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喀左县无名河项目区水土保持综合防治效益分析 被引量:3
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作者 高云彪 宫冰 于海军 《科技创新导报》 2009年第6期131-132,共2页
喀左县无名河项目区是2003年列入国家水土保持重点建设工程,治理时限为五年,历经五年综合治理,至2007年底治理工程全部竣工,分析时段为:治理期和竣工后10年。各项效益计算均按中华人民共和国国家标准《水土保持综合治理效益计算方法》... 喀左县无名河项目区是2003年列入国家水土保持重点建设工程,治理时限为五年,历经五年综合治理,至2007年底治理工程全部竣工,分析时段为:治理期和竣工后10年。各项效益计算均按中华人民共和国国家标准《水土保持综合治理效益计算方法》有关要求。分析结果表明:经济效益、蓄水保土效益、生态效益、社会效益都有较大提高。 展开更多
关键词 水土保持 综合防治效益 分析
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PREMISE Insect Model: Integrated Population Dynamics Model for the Ex-ante Evaluation of IPM against Insect Pest
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作者 Wil Hennen Aude Alaphilippe 《Journal of Agricultural Science and Technology(B)》 2015年第4期231-240,共10页
Codling moth Cydiapomonella L. is the most serious pest of apple and pear worldwide and causes damage and decreased yields. To minimize this risk, IPM tools can be applied to reduce the use of chemicals. A cost-effect... Codling moth Cydiapomonella L. is the most serious pest of apple and pear worldwide and causes damage and decreased yields. To minimize this risk, IPM tools can be applied to reduce the use of chemicals. A cost-effective application of IPM depends on the number of insects at the time of application. Several conditions and factors influence the lifecycle and numbers of generations within a year. In order to perform ex-ante evaluations of the cost-effectiveness of IPM measures against pest insects, the generic PREMISE insect model has been developed, which integrates insect's population dynamics, the climate and other conditions, applied measures, economics, environment and human health (residues). This paper describes these components of the PREMISE insect model, and how these components interact to assess the cost-effectiveness of IPM measures and the effects on the environment and human health. Codling moth is used as a case study for this generic model. 展开更多
关键词 IPM integrated model population dynamics ECONOMICS environment RESIDUES codling moth.
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