环市路是广州市重要主干道路,其道路绿化的安全性是城市绿化管理工作的的重要内容之一。采用视觉评估法(Visual Tree Assessment,VTA)以及无损检测法对环市路行道树树木风险进行综合评估,并分析树木形态因子与风险因子间的相关性。结果...环市路是广州市重要主干道路,其道路绿化的安全性是城市绿化管理工作的的重要内容之一。采用视觉评估法(Visual Tree Assessment,VTA)以及无损检测法对环市路行道树树木风险进行综合评估,并分析树木形态因子与风险因子间的相关性。结果发现,环市路11.2%的行道树存在安全风险,不同树种的安全隐患率差异较大,且树木形态因子与风险因子间存在显著的相关性。并从树木安全风险评估与管理角度探讨行道树种植设计、施工及日常管养,推动城市绿化精细化管理。展开更多
结合树木生理学相关原理,评估广州市3所大学校园内南洋楹Falcataria moluccana、非洲楝Khaya senegalensis以及白兰Michelia alba 3个速生树种截干后的生长特点,探讨截干对大树生理及形态的影响。结果显示,截干破坏树体结构,制造难以愈...结合树木生理学相关原理,评估广州市3所大学校园内南洋楹Falcataria moluccana、非洲楝Khaya senegalensis以及白兰Michelia alba 3个速生树种截干后的生长特点,探讨截干对大树生理及形态的影响。结果显示,截干破坏树体结构,制造难以愈合的大型截口,导致根系衰弱,严重影响树木健康,并不能减少危险性树木的安全隐患。对于体量较大的危险性树木,应当采取恰当措施降低树木风险,必要时予以移除。展开更多
Insecurity and asymmetry in all their ramifications are ideological. They are also inherently communicative processes that are largely constructed and enacted through language in various institutional discourses. In U...Insecurity and asymmetry in all their ramifications are ideological. They are also inherently communicative processes that are largely constructed and enacted through language in various institutional discourses. In Urhobo, sex proverbs copiously couch the ideological conceptualizations of the male-female biological asymmetry. Studies on Urhobo proverbs dwell largely on functional applications and documentations of the proverbs, thereby overlooking their ideological underpinnings. Therefore, in this paper, efforts are geared toward investigating and unravelling ideologies that have been habitualized in the semantic and pragmatic structures of the Urhobo sex proverbs. The intention is to throw open the patterns of relationship between the male and female participants in the society in relation to sex matters and power. Twenty-six Urhobo indigenes （six males and 20 females）, who are competent in the socioculture and language were successfully interviewed to elicit Urhobo sex proverbs. Proverbs that contain the following lexical items： penis, virgina, to make love, or to have sex are purposively selected and subjected to CDA （critical discourse analysis）. The main assumption of CDA is that language is both the site and the stake in the struggle for power and domination. Findings show that in the Urhobo sex proverbs, there is asymmetry in access to sexual relations between the male and female. Although the sex proverbs do not always refer to copulation, they are often employed as powerful instruments to dominate and instil fear in the female participant. Consequently, patriarchal discourses are further entrenched in the society展开更多
文摘环市路是广州市重要主干道路,其道路绿化的安全性是城市绿化管理工作的的重要内容之一。采用视觉评估法(Visual Tree Assessment,VTA)以及无损检测法对环市路行道树树木风险进行综合评估,并分析树木形态因子与风险因子间的相关性。结果发现,环市路11.2%的行道树存在安全风险,不同树种的安全隐患率差异较大,且树木形态因子与风险因子间存在显著的相关性。并从树木安全风险评估与管理角度探讨行道树种植设计、施工及日常管养,推动城市绿化精细化管理。
文摘结合树木生理学相关原理,评估广州市3所大学校园内南洋楹Falcataria moluccana、非洲楝Khaya senegalensis以及白兰Michelia alba 3个速生树种截干后的生长特点,探讨截干对大树生理及形态的影响。结果显示,截干破坏树体结构,制造难以愈合的大型截口,导致根系衰弱,严重影响树木健康,并不能减少危险性树木的安全隐患。对于体量较大的危险性树木,应当采取恰当措施降低树木风险,必要时予以移除。
文摘Insecurity and asymmetry in all their ramifications are ideological. They are also inherently communicative processes that are largely constructed and enacted through language in various institutional discourses. In Urhobo, sex proverbs copiously couch the ideological conceptualizations of the male-female biological asymmetry. Studies on Urhobo proverbs dwell largely on functional applications and documentations of the proverbs, thereby overlooking their ideological underpinnings. Therefore, in this paper, efforts are geared toward investigating and unravelling ideologies that have been habitualized in the semantic and pragmatic structures of the Urhobo sex proverbs. The intention is to throw open the patterns of relationship between the male and female participants in the society in relation to sex matters and power. Twenty-six Urhobo indigenes （six males and 20 females）, who are competent in the socioculture and language were successfully interviewed to elicit Urhobo sex proverbs. Proverbs that contain the following lexical items： penis, virgina, to make love, or to have sex are purposively selected and subjected to CDA （critical discourse analysis）. The main assumption of CDA is that language is both the site and the stake in the struggle for power and domination. Findings show that in the Urhobo sex proverbs, there is asymmetry in access to sexual relations between the male and female. Although the sex proverbs do not always refer to copulation, they are often employed as powerful instruments to dominate and instil fear in the female participant. Consequently, patriarchal discourses are further entrenched in the society
