Study of Sediment Yield from Slope and Gully Erosion After Reclamation of Forest Land
利用在子午岭林区布设的林地开垦后全梁坡、全沟坡(不接收上万来水)和全坡面径流小区,研究了子午岭林区林地开垦后坡沟侵蚀产沙关系。结果表明,子午岭林区林地开垦后,沟坟接收上方来水来沙的侵蚀产沙量是沟坡不接收上方米水来沙侵蚀产沙量的1.95~3.9倍;全坡面侵蚀产沙在梁坡来水来沙的影响下,侵蚀产沙量增加10%~35%;沟坡侵蚀产沙量占总侵蚀产沙量的53%左右,但其中有20%的侵蚀产沙量是由于粱坡坡面径流下沟造成的,故受人类活动强烈影响的梁坡,实质上造成了68 ...
白红英, 唐克丽, 郑粉莉
core
[Resin short post retention for reattachment of a fractured crown in a young permanent tooth with complicated crown-root fracture and root fracture: a case report]. [PDF]
Wang Y, Chang H, Zhang B, Liao Z.
europepmc +1 more source
[Effect of modified titanium loaded with endothelial progenitor cells-exosomes on osteogenic and angiogenic differentiations of adipose-derived stem cells]. [PDF]
Wang J, Tang L, Liu H, Qiu Y.
europepmc +1 more source
Gully-slope Road Building Technology and Erosion Controlling System
黄土高原沟壑区沟坡开发的关键是加强农业基础设施建设,其中最重要的是改善交通条件。本文通过调查,定位监测和野外人工径流冲刷试验,结合土壤容重试验资料,在对沟坡道路侵蚀进行分类研究基础上,对不同沟坡道路侵蚀的影响因素进行综合分析,首次系统地总结出道路防蚀措施的技术体系;提出道路规划设计的技术指标,施工定线的作业方法 ...
郑世清
core
[目的] 为研究降雨、汇流和坡度对浅沟侵蚀的影响,实施精确的水土保持措施。[方法] 通过室内模拟降雨和汇流试验,设计2个降雨强度(50,100 mm/h)和2个坡度(3°,7°),并在4种降雨强度和坡度组合下设置5个依次增加的汇流强度(15,30,45,60,75 L/min),分析降雨、汇流和坡度及其交互作用对浅沟坡面侵蚀的影响,明确浅沟侵蚀对坡面侵蚀的贡献。[结果] (1)坡度和汇流强度对浅沟坡面侵蚀的影响均大于降雨强度。当降雨强度由50 mm/h增加到100 mm/h时,3°和7 ...
耿华杰 +6 more
doaj
[Application and challenges of tissue engineered scaffolds in treatment of long-segment laryngotracheal stenosis]. [PDF]
Yu Q +7 more
europepmc +1 more source
[Clinical efficacy of in-situ crown reattachment technique combined with pulpotomy in the treatment of complica-ted crown-root fractures of young permanent anterior teeth]. [PDF]
Su X, Guo Q, Ren M, Liu F.
europepmc +1 more source
Expert consensus on clinical management for early childhood caries. [PDF]
Zhang Q +9 more
europepmc +1 more source
[Clinical observation of free palmaris longus tendon graft reconstruction in treatment of gouty tophus erosion lesions in flexor tendon of wrist and hand]. [PDF]
Wang G +9 more
europepmc +1 more source
[Double-layer ceramic technique for restoring severely discolored nonvital maxillary anterior teeth: a case report]. [PDF]
Chen J, Yin L.
europepmc +1 more source

