[1]Yang Fuyu,Chen Qibo,Li Jianqiang,et al.Effects of Prescribed Burning on Soil Shear Strength in Pinus yunnanensis Forests[J].Research of Soil and Water Conservation,2023,30(06):214-221.[doi:10.13869/j.cnki.rswc.2023.06.028]
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Effects of Prescribed Burning on Soil Shear Strength in Pinus yunnanensis Forests
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 06
Page number:
214-221
Column:
Public date:
2023-10-10
- Title:
- Effects of Prescribed Burning on Soil Shear Strength in Pinus yunnanensis Forests
- CLC:
- S714.7
- DOI:
- 10.13869/j.cnki.rswc.2023.06.028
- Abstract:
- [Objective] The purpose of this study is to explore the characteristics of soil mechanical properties to prescribed burning in Pinus yunnanensis forests, so as to provide scientific basis for sustainable forest management and optimization of prescribed burning in forest areas and control of soil erosion that may be caused by prescribed burning. [Methods] The sample plots of P. yunnanensis forest in central Yunnan Plateau were selected as the research objects so that to systematically study the effects of prescribed burning on soil shear strength of P. yunnanensis forest by combining field investigation and sampling with indoor experimental analysis. [Results] The root and fine root biomass density and root length density in the 0—20 cm soil layer significantly reduced and the difference in the 20—60 cm soil layer were not significant compared with the unburned forest. The shear strength, soil cohesion significantly reduced in 0—20 cm soil layer after the prescribed burning, the impacts were no significant with the increase of soil depth. The RDA analysis results showed that the soil shear strength, soil cohesion, soil friction angle and soil organic matter and fine root length density significantly positively correlated(p<0.05)in both treatments, and the fine root long density was the highest explaining factor in the two treatments. [Conclusion] The decrease of fine root distribution and soil organic matter content after prescribed burning in Pinus yunnanensis forests are the main reasons for the decrease of soil shear strength.
- References:
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[1] 邓喜庆,皇宝林,温庆忠,等.云南松林在云南的分布研究[J].云南大学学报:自然科学版,2013,35(6):843-848.
Deng X Q, Huang B L, Wen Q Z, et al. A research on the distribution of Pinus yunnanensis forest in Yunnan Province[J].Journal of Yunnan University: Natural Sciences Edition,2013,35(6):843-848.
[2] 鲁韦坤,李湘,余凌翔,等.云南省森林火险气象等级区划研究[J].大气科学学报,2011,34(3):322-328.
Lu W K, Li X, Yu L X, et al. A study on meteorological forest fire risk area division in Yunnan Province[J].Transactions of Atmospheric Sciences,2011,34(3):322-328.
[3] Brockway D G, Gatewood R G, Paris R B. Restoring fire as an ecological process in shortgrass prairie ecosystems: Initial effects of prescribed burning during the dormant and growing seasons[J]. Journal of Environmental Management, 2002,65(2):135-152.
[4] 高岚,赵铁珍.我国的森林灾害与林业可持续发展[J].北京林业大学学报:社会科学版,2003,2(S1):1-6.
Gao L, Zhao T Z. The relationship between forest disasters and forestry sustainable development in China[J].Journal of Beijing Forestry University: Social Sciences,2003,2(S1):1-6.
[5] 王秋华,单保君,龚家平,等.滇中地区云南松纯林计划烧除研究[J].江西农业大学学报,2018,40(2):235-240.
Wang Q H, Shan B J, Gong J P, et al. A study on prescribed burning in pure forest of Pinus yunnanensis Franch in central Yunnan Province[J].Acta Agriculturae Universitatis Jiangxiensis,2018,40(2):235-240.
[6] 王健敏,李帅锋,徐凡迪,等.计划烧除对思茅松天然林群落结构与物种多样性的影响[J].西北林学院学报,2020,35(1):62-67.
Wang J M, Li S F, Xu F D, et al. Effects of prescribed burning on the community structue and species diversity in pinus kesiya var. langbianensis primary forest[J].Journal of Northwest Forestry University,2020,35(1):62-67.
[7] 张文文,王秋华,龙腾腾,等.周期性计划烧除对森林生态系统的影响研究综述[J].西南林业大学学报:自然科学版,2021,41(4):181-188.
Zhang W W, Wang Q H, Long T T, et al. A review of the effects of periodic prescribed burning on forest ecosystems[J].Journal of Southwest Forestry University: Natural Sciences,2021,41(4):181-188.
[8] 代丽,张喜,刘济明.计划火烧对植被和土壤影响研究综述[J].世界林业研究,2022,35(2):47-52.
Dai L, Zhang X, Liu J M. Review on effects of prescribed fire on vegetation and soil[J]. World Forestry Research,2022,35(2):47-52.
[9] Yildiz A, Graf F, Rickli C, et al. Determination of the shearing behaviour of root-permeated soils with a large-scale direct shear apparatus[J]. Catena, 2018,166:98-113.
[10] 朱春鹏,刘汉龙,沈扬.酸碱污染土强度特性的室内试验研究[J].岩土工程学报,2011,33(7):1146-1152.
Zhu C P, Liu H L, Shen Y. Laboratory tests on shear strength properties of soil polluted by acid and alkali[J]. Chinese Journal of Geotechnical Engineering,2011,33(7):1146-1152.
[11] Fan C C, Su C F. Role of roots in the shear strength of root-reinforced soils with high moisture content[J]. Ecological Engineering, 2008,33(2):157-166.
[12] Vega J A, Fernández C, Fonturbel T. Throughfall, runoff and soil erosion after prescribed burning in gorse shrubland in Galicia(NW Spain)[J].Land Degradation & Development, 2005,16(1):37-51.
[13] 王丽,千葉喬三.山地林火烧迹地水土流失动态变化的研究[J].水土保持研究,2007,14(6):43-46.
Wang L, Qian Y Q S. Research on the dynamic analysis of soil and water losses in the burned area of forest field[J]. Research of Soil and Water Conservation,2007,14(6):43-46.
[14] Bolan N S, Adriano D C, Kunhikrishnan A, et al. Dissolved organic matter: Biogeochemistry, dynamics, and environmental significance in soils[J]. Advances in Agronomy, 2011,110:1-75.
[15] 胡卸文,王严,杨瀛.火后泥石流成灾特点及研究现状[J].工程地质学报,2018,26(6):1562-1573.
Hu X W, Wang Y, Yang Y. Research actuality and evolution mechanism of post fire debris flow[J]. Journal of Engineering Geology,2018,26(6):1562-1573.
[16] 宋鹏帅,王健,陈琳,等.模拟干湿交替对夯实土壤抗剪强度的影响[J].水土保持研究,2021,28(2):74-79.
Song P S, Wang J, Chen L, et al. Effect of wet-dry cycle on shear strength of compacted soil[J]. Research of Soil and Water Conservation,2021,28(2):74-79.
[17] 于振江,胡卸文,曹希超.火烧迹地土壤斥水特性研究及其对火后泥石流诱发机理[J].地质灾害与环境保护,2020,31(2):93-99.
Yu Z J, Hu X W, Cao X C. Research on the soil water repellency in burned area and its inducing effect on debris post-fire debris flow[J]. Journal of Geological Hazards and Environment Preservation,2020,31(2):93-99.
[18] 胡卸文,侯羿腾,王严,等.火烧迹地土壤根系特征及其对抗剪强度的影响[J].水文地质工程地质,2019,46(5):106-112.
Hu X W, Hou Y T, Wang Y, et al. Root characteristics and its influences on shear strength in burned areas[J].Hydrogeology & Engineering Geology,2019,46(5):106-112.
[19] 张敏,马鸿伟,王希才.林火对土壤细根系生物量影响的研究[J].林业科技,2003,28(2):30-33.
Zhang M, Ma H W, Wang X C. Effect of forest fire on fine root in soil[J]. Forestry Science & Technology,2003,28(2):30-33.
[20] 向泽宇,陈瑞芳,蒋忠荣,等.川西北高寒草甸对火烧干扰的短期响应[J].草业科学,2014,31(11):2034-2041.
Xiang Z Y, Chen R F, Jiang Z R, et al. The short-term responses of alpine meadow to fire disturbance in Northwest Sichuan[J]. Pratacultural Science,2014,31(11):2034-2041.
[21] Ryu S R, Concilio A, Chen J, et al. Prescribed burning and mechanical thinning effects on belowground conditions and soil respiration in a mixed-conifer forest, California[J]. Forest Ecology & Management, 2009,257(4):1324-1332.
[22] 王瑞,兰恒星,刘世杰,等.森林火灾对岩土体物理力学特性的影响[J].地球科学与环境学报,2022,44(1):114-123.
Wang R, Lan H X, Liu S J, et al. Influence of forest fire on physical and mechanical properties of rock and soil[J]. Journal of Earth Sciences and Environment,2022,44(1):114-123.
[23] 李聪会,朱首军,陈云明,等.黄土丘陵区牧草篱对坡耕地土壤抗侵蚀性的影响[J].西北林学院学报,2013,28(5):41-46.
Li C H, Zhu S J, Chen Y M, et al. Effects of forage hedgerows on soil erosion resistance of sloping land in loess hilly areas[J]. Journal of Northwest Forestry University,2013,28(5):41-46.
[24] Sadek M A, Ying C, Liu J. Simulating shear behavior of a sandy soil under different soil conditions[J]. Journal of Terramechanics, 2011,48(6):451-458.
[25] 罗斯生,罗碧珍,魏书精,等.森林火灾对马尾松次生林土壤理化性质的影响[J].生态环境学报,2020,29(11):2141-2152.
Luo S S, Luo B Z, Wei S J, et al. Effects of forest fires on foil physical and chemical properties in secondary forest of Pinus massoniana[J]. Ecology and Environmental Sciences,2020,29(11):2141-2152.
[26] 朱龙祥,范昊明,郭成久,等.冻融作用对原状棕壤抗剪强度的影响[J].水土保持学报,2021,35(2):55-60.
Zhu L X, Fan H M, Guo C J, et al. Effect of freeze-thaw cycles on shear strength of undisturbed brown soil[J]. Journal of Soil and Water Conservation,2021,35(2):55-60.
[27] 刘新荣,袁文,傅晏,等.酸碱环境干湿循环作用下砂岩抗剪强度劣化规律研究[J].岩土工程学报,2017,39(12):2320-2326.
Liu X R, Yuan W, Fu Y, et al. Deterioration rules of shear strength in sandstones under wetting and drying cycles in acid and alkali environment[J]. Chinese Journal of Geotechnical Engineering,2017,39(12):2320-2326.
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Last Update:
2023-10-10