[1]LIU Ming-hu,ZHANG Jing-bo,SUN Fei,et al.Study on Moisture Effects and Ecological Water Consumption of Poplar Stands under Different Water Supply in Arid Area[J].Research of Soil and Water Conservation,2012,19(06):58-63.
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Study on Moisture Effects and Ecological Water Consumption of Poplar Stands under Different Water Supply in Arid Area
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 06
Page number:
58-63
Column:
Public date:
2012-12-20
- Title:
- Study on Moisture Effects and Ecological Water Consumption of Poplar Stands under Different Water Supply in Arid Area
- CLC:
- S714.2;S715
- DOI:
- -
- Abstract:
- Water is the main limiting factor for forest growth in arid region. Scientific determination of reasonable water supply is the key to achieve the fast-growth and high-yield of forest trees. Populus popular’s of Ulan Buh sandy area was selected as the study object to explore the relationship between the different water supplies and soil environment, growth indications of Populus popular’s.The result showed as follows: there were significantly differences of humidification effect of soil between different water supply amounts. Water supply layer mainly occurred in soil layer of 0-50cm with water addition of 1500m3/(hm2·a) and 3000 m3/(hm2·a), whereas it occurred in soil layer of 0-70cm with the water supply rates of 4 500, 6 000 and 7 500 m3/(hm2·a). Soil moisture differences of each month between the different treatments were decreasing with the increase of water supply. Water consumption has been increasing year by year with increase of the stand age under the same water supply rate. Soil water storage, soil available water, field capacity, ecological water consumption, leaf fresh weight, transpiration rate and the optimum moisture content index increased with the increase of the water supply quantity. Soil temperature decreased with the increases of water supply quantity, and drop range of temperature was between 0.31 and 1.24℃.
- References:
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Last Update:
1900-01-01