To figure out the disease occurrence of landscape plants in the main urban area of Lu'an City,the author investigated the disease occurrence of landscape plants in park green space,residential green space,unit att...To figure out the disease occurrence of landscape plants in the main urban area of Lu'an City,the author investigated the disease occurrence of landscape plants in park green space,residential green space,unit attached green space and main road in the area under administration.The survey results showed that there were 29 species of urban landscape plant diseases,mainly powdery mildew and spot diseases.According to the characteristics of the diseases,the causes and problems of the diseases were analyzed,and the corresponding prevention and control measures were put forward.展开更多
Through investigating wetland resources in Jinggu County, spatial distribution, type and area of wetland in Jinggu County, as well as its animal resources were fi gured out and analyzed systematically. Major threats t...Through investigating wetland resources in Jinggu County, spatial distribution, type and area of wetland in Jinggu County, as well as its animal resources were fi gured out and analyzed systematically. Major threats that the local wetland resources are faced with were summarized, and corresponding strategies for the protection and sustainable development of the wetland resources were proposed to provide useful references for the distribution of wetland resources in the county.展开更多
Due to the regional characteristics and special environment of classical Suzhou gardens, ancient and famous trees in these gardens are not only organisms or natural resources, but also witnesses and recorders of histo...Due to the regional characteristics and special environment of classical Suzhou gardens, ancient and famous trees in these gardens are not only organisms or natural resources, but also witnesses and recorders of history, so they have unique attributes and value of humanistic resources. On this basis, current situation of ancient and famous trees as well as ecological landscapes formed by these trees in classical Suzhou gardens were analyzed, connotations of these trees elaborated, and relevant regulations taken to identify the grade of these trees. Ancient and famous trees in 9 classical Chinese gardens were investigated, specifically, the Humble Administrator's Garden, the Lingering Garden, the Master-of-Nets Garden, the Mountain Villa with Embracing Beauty, the Pavilion of Surging Waves, the Lion Grove Garden, the Garden of Cultivation, the Couple's Retreat Garden and the Garden of Pleasure. Compared with statistics obtained in 2002, the quantity of ancient and famous trees in these 9 gardens reduced by 11. History and growth state of some trees were introduced, such as Pinus bungeana Zucc. ex Endl., Ginkgo biloba L., Sabina chinensis (Linn.) Ant., Buxus sinica (Rehd. et Wils.) Cheng, Cudrania tricuspidata (Carr.) Bur., and significance of the principle-"right tree for right land" for ancient trees aged 100 years or more was stressed. Moreover, it was stressed that garden protection should also devote more attention to researches on plants.展开更多
为了解我国河北省牛梨形虫的种类、感染率、遗传进化及季节流行性情况,本研究共收集河北省7个地级市的牛血液样品564份,以提取的牛全血液基因组DNA为模板,采用套式PCR对牛梨形虫18S r RNA基因进行扩增检测,并鉴定虫种,选取10份不同地区...为了解我国河北省牛梨形虫的种类、感染率、遗传进化及季节流行性情况,本研究共收集河北省7个地级市的牛血液样品564份,以提取的牛全血液基因组DNA为模板,采用套式PCR对牛梨形虫18S r RNA基因进行扩增检测,并鉴定虫种,选取10份不同地区牛犁形虫阳性样品测序,并构建其18S r RNA基因系统进化树分析其遗传进化特征。结果显示,我国河北省牛梨形虫总感染率为18.6%(105/564),其中张家口地区牛梨形虫感染率最高,为83.3%(20/24),极显著高于河北省其他地区(P<0.01),唐山、沧州、石家庄及承德的牛梨形虫感染率分别为27.4%(32/117)、22.1%(17/77)、25.0%(20/80)和19.0%(16/84),秦皇岛和衡水地区牛梨形虫感染率为0。感染梨形虫的虫种主要为双芽巴贝斯虫、牛巴贝斯虫和瑟氏泰勒虫,感染率最高的为双芽巴贝斯虫(12.2%,69/564)。18S r RNA基因的进化树分析结果显示,10份牛梨形虫18S r RNA基因均呈地区性聚集;统计学分析结果显示,8月份河北省牛梨形虫感染率最高(29.7%),显著高于其他月份(P<0.05),4月~8月间牛梨形虫感染率呈逐渐上升的趋势,8月份达到顶峰后感染率逐渐下降。本研究首次对河北省牛梨形虫进行了流行病学调查,并分析了其遗传进化特征,结果表明河北省存在牛梨形虫的感染,尤其是张家口地区,该地区应在夏季应加强对牛梨形虫的重点防控。本研究为河北省牛梨形虫的防制提供了科学依据。展开更多
基金Supported by Youth Project of Natural Science Foundation of Anhui Province(2008085QC135)Postdoctoral Workstation Project of West Anhui University(WXBSH2020003)+4 种基金Key Program of Natural Science Research Project for Anhui Universities(KJ2021A0954)Forestry Carbon Sequestration Self-funded Science and Technology Project of Anhui Province(LJH[2022]267)Subject of Lu'an Forestry Bureau(0045021093)School-level Quality Engineering Project of West Anhui University(wxxy2021017)Provincial Quality Engineering Project of West Anhui University(2022jyxm1765).
文摘To figure out the disease occurrence of landscape plants in the main urban area of Lu'an City,the author investigated the disease occurrence of landscape plants in park green space,residential green space,unit attached green space and main road in the area under administration.The survey results showed that there were 29 species of urban landscape plant diseases,mainly powdery mildew and spot diseases.According to the characteristics of the diseases,the causes and problems of the diseases were analyzed,and the corresponding prevention and control measures were put forward.
文摘Through investigating wetland resources in Jinggu County, spatial distribution, type and area of wetland in Jinggu County, as well as its animal resources were fi gured out and analyzed systematically. Major threats that the local wetland resources are faced with were summarized, and corresponding strategies for the protection and sustainable development of the wetland resources were proposed to provide useful references for the distribution of wetland resources in the county.
文摘Due to the regional characteristics and special environment of classical Suzhou gardens, ancient and famous trees in these gardens are not only organisms or natural resources, but also witnesses and recorders of history, so they have unique attributes and value of humanistic resources. On this basis, current situation of ancient and famous trees as well as ecological landscapes formed by these trees in classical Suzhou gardens were analyzed, connotations of these trees elaborated, and relevant regulations taken to identify the grade of these trees. Ancient and famous trees in 9 classical Chinese gardens were investigated, specifically, the Humble Administrator's Garden, the Lingering Garden, the Master-of-Nets Garden, the Mountain Villa with Embracing Beauty, the Pavilion of Surging Waves, the Lion Grove Garden, the Garden of Cultivation, the Couple's Retreat Garden and the Garden of Pleasure. Compared with statistics obtained in 2002, the quantity of ancient and famous trees in these 9 gardens reduced by 11. History and growth state of some trees were introduced, such as Pinus bungeana Zucc. ex Endl., Ginkgo biloba L., Sabina chinensis (Linn.) Ant., Buxus sinica (Rehd. et Wils.) Cheng, Cudrania tricuspidata (Carr.) Bur., and significance of the principle-"right tree for right land" for ancient trees aged 100 years or more was stressed. Moreover, it was stressed that garden protection should also devote more attention to researches on plants.
文摘为了解我国河北省牛梨形虫的种类、感染率、遗传进化及季节流行性情况,本研究共收集河北省7个地级市的牛血液样品564份,以提取的牛全血液基因组DNA为模板,采用套式PCR对牛梨形虫18S r RNA基因进行扩增检测,并鉴定虫种,选取10份不同地区牛犁形虫阳性样品测序,并构建其18S r RNA基因系统进化树分析其遗传进化特征。结果显示,我国河北省牛梨形虫总感染率为18.6%(105/564),其中张家口地区牛梨形虫感染率最高,为83.3%(20/24),极显著高于河北省其他地区(P<0.01),唐山、沧州、石家庄及承德的牛梨形虫感染率分别为27.4%(32/117)、22.1%(17/77)、25.0%(20/80)和19.0%(16/84),秦皇岛和衡水地区牛梨形虫感染率为0。感染梨形虫的虫种主要为双芽巴贝斯虫、牛巴贝斯虫和瑟氏泰勒虫,感染率最高的为双芽巴贝斯虫(12.2%,69/564)。18S r RNA基因的进化树分析结果显示,10份牛梨形虫18S r RNA基因均呈地区性聚集;统计学分析结果显示,8月份河北省牛梨形虫感染率最高(29.7%),显著高于其他月份(P<0.05),4月~8月间牛梨形虫感染率呈逐渐上升的趋势,8月份达到顶峰后感染率逐渐下降。本研究首次对河北省牛梨形虫进行了流行病学调查,并分析了其遗传进化特征,结果表明河北省存在牛梨形虫的感染,尤其是张家口地区,该地区应在夏季应加强对牛梨形虫的重点防控。本研究为河北省牛梨形虫的防制提供了科学依据。
