With Longzhou County as example, the weed species, distributions, domi- nant populations and diversity indexes in corn, sugarcane, pineapple, banana and mango fields under different land use patterns in southwest Guan...With Longzhou County as example, the weed species, distributions, domi- nant populations and diversity indexes in corn, sugarcane, pineapple, banana and mango fields under different land use patterns in southwest Guangxi were investi- gated. The results showed that there were 27 families 54 species of weeds in sampling area. Eleven species were Gramineae and ten species were Compositae. There were eight families 13 species in corn fields, ten families 20 species in sug- arcane fields, 12 families 18 species in pineapple fields, ten families 11 species in banana fields and nine families 14 species in mango fields. Bidens bipinnata, Eupa- torium odoratum and Emilia sonchifolia of Compositae were generally occurred with serious harm. Roegneria kamoji, Stellaria media and Bothriochloa intermedia of Gramineae were widely occurred. Weed community made up of Compositae ＋ Gramineae ＋ Oxalidaceae was the main form of dryland weed. The Pielou uniformi- ty of the five use patterns in the studying area were 0.967, 0.964, 0,947, 0.969 and 0.962, respectively, which were high.展开更多
[Objective]This study aimed to clarify the spatial patterns of comparative advantage of watermelon production in Guangxi Zhuang Autonomous Region, to pro-vide theoretical basis for the development of watermelon indust...[Objective]This study aimed to clarify the spatial patterns of comparative advantage of watermelon production in Guangxi Zhuang Autonomous Region, to pro-vide theoretical basis for the development of watermelon industry in China. [Method] Based on the agricultural statistics data of Guangxi and al over China, yield com-parative advantage （YCA） index, efficiency comparative advantage （ECA） index, scale comparative advantage （SCA） index, concentration ratio comparative advantage （CRCA） index, comprehensive comparative advantage （CCA） index, ratio of yield per unit area （RYPA） index and sowing area ratio （SAR） index were established and calculated to determine the watermelon production comparative advantages in 31 provinces （cities） in China. Spacial patterns of the comparative advantages were produced by using GIS software. [Result] Nine provinces Shandong, Henan, Anhui, Hebei, Hubei, Jiangsu, Hunan, Zhejiang and Guangxi were the dominant regions in watermelon production al over the country. The Central and Eastern China showed the integrated comparative advantage in watermelon production, while the Southern, Northeastern, Northern and Northwestern China can be considered as the potential places for watermelon production in future. Southwest China gave more priority to watermelon production, so the comparative advantages kept increasing here. [Con-clusion] Based on this study, watermelon production should be a prior consideration among the agricultural products in Guangxi. Related measures should be developed to optimize the regional distribution of watermelon in Guangxi and China to promote healthy competition in watermelon production.展开更多
After 30 years of opening-up and reform, the jasmine tea industry in Guangxi has developed into a national pillar industry with special resources in Chi- na. This industry has been influenced by ＂lnternet＋＂ at vari...After 30 years of opening-up and reform, the jasmine tea industry in Guangxi has developed into a national pillar industry with special resources in Chi- na. This industry has been influenced by ＂lnternet＋＂ at various aspects. Restricted by the location, information system, brand marketing, the industry should be inte- grated with the ＂lnternet ＋＂ thinking for overall upgrading.展开更多
Interest in the ore\|forming histories of basins has grown rapid since 1960 and is now intensive. The main reason behind the acceleration is the increasing awareness that the natural processes responsible for generati...Interest in the ore\|forming histories of basins has grown rapid since 1960 and is now intensive. The main reason behind the acceleration is the increasing awareness that the natural processes responsible for generating metal deposits in the sedimentary basin from the source rocks of the beneath the basin and intensively hydrothermal activity in the basin. Observations made in different continental margin basin systems and superlarge deposits in Chinese Yunnan\|Guizhou\|Guangxi Province on the eastern margin of the Qingzang (Himalaya—Karakoram—Tibet) were investigated in terms of geodynamics of basin formation. Geotectonically, the area is situated in the conjoint between the Tethys—Himalaya and the Marginal\|Pacific tectonic domain, characterized by very complex geological structure, typical basin\|mountain tectonics, abundant Superlarge deposits.展开更多
基金Supported by Public Welfare Fund Project of Guangxi(GXNYRKS201506)~~
文摘With Longzhou County as example, the weed species, distributions, domi- nant populations and diversity indexes in corn, sugarcane, pineapple, banana and mango fields under different land use patterns in southwest Guangxi were investi- gated. The results showed that there were 27 families 54 species of weeds in sampling area. Eleven species were Gramineae and ten species were Compositae. There were eight families 13 species in corn fields, ten families 20 species in sug- arcane fields, 12 families 18 species in pineapple fields, ten families 11 species in banana fields and nine families 14 species in mango fields. Bidens bipinnata, Eupa- torium odoratum and Emilia sonchifolia of Compositae were generally occurred with serious harm. Roegneria kamoji, Stellaria media and Bothriochloa intermedia of Gramineae were widely occurred. Weed community made up of Compositae ＋ Gramineae ＋ Oxalidaceae was the main form of dryland weed. The Pielou uniformi- ty of the five use patterns in the studying area were 0.967, 0.964, 0,947, 0.969 and 0.962, respectively, which were high.
基金Supported by Earmarked Fund for China Agriculture Research System(CARS-26)Science and Technology Development Fund of Guangxi Academy of AgriculturalSciences(GNK2013YZ26)National Space Breeding Project(2006HT100113)~~
文摘[Objective]This study aimed to clarify the spatial patterns of comparative advantage of watermelon production in Guangxi Zhuang Autonomous Region, to pro-vide theoretical basis for the development of watermelon industry in China. [Method] Based on the agricultural statistics data of Guangxi and al over China, yield com-parative advantage （YCA） index, efficiency comparative advantage （ECA） index, scale comparative advantage （SCA） index, concentration ratio comparative advantage （CRCA） index, comprehensive comparative advantage （CCA） index, ratio of yield per unit area （RYPA） index and sowing area ratio （SAR） index were established and calculated to determine the watermelon production comparative advantages in 31 provinces （cities） in China. Spacial patterns of the comparative advantages were produced by using GIS software. [Result] Nine provinces Shandong, Henan, Anhui, Hebei, Hubei, Jiangsu, Hunan, Zhejiang and Guangxi were the dominant regions in watermelon production al over the country. The Central and Eastern China showed the integrated comparative advantage in watermelon production, while the Southern, Northeastern, Northern and Northwestern China can be considered as the potential places for watermelon production in future. Southwest China gave more priority to watermelon production, so the comparative advantages kept increasing here. [Con-clusion] Based on this study, watermelon production should be a prior consideration among the agricultural products in Guangxi. Related measures should be developed to optimize the regional distribution of watermelon in Guangxi and China to promote healthy competition in watermelon production.
文摘After 30 years of opening-up and reform, the jasmine tea industry in Guangxi has developed into a national pillar industry with special resources in Chi- na. This industry has been influenced by ＂lnternet＋＂ at various aspects. Restricted by the location, information system, brand marketing, the industry should be inte- grated with the ＂lnternet ＋＂ thinking for overall upgrading.
文摘Interest in the ore\|forming histories of basins has grown rapid since 1960 and is now intensive. The main reason behind the acceleration is the increasing awareness that the natural processes responsible for generating metal deposits in the sedimentary basin from the source rocks of the beneath the basin and intensively hydrothermal activity in the basin. Observations made in different continental margin basin systems and superlarge deposits in Chinese Yunnan\|Guizhou\|Guangxi Province on the eastern margin of the Qingzang (Himalaya—Karakoram—Tibet) were investigated in terms of geodynamics of basin formation. Geotectonically, the area is situated in the conjoint between the Tethys—Himalaya and the Marginal\|Pacific tectonic domain, characterized by very complex geological structure, typical basin\|mountain tectonics, abundant Superlarge deposits.
