鸟类在混农林中能更好地生存繁衍-凯发k8官网

鸟类在混农林中能更好地生存繁衍
文章来源:未知 文章作者:enread 发布时间:2012-08-08 06:15 字体: [ ] 
(单词翻译:双击或拖选)
compared with open farmland, wooded "shade" 1(种植园) that produce coffee and chocolate promote greater bird diversity, although a new university of utah study says forests remain the best habitat for tropical birds. the findings suggest that as open farmland replaces forests and "agroforests" -- where crops are grown under trees -- reduced number of bird species and shifts in the populations of various types of birds may hurt "2 services" that birds provide to people, such as eating insect pests, spreading seeds and pollinating(授粉) crops.
 
"we found that agroforests are better overall for bird biodiversity in the tropics than open farms," says study author çağan h. şekercioğlu (pronounced cha-awn shay-care-gee-oh-loo), an assistant professor of biology at the university of utah.
 
"this doesn't mean people should farm in intact forests," the 3(鸟类学者) adds. "but if you have the option of having agroforest 4 open farmland, that is better for biodiversity, with shade coffee and shade cacao [the source of cocoa and chocolate] being the prime examples."
 
şekercioğlu's new study, funded by the university of utah, is being published this month in the journal of 5. he will present the findings on aug. 9, at the 6 society of america's annual meeting in portland, ore.
 
if consumers wish to support bird diversity and agroforests, "a good way is by choosing 7, bird-friendly, shade coffee or shade chocolate," he says. while such coffee or chocolate often cost more because they are more labor-intensive to produce, the certification "is usually better for the farmers' income as well."
 
he adds: "there are trustworthy environmental organizations that 8 shade coffee," including the smithsonian institution, the rainforest alliance and the rainforest action network.
 
other crops grown in shade include cardamom(小豆蔻), which is a spice, and yerba mate(巴拉圭茶), which is steeped in(沉浸于) hot water to make a 9 popular in south america.


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1 ee6ea2c72cc24bed200cd75cf6fbf861     
n.种植园,大农场( plantation的名词复数 )
参考例句:
  • soon great plantations, supported by slave labor, made some families very wealthy. 不久之后出现了依靠奴隶劳动的大庄园,使一些家庭成了富豪。 来自英汉非文学 - 政府文件
  • winterborne's contract was completed, and the plantations were deserted. 维恩特波恩的合同完成后,那片林地变得荒废了。 来自辞典例句
2 wq4xz     
n.生态系统
参考例句:
  • this destroyed the ecosystem of the island.这样破坏了岛上的生态系统。
  • we all have an interest in maintaining the integrity of the ecosystem.维持生态系统的完整是我们共同的利益。
3 ornithologist     
n.鸟类学家
参考例句:
  • that area is an ornithologist's paradise.那个地区是鸟类学家的天堂。
  • now i know how an ornithologist feels.现在我知道做为一个鸟类学家的感受了。
4 wi7wu     
prep.以…为对手,对;与…相比之下
参考例句:
  • the big match tonight is england versus spain.今晚的大赛是英格兰对西班牙。
  • the most exciting game was harvard versus yale.最富紧张刺激的球赛是哈佛队对耶鲁队。
5 hjcxh     
n.鸟类学
参考例句:
  • he found his vocation in ornithology.他发现自己适于专攻鸟类学。
  • his main interests are botany and ornithology.他主要对植物学和鸟类学感兴趣。
6 irrxx     
adj.生态的,生态学的
参考例句:
  • the region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。
  • each animal has its ecological niche.每种动物都有自己的生态位.
7 fw5zku     
a.经证明合格的;具有证明文件的
参考例句:
  • doctors certified him as insane. 医生证明他精神失常。
  • the planes were certified airworthy. 飞机被证明适于航行。
8 toozp     
vt.证明,证实;发证书(或执照)给
参考例句:
  • i can certify to his good character.我可以证明他品德好。
  • this swimming certificate is to certify that i can swim one hundred meters.这张游泳证是用以证明我可以游100米远。
9 0qgyn     
n.(水,酒等之外的)饮料
参考例句:
  • the beverage is often colored with caramel.这种饮料常用焦糖染色。
  • beer is a beverage of the remotest time.啤酒是一种最古老的饮料。
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