樹木害蟲 的英文怎麼說
中文拼音 [shùmùhàichóng]
樹木害蟲
英文
tree insect pest-
The avian activity also changes the chemical " flavor " of the trees by boosting terpenes ? chemicals found to repel tree - eating pests such as bark beetles as well as porcupines and squirrels
鳥類活動還會刺激樹木產生松烯，改變樹木的化學味道這種化學物質已知可以驅除啃食樹木的害蟲，如樹皮小蠹，以及豪豬、松鼠等。Age of the trees have influence on the composition, the number of dominant species and damage degree of insect pest community
樹木年齡可影響害蟲群落的組成、優勢種數量及危害程度。Scientists have long thought that the bright colors of autumn foliage were just the by - product of how leaves age when they cease photosynthesis, but hagen and his colleagues report that the earlier and the more trees changed color, the less damage from chewing occurred the following season
長久以來，科學家都認為秋天鮮?的樹葉顏色，不過是葉子老化、不再行光合作用后的副產品罷了；然而哈根及同事的報告卻指出，如果樹木變色的時間越早、數量越多，下一季受到蟲咬的傷害就越低。Tests in korean pine seed stands in linkou forest bureau have approved that prescribed burning is an effective measure for the prevention of forest fires and the safety of korean pine seed stands, as well as for the control of forest diseases and insects and the promotion of the tree growth
林口林業局通過對紅松母樹林下的細小可燃物進行計劃燒除實驗，證明這種方法不但是預防森林火災、保證紅松母樹林安全的有效措施，而且還可消除森林病害蟲和增加林木生長量。" in a nutshell … the presence of these birds in pine forests increased the growth of the trees by helping to rid them of damaging insects, " said kailen mooney, an evolutionary biologist at the university of colorado at boulder
簡而言之… …松林里有鳥兒存在，可增加樹木的生長，因為鳥兒幫樹木除掉有害昆蟲，柏德市科羅拉多大學演化生物學家穆尼表示。Firewood and cleanup : standing trees, dead or alive, are home to birds and insects, so leave them intact
生火取材和事後清理：直立的樹木，無論生還是死，都是鳥類和昆蟲的家，所以不要去損害它。Divided into geographic regions, the zoos 710 acres feature more than 5, 000 animals in their natural environments. its new africa savanna exhibit includes a 32 - acre walking safari through the wild lands of east africa
這座雕塑算不上美觀，可能藝術家們是因啄木鳥消滅樹木害蟲，保護森林有功加拿大是世界上最大的木材出口國，為它們樹個碑吧。Result shows that the main reason for serious occurrence of pest and disease on street afforestation trees is the deteriorating of the physic - chemical and biological properties of soil
結果表明：土壤物理、化學、生物學性質的惡化是長春市街路樹木病蟲害嚴重發生的主要原因。分享友人