[1]GAO Zhou,HU Xia.Influence of Shrub Roots on Soil Macropores Using X-Ray Computed Tomography[J].Research of Soil and Water Conservation,2020,27(03):315-319.
Copy
Influence of Shrub Roots on Soil Macropores Using X-Ray Computed Tomography
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 03
Page number:
315-319
Column:
目次
Public date:
2020-04-20
- Title:
- Influence of Shrub Roots on Soil Macropores Using X-Ray Computed Tomography
- Keywords:
- shrub; root; soil macropores; CT
- CLC:
- S152.4
- DOI:
- -
- Abstract:
- To study the influence of shrub roots on soil macropores, undisturbed soil columns under shrub canopies were sampled(Potentilla fruticose shrub from Qinghai Lake Basin and Caragana microphylla shrub from Inner Mongolia)and scanned with X-ray computed tomography. Then 3 D soil macropores and root architecture were visualized and quantitated with Avizo software. The results showed that roots and macropores under Potentilla fruticose shrub mainly distributed in the 0—25 cm soil layer. In addition, independent macropores were found much more prevalent, which resulted in a less similarity with the roots compared with Caragana microphylla shrub. By contrast, roots and macropores under Caragana microphylla shrub distributed in the 0—50 cm soil layer. Macropores in the surface layer were concentrated and disorderly, while macropores in subsoil had a good connectivity and high similarity with the root architecture. The roots of Caragana microphylla shrub in Inner Mongolia had a greater influence on the formation of soil macropores, while the roots of Potentilla fruticose shrub in Qinghai Lake Basin had a relatively smaller impact on soil macropores. Therefore, the influence of shrub roots on macropores varies in different environments.
- References:
-
[1] Katuwal S, Norgaard T, Moldrup P, et al. Linking air and water transport in intact soils to macropore characteristics inferred from X-ray computed tomography[J]. Geoderma, 2015,237:9-20.
[2] Isensee A R, Helling C S, Gish T J, et al. Groundwater residues of atrazine, alachlor, and cyanazine under no-tillage practices[J]. Chemosphere, 1988,17(1):165-174.
[3] 刘伟,区自清,应佩峰.土壤大孔隙及其研究方法[J].应用生态学报,2001,12(3):465-468.
[4] 周虎,李文昭,张中彬,等.利用X射线CT研究多尺度土壤结构[J].土壤学报,2013,50(6):1226-1230.
[5] 胡会峰,王志恒,刘国华,等.中国主要灌丛植被碳储量[J].植物生态学报,2006(4):5-10.
[6] Johnson M S, Lehmann J. Double-funneling of trees:Stemflow and root-induced preferential flow[J]. Ecoscience, 2006,13(3):324-333.
[7] Levia Jr D F, Frost E E. A review and evaluation of stemflow literature in the hydrologic and biogeochemical cycles of forested and agricultural ecosystems[J]. Journal of Hydrology, 2003,274(1/4):1-29.
[8] Li X Y, Yang Z P, Li Y T, et al. Connecting ecohydrology and hydropedology in desert shrubs:stemflow as a source of preferential flow in soils[J]. Hydrology and Earth System Sciences, 2009,13(7):1133-1144.
[9] Li X Y, Zhang S Y, Peng H Y, et al. Soil water and temperature dynamics in shrub-encroached grasslands and climatic implications:results from Inner Mongolia steppe ecosystem of north China[J]. Agricultural and Forest Meteorology, 2013,171:20-30.
[10] 彭海英,李小雁,童绍玉.干旱半干旱区草原灌丛化研究进展[J].草业学报,2014,23(2):313-322.
[11] Li X Y, Hu X, Zhang Z H, et al. Shrub hydropedology:preferential water availability to deep soil layer[J]. Vadose Zone Journal, 2013,12(4), DOI:10,2136/vzj2013.01,0006.
[12] Hu X, Li X Y, Guo L L, et al. Influence of shrub roots on soil macropores using X-ray computed tomography in a shrub-encroached grassland in Northern China[J]. Journal of Soils and Sediments, 2019,19(4):1970-1980.
[13] Elmendorf S C, Henry G H R, Hollister R D, et al. Global assessment of experimental climate warming on tundra vegetation:heterogeneity over space and time[J]. Ecology Letters, 2012,15(2):164-175.
[14] 李宗超,胡霞.小叶锦鸡儿灌丛化对退化沙质草地土壤孔隙特征的影响[J].土壤学报,2015,52(1):242-248.
[15] Li Z, Hu X, Li X. Characterization of root architectures and soil macropore networks under different ecosystems using X-ray CT scanning in the Qinghai Lake Watershed, NE Qinghai-Tibet Plateau[J]. Journal of Soil Science and Plant Nutrition, 2019,19(4):743-757.
[16] Gao Z, Niu F, Wang Y, et al. Root-induced changes to soil water retention in permafrost regions of the Qinghai-Tibet Plateau, China[J]. Journal of Soils and Sediments, 2018,18(3):791-803.
[17] Pierret A, Doussan C, Capowiez Y, et al. Root functional architecture:a framework for modeling the interplay between roots and soil[J]. Vadose Zone Journal, 2007,6(2):269-281.
[18] Kuka K, Illerhaus B, Fox C A, et al. X-ray computed microtomography for the study of the soil-root relationship in grassland soils[J]. Vadose Zone Journal, 2013,12(4), DOI:10,2136/vzj2013.01,0014.
[19] Jarvis N J. A review of non-equilibrium water flow and solute transport in soil macropores:Principles, controlling factors and consequences for water quality[J]. European Journal of Soil Science, 2007,58(3):523-546.
[20] Larsbo M, Koestel J, Kätterer T, et al. Preferential transport in macropores is reduced by soil organic carbon[J]. Vadose Zone Journal, 2016,15(9), DOI:10,2136/vzj2016.03,0021.
- Similar References:
Memo
-
Last Update:
2020-04-30