶Leave	1.60	0.92	2.09	17.25
		群落Community	1.44	0.81	1.82	15.03
两年均值 Two years mean	C (g·kg^-1)	茎Stem	379.62	345.14	425.42	5.74
		叶Leave	369.37	350.74	393.39	3.09
		群落Community	378.73	358.97	402.68	4.01
	N (g·kg^-1)	茎Stem	14.59	11.59	19.32	14.11
		叶Leave	21.70	18.56	32.68	14.96
		群落Community	19.89	16.93	24.65	11.47
	P (g·kg^-1)	茎Stem	1.43	1.12	2.64	22.88
		叶Leave	1.60	1.20	1.99	11.13
		群落Community	1.54	1.04	1.83	12.57

		C (g·kg^-1)	N (g·kg^-1)	P (g·kg^-1)	C﹕N	C﹕P	N﹕P
放牧强度 Grazing intensity	茎Stem	-0.656**	0.825**	0.304	-0.876**	-0.598**	0.505*
	叶Leave	-0.737**	0.706**	0.535*	-0.839**	-0.449	0.428
	群落Community	-0.753**	0.861**	0.840**	-0.900**	-0.752**	0.172
土壤温度 Soil temperature (℃)	茎Stem	0.19	0.205	0.574*	-0.146	-0.252	-0.143
	叶Leave	-0.467	-0.056	0.051	-0.112	-0.204	-0.135
	群落Community	0.007	0.184	0.187	-0.133	-0.421	-0.377
土壤水分 Soil moisture (%)	茎Stem	0.364	-0.670**	-0.402	0.671**	0.619**	-0.17
	叶Leave	0.674**	-0.558*	-0.474*	0.686**	0.414	-0.283
	群落Community	0.470*	-0.644**	-0.720**	0.611**	0.751**	0.182
土壤碳含量 Soil carbon content (g·kg^-1)	茎Stem	0.289	-0.656**	-0.504*	0.631**	0.631**	-0.105
	叶Leave	0.639**	-0.556*	-0.409	0.668**	0.416	-0.269
	群落Community	0.471*	-0.583*	-0.781**	0.564*	0.706**	0.196
土壤氮含量 Soil nitrogen content (g·kg^-1)	茎Stem	0.401	-0.636**	-0.291	0.658**	0.567*	-0.212
	叶Leave	0.657**	-0.522*	-0.495*	0.654**	0.384	-0.275
	群落Community	0.438	-0.650**	-0.622**	0.608**	0.738**	0.158
土壤磷含量 Soil phosphorus content (g·kg^-1)	茎Stem	-0.316	0.392	0.314	-0.348	-0.247	0.239
	叶Leave	-0.145	0.183	0.169	-0.051	0.051	0.258
	群落Community	-0.104	0.005	0.046	-0.049	0.088	0.146

Effects of Grazing Disturbance on the Stoichiometry of Nitrogen and Phosphorus in Plant Organs of Leymus chinensis Meadow Steppe

RichHTML

PDF

Abstract

Cite this article

share this article

Figures/Tables 9

References 41

Related Articles 15

Metrics

Comments

Recommended 0

[1]	WANG Jing, LI Gang, CAI XiaoYa, PANG LuYao, HUANG QingYing, LIN BaoYi, KONG HaiMin, HAO Yue, REN HaiYing. Screening of Biocontrol Bacillus Strains Against Bayberry Twig Blight Disease and Investigation of Their Disease-Suppressive Mechanisms [J]. Scientia Agricultura Sinica, 2026, 59(7): 1467-1479.
[2]	XU YangHaoJun, CHEN LiMing, YANG ShiQi, TANG YiFan, TAN XueMing, ZENG YongJun, PAN XiaoHua, ZENG YanHua. Effects of Long-Term Different Straw Returning Methods on Soil Organic Carbon, Nutrients and Aggregate Formation in Different Soil Layers of Double Cropping Rice Field [J]. Scientia Agricultura Sinica, 2026, 59(7): 1492-1506.
[3]	ZHU Qi, JIA ZhenPeng, Tahir SHAH, XU ChenSheng, LI ZhiQi, LÜ HuiShuai, ZHU PengChao, WEI XiaoMin, HUANG DongLin, SUN YanNi, CAO WeiDong, GAO YaJun, WANG ZhaoHui, ZHANG DaBin. Green Manure Crops Combined with Enhanced-Efficiency Products Reduced Greenhouse Gas Emissions and Carbon Footprints in Dryland Wheat Fields [J]. Scientia Agricultura Sinica, 2026, 59(7): 1507-1522.
[4]	LI XingYu, HUANG Rong, XIAN YiMing, TIAN JiaoJiao, MA XiaoJin, YANG QiaoXi, LI Bing, WANG ChangQuan. Characteristics of Organic Carbon Fractions and Carbon Dioxide Emissions of Different Size Aggregates in Rice Field Soils in Response to Long-Term Fertilization [J]. Scientia Agricultura Sinica, 2026, 59(6): 1255-1271.
[5]	LI YongJuan, ZHANG YueTong, WANG YiBo, ZHAO ChangJiang, SONG Jie, CHEN XueLi, YAO Qin. Effects of Biochar Application on the Abundance and Community Composition of Nitrogen-Fixing Microbial nifH Gene in Soybean Rotation and Continuous Cropping Systems [J]. Scientia Agricultura Sinica, 2026, 59(6): 1272-1285.
[6]	WEI YuanHui, YU YiHui, LI ZiJun, DING WenJie, TU WenLong, MAO YanLing. Effects of Long-Term Fertilization on Soil Organic Carbon Structure and Carbon-Fixing Bacterial Community Structure in Yellow-Mud Paddy Soil [J]. Scientia Agricultura Sinica, 2026, 59(5): 1020-1033.
[7]	ZHANG WeiJian, YAN ShengJi, SHANG ZiYin, TANG ZhiWei, WU LiuGe, LI JiaRui, CHEN HaoTian, DENG AiXing, ZHANG Jun, ZHANG Xin, ZHENG ChengYan, SONG ZhenWei. Methane Emissions from Paddy Fields: Not Entirely Attributable to Rice Cultivation [J]. Scientia Agricultura Sinica, 2026, 59(4): 824-833.
[8]	LI Bei, ZHENG JiaXi, ZHANG HuiJie. Regional Disparities, Spatial Agglomeration and Dynamic Evolution of Planting Industry Eco-Efficiency in China [J]. Scientia Agricultura Sinica, 2026, 59(3): 687-704.
[9]	WANG RenZhuo, LI YueYing, HUANG ShaoMin, JIANG GuiYing, ZHANG Qi, LIU ChaoLin, YANG Jin, WANG MengRu, WANG BeiBei, LIU Fang, GUO DouDou, JIE XiaoLei, SONG Lian, LIU ShiLiang. Effects of Long-Term Combination of Organic and Inorganic Fertilizers on Bacterial Community Structure, Ecological Network, and Key Species in Fluvo-Aquic Soil [J]. Scientia Agricultura Sinica, 2026, 59(2): 354-367.
[10]	WANG Feng, CHANG YunNi, WU ZhiDan, SUN Jun, JIANG FuYing, CHEN YuZhen, YU WenQuan. Effects of Long-Term Nitrogen Application on Soil Fungal Diversity, Functional Groups and Assembly Processes in Tea Gardens [J]. Scientia Agricultura Sinica, 2026, 59(2): 368-385.
[11]	GUO HuiTing, SUN YanWen, NIU YiHeng, LI YaPeng, LI JianHua, XU MingGang. Fertilization Significantly Changed Soil Bacterial Diversity and Dominant Microbial Community in Croplands of Northern China—Meta Analysis [J]. Scientia Agricultura Sinica, 2026, 59(1): 114-128.
[12]	TUDI YIMITI, YU HongLiang, WANG Xu, PING XiaoYan, WU YiQian, WANG ChongWei. Effects of Fairy Rings on Carbon and Water Fluxes in Hulunbuir Meadow Steppe [J]. Scientia Agricultura Sinica, 2025, 58(9): 1804-1815.
[13]	TANG Yu, LEI BiXin, WANG ChuanWei, YAN XuanTao, WANG Hao, ZHENG Jie, ZHANG WenJing, MA ShangYu, HUANG ZhengLai, FAN YongHui. Response Mechanism of Anthocyanin Accumulation in Colored Wheat to Post-Anthesis High Temperature Stress [J]. Scientia Agricultura Sinica, 2025, 58(6): 1083-1101.
[14]	WU XinJia, XUE Wei, YAN YiDan, NIE YingYing, YE LiMing, XU LiJun. Temporal and Spatial Variation Characteristics of Soil Organic Carbon in Hulunbuir and Its Influencing Factors [J]. Scientia Agricultura Sinica, 2025, 58(6): 1145-1158.
[15]	ZHAO TongTong, GU XiaoBo, TAN ChuanDong, YAN TingLin, LI XiaoYan, CHANG Tian, DU YaDan. Effects of Water-Nitrogen Coupling on the Mineralization of Organic Carbon and Nitrogen for Mulched Farmland Soils in the Arid Regions of Northwest China [J]. Scientia Agricultura Sinica, 2025, 58(5): 929-942.