简介：Managementoftheunderstorylandisaneconomicformtodevelopcultivationandbreedinginmakinguseoftheforestecologicalenvironment.Itisalsoanimportantmeanstoincreasetheincomeofforestfarmersintheforestryregionsafterthereformofforestryrealrights.Thispaperinvestigatedthemanagementstatusofunderstoryland,andanalyzedtheimpactsanddestructionofitsimpropermanagementupontheforestecologyenvironment.Themanagementrightoftheunderstorylandisarestrictedrightofproperty,becausethemanagementisrelatedtotheecologyprotectionofforestandwoodland.Inadditiontoprivatepropertyrights,itshouldalsocomplywiththearrangementofnationalforestmanagement.Therefore,whileencouraginganddevelopingtheunderstorylandmanagement,it’simportanttoestablishalegalsystemforexecutingthemanagementrights,andthemanagementoftheunderstorylandshouldbeincludedinthescopeoftheforestrymanagement.

简介：managetodo设法做【经典例句】Howdidyoumanagetosteerbythatdifficultquestion？你是怎样成功回避了那个棘手的问题的？

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简介：合理施用氮肥是夺取水稻高产的基本条件之一。在氮肥施用中,目前普通存在着施用量过多或过少,施用时间不合理,氮肥利用率低等问题,不仅影响了水稻产量的提高和米质的改善,而且还污染了环境,降低了氮肥的使用效益。自80年代开始,模拟优化技术引入作物（水稻）生产系统后,已研制出了许多水稻高产栽培技术模式,如“双季杂交稻高产栽培模式”、“双季稻—冬作高产栽培模式”等。这些模式对水稻的施氮量和施氮方法虽有所改进,并取得了明显的增产增收效果,但均为经验模式,未突破传统的施肥概念。近年来,以国际水稻研究所引进的施氮技术模拟优化软件MANAGE-N,充分考虑了不同品种（作物参数）、不同气候条件（光、温、降水等气候因子）、不同土壤条件（土壤参数）等影响水稻生产发育的各种因素,因而具有更大的适应性

简介：AbstractIatrogenic femoral artery pseudoaneurysm is a common complication of the endovascular procedures. Manual compression and thrombin injection are the conventional techniques to occlude the pseudoaneurysms. However, there are still some failed cases that applied these treatment options. The aim of the study is to seek a potential and alternative method with ProGlide system to close the pseudoaneurysm. During April 2018 to February 2019, 2 patients with iatrogenic pseudoaneurysm of the superficial femoral were treated with the suture-base closure device-ProGlide. After punctured the pseudoaneurysm and placed a 6-F sheath, the guide wire was placed in the right femoral artery via the access of the pseudoaneurysm neck. Then the pseudoaneurysm neck was sutured by ProGlide to occlude the blood supply to the pseudoaneurysm. These 2 patients were cured with no complications and complaints, which revealed that percutaneous suture technique with ProGlide at the neck level of pseudoaneurysm provides a novel method for the management of vascular access pseudoaneurysm, especially in those with a wide and short neck.

简介：主题摘要：在工程总承包模式下确定物资的集中采购与供应，明确各有关部门的职责，做到合理分工、有效管理，为工程施工服务并带来更大的利益。