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《Acta Ecologica Sinica》 2009-02
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Capability of canopy interception of turfgrass (Zoysia sinica Hance)

ZHUO Li1,SU De-Rong1,LIU Zi-Xue2,REN Yun-Yu2,LIU Yi-Shan2 1 The Key Laboratory of Silviculture and Conservation of Ministry of Education,Beijing Forestry University,Beijing 100083,China2 Beijing Clover Seed & Turf CO.,Beijing 100029,China  
Rainfall interception by the canopy of turfgrass(Zoysia sinica Hance)has important effect on water use efficiency.In this paper,the capability of canopy interception for the individual and population grass was measured by using wet-Absorption method.The result showed that both leaf number and leaf area had remarkably effect on the interception for the individual and population grass.The interception increased with the leaf number,the weight of intercepted rainwater with five leaves was 0.16g,which was almost 81.22% of fresh weight of leaves,while with three leaves that was only half of five leaves.The interception increased with leaf area.For the population of turfgrass,the interception reached to 1.05mm for 14cm mowing height,while the 6cm height was only 0.48 mm.For the same mowing height,the interception varied from different turf established years,three-year turfgrass could intercept much more water than one year,three-year turfgrass was 0.48mm for 6cm height,while one year turfgrass was 0.38mm.The difference between growth years was significant with increased mowing height,the maximum difference can be up to 0.44mm.
【Fund】: 国家自然科学基金资助项目(50679002)
【CateGory Index】: S688.4
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