[1]CHANG Dan-dong.The Relationship between the Plant Root Distribution and Priority Flow Paths of the Broad-Leaved Forest in Three-Gorges Area[J].Research of Soil and Water Conservation,2014,21(06):41-46.
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The Relationship between the Plant Root Distribution and Priority Flow Paths of the Broad-Leaved Forest in Three-Gorges Area
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 06
Page number:
41-46
Column:
Public date:
2014-12-28
- Title:
- The Relationship between the Plant Root Distribution and Priority Flow Paths of the Broad-Leaved Forest in Three-Gorges Area
- CLC:
- S714
- DOI:
- -
- Abstract:
- The study on priority flow paths is an important topic on the underground water movement research. In this paper, the bright blue dyeing tracer test method was used to directly observe and distinguish woodland soil substrate and soil priority path, respectively, and analyze the soil priority flow paths, the root length density and root weight density of the plant in the roots, the formation of the priority flow paths and the referential flow in soil process. The results showed that the more rainfall intensity was, the surface of the priority flow paths dyeing presented the bigger obvious wide area gathered distribution. When the rainfall was 25 mm/d, the average gathered distribution thickness of large area in sample soil dyeing area was 50 cm. It also showed that the root long density of roots > 5 mm affected the soil pore size significantly, and the root long density of roots < 5 mm affected the soil pore linkage obviously. In addition, the value of root weight density of plant in soil was closely related to the quantity and the linkage degree of priority flow paths. The more value of root weight density is, the more preferred priority flow paths formatted, and more preferred priority flow formatted. The root weight density of plant presented very significant difference in 10—20 cm and 30—40 cm soil depth in the different two regions (P < 0.05), the priority flow paths suddenly decreased in the depth of 30 cm. It is a new method for study of the priority flow paths.
- References:
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[1] Mallants D, Mohanty B P, Vervoort A, et al. Spatial analysis of saturated hydraulic conductivity in a soil with macropores[J]. Soil Technology,1997,10(2):115-131.
[2] 雷志栋,胡和平,杨诗秀.土壤水研究进展与评述[J].水科学进展,1999,10(3):311-318.
[3] Peters D L, Buttle J M, Taylor C H, et al. Runoff production in a forested, shallow soil, Canadian Shield basin[J]. Water Resources Research, 1995,31(5):1291-1304.
[4] Farenhors A, Topp E, Bowman B T, et al. Earthworm burrowing and feeding activity and the potential for atrazine transport by preferential flow[J]. Soil Biology and Biochemistry,2000(32):479-488.
[5] Hu G X, Xu W, Liu Y Q. Heat transfer and tas flow through feed stream within horizontal pipe[J]. Transport in Porous Media,2003(52):371-387.
[6] 程云,张洪江,史玉虎,等.长江三峡花岗岩坡面土管空间分布特征[J].北京林业大学学报,2001,23(5):19-22.
[7] Helling C S, Gish T J. Physical and chemical processes affecting preferential flow[J].American Society of Agricultural Engineering,1991(77):50-63.
[8] Li Jing, Chang Dandong, Zhang Hongjiang, et al. Evaluation of soil and water conservation capacities for plantations on the Simian Mountains of China[J]. The Forestry Chronicle,2013,89(2):178-183.
[9] 董慧霞,李贤伟,张健,等.退耕地三倍体毛白杨林地细根生物量及其与土壤水稳性团聚体的关系[J].林业科学,2007,43(5):24-29.
[10] 丁文峰,丁登山.黄土高原植被破坏前后土壤团粒结构分形特征[J].地理研究,2002,88(6):700-706.
[11] 秦嘉海,赵芸晨.苜蓿草对河西走廊荒漠化土壤改土培肥效应的研究[J].土壤通报,2004,(6):804-808.
[12] 王大力,尹澄清.植物根孔在土壤生态系统中的功能[J].生态学报,2000,20(5):869-874.
[13] 张洪江,程云,史玉虎,等.长江三峡花岗岩坡面管流产流特性研究[J].水土保持学报,2001,15(1):5-8.
[14] Zhang Hongjiang, Shi Yuhu, Cheng Yun, et al. Movement properties of the pipe flow along granite slope of the Three Gorges Area on Yangtze River in China[J]. Forestry Studies in China,2002,4(1):35-43.
[15] Lesturgez G, Poss R, Hartmann C, et al. Roots of Stylosanthes hamata create macropores in the compact layer of a sandy soil[J].Plant and Soil.2004,260(1):101-109.
[16] 张洪江,程云,史玉虎,等.长江三峡花岗岩坡面林地土管特性及其对管流的影响[J].长江流域资源与环境,2003,12(1):55-60.
[17] 程金花,张洪江,史玉虎.三峡库区花岗岩林地土壤特性与"优先路径"的关系[J].中国水土保持科学,2005,9(1):97-101.
[18] 张洪江,王玉杰,北原曜,等.长江三峡花岗岩坡面管流试验研究[J].北京林业大学学报,2000,22(5):53-57.
[19] 梅莉,王政权,韩有志,等.水曲柳根系生物量、比根长和根长密度的分布格局[J].应用生态学报,2006,17(1):1-4.
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