[1]HUANG Mingyi,ZHU Chengli,HAN Yizhen,et al.Analysis of the Test of Vegetation Measure Factor in Sandy Area of Old Yellow River in Jiangsu Province[J].Research of Soil and Water Conservation,2017,24(01):140-144.
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Analysis of the Test of Vegetation Measure Factor in Sandy Area of Old Yellow River in Jiangsu Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 01
Page number:
140-144
Column:
Public date:
2017-02-28
- Title:
- Analysis of the Test of Vegetation Measure Factor in Sandy Area of Old Yellow River in Jiangsu Province
- Keywords:
- sandy area of old Yellow River; runoff and sediment yield; rainfall erosion power; vegetation measure factor; water and soil conversation function
- CLC:
- S157.1
- DOI:
- -
- Abstract:
- Vegetation is the main measure to control soil and water losses in sandy area of old Yellow River in Jiangsu Province. In order to evaluate the role of different vegetation measures quantitatively, we used the calculation method by sampling program of water erosion inventory in China to research the several common vegetation measure factors in sandy area through observation of runoff and sediment yield which caused by nature rainfall in runoff plots. The results showed that: (1) the runoff and sediment yield decreased in the order: bare land > abandoned land > arbor and herb land > shrub and herb land > hybrid grass > artificial grass, the influence of vegetation on soil erosion was greater, pure herbal measures had more direct effect on sediment reduction; (2) rainfall erosion power and surface coverage were the main influencing factors of vegetation measure factor, the factor value in months of the concentrated rainfall erosion power accounted for 64.52%～70.83% of the annual value, with the increase of vegetation coverage,the influence of rainfall decreased significantly, the function of plants on protecting soil increased gradually; (3) the annual B values of abandoned land, arbor and herb land, shrub and herb land, hybrid grass and artificial grass were 0.499, 0.184, 0.048, 0.266 and 0.224, respectively, which means that arbor and herb land, shrub and herb land, hybrid grass and artificial grass had powerful ability of soil conservation, and their performance indicators of soil erosion reduction were all above 70%, the indicator of artificial grass was above 90%.
- References:
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1900-01-01