Page 17 - Ebook cây cảnh Art of Bonsai
P. 17

Where trees get their energy
        Leaves use sunlight to
        help convert carbon                                                      oxygen is released
        dioxide and water into                                                   by the leaves into
        energy-giving                                                            the atmosphere
        sugars through
        photosynthesis














                                                                                       The energy (sugar) is
                                                                                       converted and used by
                                                                                       the tree to fuel growth
                     The leaves convert the sugar into starch
                     and store it until it is needed in the fall  A network of branches transports
                                                           water and nutrients to the leaves
















           Carbon dioxide and
           waste products are
           returned to the soil
           via the roots                                                                  Roots store energy
                                                                                          (starch) for the tree
                                                                                          over the winter

                    Well-developed root system
                    mirrors the structure of                                Oxygen, water, and
                    branches in the tree canopy                             minerals are absorbed
                                                                            from surrounding soil
                                                    Tree roots extend deep into
                                                    the ground to anchor it
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