Land use regionalization is a strategic measure for the rational use,management and protection of land resources based on local conditions.Based on the needs of targeted poverty alleviation and rural revitalization st...Land use regionalization is a strategic measure for the rational use,management and protection of land resources based on local conditions.Based on the needs of targeted poverty alleviation and rural revitalization strategy and the analysis on the natural and socioeconomic conditions,characteristics of land resources,and the current status of land use in Luquan County,corresponding regionalization indices were selected from four aspects:economic environment conditions,socioeconomic conditions,land resources and land use structure,and poverty alleviation and development level,a scientific and feasible index system for land use regionalization was constructed,and land use in Luquan County was regionalized by using systematic cluster analysis method.The results show that the 16 townships(towns)of Luquan County were divided into four land use regions,poverty alleviation region for development of new town and characteristic industries in the southwest(I),agricultural development and ecological poverty alleviation region in central mountainous area(II),poverty alleviation region for development of characteristic agriculture and tourism towns in eastern plateau mountainous area(III),and poverty alleviation region for development of characteristic industries and protection of land economy in the northern alpine valley area(IV).In addition,suggestions were put forward for the rational use of land in each region.展开更多
针对现有XML数据压缩方法在压缩数据上不支持有效连接操作问题,提出采用区间编码的压缩方法(region encodingbased XML data compression method,REXDC)对XML数据中的节点进行区间编码,实现结构连接;提出相同子树的概念和合并相同子树...针对现有XML数据压缩方法在压缩数据上不支持有效连接操作问题,提出采用区间编码的压缩方法(region encodingbased XML data compression method,REXDC)对XML数据中的节点进行区间编码,实现结构连接;提出相同子树的概念和合并相同子树的方法,建立一种支持有效连接操作的存储模型,实现XML数据压缩,同时解决在压缩数据上不支持有效连接操作的问题;最后,以压缩率、压缩时间、解压时间及查询性能作为衡量标准,将REXDC与XGrind、XPress和XQzip算法进行比较。实验结果证明,REXDC具有较好的压缩性能和查询性能。展开更多
对采自新疆库车县胡杨林地的野生木耳蘑菇进行菌丝体分离,获得一株白色菌丝.应用引物ITSlf和ITS4扩增其ITS区间,测序且结果经BLAST比对和构建NJ进化树来确定其分类地位.结果显示该菌丝(XJURML-3)为灰白翅孢壳Emericellopsis pallida(L.A...对采自新疆库车县胡杨林地的野生木耳蘑菇进行菌丝体分离,获得一株白色菌丝.应用引物ITSlf和ITS4扩增其ITS区间,测序且结果经BLAST比对和构建NJ进化树来确定其分类地位.结果显示该菌丝(XJURML-3)为灰白翅孢壳Emericellopsis pallida(L.A.Beljakova),GenBank检索号EU045572.XJURML-3形态学特征与国际已有Emericellopsis pallida strain CBS 624.73较为相似,菌株在中国典型培养物保藏中心保藏号为:CCTCC AF 207025.展开更多
文摘Land use regionalization is a strategic measure for the rational use,management and protection of land resources based on local conditions.Based on the needs of targeted poverty alleviation and rural revitalization strategy and the analysis on the natural and socioeconomic conditions,characteristics of land resources,and the current status of land use in Luquan County,corresponding regionalization indices were selected from four aspects:economic environment conditions,socioeconomic conditions,land resources and land use structure,and poverty alleviation and development level,a scientific and feasible index system for land use regionalization was constructed,and land use in Luquan County was regionalized by using systematic cluster analysis method.The results show that the 16 townships(towns)of Luquan County were divided into four land use regions,poverty alleviation region for development of new town and characteristic industries in the southwest(I),agricultural development and ecological poverty alleviation region in central mountainous area(II),poverty alleviation region for development of characteristic agriculture and tourism towns in eastern plateau mountainous area(III),and poverty alleviation region for development of characteristic industries and protection of land economy in the northern alpine valley area(IV).In addition,suggestions were put forward for the rational use of land in each region.
文摘针对现有XML数据压缩方法在压缩数据上不支持有效连接操作问题,提出采用区间编码的压缩方法(region encodingbased XML data compression method,REXDC)对XML数据中的节点进行区间编码,实现结构连接;提出相同子树的概念和合并相同子树的方法,建立一种支持有效连接操作的存储模型,实现XML数据压缩,同时解决在压缩数据上不支持有效连接操作的问题;最后,以压缩率、压缩时间、解压时间及查询性能作为衡量标准,将REXDC与XGrind、XPress和XQzip算法进行比较。实验结果证明,REXDC具有较好的压缩性能和查询性能。
文摘对采自新疆库车县胡杨林地的野生木耳蘑菇进行菌丝体分离,获得一株白色菌丝.应用引物ITSlf和ITS4扩增其ITS区间,测序且结果经BLAST比对和构建NJ进化树来确定其分类地位.结果显示该菌丝(XJURML-3)为灰白翅孢壳Emericellopsis pallida(L.A.Beljakova),GenBank检索号EU045572.XJURML-3形态学特征与国际已有Emericellopsis pallida strain CBS 624.73较为相似,菌株在中国典型培养物保藏中心保藏号为:CCTCC AF 207025.
