Effects of Human Trampling Biocrusts on Soil Enzyme Activities

doi:10.7522/j.issn.1000-694X.2018.00075

Journal of Desert Research ›› 2019, Vol. 39 ›› Issue (4): 54-63.DOI: 10.7522/j.issn.1000-694X.2018.00075

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Effects of Human Trampling Biocrusts on Soil Enzyme Activities

Liu Yanmei^1,2, Yang Hangyu^3,4, Jia Rongliang², Li Yixuan⁵

1. School of Biological Engineering and Technology, Tianshui Normal University, Tianshui 741001, Gansu, China;
2. Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
3. College of Landscape Architecture, Gansu Agricultural University, Lanzhou 730070, China;
4. Gansu Forestry Technology College, Tianshui 741020, Gansu, China;
5. College of Agriculture, Shenyang Agricultural University, Shenyang 110866, China

Received:2018-05-09 Revised:2018-07-02 Online:2019-07-20 Published:2019-07-12

Abstract

Abstract: Soil enzymes may act as important biological properties in measuring ecological restoration in desert areas. In order to investigate the effects of human trampling to biocrusts on soil quality, sandy soil under human trampling to biocrusts was served as the research object in artificial and natural vegetation areas at the southeastern edge of the Tengger Desert. Trampling to biocrusts was divided into three levels depending on trampling levels to biocrusts:non-trampling, medium trampling and severe trampling to biocrusts, respectively. Soil samples were taken from 0~5 cm and 5~15 cm soil depth, respectively and soil urease, invertase, catalase, dehydrogenase, alkaline phosphatase and protease activities were measured. Soil quality could be indicated by these soil enzymes activities in desert areas. The results showed that human trampling to cyanobacteria-lichen and moss crusts reduced activities of soil urease, invertase, catalase, dehydrogenase, alkaline phosphatase and protease. Moreover, these soil enzyme activities have a linear negative correlation with trampling degree of biocrusts. In addition to the trampling degree, the studied enzymes activities following trampling biocrusts were significantly influenced by successional stages of crust and soil depth. The six studied enzymes activities under trampled biocrusts in 0~5 cm soil layer were significantly greater than 5~15 cm soil layer. In addition, there was a consistent law of soil enzyme activities under biocrusts no matter how seasons change, follow orders:non-trampling biocrusts>medium-trampling biocrusts=>severe-trampling biocrusts. Moreover, seasonal changes of soil enzyme activities under trampling or non-trampling biocrusts was obvious which from maximum to minimum is summer, autumn, spring and winter. Therefore, human trampling to biocrusts could decrease soil enzyme activity in artificial and natural vegetation areas at southeastern edge of the Tengger Desert, indicating a reduction of soil quality and the degradation of desert ecosystem. The results indicated that the protection to biocrusts is beneficial to the recovery of sandy soil and desert ecological system.

Key words: biocrusts, human trampling, trampling degree, successional stage of crusts, soil enzyme activity

CLC Number:

S154.36

Liu Yanmei, Yang Hangyu, Jia Rongliang, Li Yixuan. Effects of Human Trampling Biocrusts on Soil Enzyme Activities[J]. Journal of Desert Research, 2019, 39(4): 54-63.

References

[1] West N E.Structure and function of microphytic soil crusts in wildland ecosystems of arid to semi-arid regions[J].Advances in Ecological Research,1990,20:179-223.
[2] Belnap J,Lange O L.Biological soil crust:Structure,Function and Management[M].Berlin,Germany:Springer-Verlag,2003.
[3] 李新荣.荒漠生物土壤结皮生态与水文学研究[M].北京:高等教育出版社,2016.
[4] Liu Y M,Xing Z S,Yang H Y.Effect of biological soil crusts on microbial activity in soils of the Tengger Desert (China)[J].Journal of Arid Environments,2017,144:201-211.
[5] Gómez D A,Aranibar J N,Tabeni S,et al.Biological soil crust recovery after long-term grazing exclusion in the Monte Desert (Argentina).Changes in coverage,spatial distribution,and soil nitrogen[J].Acta Oecologica,2012,38:33-40.
[6] 梁少民,吴楠,王红玲,等.干扰对生物土壤结皮及其理化性质的影响[J].干旱区地理,2005,28(6):818-823.
[7] Herrick J E,Van Zee J W,Belnap J,et al.Fine gravel controls hydrologic and erodibility responses to trampling disturbance for coarse-textured soils with weak cyanobacterial crusts[J].Catena,2010,83:119-126.
[8] 石亚芳,赵允格,李晨辉,等.踩踏干扰对生物结皮土壤渗透性的影响[J].应用生态学报,2017,28(10):3227-3234.
[9] Tabatabai M A.Soil enzymes[M]//Page A L,Miller R H,Keeney D R.Methods of Soil Analysis.Madison,USA:American Society of Agronomy,1994:775-833.
[10] Lebrun J D,Trinsoutrot-Gattin I,Vinceslas-Akpa M,et al.Assessing impacts of copper on soil enzyme activities in regard to their natural spatiotemporal variation under long-term different land uses[J].Soil Biology & Biochemistry,2012,49:150-156.
[11] Liu Y M,Yang H Y,Li X R,et al.Effects of biological soil crusts on soil enzyme activities in revegetated areas of the Tengger Desert,China[J].Applied Soil Ecology,2014,80:6-14.
[12] Belnap J.Soil surface disturbances in cold deserts:effects on nitrogenase activity in cyanobacterial-lichen soil crusts[J].Biology and Fertility of Soils,1996,23:362-367.
[13] Belnap J.Impacts of off-road vehicles on nitrogen cycles in biological soil crusts:resistance in different U.S. deserts[J].Journal of Arid Environments,2002,52:155-165.
[14] 杨航宇,刘艳梅,王廷璞,等.生物土壤结皮对荒漠区土壤微生物数量和活性的影响[J].中国沙漠,2017,37(5):950-960.
[15] Li X R,Zhang P,Su Y G,et al.Carbon fixation by biological soil crusts following revegetation of sand dunes in arid desert regions of China:a four-year field study[J].Catena,2012,97:119-126.
[16] 关松荫.土壤酶及其研究方法[M].北京:农业出版社,1986:260-344.
[17] 吴金水,林启美,黄巧云,等.土壤微生物生物量测定方法及其应用[M].北京:气象出版社,2006.
[18] 程军回,张元明.影响生物土壤结皮分布的环境因子[J].生态学杂志,2010,29(1):133-141.
[19] 李新荣,贾玉奎,龙利群.干旱半干旱地区土壤微生物土壤结皮的生态学意义及若干研究进展[J].中国沙漠,2001,21(1):4-12.
[20] Bergstrom D W,Monreal C M,King D J.Sensitivity of soil enzyme activities to conservation practices[J].Soil Science Society of America Journal,1998,62(5):1286-1295.
[21] Trasar C,Leirós M C,Gil S F.Hydrolytic enzyme activities in agricultural and forest soils.Some implications for their use as indicators of soil quality[J].Soil Biology & Biochemistry,2008,40(9):2146-2155.
[22] Eldridge D J,Rosentreter R. Morphological groups:a framework for monitoring microphytic crusts in arid landscapes[J].Journal of Arid Environment,1999,41:11-25.
[23] 都军,李宜轩,杨晓霞,等.腾格里沙漠东南缘生物土壤结皮对土壤理化性质的影响[J].中国沙漠,2018,38(1):111-116.

Effects of Human Trampling Biocrusts on Soil Enzyme Activities

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