| SOIL CONSERVATION EFFICIENCY OF DIFFERENT MODELS CONVERTING FROM STEEP FARMING SLOPE PLOTS IN YA'AN, SICHUAN, CHINA |
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| 作者姓名： | Yulin DENG Yan PENG Yukuan WANG and Zongting YANG Institute of Mountain Hazards and Environment Chinese Academy of Sichuan P. R. China College of Forestry and Horticulture of Sichuan Agricultural University Sichuan P. R. China. Water Resources Administration in Ya'an Sichuan P. R. China. |
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| 作者单位： | Yulin DENG，Yan PENG，Yukuan WANG and Zongting YANG Institute of Mountain Hazards and Environment，Chinese Academy of Sichuan 610041，P. R. China;
College of Forestry and Horticulture of Sichuan Agricultural University，Sichuan 625000，P. R. China. Water Resources Administration in Ya'an，Sichuan 625000，P. R. China. |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | Converting farming slope land into artificial forestland or grassland is a major measure of soil/water conservation. Five conversion practices, namely, 1) a control plot still tilled with a crop (maize), 2) a folder grass-growing plot seeded with Lolium perenne , 3) a young alder tree-growing plot, 4) a pear orchard plot and 5)a bamboo plot intercropped with folder grass, were monitored to compare the soil conservation efficiency of those changes in Ya'an, Sichuan for 3 years between September 1998 and August 2001. Results showed that the 5 designed converting models functioned differently in erosion control. The most effective model was bamboo groves intercropped with folder grass (Lolium perenne). The folder grass (Lolium perenne) growing model was more effective than the pure pear orchard model. The least effective model was the young alder tree-growing slope, which was even less effective than the control (a slope without converted cultivation). Meanwhile, changes in the soil's physical properties r
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SOIL CONSERVATION EFFICIENCY OF DIFFERENT MODELS CONVERTING FROM STEEP FARMING SLOPE PLOTS IN YA'AN, SICHUAN, CHINA |
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| Yulin DENG,Yan PENG,Yukuan WANG and Zongting YANG Institute of Mountain Hazards and Environment,Chinese Academy of Sichuan ,P. R. China,
College of Forestry and Horticulture of Sichuan Agricultural University,Sichuan ,P. R. China. Water Resources Administration in Ya''''an,Sichuan ,P. R. China..SOIL CONSERVATION EFFICIENCY OF DIFFERENT MODELS CONVERTING FROM STEEP FARMING SLOPE PLOTS IN YA''''AN, SICHUAN, CHINA[J].International Journal of Sediment Research,2003,18(4). |
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| Authors: | Yulin DENG Yan Peng Yukuan WANG Zongting YANG |
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| Abstract: | Converting farming slope land into artificial forestland or grassland is a major measure of soil/water conservation. Five conversion practices, namely, 1) a control plot still tilled with a crop (maize), 2) a folder grass-growing plot seeded with Lolium perenne , 3) a young alder tree-growing plot, 4) a pear orchard plot and 5)a bamboo plot intercropped with folder grass, were monitored to compare the soil conservation efficiency of those changes in Ya'an, Sichuan for 3 years between September 1998 and August 2001. Results showed that the 5 designed converting models functioned differently in erosion control. The most effective model was bamboo groves intercropped with folder grass (Lolium perenne). The folder grass (Lolium perenne) growing model was more effective than the pure pear orchard model. The least effective model was the young alder tree-growing slope, which was even less effective than the control (a slope without converted cultivation). Meanwhile, changes in the soil's physical properties reflected the same results. Therefore, the optimum model for controlling watershed and slope erosion was by converting farming land into forestland or grassland. |
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| Keywords: | Soil and water conservation effect Watershed Land use Sichuan Province |
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