The main goal of this study is to provide information about the foraging value of a number of specific plant species for honeybees in Palestine, since one of the limiting factors of Palestine＇s apiculture industry is...The main goal of this study is to provide information about the foraging value of a number of specific plant species for honeybees in Palestine, since one of the limiting factors of Palestine＇s apiculture industry is the unpredicted seasonality in the blooming phenology of nectariferous and polleniferous plant species. This limiting factor can be overcome by increasing and diversifying the population of bee forage plant species throughout man made plantations. In this survey, a combination of literature and field surveys were used in order to identify and compile a list of plant species, which are of importance for fulfilling the honeybee＇s needs of nectar and pollen. The study was conducted through bi-weekly visit to a numbers of randomly selected sites located in some nature reserves and agricultural fields, within the West Bank Governorates. A total of 143 nectariferous and polleniferous plant species, belonging to 37 families, were identified through direct observation of foraging bees, and/or through literature survey. The dominant families are Compositae with 27 （18.8%） belonging species, followed by Lamiaceae family with 24 （16.7%） belonging species, then followed by Boraginaceae family with 8 （5.5%） belonging species and then followed by other families. The identified plant species was grouped into pollen, nectar and both pollen and nectar sources plant species. The polleniferous plant species group counted 17 which is equivalent to 11.8%; the nectariferous plant species group counted 29 which is equivalent to 20.2%; and the third groups of plant species that have been visited by bees for collecting both pollen and nectar counted 97, which is equivalent to 68%. The chronologies of the blooming plant species were also recorded. It was concluded that any of the studied locations can be profitably utilized for commercial and or large scale beekeeping, if the important limiting factor can be overcome by increasing and diversifying the population of bee forage plant species throughout man made plantations. The paper provides information on the wild and cultivated nectariferous and polleniferous plants that are important for the bees in the West Bank Governorates, Palestine.展开更多
SPSS13.0 was used to process the data of the 1-6 batch of key cultural relic conservation units promulgated by the State Administration of Cultural Heritage of China;and multi-element evaluation method was used to cal...SPSS13.0 was used to process the data of the 1-6 batch of key cultural relic conservation units promulgated by the State Administration of Cultural Heritage of China;and multi-element evaluation method was used to calculate the composite distribution index.The spatial distribution of cultural relics of provinces in China can be divided into four grades,namely:very rich areas,rich areas,poor areas and very poor areas;the article analyzes the characteristics of cultural resources in spatial and temporal distribution.The paper holds that(1)the distribution of China's cultural relic tourism resources is relatively concentrated,different sharply from region to region,with more Han nation's heritage,less relics of the ethnic minorities;(2) Henan,Hebei,Shaanxi,Shanxi Province are the main regions with heavy distribution of cultural resources;(3) relics appeared in specific time periods in China's history.Ming and Qing Dynasties,Sui,Tang and Five Dynasties,Song,Liao and Jin,the Western Han,Shang and Zhou dynasties,the New Stone Age are the major periods producing more cultural relics.This paper also analyzes relationships of the emergence of cultural relics with production technology,specific historical process,specific geographical location,political system,religion,national culture,customs,architectural styles and techniques of the traditional cultural educational system.Finally,the paper discusses the development and protection of heritage.展开更多
文摘The main goal of this study is to provide information about the foraging value of a number of specific plant species for honeybees in Palestine, since one of the limiting factors of Palestine＇s apiculture industry is the unpredicted seasonality in the blooming phenology of nectariferous and polleniferous plant species. This limiting factor can be overcome by increasing and diversifying the population of bee forage plant species throughout man made plantations. In this survey, a combination of literature and field surveys were used in order to identify and compile a list of plant species, which are of importance for fulfilling the honeybee＇s needs of nectar and pollen. The study was conducted through bi-weekly visit to a numbers of randomly selected sites located in some nature reserves and agricultural fields, within the West Bank Governorates. A total of 143 nectariferous and polleniferous plant species, belonging to 37 families, were identified through direct observation of foraging bees, and/or through literature survey. The dominant families are Compositae with 27 （18.8%） belonging species, followed by Lamiaceae family with 24 （16.7%） belonging species, then followed by Boraginaceae family with 8 （5.5%） belonging species and then followed by other families. The identified plant species was grouped into pollen, nectar and both pollen and nectar sources plant species. The polleniferous plant species group counted 17 which is equivalent to 11.8%; the nectariferous plant species group counted 29 which is equivalent to 20.2%; and the third groups of plant species that have been visited by bees for collecting both pollen and nectar counted 97, which is equivalent to 68%. The chronologies of the blooming plant species were also recorded. It was concluded that any of the studied locations can be profitably utilized for commercial and or large scale beekeeping, if the important limiting factor can be overcome by increasing and diversifying the population of bee forage plant species throughout man made plantations. The paper provides information on the wild and cultivated nectariferous and polleniferous plants that are important for the bees in the West Bank Governorates, Palestine.
基金supported by Science Research Program of Hainan Provincial Education Bureau (Grant No Hj2008-79)funded by the National Natural Science Foundation of China (Grant Nos 40963001, 40061003, 40661013)Key Course Program of Natural Geography of Hainan Normal University and First-degree Course Program of Geographical Science of Hainan Province
文摘SPSS13.0 was used to process the data of the 1-6 batch of key cultural relic conservation units promulgated by the State Administration of Cultural Heritage of China;and multi-element evaluation method was used to calculate the composite distribution index.The spatial distribution of cultural relics of provinces in China can be divided into four grades,namely:very rich areas,rich areas,poor areas and very poor areas;the article analyzes the characteristics of cultural resources in spatial and temporal distribution.The paper holds that(1)the distribution of China's cultural relic tourism resources is relatively concentrated,different sharply from region to region,with more Han nation's heritage,less relics of the ethnic minorities;(2) Henan,Hebei,Shaanxi,Shanxi Province are the main regions with heavy distribution of cultural resources;(3) relics appeared in specific time periods in China's history.Ming and Qing Dynasties,Sui,Tang and Five Dynasties,Song,Liao and Jin,the Western Han,Shang and Zhou dynasties,the New Stone Age are the major periods producing more cultural relics.This paper also analyzes relationships of the emergence of cultural relics with production technology,specific historical process,specific geographical location,political system,religion,national culture,customs,architectural styles and techniques of the traditional cultural educational system.Finally,the paper discusses the development and protection of heritage.
