有哪些信誉好的足球投注网站- 1、本文档共6页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
查看更多
城绿化树种的滞尘效应)))以哈尔滨为例
2002 9 13 9
CHINESE JOURNAL OF APPLIED ECOLOGY, Sept . 2002, 13( 9)B 1121~ 1126
) ) ) *
* *
柴一新 祝 宁 韩焕金 (, 150040)
= , 28
, , , 2~ 3 .
, , 4 5. 7 4. 4g#m- 2 . ,
, 1. 92. 0 2.45g# m- 2.
, , ,
.
1001- 9332(2002) 09- 1121- 06 X173 A
Dust removal effect of urban tree species in Harbin. CHAI Yixin, ZHU Ning, HAN H anjin ( Northeast
Forestry University ,Harbin 150040) .2Chin. J . Appl . Ecol. , 2002, 13( 9) : 112 1~ 1126.
D st removal by plants was proposed as an important basis of designing rban green space system for f tr e r2
banization. D st removal meas rement and leaf s rface elect ron2microscopic scanning were taken for 28 tree
species in Harbin city. The res lts showed that there were obvio sly different effects of d st removal among dif2
ferent tree species. Picea koraiensis and Juniperus rigida were the ideal conifers for d st removal, and their d st
removal abilities were 51 7 g# m- 2 and 41 4 g# m- 2 after 4 weeks, respectively. Populus alba @ berolinensis,
onicera maackii, and Prunus maackii were the ideal decid o s tree species, and t heir d st removal abilities
were respectively 119 g#m- 2 , 210 g#m- 2 , and 21 45 g#m- 2 after 2 weeks. Observation nder electronic micro2
scope showed that tree species,having deep channels or dense hair on leaf s rface had greater effects of d st re2
moval,while tree species,which had str mose project ions on leaf s rface, had weaker effects. Different modes of
d st removal by plants were also disc ssed.
Key words Urban tree specie, D st removal, Leaf str ct re.
,
1
文档评论（0）