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
At present, the large-scale construction of high-standard farmland in China has improved the quality of cropland and crop production and enhanced the eco-environmental security. To obtain a comprehensive understanding...At present, the large-scale construction of high-standard farmland in China has improved the quality of cropland and crop production and enhanced the eco-environmental security. To obtain a comprehensive understanding of high-standard farmland construction in Liaoning Province of China during the 12 th five-year period(2011–2015), through on-the-spot investigations and remote sensing monitoring, this study assessed the construction effectiveness of ten typical sampling projects in Liaoning Province and then presented practical suggestions. The main conclusions were as follows. 1) The ranges of increase in productivity of the ten sampling projects in Liaoning Province all surpassed the goal of 1500 kg/ha. 2) Among all sampling project areas, the levels of productivity stability of nine sampling projects were higher than that of the surrounding farmland in a severe drought year. However, the productivity stability of the high-standard farmland construction project in Faku County, Yiniupu Town, declined by 1.04% compared with the surrounding farmland. 3) Except for the high-standard farmland construction project in Dengta City, Dengta Irrigation Region, the productivity uniformity of the other nine sampling projects increased by 3.30%–88.10%. 4) Eight of the ten sampling projects belonged to Class 1, and two projects belonged to Class 2, showing that the effectiveness of high-standard farmland construction in Liaoning Province was quite good.There were some suggestions for high-standard farmland construction in the future. All departments should strengthen cooperation and formulate corresponding protection and development strategies suitable for local conditions. Additionally, lasting management mechanisms should also be established. Using remote sensing monitoring to assess the high-standard farmland construction effectiveness during the 12 th five-year period could provide experience and decision-making support for high-standard farmland construction in the future.展开更多
In the context that global grain security is still in very severe situation,the grain security situation in China is not optimistic as well. The " Red Line of Farmland Area" cannot completely solve the grain...In the context that global grain security is still in very severe situation,the grain security situation in China is not optimistic as well. The " Red Line of Farmland Area" cannot completely solve the grain security problems in China. We still need to seek new breakthroughs in the quality and yield of farmland. The construction of high standard capital farmland is the important premise to guarantee national grain security. On this basis,this paper has summarized the difficulties we are facing in the construction of high standard capital farmland,and has proposed the methods and measures to construct high standard capital farmland and lay a solid foundation for grain security in China.展开更多
On the basis of actual situations of Guangdong Province, using Factor Analysis Approach and Quantitative Analysis Method, we built index system by four factors, namely, extent of farmland connectivity, local financial...On the basis of actual situations of Guangdong Province, using Factor Analysis Approach and Quantitative Analysis Method, we built index system by four factors, namely, extent of farmland connectivity, local financial support, grain production capacity and farmland consolidation potential. Finally, we obtained that the areas with total scores of evaluation higher than 50 points are key construction areas of high-standard capital farmland in Guangdong Province. In total, there are 40 key construction areas, including 16 in plain areas of the Pearl River Delta, 9 in coastal regions of east of Guangdong, 10 in coastal regions of west of Guangdong, and 5 in northwest mountainous regions of Guangdong. Besides, we put forward construction direction of these 4 capital farmland areas.展开更多
科学确定高标准农田改造提升的重点区域是切实发挥高标准农田建设成效、提升粮食生产能力的关键。该研究以山东省乐陵市为研究区,运用层次分析法和优劣解距离法(technique for order preference by similarity to ideal solution,TOPSIS...科学确定高标准农田改造提升的重点区域是切实发挥高标准农田建设成效、提升粮食生产能力的关键。该研究以山东省乐陵市为研究区,运用层次分析法和优劣解距离法(technique for order preference by similarity to ideal solution,TOPSIS)构建考虑农田基础设施、耕地地力质量和水资源利用状况的高标准农田改造提升迫切性评价体系,并基于维度间的耦合协调度及其空间特征划定改造提升项目区。结果表明:1)乐陵市已建高标准农田占耕地面积的87.93%,西南和东部地区建设基础较好,南部和中部薄弱;高等地力农田面积较少,分布于中南地区和东北地区;水资源利用状况总体呈现“中部高、北部和南部低”的特征。2)农田基础设施、耕地地力质量和水资源利用状况3个维度间的耦合协调度指数为0.41~0.85,高值聚集分布于西南部、东部和东北部,低值聚集分布于南部和西北部,中值交叉分布于中西部和中南部地区。3)基于耦合协调度指数及其空间特征遴选出12个高标准农田改造提升项目区,根据指数分级结果从低到高确立为近期(8633.23 hm^(2))、中期(11004.64 hm^(2))、远期(9102.62 hm^(2))建设项目。结合各项目区立地条件和高障碍度、高频率障碍因子,建议围绕资金整合、水源保障、设施配套、地力提升、结构改良等方面分类推进。该方法对于高标准农田改造提升区域选择以及重点建设方向确定具有一定借鉴价值。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.
基金Under the auspices of National Key Research and Development Program(No.2017YFC0504202)Technological Basic Research Program of China(No.2017FY101301)China Scholarship Council(No.201806170212)
文摘At present, the large-scale construction of high-standard farmland in China has improved the quality of cropland and crop production and enhanced the eco-environmental security. To obtain a comprehensive understanding of high-standard farmland construction in Liaoning Province of China during the 12 th five-year period(2011–2015), through on-the-spot investigations and remote sensing monitoring, this study assessed the construction effectiveness of ten typical sampling projects in Liaoning Province and then presented practical suggestions. The main conclusions were as follows. 1) The ranges of increase in productivity of the ten sampling projects in Liaoning Province all surpassed the goal of 1500 kg/ha. 2) Among all sampling project areas, the levels of productivity stability of nine sampling projects were higher than that of the surrounding farmland in a severe drought year. However, the productivity stability of the high-standard farmland construction project in Faku County, Yiniupu Town, declined by 1.04% compared with the surrounding farmland. 3) Except for the high-standard farmland construction project in Dengta City, Dengta Irrigation Region, the productivity uniformity of the other nine sampling projects increased by 3.30%–88.10%. 4) Eight of the ten sampling projects belonged to Class 1, and two projects belonged to Class 2, showing that the effectiveness of high-standard farmland construction in Liaoning Province was quite good.There were some suggestions for high-standard farmland construction in the future. All departments should strengthen cooperation and formulate corresponding protection and development strategies suitable for local conditions. Additionally, lasting management mechanisms should also be established. Using remote sensing monitoring to assess the high-standard farmland construction effectiveness during the 12 th five-year period could provide experience and decision-making support for high-standard farmland construction in the future.
基金Supported by Soft Science Project of Anhui Provincial Department of Land and Natural Resources(2015801)
文摘In the context that global grain security is still in very severe situation,the grain security situation in China is not optimistic as well. The " Red Line of Farmland Area" cannot completely solve the grain security problems in China. We still need to seek new breakthroughs in the quality and yield of farmland. The construction of high standard capital farmland is the important premise to guarantee national grain security. On this basis,this paper has summarized the difficulties we are facing in the construction of high standard capital farmland,and has proposed the methods and measures to construct high standard capital farmland and lay a solid foundation for grain security in China.
基金Supported by the Project of Monitoring System for Farmland Quality Grade of Guangdong Province (2011B020313020)
文摘On the basis of actual situations of Guangdong Province, using Factor Analysis Approach and Quantitative Analysis Method, we built index system by four factors, namely, extent of farmland connectivity, local financial support, grain production capacity and farmland consolidation potential. Finally, we obtained that the areas with total scores of evaluation higher than 50 points are key construction areas of high-standard capital farmland in Guangdong Province. In total, there are 40 key construction areas, including 16 in plain areas of the Pearl River Delta, 9 in coastal regions of east of Guangdong, 10 in coastal regions of west of Guangdong, and 5 in northwest mountainous regions of Guangdong. Besides, we put forward construction direction of these 4 capital farmland areas.
文摘科学确定高标准农田改造提升的重点区域是切实发挥高标准农田建设成效、提升粮食生产能力的关键。该研究以山东省乐陵市为研究区,运用层次分析法和优劣解距离法(technique for order preference by similarity to ideal solution,TOPSIS)构建考虑农田基础设施、耕地地力质量和水资源利用状况的高标准农田改造提升迫切性评价体系,并基于维度间的耦合协调度及其空间特征划定改造提升项目区。结果表明:1)乐陵市已建高标准农田占耕地面积的87.93%,西南和东部地区建设基础较好,南部和中部薄弱;高等地力农田面积较少,分布于中南地区和东北地区;水资源利用状况总体呈现“中部高、北部和南部低”的特征。2)农田基础设施、耕地地力质量和水资源利用状况3个维度间的耦合协调度指数为0.41~0.85,高值聚集分布于西南部、东部和东北部,低值聚集分布于南部和西北部,中值交叉分布于中西部和中南部地区。3)基于耦合协调度指数及其空间特征遴选出12个高标准农田改造提升项目区,根据指数分级结果从低到高确立为近期(8633.23 hm^(2))、中期(11004.64 hm^(2))、远期(9102.62 hm^(2))建设项目。结合各项目区立地条件和高障碍度、高频率障碍因子,建议围绕资金整合、水源保障、设施配套、地力提升、结构改良等方面分类推进。该方法对于高标准农田改造提升区域选择以及重点建设方向确定具有一定借鉴价值。
