樟子松天然林土壤碳氮含量与水解酶活性坡位差异及月动态

doi:10.11707/j.1001-7488.20200205

摘要/Abstract

摘要：

目的: 研究大兴安岭地区樟子松天然林土壤的碳氮含量与水解酶活性的坡位差异和月份动态，探究土壤碳氮含量与水解酶活性的关系，以期为阐明土壤碳氮转化酶学机制及森林土壤可持续利用提供理论依据。方法: 2018年5-10月每月中旬，在大兴安岭漠河地区樟子松天然林坡地设置试验地。分别在试验地上、中、下坡位各设置3块20 m×30 m的樟子松林试验样地，每样地选3个取样点，每取样点清除枯枝落叶层后，记录不同土深（2.5、7.5、15、25 cm）处土壤温度。同时采集每个取样点不同土层（0~5、5~10、10~20和20~30 cm）的土壤样品测定土壤含水率、碳氮含量（有机碳、全氮）及水解酶（脲酶、蛋白酶、蔗糖酶、纤维素酶）活性。结果: 土壤的有机碳及全氮含量随土层加深而降低，随坡位升高而减少，但坡位差异不显著（P>0.05）；0~5、5~10、10~20和20~30 cm土层的有机碳含量分别为68.53~80.38、40.28~46.66、15.86~21.08和11.91~13.79 g·kg^-1，土壤全氮含量分别为5.34~5.96、2.98~3.68、2.35~2.61和1.54~1.75 g·kg^-1；土壤脲酶、蛋白酶、蔗糖酶及纤维素酶活性随土层加深而降低；随坡位降低，土壤脲酶及蔗糖酶活性增高，蛋白酶与纤维素酶活性降低；月动态分析显示，土壤有机碳和全氮含量高峰期均为9月，酶活性高峰期集中在7-8月；相关分析表明，土壤碳氮（有机碳、全氮）含量与水解酶（脲酶、蔗糖酶、纤维素酶、蛋白酶）活性和含水率均极显著正相关（P < 0.01），土壤温度与有机碳含量显著正相关（P>0.05）、与全氮含量显著负相关（P < 0.05）。结论: 大兴安岭地区樟子松天然林土壤碳氮含量与水解酶活性随土层加深而降低，土壤碳氮含量与酶活性的坡位差异不显著（P>0.05），有机碳和全氮含量高峰期为9月，土壤水解酶活性高峰期集中在7-8月。土壤碳氮含量与水解酶活性极显著相关（P < 0.01），土壤温湿度对碳氮含量与酶活性具有显著影响（P < 0.05）。

关键词: 大兴安岭, 樟子松, 土壤, 碳氮含量, 水解酶活性, 温湿度

Abstract:

Objective: The study was conducted to reveal the slope locational differences and monthly dynamics of soil carbon and nitrogen contents and hydrolase activities in natural forest of Pinus sylvestris var. mongolica Litv. The correlation between carbon/nitrogen contents and hydrolase activities, and the effect of soil temperature and moisture. Method: The study was performed in a natural forest of Pinus sylvestris var. mongolica located in Mohe Town, Daxing'anling Region. In the middle of every month from May to October, 2018, three blocks (20 m×30 m) in every slope location (upper slope, middle slope, lower slope) were selected as sample region. Three sampling points were selected in every sample region. Soil temperatures at depths of 2.5 cm, 7.5 cm, 15 cm, 25 cm were measured after removing litters. Soil samples at different depths (0-5, 5-10, 10-20, and 20-30 cm), on different slope locations, and in different months were collected by excavating soil profiles. Subsequently, the moistures, organic carbon contents, total nitrogen contents, and hydrolase (urease, protease, sucrase, and cellulase) activities of soil samples were determined in laboratory. Result: Result showed that the contents of carbon and nitrogen were decreased with the increase of soil depth, and increased with the lowering the slope locations, and the highest contents of both were showed in September. The soil organic carbon contents in the soil layers of depth 0-5, 5-10, 10-20, 20-30 cm were 68.53-80.38, 40.28-46.66, 15.86-21.08, and 1.91-13.79 g·kg^-1 respectively, and soil total nitrogen contents in these layers 5.34-5.96, 2.98-3.68, 2.35-2.61, and 1.54-1.75 g·kg^-1 respectively. However, organic carbon contents and total nitrogen contents among slope locations did not show great differencs (P>0.05). Additionally, activities of urease, protease, sucrase, and cellulase were decreased with soil depth, urease and sucrase maintained higher activities in a lower slope location, but the protease, cellulase did the opposite. Furthermore, hydrolases always showed their highest activities in July or August. Finally, the results also indicated that contents of soil carbon and nitrogen were significantly and positively correlated with activities of detected soil hydrolytic enzymes (P < 0.01); soil carbon and nitrogen contents were significantly and positively correlated with soil moisture (P < 0.01); and soil temperature was significantly and positively correlated with soil carbon content (P>0.05), but negatively correlated with total soil nitrogen content (P < 0.05). Conclusion: The study demonstrated that soil carbon/nitrogen contents and hydrolase activities in P. sylvestris var. mongolica forest maintains a common pattern that 0-5 cm > 5-10 cm > 10-20 cm > 20-30 cm; contents and activities at different slope locations were indistinguishable (P>0.05); the highest soil carbon and nitrogen contents were found in September; and the highest hydrolase activities were found from July to August. It also proved that contents of carbon and nitrogen were significantly correlated with hydrolytic enzyme activities (P < 0.01); ant the soil temperature and moisture had significan affects on the carbon and nitrogen contents and hydrolase activities (P < 0.05).

Key words: Daxing'anling, Pinus sylvestris var. mongolica, soil, carbon and nitrogen content, hydrolase activity, soil temperature and moisture

中图分类号:

S714

VuongThi Minh Dien,曾健勇,满秀玲. 樟子松天然林土壤碳氮含量与水解酶活性坡位差异及月动态[J]. 林业科学, 2020, 56(2): 40-47.

Thi Minh Dien Vuong,Jianyong Zeng,Xiuling Man. Slope Locational Differences and Monthly Dynamics of Soil Carbon and Nitrogen Contents and Hydrolases Activity in the Natural Forest of Pinus sylvestris var. mongolica[J]. Scientia Silvae Sinicae, 2020, 56(2): 40-47.

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参考文献 0

	陈小锦, 沈鹏飞, 陈博阳, 等. 不同蚓粪添加量对红壤微生物及酶活性的影响. 江苏农业科学, 2016. 44 (11): 443- 445.
	Chen X J , Shen P F , Chen B Y , et al. Effects of different amounts of vermis on microorganism and enzyme activity in red soil. Jiangsu Agricultural Sciences, 2016. 44 (11): 443- 445.
	丁咸庆, 马慧静, 朱晓龙, 等. 大围山典型森林土壤有机氮垂直分布特征. 环境科学, 2015. 36 (10): 3809- 3815.
	Ding X Q , Ma H J , Zhu X L , et al. Vertical distribution characteristics of typical forest soil organic nitrogen in Dawei mountain. Environmental Science, 2015. 36 (10): 3809- 3815.
	李红琴, 徐海燕, 马小亮, 等. 马衔山多年冻土与季节冻土区土壤微生物量及酶活性的季节动态. 冰川冻土, 2017. 39 (2): 421- 428.
	Li H Q , Xu H Y , Ma X L , et al. Seasonal dynamics of soil microbial biomass and enzyme activities in the manbishan permafrost and seasonal permafrost regions. Journal of Glaciology and Geocryology, 2017. 39 (2): 421- 428.
	李奕霏, 肖谋良, 袁红朝, 等. CO₂倍增对稻田土壤碳氮水解酶活性的影响. 中国环境科学, 2018. 38 (9): 3474- 3480. doi: 10.3969/j.issn.1000-6923.2018.09.034
	Li Y F , Xiao M L , Yuan H C , et al. Effects of doubled concentration of CO₂ on soil hydrolase activities related to turnover of soil C and N in a rice-cropping system. China Environmental Science, 2018. 38 (9): 3474- 3480. doi: 10.3969/j.issn.1000-6923.2018.09.034
	李媛媛, 周运超, 邹军, 等. 黔中石灰岩地区典型灌木林土壤酶活性与植物物种多样性研究. 水土保持研究, 2010. 17 (3): 245- 249.
	Li Y Y , Zhou Y C , Zou J , et al. A study on soil enzyme and plant species diversity of typical shrub in the Limestone area of central Guizhou. Research of Soil and Water Conservation, 2010. 17 (3): 245- 249.
	罗攀, 陈浩, 肖孔操, 等. 地形、树种和土壤属性对喀斯特山区土壤胞外酶活性的影响. 环境科学, 2017. 38 (6): 2577- 2585.
	Luo P , Chen H , Xiao K C , et al. Effects of topography, tree species and soil properties on soil enzyme activity in karst regions. Environmental Science, 2017. 38 (6): 2577- 2585.
	马云波, 牛聪傑, 许中旗. 人工与自然植被恢复下尾矿土壤微生物及酶活性的时空变化. 林业科学, 2016. 52 (6): 93- 100.
	Ma Y B , Niu C J , Xu Z Q . Temporal and spatial variation of soil microbes and enzyme activities in iron tailings under natural restoration and plantation. Scientia Silvae Sinicae, 2016. 52 (6): 93- 100.
	聂文翰, 戚志萍, 冯海玮, 等. 复合菌剂秸秆堆肥对土壤碳氮含量和酶活性的影响. 环境科学, 2017. 38 (2): 783- 791.
	Nie W H , Qi Z P , Feng H W , et al. Straw composts with composite inoculants and their effects on soil carbon and nitrogen contents and enzyme activity. Environmental Science, 2017. 38 (2): 783- 791.
	潘磊磊, KwonSemyung, 刘艳书, 等. 沙地樟子松天然林南缘分布区林木竞争、空间格局及其更新特征. 生态学报, 2019. 39 (10): 1- 12. doi: 10.3969/j.issn.1673-1182.2019.10.001
	Pan L L , Kwon Semyung , Liu Y S , et al. Tree competiton, spatial pattern, and regeneration of a Mongolian pine natural forest in the southern geographical edge. Acta Ecologica Sinica, 2019. 39 (10): 1- 12. doi: 10.3969/j.issn.1673-1182.2019.10.001
	钱杨, 孙洪刚, 董汝湘, 等. 针叶树碳水化合物分配研究进展. 林业科学, 2018. 54 (1): 141- 153.
	Qian Y , Sun H G , Dong R X , et al. Research progress of carbohydrates allocation in conifers. Scientia Silvae Sinicae, 2018. 54 (1): 141- 153.
	单爱琴, 韩宝平, 王爱宽, 等. 四氯化碳污染对土壤酶活性的影响. 中国矿业大学学报, 2008. 37 (2): 207- 210. doi: 10.3321/j.issn:1000-1964.2008.02.013
	Shan A Q , Han B P , Wang A K , et al. Effects of carbon tetrachloride contamination on enzyme activities in soil. Journal of China University of Mining & Technology, 2008. 37 (2): 207- 210. doi: 10.3321/j.issn:1000-1964.2008.02.013
	孙英杰, 徐广平, 沈育伊, 等. 桂林会仙喀斯特湿地芦苇群落区土壤酶活性. 湿地科学, 2018. 16 (2): 196- 203.
	Sun Y J , Xu G P , Shen Y Y , et al. Soil enzyme activities in the reed community of Huixian karst wetland in Guilin. Wetland Science, 2018. 16 (2): 196- 203.
	王兵, 刘国彬, 薛萐. 退耕地养分和微生物量对土壤酶活性的影响. 中国环境科学, 2010. 30 (10): 1375- 1382.
	Wang B , Liu G B , Xue S . Effects of soil nutrient and soil microbial biomass on soil enzyme activities in abandoned croplands with different restoration age. China Environmental Science, 2010. 30 (10): 1375- 1382.
	王娟, 刘淑英, 王平, 等. 不同施肥处理对西北半干旱区土壤酶活性的影响及其动态变化. 土壤通报, 2008. 39 (2): 299- 303. doi: 10.3321/j.issn:0564-3945.2008.02.018
	Wang J , Liu S Y , Wang P , et al. Effects of different fertilization treatments on soil enzyme activities and dynamic changes in Semi-arid region of Northwest China. Chinese Journal of Soil Science, 2008. 39 (2): 299- 303. doi: 10.3321/j.issn:0564-3945.2008.02.018
	王晓锋, 刘红, 张磊, 等. 澎溪河消落带典型植物群落根际土壤无机氮形态及氮转化酶活性. 中国环境科学, 2015. 35 (10): 3059- 3068. doi: 10.3969/j.issn.1000-6923.2015.10.025
	Wang X F , Liu H , Zhang L , et al. Inorganic nitrogen forms and related enzyme activity of rhizosphere soils under typical plants in the littoral zone of Pengxi River. China Environmental Science, 2015. 35 (10): 3059- 3068. doi: 10.3969/j.issn.1000-6923.2015.10.025
	王艳梅, 张龙冲, 马天晓, 等. 人工调控对泡桐顶芽生长发育的影响. 林业科学, 2016. 52 (8): 53- 59.
	Wang Y M , Zhang L C , Ma T X , et al. Effect of artificial regulation on terminal bud growth of Paulownia spp. Scientia Silvae Sinicae, 2016. 52 (8): 53- 59.
	吴传敬,郭剑芬,许恩兰,等. 2019.采伐残余物不同处理方式对杉木幼林土壤有机碳组分和相关酶活性的影响,土壤学报, 56(6): 1504-1513: 1-9.
	Wu C J, Guo J F, Xu E L, et al. 2019. Effects of different treatments of harvesting residues on soil organic carbon components and related enzyme activities in young Chinese fir forests. Acta Pedologica Sinica, 56(6):1504-1513:1-9.[in Chinese].
	解雪峰, 濮励杰, 王琪琪, 等. 滨海滩涂围垦区不同围垦年限土壤酶活性变化及其与理化性质关系. 环境科学, 2018. 39 (3): 1404- 1412.
	Xie X F , Pu L J , Wang Q Q , et al. Response of soil enzyme activities and their relationships with physicochemical properties to different aged Coastal reclamation areas, Eastern China. Environmental Science, 2018. 39 (3): 1404- 1412.
	尹大川, 邓勋, ChetIlan, 等. 厚环乳牛肝菌(Suillus grevillei) N40与绿木霉(Trichoderma virens) T43复合接种下樟子松苗木的生理响应. 生态学杂志, 2014. 33 (8): 2142- 2147.
	Yin D C , Deng X , Chet Ilan , et al. Physiological responses of Pinus sylvestris var.mongolica seedlings to the interaction between Suillus grevillei N40 and Trichoderma virens T43. Chinese Journal of Ecology, 2014. 33 (8): 2142- 2147.
	张知晓, 泽桑梓, 户连荣, 等. 土壤脲酶活性调控因素和脲酶活性细菌系统发育研究. 西部林业科学, 2018. 47 (1): 65- 73.
	Zhang Z X , Ze S Z , Hu L R , et al. Regulatory factors of soil urease activity and phylogenetic analysis of urease bacteria. Journal of West China Forestry Science, 2018. 47 (1): 65- 73.
	赵盼盼, 周嘉聪, 林开淼, 等. 不同海拔对福建戴云山黄山松林土壤微生物生物量和土壤酶活性的影响. 生态学报, 2019. 39 (8): 1- 10. doi: 10.3969/j.issn.1673-1182.2019.08.001
	Zhao P P , Zhou J C , Lin K M , et al. Effects of different altitudes on soil microbial biomass and enzyme activities in Pinus taiwanensis forests on Daiyun Mountain, Fujian Province. Acta Ecologica Sinica, 2019. 39 (8): 1- 10. doi: 10.3969/j.issn.1673-1182.2019.08.001
	Adamczyk B , Adamczyk S , Kukkola M , et al. Logging residue harvest may decrease enzymatic activity of boreal forest soils. Soil Biology and Biochemistry, 2015. 82, 74- 80. doi: 10.1016/j.soilbio.2014.12.017
	Araghi A , Adamowski J , Martinez C J , et al. Projections of future soil temperature in northeast Iran. Geoderma, 2019. 349, 11- 24. doi: 10.1016/j.geoderma.2019.04.034
	Ayoubi S , Mokhtari Karchegani P , Mosaddeghi M R , et al. Soil aggregation and organic carbon as affected by topography and land use change in western Iran. Soil and Tillage Research, 2012. 121, 18- 26. doi: 10.1016/j.still.2012.01.011
	Baldrian P, Stursova M. 2011.Enzymes in forest soils/Soil enzymology. Berlin: Springer-Verlag Press.
	Barberá G G , Martínez-Garagarza X , Martínez-Mena M , et al. Soil moisture dynamics alone does not explain differences in growth associated to organic amendment in a reforestation of a semiarid ecosystem. Catena, 2019. 180, 383- 391. doi: 10.1016/j.catena.2019.05.006
	Bobul'ská L , Fazekašová D , Angelovi Dč ová L . Vertical profiles of soil properties and microbial activities in peatbog soils in Slovakia. Environmental Processes, 2015. 2 (2): 411- 418. doi: 10.1007/s40710-015-0073-7
	Cui J , Zhou J , Peng Y , et al. Atmospheric inorganic nitrogen in wet deposition to a red soil farmland in Southeast China, 2005-2009. Plant and Soil, 2012. 359, 387- 395. doi: 10.1007/s11104-012-1200-0
	Grenfell M C , Aalto R , Grenfell S E , et al. Ecosystem engineering by hummock-building earthworms in seasonal wetlands of eastern South Africa:Insights into the mechanics of biomorphodynamic feedbacks in wetland ecosystems. Earth Surface Processes and Landforms, 2019. 44 (1): 354- 366. doi: 10.1002/esp.4497
	Jin K , Sleutel S , Buchan D , et al. Changes of soil enzyme activities under different tillage practices in the Chinese Loess Plateau. Soil and Tillage Research, 2009. 104 (1): 115- 120. doi: 10.1016/j.still.2009.02.004
	Kandeler E , Gerber H . Short-term assay of soil urease activity using colorimetric determination of ammonium. Biology and Fertility of Soils, 1988. 6, 68- 72.
	Ladd J N , Butler J H A . Short-term assays of soil proteolytic enzyme activities using proteins and dipeptide derivatives as substrates. Soil Biology & Biochemistry, 1972. 4, 19- 30.
	Li Y , Zhang L , Fang S , et al. Variation of soil enzyme activity and microbial biomass in poplar plantations of different genotypes and stem spacings. Journal of Forestry Research, 2018. 29 (4): 963- 972. doi: 10.1007/s11676-017-0524-2
	Raiesi F , Riahi M . The influence of grazing exclosure on soil C stocks and dynamics, and ecological indicators in upland arid and semi-arid rangelands. Ecological Indicators, 2014. 41, 145- 154. doi: 10.1016/j.ecolind.2014.01.040
	Ross D J , Roberts H S . Enzyme activities and oxygen uptakes of soils under pasture in temperature and rainfall sequences. European Journal of Soil Science, 1970. 21 (2): 368- 381. doi: 10.1111/j.1365-2389.1970.tb01187.x
	Shen Y , Cheng R , Xiao W , et al. Labile organic carbon pools and enzyme activities of Pinus massoniana plantation soil as affected by understory vegetation removal and thinning. Scientific Reports, 2018. 8 (1): 1- 9. doi: 10.1038/s41598-017-17765-5
	Venkatesan S , Senthurpandian V K . Comparison of enzyme activity with depth under tea plantations and forested sites in south India. Geoderma, 2006. 137 (1/2): 212- 216.
	Wang T , Kang F F , Cheng X Q , et al. Soil organic carbon and total nitrogen stocks under different land uses in a hilly ecological restoration area of North China. Soil and Tillage Research, 2016. 163, 176- 184. doi: 10.1016/j.still.2016.05.015
	Wang W W , Deborah P D , Lv R H , et al. Soil enzyme activities in Pinus tabulaeformis (Carriére) plantations in Northern China. Forests, 2016. 7 (12): 1- 12.
	Xiao Y , Huang Z , Lu X . Changes of soil labile organic carbon fractions and their relation to soil microbial characteristics in four typical wetlands of Sanjiang Plain, Northeast China. Ecological Engineering, 2015. 82, 381- 389. doi: 10.1016/j.ecoleng.2015.05.015
	Xie X , Pu L , Wang Q , et al. Response of soil physicochemical properties and enzyme activities to long-term reclamation of coastal saline soil, Eastern China. Science of The Total Environment, 2017. 607-608, 1419- 1427. doi: 10.1016/j.scitotenv.2017.05.185
	Yang K , Zhu J , Yan Q , et al. Soil enzyme activities as potential indicators of soluble organic nitrogen pools in forest ecosystems of Northeast China. Annals of Forest Science, 2012. 69 (7): 795- 803. doi: 10.1007/s13595-012-0198-z
	Zhang C , Liu G , Xue S , et al. Soil organic carbon and total nitrogen storage as affected by land use in a small watershed of the Loess Plateau, China. European Journal of Soil Biology, 2013. 54, 16- 24. doi: 10.1016/j.ejsobi.2012.10.007

指标 Indicators	有机碳 Organic carbon	全氮 Total nitrogen	脲酶 Urease	蛋白酶 Protease	蔗糖酶 Surcease	纤维素酶 Cellulase	温度 Temperature	含水率 Moisture
有机碳Organic carbon	1	0.807^**	0.818^**	0.788^**	0.792^**	0.721^**	0.195	0.699^**
全氮Total nitrogen	0.807^**	1	0.604^**	0.481^**	0.490^**	0.394^**	-0.280^*	0.384^**
脲酶Urease	0.818^**	0.604^**	1	0.850^**	0.862^**	0.652^**	0.418^**	0.611^**
蛋白酶Protease	0.788^**	0.481^**	0.850^**	1	0.714^**	0.809^**	0.430^**	0.640^**
蔗糖酶Surcease	0.792^**	0.490^**	0.862^**	0.714^**	1	0.571^**	0.498^**	0.700^**
纤维素酶Cellulase	0.721^**	0.394^**	0.652^**	0.809^**	0.571^**	1	0.452^**	0.393^**
温度Temperature	0.195	-0.280^*	0.418^**	0.430^**	0.498^**	0.452^**	1	0.292^*
含水率Moisture	0.699^**	0.384^**	0.611^**	0.640^**	0.700^**	0.393^**	0.292^*	1

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