Based on different types of diseases,pests and weeds in the whole growth period of rhubarb(sowing period-harvesting period),the corresponding green prevention and control technology is proposed,aiming to further reduc...Based on different types of diseases,pests and weeds in the whole growth period of rhubarb(sowing period-harvesting period),the corresponding green prevention and control technology is proposed,aiming to further reduce the application amount of pesticides and fertilizers in the production of medicinal sources of Lixian rhubarb during the"14 th Five-Year Plan"period.The results will provide a theoretical basis for increasing the promotion and application of agricultural prevention and control(including disease-resistant varieties,ecological regulation),physical prevention and control,biological prevention and control measures,thus ensuring effective protection of the ecological environment,green,healthy and sustainable development of traditional Chinese medicine agriculture in Longnan,and source quality of authentic medicinal materials.展开更多
The exploration level in the south of Lixian slope is relatively low that causes the hydrocarbon distribution pattern and hydrocarbon accumulation model of discovered reservoirs un- clear. It was assumed that the hyd...The exploration level in the south of Lixian slope is relatively low that causes the hydrocarbon distribution pattern and hydrocarbon accumulation model of discovered reservoirs un- clear. It was assumed that the hydrocarbon accumulation model was mainly ＂stepped-like＂ type, but this model is contradicted with newly discovered reservoirs. Through comprehensive study of faults ac- tivity stages and depositional system, it can be concluded that the late period developed and late period attenuation faults act as the vertical migration path, while connected sandbodies provide lateral migra- tion path for oil and gas. Combining with the distribution of the known reservoirs and oil-source corre- lation, the hydrocarbon accumulation model in the south of Lixian slope is characterized by dual source rocks generating; connected sandbodies parallel transporting; shallow fault nose traps accumulating. This model reveals the direction and clue of the following exploration and development, which are based on shallow formation; finding subtle structure traps by fine seismic interpretation and accurate sedimentary microfacies characterization.展开更多
为了解云南思茅境内澜沧江和李仙江的鱼类多样性,以红河水系的2条一级支流绿汁江和南溪河作为分析的对照样本,采用β多样性指数中的二元属性数据测定法的Cody指数、R ou tledge指数和相似性系数作分析。经整理,澜沧江思茅片土著鱼类61种...为了解云南思茅境内澜沧江和李仙江的鱼类多样性,以红河水系的2条一级支流绿汁江和南溪河作为分析的对照样本,采用β多样性指数中的二元属性数据测定法的Cody指数、R ou tledge指数和相似性系数作分析。经整理,澜沧江思茅片土著鱼类61种,分属13科41属;李仙江土著鱼类37种,分属11科31属。2个水系合起来,共有土著鱼类82种,隶属于5目14科50属。β多样性指数的计算结果表明:在比较的4条河流中,澜沧江思茅片的鱼类多样性最为丰富。河流长度、流域面积的大小及支流的多少、生物群落的相互作用、河流的位置与生产力等均影响着鱼类多样性。展开更多
基金Supported by Science and Technology Plan Promoting Regional Collaboration Project of Longnan City(2022-S.BF-01)Key Talent Project of Gansu Province(2021RCXM042,2020RCXM041).
文摘Based on different types of diseases,pests and weeds in the whole growth period of rhubarb(sowing period-harvesting period),the corresponding green prevention and control technology is proposed,aiming to further reduce the application amount of pesticides and fertilizers in the production of medicinal sources of Lixian rhubarb during the"14 th Five-Year Plan"period.The results will provide a theoretical basis for increasing the promotion and application of agricultural prevention and control(including disease-resistant varieties,ecological regulation),physical prevention and control,biological prevention and control measures,thus ensuring effective protection of the ecological environment,green,healthy and sustainable development of traditional Chinese medicine agriculture in Longnan,and source quality of authentic medicinal materials.
基金supported by the Nation Nature Science Foun-dation of China(No.41072084)Project of Large Oil and Gas Fields and Coal-bed Methane Development,China(No.2011ZX05001)
文摘The exploration level in the south of Lixian slope is relatively low that causes the hydrocarbon distribution pattern and hydrocarbon accumulation model of discovered reservoirs un- clear. It was assumed that the hydrocarbon accumulation model was mainly ＂stepped-like＂ type, but this model is contradicted with newly discovered reservoirs. Through comprehensive study of faults ac- tivity stages and depositional system, it can be concluded that the late period developed and late period attenuation faults act as the vertical migration path, while connected sandbodies provide lateral migra- tion path for oil and gas. Combining with the distribution of the known reservoirs and oil-source corre- lation, the hydrocarbon accumulation model in the south of Lixian slope is characterized by dual source rocks generating; connected sandbodies parallel transporting; shallow fault nose traps accumulating. This model reveals the direction and clue of the following exploration and development, which are based on shallow formation; finding subtle structure traps by fine seismic interpretation and accurate sedimentary microfacies characterization.
文摘为了解云南思茅境内澜沧江和李仙江的鱼类多样性,以红河水系的2条一级支流绿汁江和南溪河作为分析的对照样本,采用β多样性指数中的二元属性数据测定法的Cody指数、R ou tledge指数和相似性系数作分析。经整理,澜沧江思茅片土著鱼类61种,分属13科41属;李仙江土著鱼类37种,分属11科31属。2个水系合起来,共有土著鱼类82种,隶属于5目14科50属。β多样性指数的计算结果表明:在比较的4条河流中,澜沧江思茅片的鱼类多样性最为丰富。河流长度、流域面积的大小及支流的多少、生物群落的相互作用、河流的位置与生产力等均影响着鱼类多样性。
