tree-凯发k8官网

13-11-14 it's a foggy fall morning, and university of washington researcher susan dickerson-lange pokes her index finger into the damp soil beneath a canopy（遮盖） of second-growth conifers（松柏类） . the tree cover is dense here, and little light seeps in...

13-10-30 a walnut-tree, which grew by the roadside, bore a plentiful crop of nuts every year. every one who passed by pelted（攻击或投掷） its branches with sticks and stones, in order to bring down the fruit, and the tree suffered severely. it is hard, it c...

13-10-24 once upon a time, there was a giant tree in the forest. many many birds lived in this tree. and the wisest of them was their leader. one day the leader bird saw two branches rubbing against each other. they were making wood powder come falling down....

13-10-19 the newly discovered dragon tree species dracaena kaweesakii from thailand is characterized by its extensive branching. the new species reaches an impressive 12m in both height and crown diameter, and has beautiful soft sword-shaped leaves with whit...

13-09-21 calcium can do much more than strengthen bones. the mineral is a critical nutrient for healthy tree growth, and new research shows that adding it to the soil helps reverse the decades-long decline of forests ailing（生病，苦恼） from the effects of...

13-09-16 two travellers were walking along a bare and dusty road in the heat of a summer's day. coming presently to a plane-tree, they joyfully turned aside to shelter from the burning rays of the sun in the keep shade of its spreading branches. as they rest...

13-09-05 once on a time a countryman had a son who was as big as a thumb, and did not become any bigger, and during several years did not grow one hair's breadth. once when the father was going out to plough, the little one said, father, i will go out with y...

13-08-08 a countryman was once going out to plough with a pair of oxen. when he got to the field, both the animals' horns began to grow, and went on growing, and when he wanted to go home they were so big that the oxen could not get through the gateway for t...

13-08-06 chronic harvesting of a tropical tree that many local communities in western africa depend on can alter the tree's reproduction and drastically curtail（缩减） fruit and seed yields over the tree's lifetime, according to a new study. the study, whic...

13-07-12 in the time of schlauraffen i went there, and saw rome and the lateran hanging by a small silken thread, and a man without feet who outran a swift horse, and a keen sharp sword that cut through a bridge. there i saw a young ass with a silver nose wh...