Traditional folk dwellings in Yimeng mountainous areas in south Shandong were studied,the formation factors and characteristics analyzed according to the existing folk dwellings,then advantages and disadvantages of th...Traditional folk dwellings in Yimeng mountainous areas in south Shandong were studied,the formation factors and characteristics analyzed according to the existing folk dwellings,then advantages and disadvantages of thatched cottages in the local area expounded,which is signifi cant for the inheritance of traditional folk dwellings in south Shandong and the folk dwelling design in the new countryside.展开更多
[ Objective] The study aimed to reveal the output characteristics of non-point nitrogen and phosphorus from a typical small watershed in Yimeng mountainous area during a rainstorm. [Method] The dynamic changes of poll...[ Objective] The study aimed to reveal the output characteristics of non-point nitrogen and phosphorus from a typical small watershed in Yimeng mountainous area during a rainstorm. [Method] The dynamic changes of pollutant concentration, precipitation and flow during the rainstorm on August 12, 2010 were monitored at the outlet of Menglianggu watershed. [ Result] During the rainstorm, the generation of runoff was sudden and ephemeral, and the peak of the runoff lagged behind that of rainfall intensity; the concentration of AN and TN increased firstly and then tended to be stable, while NN concentration had no significance change at the beginning of the rainfall, then improved gradually and tended to be stable fi- nally; DOP concentration had no obvious change during the rainstorm, but the concentration of DIP, DP, PP and TP rose firstly and then tended to be stable, and the peak values appeared before the peak of the flow. In addition, the output concentration of TN and TP was far higher than the standard concentration of water eutrophication. [ Conclusion] The study can provide scientific references for the reasonable control of non-point source pollution pollution in Yimeng mountainous area.展开更多
According to the relevant data from Chinese Statistical Yearbook, the overall agricultural structure and the internal structure of agriculture in Yimeng Mountainous area are analyzed. The status quo of the agricultura...According to the relevant data from Chinese Statistical Yearbook, the overall agricultural structure and the internal structure of agriculture in Yimeng Mountainous area are analyzed. The status quo of the agricultural and the internal structure of agriculture in Yimeng Mountainous area are analyzed through the method of comprehensive appraisal of the improved factors. The safety coefficient of the comprehensive appraisal is from 2.626 696 to 4.987 546,which is exclude in the safety extent, so it needs adjusting. At the same time, the internal relations of the internal structure of agriculture in Yimeng Mountainous area are studied by using the relativity analysis. The overall agricultural structure of Yimeng Mountainous area is in negative correlation to planting structure and forestry structure, and in positive correlation to livestock breeding industry; the plating structure is in negative correlation to livestock breeding structure and in positive correlation to forestry structure and the forestry structure is in negative correlation to livestock breeding structure.展开更多
This contribution analyzes the similarities and differences between the measured activities of 137Cs and excess 210Pb(210Pbex) in the cultivated brown and cinnamon soils of the Yimeng Mountain area, discusses the infl...This contribution analyzes the similarities and differences between the measured activities of 137Cs and excess 210Pb(210Pbex) in the cultivated brown and cinnamon soils of the Yimeng Mountain area, discusses the influence of soil texture on the measurement of 210Pbex, and presents differences between the two types of soils. Fields A and B were selected to represent the fields that contain cultivated brown and cinnamon soils, respectively. From either study field, one site of sectioned core and six bulk cores were collected to measure 137Cs levels, 210Pbex levels, and the particle-size composition of soil samples. Three undisturbed soil samples were collected to measure capillary and aeration porosities. The 137Cs inventories for the two study fields are very similar. The 137Cs is a man-made radionuclide, which means that its measured levels for soils are unaffected by soil texture. In contrast, levels of the naturally occurring 210Pbex of soils from Field A were lower than those of Field B by about 50%. In contrast to aquatic sediments, levels of 210Pbex in terrestrial surface soils are affected by the emanation of 222Rn from the soils. It can be assumed that the coarser the soils, the greater the emanation of 222Rn; in addition, the lower the measured 210Pbex, the greater the underestimate of this value. The cultivated brown soils in Field A are coarser than the cultivated cinnamon soils in Field B. As a result, 222Rn in Field A will diffuse more easily into the atmosphere than that in Field B. As a consequence, the measured 210Pbex in soils from Field A is much lower than the actual value, whereas the value measured for Field B is much closer to the actual value.展开更多
AS President Pan Qinyue was walking down the hallway of Linyi Maternity and Child Care Center, she saw several young rural women waiting outside the room for premarital health checkups. She walked over and began to ta...AS President Pan Qinyue was walking down the hallway of Linyi Maternity and Child Care Center, she saw several young rural women waiting outside the room for premarital health checkups. She walked over and began to talk to them, "Do you know the benefits of a premarital checkup?"展开更多
基于沂蒙山区祊河流域不同土地利用方式下土壤理化性质分析,采用主成分分析法(principal component analysis,PCA)建立最小数据集(minimum data set,MDS),利用土壤质量指数(soil quality index,SQI)研究了该区不同土地利用方式下的土壤...基于沂蒙山区祊河流域不同土地利用方式下土壤理化性质分析,采用主成分分析法(principal component analysis,PCA)建立最小数据集(minimum data set,MDS),利用土壤质量指数(soil quality index,SQI)研究了该区不同土地利用方式下的土壤质量状况。结果表明:(1)不同土地利用方式下土壤物理性质变化明显。林地的土壤容重最小,砂粒含量最少,黏粒含量最多,土壤含水量较高,而园地正好相反;耕地土壤容重较大,砂粒和黏粒含量都较少,土壤含水量最高,而草地正好相反。(2)不同土地利用方式下土壤化学性质差异显著。土壤pH值由大到小依次为草地、林地、耕地、园地;林地和草地的土壤有机质、全氮、碱解氮和全钾含量均较高,而速效磷含量均较低;林地的土壤全磷含量最低而速效钾含量最高,草地正好相反;耕地和园地的土壤有机质、全氮、碱解氮和全钾含量均较低,而全磷、速效磷含量较高,耕地的速效钾含量较高而园地的最低;研究区域耕地和园地的土壤有机质、全氮和速效钾含量处于相对缺乏状态。(3)不同土地利用方式的土壤质量指数为SQI_(林地)(0.64)>SQI_(草地)(0.51)>SQI_(耕地)(0.35)>SQI_(园地)(0.23),土壤全氮含量是限制研究区域耕地、园地土壤质量的关键因素。(4)由土壤容重、砂粒含量、全氮含量构成的最小数据集(MDS)能够替代全量数据集(total data set,TDS)评价研究区域土壤质量。展开更多
基金Sponsored by Key Course of Northeast Forestry University"Furniture and Interior Decoration Materials"
文摘Traditional folk dwellings in Yimeng mountainous areas in south Shandong were studied,the formation factors and characteristics analyzed according to the existing folk dwellings,then advantages and disadvantages of thatched cottages in the local area expounded,which is signifi cant for the inheritance of traditional folk dwellings in south Shandong and the folk dwelling design in the new countryside.
基金Supported by Science and Technology Innovation Project of Linyi City(201011019)Science and Technology Key Project of Shandong Province(2009GG10006015)Science and Technology Project of Huaihe River Commission,the Ministry of Water Resources (SBJ2010003)
文摘[ Objective] The study aimed to reveal the output characteristics of non-point nitrogen and phosphorus from a typical small watershed in Yimeng mountainous area during a rainstorm. [Method] The dynamic changes of pollutant concentration, precipitation and flow during the rainstorm on August 12, 2010 were monitored at the outlet of Menglianggu watershed. [ Result] During the rainstorm, the generation of runoff was sudden and ephemeral, and the peak of the runoff lagged behind that of rainfall intensity; the concentration of AN and TN increased firstly and then tended to be stable, while NN concentration had no significance change at the beginning of the rainfall, then improved gradually and tended to be stable fi- nally; DOP concentration had no obvious change during the rainstorm, but the concentration of DIP, DP, PP and TP rose firstly and then tended to be stable, and the peak values appeared before the peak of the flow. In addition, the output concentration of TN and TP was far higher than the standard concentration of water eutrophication. [ Conclusion] The study can provide scientific references for the reasonable control of non-point source pollution pollution in Yimeng mountainous area.
文摘According to the relevant data from Chinese Statistical Yearbook, the overall agricultural structure and the internal structure of agriculture in Yimeng Mountainous area are analyzed. The status quo of the agricultural and the internal structure of agriculture in Yimeng Mountainous area are analyzed through the method of comprehensive appraisal of the improved factors. The safety coefficient of the comprehensive appraisal is from 2.626 696 to 4.987 546,which is exclude in the safety extent, so it needs adjusting. At the same time, the internal relations of the internal structure of agriculture in Yimeng Mountainous area are studied by using the relativity analysis. The overall agricultural structure of Yimeng Mountainous area is in negative correlation to planting structure and forestry structure, and in positive correlation to livestock breeding industry; the plating structure is in negative correlation to livestock breeding structure and in positive correlation to forestry structure and the forestry structure is in negative correlation to livestock breeding structure.
基金financially supported by the National Natural Science Foundation of China(Nos.41102224,41101259 and 41101206)
文摘This contribution analyzes the similarities and differences between the measured activities of 137Cs and excess 210Pb(210Pbex) in the cultivated brown and cinnamon soils of the Yimeng Mountain area, discusses the influence of soil texture on the measurement of 210Pbex, and presents differences between the two types of soils. Fields A and B were selected to represent the fields that contain cultivated brown and cinnamon soils, respectively. From either study field, one site of sectioned core and six bulk cores were collected to measure 137Cs levels, 210Pbex levels, and the particle-size composition of soil samples. Three undisturbed soil samples were collected to measure capillary and aeration porosities. The 137Cs inventories for the two study fields are very similar. The 137Cs is a man-made radionuclide, which means that its measured levels for soils are unaffected by soil texture. In contrast, levels of the naturally occurring 210Pbex of soils from Field A were lower than those of Field B by about 50%. In contrast to aquatic sediments, levels of 210Pbex in terrestrial surface soils are affected by the emanation of 222Rn from the soils. It can be assumed that the coarser the soils, the greater the emanation of 222Rn; in addition, the lower the measured 210Pbex, the greater the underestimate of this value. The cultivated brown soils in Field A are coarser than the cultivated cinnamon soils in Field B. As a result, 222Rn in Field A will diffuse more easily into the atmosphere than that in Field B. As a consequence, the measured 210Pbex in soils from Field A is much lower than the actual value, whereas the value measured for Field B is much closer to the actual value.
文摘AS President Pan Qinyue was walking down the hallway of Linyi Maternity and Child Care Center, she saw several young rural women waiting outside the room for premarital health checkups. She walked over and began to talk to them, "Do you know the benefits of a premarital checkup?"
文摘基于沂蒙山区祊河流域不同土地利用方式下土壤理化性质分析,采用主成分分析法(principal component analysis,PCA)建立最小数据集(minimum data set,MDS),利用土壤质量指数(soil quality index,SQI)研究了该区不同土地利用方式下的土壤质量状况。结果表明:(1)不同土地利用方式下土壤物理性质变化明显。林地的土壤容重最小,砂粒含量最少,黏粒含量最多,土壤含水量较高,而园地正好相反;耕地土壤容重较大,砂粒和黏粒含量都较少,土壤含水量最高,而草地正好相反。(2)不同土地利用方式下土壤化学性质差异显著。土壤pH值由大到小依次为草地、林地、耕地、园地;林地和草地的土壤有机质、全氮、碱解氮和全钾含量均较高,而速效磷含量均较低;林地的土壤全磷含量最低而速效钾含量最高,草地正好相反;耕地和园地的土壤有机质、全氮、碱解氮和全钾含量均较低,而全磷、速效磷含量较高,耕地的速效钾含量较高而园地的最低;研究区域耕地和园地的土壤有机质、全氮和速效钾含量处于相对缺乏状态。(3)不同土地利用方式的土壤质量指数为SQI_(林地)(0.64)>SQI_(草地)(0.51)>SQI_(耕地)(0.35)>SQI_(园地)(0.23),土壤全氮含量是限制研究区域耕地、园地土壤质量的关键因素。(4)由土壤容重、砂粒含量、全氮含量构成的最小数据集(MDS)能够替代全量数据集(total data set,TDS)评价研究区域土壤质量。
