|
|
|
Plant roots and anti-scourability of soils in
the Shangshe Catchment, Dabie Mountains, Anhui Province, Eastern China |
| Jiayao ZHUANG 1, Jinchi ZHANG 1, Bo ZHANG 1, Hongyan LUO 1, Xiaying HUANG 1, Jun FU 2, |
| 1.College of Forest Resources
and Environment, Nanjing Forestry University, Nanjing 210037, China; 2.Anhui Forestry Department,
Hefei 230001, China; |
|
|
|
|
Abstract The distribution of root biomass was studied in different soil layers (0―10, 10―20, 20―30, 30―40?cm) by means of a “study plot” method for various plant species in the Shangshe Catchment area in the Dabie Mountains, Anhui Province. The number and lengths of root samples were recorded. In each study plot, anti-scourability of soils in corresponding soil layers was measured with a C.C. Suoboliefu anti-scourability instrument. The results showed the following: 1) The root system was largely distributed in the 0―40?cm soil layer and the number of roots was the largest in the surface soil layer. Fine roots <1?mm in diameter predominated in root length. 2) In the same section, the anti-scourability indices of the surface soil layer were larger than those of other soil layers in the various plant species. The tree root system, especially the fine roots <1?mm in diameter, are highly instrumental in controlling soil losses. Correlation coefficients of length, number and density of fine roots and the anti-scourability index were 0.8173, 0.7159 and 0.6434, respectively. The length of fine root is a key factor in the anti-scourability soil index. This index is closely correlated with the non-capillarity of each soil type, indicating that forests have a strong soil stabilizing function, because their root systems improve physical soil properties and ultimately are responsible for the establishment of a bio-soil system with an anti-scourability index.
|
| Keywords
Shangshe Catchment
root system
soil anti-scourability index
|
|
Issue Date: 05 September 2009
|
|
|
Cheng G W(1999). Causes of the 1998 Yangtze flood and strategy for damagecontrol. Scientific Strategy and Floodin the Yangtze Basin. Beijing (in Chinese)
|
|
Ding J, Wang Z Q, Chen X(2002). Study on increased effect of soilanti-courability by root system of forest land in red soil hilly region. J Soil Water Conserv, 16(4): 9―12 (in Chinese)
|
|
Jiang D S(1979). Anti-scourability of different landuse types in theLoess Plateau. Chin J Soil Sci, 4(2): 20―23 (in Chinese)
|
|
Li Y T, Ni J R(1998). Influenceof sediment transport to water level elevating in the middle reachof Yangtze River. J Basic Sci Engin, 6(3): 215―221 (in Chinese)
|
|
Li Y, Xu X Q, Zhu X M, Tian J T(1993). Plant roots and soil anti-scourability. J Soil Water Conserv, 7(3): 11―18 (in Chinese)
|
|
Ruan F S, Wu X H(2002). A reviewon the indexes of soil erodibility. BullSoil Water Conserv, 16(4): 9―12 (in Chinese)
|
|
Wang L X, Xie M S(1998). HydrologicalEffect of Mountainous Protection Forest and Its Information Systemfor Soil Erosion Control. Bejing: China Forestry Publishing House (in Chinese)
|
|
Wischmeier W H, Smith D D(1965). Predictingrainfall erosion losses from cropland east of the Rocky Mountains:guide for selection of practices for soil and water conservation planning. USDA Agriculture Handbook 282. Washington DC: Government PrintingOffice
|
|
Wu K(1999). The characteristics and the warnings of the ChangjiangRiver in 1998. Progr Geogr, 18(1): 21―25 (in Chinese)
|
|
Wu W D, Liao C H, Liu K S(1994). A study on the soil deteriorationof the first generationof artificial fir plantation in Jiangxi Province. Res Soil Water Conserv, 1(5): 64―69 (in Chinese)
|
|
Yu G M, Shi H S(1991). Positionand Function of the Protection Forest in the Dabie Mountains of AnhuiProvince. Beijing: China Forestry Publishing House (in Chinese)
|
|
Zeng X B(1995). Study on plant roots intensification to soil anti-scourabilityin purplish soil of Guizhou. J Mount Agric, 14(2): 20―24 (in Chinese)
|
|
Zhan M, Jia H J, Wang C C(2000). The flood control function and countermeasuresof soil and water conservation. Water ConservSci Technol Econ, 6(1): 31―33 (in Chinese)
|
|
Zhang J C, Hu H B(1996). Waterand soil loss in China. Bejing: China Forestry Publishing House (in Chinese)
|
|
Zhang J C, Hu H B, Ruan H H(1999). The present situation and controlmeasures of soil and water loss in Changjiang River Valley. J Nanjing For Univ, 23(2): 17―22 (in Chinese)
|
|
Zhang J C, Kang L X, Lu Y S(1994). A study on the root system conservingsoil action of tree belton the seawall in Northern Jiangsu Province. J Soil Water Conserv, 8(2): 43―47 (in Chinese)
|
|
Zhang J C, Zhuang J Y, Su J S, Nakamura H, Ishikaw H(2008). Developmentof GIS-based FUSLE model to predict soil loss in a sub catchment ofChinese fir forest with a focus on the litter in the Dabie Mountains,China. For Ecol Manag, 255: 2782―2789
|
|
Zhou Y, David W(1998). Hydrologicaleffect of Pinus yunnanensisforeston soil erosion control in the Alpine Gorge Region. J Soil Water Conserv, 4(3): 31―39 (in Chinese)
|
|
Zhu X M(1982). Main types and relevant factors of water erosion inthe Loess Plateau. Bull Soil Water Conserv, 3(1): 40―44 (in Chinese)
|
|
Zhuang J Y, Nakamura H, Zhang J C(2004). GIS-based semi-distributed sedimentdischarge model with a focus on the influence of land use in the Shangshecatchment. J Jpn Soc Eros Contr Eng, 57(3): 14―22
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
