Controlling Water Pollution through University of Maryland Extension's Efforts in Watershed and

来源 :2009杨凌国际农业科技论坛 | 被引量 : 0次 | 上传用户:yucol
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Watersheds and their inherent water resources are complex natural and human affected ecosystems and as such often require complex and interwoven management structures to accomplish the goals of the stakeholders.Watersheds do not fit into the neat management packages of cities, counties, states or provinces or even countries but are defined by topographic or basin boundaries.Thus, management of most watersheds requires the often complicated and tenuous cooperation of multiple governmental units.These governmental bodies may have very different goals and regulations for the water resources within their jurisdictions and see their needs as quite different from their neighbors needs.
其他文献
为充分利用山区资源优势,加快山区贫困户的脱贫步伐,探索四季豆夏季栽培技术,1998年我们在平均海拔 In order to make full use of the advantages of mountainous resource
10年前,女警官吴玫的妹妹自杀,妹夫涉嫌杀人被判刑。吴玫先后写了11000封申诉信,为妹夫申冤。10年切盼加上工作和家庭的重挫,吴玫终于等到了妹夫无罪的判决书。 Ten years a
目的 探讨对老年粗隆间骨折患者运用综合护理干预对预防术后下肢静脉血栓形成的护理效果.方法 对照组患者于围手术期运用常规护理,观察组运用综合护理干预.结果 观察组的术后
长春大型春萝卜是韩国汉城种苗株式会社选育的优良品种。1997年引入我地种植,表现早熟丰产、优质抗病,综合性状优于目前种植的三月萝卜、南衅州及其它品种。 特征特性: 1、植株生长势
  Based on data envelopment analysis method, this paper calculates the technical efficiency and scale efficiency of financial resources allocation in Chinas r
会议
  This paper, drawing on behavioral economics analysis of the prospect theory framework, constructed the agricultural peasant abstract model of risk attitudes
会议
目的 探究早期康复训练护理对尺桡骨双骨折患者前臂功能恢复的影响.方法 共纳入52例患者,信息输入Excel,奇数住院号为对照组,行常规管理;偶数住院号为试验组,行早期康复训练
Four critical cases of resection of pheo-chromocytma performed in 1988 were pre-sented.The Swan-Ganz catheter wasinserted in the internal jugular vein,and Fou
地球暖化问题吵得沸沸扬扬,长久以来被认为是十分可疑的点子而遭到排挤,透过“地质工程”方式来改变气候,最近有播土重来之势.
目的 探究胆结石患者围手术期应用临床护理路径的效果.方法 选择86例进行手术治疗的胆结石患者为研究对象,均在2019年1月-2020年6月入院,随机分组基准为奇偶数列法,围手术期