Agricultural eco-efficiency is an important indicator to measure the sustainable development and high-quality development of agriculture.Based on the agricultural input-output data of 37 districts(counties)in Chongqin...Agricultural eco-efficiency is an important indicator to measure the sustainable development and high-quality development of agriculture.Based on the agricultural input-output data of 37 districts(counties)in Chongqing from 2004 to 2019,this paper uses the static SBM model and the DDF-BML index method to calculate the agricultural eco-efficiency of each district and county in Chongqing and conduct a comparative analysis.The comprehensive analysis of static and dynamic calculation results shows that the agricultural eco-efficiency of Chongqing is low,the agricultural input-output efficiency of various districts and counties is insufficient,and slack variables are common,so the ability of agricultural sustainable development still needs to be improved.The main sources of agricultural eco-efficiency are the progress of agricultural green technology and the efficiency of agricultural green technology.However,as far as the actual situation of Chongqing is concerned,the efficiency of agricultural green technology shows a downward trend,which has an inhibitory effect on the improvement of agricultural eco-efficiency.Therefore,in the process of agricultural ecological development in the future,Chongqing will focus on improving the efficiency of agricultural green technology as a starting point,implement agricultural technology innovation and promotion,improve the level of farmers’science and technology and culture,and achieve"technology to the countryside,demonstration to households,and application to the country."At the same time,it is necessary to further improve the construction of agricultural and rural infrastructure,and promote the"outward migration"of frontier technologies in agricultural production to radiate agricultural development in surrounding districts and counties.展开更多
目的探究血清壳多糖酶3样蛋白1(chitinase-3-like protein 1,CHI3L1)水平与不同性别腹膜透析(peritoneal dialysis,PD)患者血管钙化的相关性。方法本研究为横断面研究,研究对象为116例行规律PD治疗超过6个月的慢性肾衰竭患者,利用侧位...目的探究血清壳多糖酶3样蛋白1(chitinase-3-like protein 1,CHI3L1)水平与不同性别腹膜透析(peritoneal dialysis,PD)患者血管钙化的相关性。方法本研究为横断面研究,研究对象为116例行规律PD治疗超过6个月的慢性肾衰竭患者,利用侧位腹平片评估入组患者腹主动脉钙化(abdominal aortic calcification,AAC)程度。根据Kauppila评分系统行AAC评分,AAC评分<4为低AAC评分组,AAC评分≥4为高AAC评分组。收集患者的人口统计学资料、实验室化验数据。利用生物电阻抗原理测定体成分。通过酶联免疫吸附法测定血清CHI3L1。结果共纳入男性PD患者56例、女性60例,平均年龄(57.0±13.7)岁,61例(52.6%)患者AAC评分≥4。女性PD患者血清CHI3L1水平高于男性(Z=-3.435,P=0.001)。男性PD患者高AAC评分组的血清CHI3L1水平高于低AAC评分组,但差异不显著[(285.9±100.3)ng/ml比(238.4±106.8)ng/ml,t=-1.701,P=0.095];女性PD患者高AAC评分组的血清CHI3L1水平高于低AAC评分组[437.7(314.2,459.2)ng/ml比273.4(177.6,368.6)ng/ml,Z=-3.600,P<0.001]。女性PD患者血清CHI3L1与AAC评分呈正相关(r=0.590,P<0.001);男性PD患者血清CHI3L1与AAC评分相关性不显著(r=0.194,P=0.155)。多元Logistic回归分析提示血清CHI3L1(OR=1.012,95%CI:1.005~1.019,P=0.001)、血磷>1.45mmol/L(OR=5.596,95%CI:1.345~23.278;P=0.018)是女性PD患者AAC评分≥4的独立影响因素;年龄(OR=1.138,95%CI:1.026~1.262,P=0.014)、舒张压(OR=0.927,95%CI:0.861~0.997,P=0.042)、血清超敏C反应蛋白(OR=1.169,95%CI:1.003~1.361;P=0.046)及骨骼肌含量(OR=0.829,95%CI:0.696~0.987,P=0.035)是男性PD患者AAC评分≥4的独立影响因素。结论高水平血清CHI3L1与女性PD患者AAC独立相关,但不是男性PD患者AAC的独立影响因素。展开更多
基金supported by the Natural Science Foundation of Fujian Province(Grant No.2022J01320)。
文摘Agricultural eco-efficiency is an important indicator to measure the sustainable development and high-quality development of agriculture.Based on the agricultural input-output data of 37 districts(counties)in Chongqing from 2004 to 2019,this paper uses the static SBM model and the DDF-BML index method to calculate the agricultural eco-efficiency of each district and county in Chongqing and conduct a comparative analysis.The comprehensive analysis of static and dynamic calculation results shows that the agricultural eco-efficiency of Chongqing is low,the agricultural input-output efficiency of various districts and counties is insufficient,and slack variables are common,so the ability of agricultural sustainable development still needs to be improved.The main sources of agricultural eco-efficiency are the progress of agricultural green technology and the efficiency of agricultural green technology.However,as far as the actual situation of Chongqing is concerned,the efficiency of agricultural green technology shows a downward trend,which has an inhibitory effect on the improvement of agricultural eco-efficiency.Therefore,in the process of agricultural ecological development in the future,Chongqing will focus on improving the efficiency of agricultural green technology as a starting point,implement agricultural technology innovation and promotion,improve the level of farmers’science and technology and culture,and achieve"technology to the countryside,demonstration to households,and application to the country."At the same time,it is necessary to further improve the construction of agricultural and rural infrastructure,and promote the"outward migration"of frontier technologies in agricultural production to radiate agricultural development in surrounding districts and counties.
