- 1、本文档共5页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
半干旱农田地区DPM模型适用性初步研究-水土保持通报
31 3 Vol. 31, No . 3
2011 6 Bulletin of Soil and Water Conservation Jun. , 2011
DPM
赖志强, 张承中, 高建华, 刘立忠
( , 10055)
: DPM ,
DPM ,
4 ,
, DPM
, DPM ,
: ; ; DPM ;
: B : 1000-288X(2011) 03-0126-05 : X833
Applicability of DPM Model to Farmaland in Sem-i arid Area
LAI Zhi-qiang, ZHAN G Cheng- zhong, GAO Jian- hua, LIU L-i zhong
(School of Env ironmental and Municip al Engineering ,
X ian University of A rchitecture and Technology , X i an, Shaanx i 10055, China)
Abstract: DPM model, built on the principles that the dust emission flux is proportional to the dust saltation flux and
the kinetic energy flux of saltating particles, is composed of two components: the saltation flux of soil microag-
gregates and dust particle emission. To validate the applicability of DPM to sem-i arid areas, w e selected four
typical types of farmlands( soils) in the sem-i arid north-central Shaanxi Province, measured and calculated the
surface aerodynamic roughness, microaggregate distribution of surface soils, friction velocity, and threshold
friction velocity on each study area, and comparatively analyzed the DPM model simulation accuracy betw een
the different soil types and betw een different seasons. The results show ed that DPM model can be used to
simulate dust emission flux of the different soil types in the sem-i arid farmlands, and can better simulate dust
emission flux for the summer and winter seasons in the sem-i arid farmlands.
Keywords: sem-i arid areas; farmland; DPM model; dust emission
, ,
您可能关注的文档
最近下载
- 必威体育精装版人教版小学六年级下册音乐全册教案.doc
- 汽车构造拆装实习报告.pdf VIP
- 《分香蕉》优质课课件(北师大版数学二年级上册).pptx VIP
- 天然气蒸汽锅炉安全操作规程.docx
- 防防呆法防错法IE七大手法演示文稿.ppt VIP
- 幼儿园大班数学活动《小动物住新房》.ppt VIP
- 党的二十届三中全会精神测试题300道(单选、多选、判断、填空).docx VIP
- 劳动项目七 洗碗筷(课件)二年级下册劳动人教版.ppt
- 医院综合病房楼空调系统施工组织设计方案范本.doc
- 平方根与立方根的运算专项训练(20题)-重要笔记七年级数学下学期重要考点练习(人教版)(含答案析).docx
文档评论(0)