为了评价爱达荷州 Tom beall 流域16个农场实施11种资源管理方法的片蚀、细沟侵蚀和水质效应,我们使用一个地理信息系统来收集和检索所需的自然参数。利用一个线性规划模型确定出减少该流域整体侵蚀和非点源污染的最佳方法。采用农业非...为了评价爱达荷州 Tom beall 流域16个农场实施11种资源管理方法的片蚀、细沟侵蚀和水质效应,我们使用一个地理信息系统来收集和检索所需的自然参数。利用一个线性规划模型确定出减少该流域整体侵蚀和非点源污染的最佳方法。采用农业非点源模型(AGNPS)评价出最佳资源管理方法的水质效应。横坡或等高种植少耕法是减少农场级侵蚀速率最经济有效的方法。为把流域平均侵蚀速率降低至容许水平 T(11.2吨/公顷/年),除两个农场之外其他农场都应以少耕法取代传统耕作。若要把平均侵蚀减少到2T,则需要在11个农场实施免耕措施,并把两个农场改为永久植被。当平均侵蚀降低到 T 水平时,流域农场的总纯收入增加了1.5%。防治侵蚀大大减少了泥沙量、养分量和化学需氧量(COD)。采用2T水平的最佳资源管理方法使泥沙、养分和 COD 的平均值分别下降了45%、38%和24%;采用 T 水平最佳方法分别下降72%、64%和29%。展开更多
The emergence of the internet has transformed all areas of society.This includes the universe of scientific publications,with several publishers now exclusively focusing on the electronic format and open access model ...The emergence of the internet has transformed all areas of society.This includes the universe of scientific publications,with several publishers now exclusively focusing on the electronic format and open access model while expanding to a megajournal scope.in this context,the pandemic of predatory open access journals(POAJs)and meetings are of grave concern to the academic and research community.This new shift within academia produces a variety of new victims;namely,the authors themselves.in turn,scientific knowledge is often discredited,with the public placing less trust in science.Now more than ever,performing research with integrity and selecting a journal in which to publish requires close attention and expertise.The“predatory movement”has developed increasingly sophisticated techniques for misleading people into believing what seem to be credible professional layouts and legitimate invitations.initiatives such as the Jeffrey Beall’s list,the Cabell’s Scholarly Analytics and Think.Check.Submit offer some guidance to uncover the“parasitic”intervention of predatory journals and meetings,but specific education in this field is sorely needed.This work aims to review the main characteristics of predatory journals and meetings and to analyze this topic in the context of forensic and legal medicine research.展开更多
文摘为了评价爱达荷州 Tom beall 流域16个农场实施11种资源管理方法的片蚀、细沟侵蚀和水质效应,我们使用一个地理信息系统来收集和检索所需的自然参数。利用一个线性规划模型确定出减少该流域整体侵蚀和非点源污染的最佳方法。采用农业非点源模型(AGNPS)评价出最佳资源管理方法的水质效应。横坡或等高种植少耕法是减少农场级侵蚀速率最经济有效的方法。为把流域平均侵蚀速率降低至容许水平 T(11.2吨/公顷/年),除两个农场之外其他农场都应以少耕法取代传统耕作。若要把平均侵蚀减少到2T,则需要在11个农场实施免耕措施,并把两个农场改为永久植被。当平均侵蚀降低到 T 水平时,流域农场的总纯收入增加了1.5%。防治侵蚀大大减少了泥沙量、养分量和化学需氧量(COD)。采用2T水平的最佳资源管理方法使泥沙、养分和 COD 的平均值分别下降了45%、38%和24%;采用 T 水平最佳方法分别下降72%、64%和29%。
文摘The emergence of the internet has transformed all areas of society.This includes the universe of scientific publications,with several publishers now exclusively focusing on the electronic format and open access model while expanding to a megajournal scope.in this context,the pandemic of predatory open access journals(POAJs)and meetings are of grave concern to the academic and research community.This new shift within academia produces a variety of new victims;namely,the authors themselves.in turn,scientific knowledge is often discredited,with the public placing less trust in science.Now more than ever,performing research with integrity and selecting a journal in which to publish requires close attention and expertise.The“predatory movement”has developed increasingly sophisticated techniques for misleading people into believing what seem to be credible professional layouts and legitimate invitations.initiatives such as the Jeffrey Beall’s list,the Cabell’s Scholarly Analytics and Think.Check.Submit offer some guidance to uncover the“parasitic”intervention of predatory journals and meetings,but specific education in this field is sorely needed.This work aims to review the main characteristics of predatory journals and meetings and to analyze this topic in the context of forensic and legal medicine research.
