放牧强度对黄土丘陵区生物结皮土壤化学计量学特征的影响

doi:10.11733/j.issn.1007-0435.2021.11.021

草地学报 ›› 2021, Vol. 29 ›› Issue (11): 2547-2555.DOI: 10.11733/j.issn.1007-0435.2021.11.021

放牧强度对黄土丘陵区生物结皮土壤化学计量学特征的影响

李雯¹, 马昕昕², 马宁³, 赵允格², 乔羽¹, 王鹏², 孙会³

1. 西北农林科技大学资源环境学院, 陕西杨凌 712100;
2. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨陵 712100;
3. 西北农林科技大学林学院, 陕西杨凌 712100

收稿日期:2021-06-15 修回日期:2021-08-24 出版日期:2021-11-15 发布日期:2021-12-06
通讯作者: 赵允格,E-mail:zyunge@ms.iswc.ac.cn
作者简介:李雯(1997-),女,硕士研究生,主要从事生物结皮研究,E-mail:liwen8862@163.com*通讯作者Corresponding author,E-mail:
基金资助:
国家自然科学基金项目（41830758，41771318）和中国科学院“西部之光”交叉团队项目-重点实验室合作研究专项（2019）资助

Effects of Grazing Intensity on Stoichiomerty of Biological Soil Crusts in the Hilly Loess Plateau region

LI wen¹, MA Xin-xin², MA Ning³, ZHAO Yun-ge², QIAO Yu¹, WANG Peng², SUN Hui³

1. College of Nature Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi Province 712100, China;
3. College of Forestry, Northwest A&F University, Yangling, Shaanxi Province 712100, China

Received:2021-06-15 Revised:2021-08-24 Online:2021-11-15 Published:2021-12-06

摘要/Abstract

摘要： 研究以位于黄土丘陵区的固原、定边、神木、安塞为研究区域，以各区20年以上封禁草地（G0）为对照，分析了不同放牧强度（以羊粪球密度计：G1，0~10个·m^-2；G2，10~20个·m^-2；G3，>20个·m^-2）下生物结皮层及0~2 cm土层土壤有机碳（SOC）、全氮（TN）、全磷（TP）含量及生态化学计量学特征。结果表明：放牧仅降低安塞藓结皮盖度，对各地区的藻结皮盖度和生物量均无影响；从各区域来看，除神木生物结皮层和0~2 cm土层SOC、TN、N：P、C：P在G3下降低以外，其余地区各放牧强度下SOC、TN、TP含量及C：N、N：P、C：P无降低现象；总体来看，各强度放牧对生物结皮层SOC、TN、TP含量及C：N、N：P、C：P无影响，对0~2 cm土层SOC、TN、TP含量及C：N无影响，而N：P、C：P在G3降低。综上，放牧强度小于G3时，黄土丘陵区退耕草地生物结皮土壤养分及生态化学计量学特征无降低现象。

关键词: 生物结皮, 放牧强度, 化学计量, 碳、氮、磷, 养分限制

Abstract: Guyuan,Dingbian,Shenmu and Ansai were selected as the study areas in the hilly Loess Plateau region. The closed rehabilitated grasslands (G0) that over 20 years old was set as the control,the effects of grazing in different intensity on soil organic carbon (SOC),total nitrogen (TN),total phosphorus (TP) contents and ecological stoichiometry characteristics of biocrusts at 0~2 cm layer soil were investigated in the rehabilitated grasslands of the hilly Loess Plateau region. Three grazing intensity,G1:0~10 goat dung·m^-2,G2:10~20 goat dung·m^-2 and G3:>20 goat dung·m^-2,were included in the study. The results showed that the coverage of moss crusts decreased against the increase of grazing intensity in Ansai. In addition,grazing intensity did not exert significant effects on the coverage and biomass of cyanobacterial and moss crusts in the three other study areas. SOC,TN,N:P and C:P decreased under the intensity of G3 in Shenmu. Moreover,SOC,TN,TP,C:N,N:P and C:P did not show an obvious decrease under different grazing intensities in the three other areas. In general,grazing did not significantly affect the contents of SOC,TN,TP,C:N,N:P and C:P at the biocrustal layer in the hilly Loess Plateau region,and did not significantly affect the contents of SOC,TN,TP and C:N at 0~2 cm soil layer,but in comparison with no grazing,N:P and C:P were decreased at G3. In conclusion,when the grazing intensity was lower than G3,the soil nutrient and ecological stoichiometry characteristics of biological soil crusts were not reduced in the rehabilitated grassland of the hilly loess region.

Key words: Biological soil crusts, Grazing intensity, Stoichiometry, Carbon,nitrogen,phosphorus, Nutrient limitation

中图分类号:

李雯, 马昕昕, 马宁, 赵允格, 乔羽, 王鹏, 孙会. 放牧强度对黄土丘陵区生物结皮土壤化学计量学特征的影响[J]. 草地学报, 2021, 29(11): 2547-2555.

LI wen, MA Xin-xin, MA Ning, ZHAO Yun-ge, QIAO Yu, WANG Peng, SUN Hui. Effects of Grazing Intensity on Stoichiomerty of Biological Soil Crusts in the Hilly Loess Plateau region[J]. Acta Agrestia Sinica, 2021, 29(11): 2547-2555.

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参考文献

[1] 侯扶江,杨中艺.放牧对草地的作用[J].生态学报,2006(1):244-264
[2] 刘国彬,王国梁,上官周平,等. 黄土高原地区水土保持科学研究的重点领域[J]. 中国水土保持,2008(12):37-39,72
[3] 王明君,赵萌莉,崔国文,等. 放牧对草甸草原植被和土壤的影响[J]. 草地学报,2010,18(6):758-762
[4] 王玉辉,何兴元,周广胜. 放牧强度对羊草草原的影响[J]. 草地学报,2002(1):45-49
[5] REEDER J D,SCHUMAN G E. Influence of livestock grazing on C sequestration in semi-arid mixed-grass and short-grass rangelands[J]. Environmental Pollution,2002,116(3):457-463.
[6] 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[J]. 草地学报,1998,6(2):90-98
[7] MILCHUNAS D G,LAUENROTH W K. Quantitative Effects of Grazing on Vegetation and Soils Over a Global Range of Environments[J]. Ecological Monographs,1993,63(4):327-366
[8] BELNAP J. Biologial soil crusts in desers:a short review of their roie in sail frilty,stabilization,and water relations[J]. Algological Studies,2003,109(109):113-126
[9] 赵允格,许明祥,王全九,等. 黄土丘陵区退耕地生物结皮对土壤理化性状的影响[J]. 自然资源学报,2006,21(3):441-448
[10] 杨凯,赵允格,马昕昕. 黄土丘陵区生物土壤结皮层水稳性[J]. 应用生态学报,2012,23(1):173-177
[11] 冉茂勇,赵允格,刘玉兰. 黄土丘陵区不同盖度生物结皮土壤抗冲性研究[J]. 中国水土保持,2011(12):43-45
[12] 张侃侃,卜崇峰,高国雄. 黄土高原生物结皮对土壤水分入渗的影响[J]. 干旱区研究,2011,28(5):808-812
[13] 杨巧云. 黄土丘陵区生物结皮土壤生态化学计量学特征及其对干扰的响应[D]. 杨凌:西北农林科技大学,2019:50-51
[14] ELSER J J,STERNER R W,GOROKHNOVA E,et al. Biological stoichiomery from genes to ecosystems[J]. Ecology Letters,2000,3(6):540-550
[15] TIAN H,CHEN G,ZHANG C,et al. Pattern and variation of C:N:P ratios in China's soils:a synthesis of observational data[J]. Biogeochemistry,2010,98(1-3):139-151
[16] BAI Y F,WU J G,CLARK C M,et al. Grazing alters ecosystem functioning and C:N:P stoichiometry of grasslands along a regional precipitation gradient[J]. Journal of Applied Ecology,2012,49(6):1204-1215
[17] GANG C C,ZHAO W,ZHAO T,et al. The impacts of land conversion and management measures on the grassland net primary productivity over the Loess Plateau,Northern China
[18] OÑATIBIA G R,BOYEROL,AGUIAR M R. Regional productivity mediates the effects of grazing disturbance on plant cover and patch-size distribution in arid and semi-arid communities[J]. Oikos,2018,127(8):1205-1215
[19] 鲍士旦. 土壤农化分析[M]. 北京:中国农业出版社,2000:30-74
[20] 高丽倩,赵允格,许明祥,等. 生物土壤结皮演替对土壤生态化学计量特征的影响[J]. 生态学报,2018,38(2):678-688
[21] CASTLE S C,MORRISON C D,BARGER N N. Extraction of chlorophyll a from biological soil crusts:A comparison of solvents for spectrophotometric determination[J]. Soil biology and Biochemistry,2011,43(4):853-856
[22] 丁小慧,宫立,王东波,等. 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[J]. 生态学报,2012,32(15):4722-4730
[23] 裴雯,陈清,张洛梓,等. 放牧、水分和氮素对内蒙古草原土壤团聚体的影响[J]. 草地学报,2021,29(7):1499-1506
[24] 韩炳宏,牛得草,袁晓波,等. 围封与放牧措施下生物土壤结皮发育及其微生境土壤养分特征[J]. 草地学报,2016,24(6):1218-1225
[25] 杜子银,蔡延江,王小丹,等. 放牧牲畜粪便降解及其对草地土壤养分动态的影响研究进展[J]. 生态学报,2019,39(13):4627-4637
[26] 侯扶江,任继周. 甘肃马鹿冬季放牧践踏作用及其对土壤理化性质影响的评价[J]. 生态学报,2003,23(3):486-495
[27] HAN W,LUO Y,DU G. Effects of clipping on diversity and above-ground biomass associated with soil fertility on an alpine meadow in the eastern region of the Qinghai-Tibetan Plateau[J]. New Zealand Journal of Agricultural Research,2007,50(3):361-368
[28] 宋洁,王凤歌,温璐,等. 放牧对温带典型草原植物物种多样性及土壤养分的影响[J]. 草地学报,2019,27(6):1694-1701
[29] MCNAUGHTON S J,BANYIKWA F F,MCNAUGHTON M M. Promotion of the cycling of diet-enhancing nutrients by African grazers[J]. Science,1997,278(5344):1798-1800
[30] 张旭冉,张卫青,王海茹,等. 克氏针茅草原土壤生态化学计量特征对放牧强度的响应[J]. 生态学报,2021,41(13):1-8
[31] YANG Z N,ZHU Q A,HAN W,et al. The linkage between vegetation and soil nutrients and their variation under different grazing intensities in an alpine meadow on the eastern Qinghai-Tibetan Plateau[J]. Ecological Engineering,2018(110):128-136

放牧强度对黄土丘陵区生物结皮土壤化学计量学特征的影响

Effects of Grazing Intensity on Stoichiomerty of Biological Soil Crusts in the Hilly Loess Plateau region

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