Under the water resources perspective,coupling coordination of economy-ecology-society system in Xinjiang was taken as the research object. By building the coupling evaluation index system of the water resources-econo...Under the water resources perspective,coupling coordination of economy-ecology-society system in Xinjiang was taken as the research object. By building the coupling evaluation index system of the water resources-economy-ecology-society system,quantitative evaluation and analysis of the coupling coordination of the water resources-economy-ecology-society system from 2001 to 2014 were conducted. The results showed that benefit indexes of economic system and social system grew rapidly,while benefit indexes of water resources system and ecosystem fluctuated smoothly from 2001 to 2014; coupling state of the whole system was at rival stage,and coupling coordination was reluctant coordination type,and the coupling index was slightly higher than the coupling coordination index. Moreover,it showed that the more the coupling systems,the lower indices of coupling and the coupling coordination.展开更多
采用盆栽试验,研究了不同供钾水平下不同生育时期水分状况对大豆产量及品质的影响。结果表明:除营养生长期涝害能一定程度上增加蛋白质含量外,开花期和结荚期土壤干旱或涝害胁迫均降低了蛋白质及脂肪的含量;钾肥有提高大豆脂肪、降低蛋...采用盆栽试验,研究了不同供钾水平下不同生育时期水分状况对大豆产量及品质的影响。结果表明:除营养生长期涝害能一定程度上增加蛋白质含量外,开花期和结荚期土壤干旱或涝害胁迫均降低了蛋白质及脂肪的含量;钾肥有提高大豆脂肪、降低蛋白质含量的趋势,但只有在水分供应适宜时,钾肥效果才显著。各生育时期土壤干旱或涝害胁迫均影响大豆产量的形成,但干旱引起的减产程度要大于涝害。干旱胁迫对各生育时期引起的减产程度表现为:结荚期>开花期>营养生长期;而涝害胁迫对各生育时期所引起的减产程度则是相近的。无论何生育时期控水,本试验中产量最优的处理是W 2K3(适宜水分+0.136 gK2O/kg土),而经济系数最优的处理是CK(适宜水分+0.068 g K2O/kg土)。钾肥能促进大豆子粒产量的形成,但只有在营养生长期控水条件下,钾肥才显著地影响大豆产量的形成,而开花期、结荚期控水,钾肥的产量效应并不显著;开花期、结荚期控水条件下,水钾互作都显著地影响大豆子粒产量的形成,但营养生长期控水条件下水钾互作对大豆产量的影响未达到显著差异。展开更多
基金Supported by"Effect Evaluation of Xinjiang Implementing the First Round of Subsidy Reward Mechanism Policy of Grassland Eco-protection" from Special Item of Xinjiang Animal Husbandry DepartmentPublic Welfare Scientific Research Project of Xinjiang Uygur Autonomous Region(XK201516)
文摘Under the water resources perspective,coupling coordination of economy-ecology-society system in Xinjiang was taken as the research object. By building the coupling evaluation index system of the water resources-economy-ecology-society system,quantitative evaluation and analysis of the coupling coordination of the water resources-economy-ecology-society system from 2001 to 2014 were conducted. The results showed that benefit indexes of economic system and social system grew rapidly,while benefit indexes of water resources system and ecosystem fluctuated smoothly from 2001 to 2014; coupling state of the whole system was at rival stage,and coupling coordination was reluctant coordination type,and the coupling index was slightly higher than the coupling coordination index. Moreover,it showed that the more the coupling systems,the lower indices of coupling and the coupling coordination.
文摘采用盆栽试验,研究了不同供钾水平下不同生育时期水分状况对大豆产量及品质的影响。结果表明:除营养生长期涝害能一定程度上增加蛋白质含量外,开花期和结荚期土壤干旱或涝害胁迫均降低了蛋白质及脂肪的含量;钾肥有提高大豆脂肪、降低蛋白质含量的趋势,但只有在水分供应适宜时,钾肥效果才显著。各生育时期土壤干旱或涝害胁迫均影响大豆产量的形成,但干旱引起的减产程度要大于涝害。干旱胁迫对各生育时期引起的减产程度表现为:结荚期>开花期>营养生长期;而涝害胁迫对各生育时期所引起的减产程度则是相近的。无论何生育时期控水,本试验中产量最优的处理是W 2K3(适宜水分+0.136 gK2O/kg土),而经济系数最优的处理是CK(适宜水分+0.068 g K2O/kg土)。钾肥能促进大豆子粒产量的形成,但只有在营养生长期控水条件下,钾肥才显著地影响大豆产量的形成,而开花期、结荚期控水,钾肥的产量效应并不显著;开花期、结荚期控水条件下,水钾互作都显著地影响大豆子粒产量的形成,但营养生长期控水条件下水钾互作对大豆产量的影响未达到显著差异。