EFFECT OF TREE DENSITY ON SOIL WATER USE EFFICIENCY IN AGROFORESTRY SYSTEM
| Autor: | Md. Golam Rakkibu |
|---|---|
| Rok vydání: | 1999 |
| Zdroj: | Khulna University Studies. :97-101 |
| ISSN: | 2789-2697 1563-0897 |
| DOI: | 10.53808/kus.1999.1.1.97-101-ls |
| Popis: | Sapflow of individual trees of red alder (Alnus rubra) was measured at two stem densities over three blocks in a silvopastoral agroforestry experiment at Bangor, UK in 1998 where trees were planted at densities of 400 stems/ha (agroforestry) and 2500 stems/ha (forestry control). Sapflow rate was measured using the Thermal Dissipation Probe (TDP) in two trees in each treatment. Tree sapflow were related to the stand density (stems/ha). Planting density was found to modify individual tree sapflow. During the experiment, mean sapflow per tree was found to be lower at high tree densities being 0.29 dm-2 h-1 compared to 0.44 dm -2 h-1 at low densities and the difference was highly significant (p = 0.001). The higher sapflow in agroforestry was related to a high rate of crown transpiration caused by greater canopy exposure. |
| Databáze: | OpenAIRE |
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