As an important constitute of land consolidation, high-standard basic farmland construction is an important means to protect the quantity, quality and ecological environment of cultivated land. Its target not only lie...As an important constitute of land consolidation, high-standard basic farmland construction is an important means to protect the quantity, quality and ecological environment of cultivated land. Its target not only lies in the increase of cultivated land quantity, but also the improvement of cultivated land quality, agricultural production conditions and ecosystem environments. In the present study, the quality evaluation method and construction arrangement of cultivated land were explored to facilitate the process of decision-making and implementation for high-standard basic farmland construction(HSBFC) with administrative village as the unit. Taking the land comprehensive improvement project area in Quzhou County, Handan City, Hebei Province as a case study, the whole process of the study comprised of three steps: 1) establishment of the evaluation model of cultivated land quality uniformity based on regional optimum cultivated land quality, and construction of the uniformity evaluation index system from the aspects of soil fertility quality, engineering quality, spatial quality and eco-environment quality, according to the new concept of cultivated land quality; 2) calculation of cultivated land quality uniformity by grading indicators, assigning scores and weighting sums, exploring the local homogenization characteristics of regional cultivated land quality through spatial autocorrelation analysis, and analyzing the constraints and transformative potential of barrier factors; 3) arrangement of HSBFC according to the principle of concentration, continuity and priority to the easy operation. The results revealed that the value of farmland quality uniformity for the administrative villages in the study area was between 7.76 and 21.96, and there was a difference between various administrative villages. The regional spatial autocorrelation patterns included High-High(HH), Low-Low(LL), High-Low(HL) and Low-High(LH). These indicate that regional cultivated land quality has local homogenization characteristics. The most restrictive factors in the study area were the medium and low transformation difficulty indexes, including soil organic matter content, farmland shelterbelt network density, field regularity and scale of the field. In addition, there were also high transformation difficulty indicators in some areas, such as sectional configuration. The project area was divided into four partitions: major construction area, secondary construction area, general construction area, and conditional construction area. The cultivated land area of each subarea was 1538.85 ha, 1224.27 ha, 555.93 ha, and 1666.63 ha, respectively. This comprised of 30.87%, 24.56%, 11.15% and 33.42% of the total project area, respectively. The evaluation model and index system could satisfy the evaluation of farmland quality and diagnosis of obstacle factors to facilitate the subsequent construction decision. The present study provides reference for the practice of regional HSBFC, and a new feasible idea and method for related studies.展开更多
ETIOLOGICAL TERMSIn traditional Chinese medicine, etiology is commonly called "cause of disease". The various factors that may cause disease are called "pathogenic factors". In the past they were c...ETIOLOGICAL TERMSIn traditional Chinese medicine, etiology is commonly called "cause of disease". The various factors that may cause disease are called "pathogenic factors". In the past they were classified into three categories: "exogenous factors", "endogenous factors", and "non-exo-endogenous factors". In the modern textbooks this tri-causal hypothesis is not so widely used, while a new classification has been developed.展开更多
Blood in Western medicine and血〔xue〕inTCM refer to the same substance,but some writ-ers insisted the use of xue or hsueh for TCM be-cause the latter’s knowledge about blood is differ-
October 14<sup>th</sup> will be an important day for all of our colleagues engaged in standardization.The theme of the 2008 World Standards Day is'Intelli-gent and sustainable buildings'.The requir...October 14<sup>th</sup> will be an important day for all of our colleagues engaged in standardization.The theme of the 2008 World Standards Day is'Intelli-gent and sustainable buildings'.The requirements for urban residential developments are rising daily,accompanied by increasing public awareness展开更多
植物品种DUS(Distinctness,Uniformity and Stability)测试是植物新品种审定、登记的必要环节。DUS测试指南是品种审定机构开展DUS测试的基本依据。本研究按照国际植物新品种保护联盟(UPOV)技术文件《TGP/7植物新品种测试指南的研制》...植物品种DUS(Distinctness,Uniformity and Stability)测试是植物新品种审定、登记的必要环节。DUS测试指南是品种审定机构开展DUS测试的基本依据。本研究按照国际植物新品种保护联盟(UPOV)技术文件《TGP/7植物新品种测试指南的研制》规定的程序要求,以90份红豆草(Onobrychis viciifolia)品种资源为试验材料,在新疆乌鲁木齐开展了两年的田间试验,经过多次同行专家论证修订,完成了红豆草DUS测试指南报批稿。指南规定了红豆草DUS测试的31个测试性状及其观测方法和判定标准,13个标准品种,并详细介绍了红豆草DUS测试指南研制的过程及指南的主要内容。指南的制订为国内红豆草新品种特异性、一致性和稳定性的判定提供了技术依据,对加强我国红豆草新品种保护具有重要意义,为红豆草产业健康发展提供技术保障。展开更多
基金Under the auspices of National Science and Technology Support Program of China(No.2015BAD06B01)
文摘As an important constitute of land consolidation, high-standard basic farmland construction is an important means to protect the quantity, quality and ecological environment of cultivated land. Its target not only lies in the increase of cultivated land quantity, but also the improvement of cultivated land quality, agricultural production conditions and ecosystem environments. In the present study, the quality evaluation method and construction arrangement of cultivated land were explored to facilitate the process of decision-making and implementation for high-standard basic farmland construction(HSBFC) with administrative village as the unit. Taking the land comprehensive improvement project area in Quzhou County, Handan City, Hebei Province as a case study, the whole process of the study comprised of three steps: 1) establishment of the evaluation model of cultivated land quality uniformity based on regional optimum cultivated land quality, and construction of the uniformity evaluation index system from the aspects of soil fertility quality, engineering quality, spatial quality and eco-environment quality, according to the new concept of cultivated land quality; 2) calculation of cultivated land quality uniformity by grading indicators, assigning scores and weighting sums, exploring the local homogenization characteristics of regional cultivated land quality through spatial autocorrelation analysis, and analyzing the constraints and transformative potential of barrier factors; 3) arrangement of HSBFC according to the principle of concentration, continuity and priority to the easy operation. The results revealed that the value of farmland quality uniformity for the administrative villages in the study area was between 7.76 and 21.96, and there was a difference between various administrative villages. The regional spatial autocorrelation patterns included High-High(HH), Low-Low(LL), High-Low(HL) and Low-High(LH). These indicate that regional cultivated land quality has local homogenization characteristics. The most restrictive factors in the study area were the medium and low transformation difficulty indexes, including soil organic matter content, farmland shelterbelt network density, field regularity and scale of the field. In addition, there were also high transformation difficulty indicators in some areas, such as sectional configuration. The project area was divided into four partitions: major construction area, secondary construction area, general construction area, and conditional construction area. The cultivated land area of each subarea was 1538.85 ha, 1224.27 ha, 555.93 ha, and 1666.63 ha, respectively. This comprised of 30.87%, 24.56%, 11.15% and 33.42% of the total project area, respectively. The evaluation model and index system could satisfy the evaluation of farmland quality and diagnosis of obstacle factors to facilitate the subsequent construction decision. The present study provides reference for the practice of regional HSBFC, and a new feasible idea and method for related studies.
文摘ETIOLOGICAL TERMSIn traditional Chinese medicine, etiology is commonly called "cause of disease". The various factors that may cause disease are called "pathogenic factors". In the past they were classified into three categories: "exogenous factors", "endogenous factors", and "non-exo-endogenous factors". In the modern textbooks this tri-causal hypothesis is not so widely used, while a new classification has been developed.
文摘Blood in Western medicine and血〔xue〕inTCM refer to the same substance,but some writ-ers insisted the use of xue or hsueh for TCM be-cause the latter’s knowledge about blood is differ-
文摘October 14<sup>th</sup> will be an important day for all of our colleagues engaged in standardization.The theme of the 2008 World Standards Day is'Intelli-gent and sustainable buildings'.The requirements for urban residential developments are rising daily,accompanied by increasing public awareness
文摘植物品种DUS(Distinctness,Uniformity and Stability)测试是植物新品种审定、登记的必要环节。DUS测试指南是品种审定机构开展DUS测试的基本依据。本研究按照国际植物新品种保护联盟(UPOV)技术文件《TGP/7植物新品种测试指南的研制》规定的程序要求,以90份红豆草(Onobrychis viciifolia)品种资源为试验材料,在新疆乌鲁木齐开展了两年的田间试验,经过多次同行专家论证修订,完成了红豆草DUS测试指南报批稿。指南规定了红豆草DUS测试的31个测试性状及其观测方法和判定标准,13个标准品种,并详细介绍了红豆草DUS测试指南研制的过程及指南的主要内容。指南的制订为国内红豆草新品种特异性、一致性和稳定性的判定提供了技术依据,对加强我国红豆草新品种保护具有重要意义,为红豆草产业健康发展提供技术保障。
