基于微润灌的固沙植物生长动态及灌溉模式研究
Project Number51409137
范严伟
Abstract风沙灾害是我国尤其是西北地区最为严重的生态环境问题,植物固沙是防治风沙灾害和构建风沙区生态屏障的最有效的首选措施。土壤水分是固沙植物存活、生长的最大限制因子。合理灌溉是防止植被退化和保证固沙效果持久的有效措施。微润灌采用半透膜技术进行地下灌溉,为植物固沙提供了新的技术手段。本项目通过研究微润灌土壤水分运动规律及其对固沙植物(梭梭)生长的影响,探明微润灌灌溉机理,揭示不同灌水技术要素组合下土壤湿润体水分分布与入渗特性规律,构建土壤含水率分布的经验模型和简化入渗模型,依据固沙植物生长的环境条件和可调节的灌水措施,协调土壤水分与固沙植物生长的关系,定量确定符合客观实际的微润灌技术要素组合优化方法,实现固沙植物水分高效利用理论的创新,提出固沙植物微润灌最佳灌水指标和供水模式。【英文摘要】Wind-sanddisasteristhemostseriousecologicalenvironmentproblemsinourcountryespeciallyinthenorthwestarea,vegetativesand-controlisthemosteffectivemeasureswhichpreventwind-sanddisastersandconstructionofecologicalbarrier.Soilmoistureisthebiggestlimitingfactorforthesurvivalandgrowthofvegetation.Reasonableirrigationistopreventthedegradationofvegetationandeffectivemeasurestoensurethesandfixingeffectlasting.Moistube-irrigationusesemipermeablemembranetechnology,andprovideanewtechnologyforsandfixingplants.Throughthisprojectresearchonmoistube-irrigationsoilwatermovementofsandfixingplants(Haloxylonammodendron)growthtofindslightlydampirrigationmechanism,revealthewaterdistributionofsoilwettingandinfiltrationcharacteristicswhichunderdifferentirrigationtechniqueelements,constructtheempiricalmodelofsoilmoisturedistributionandthesimplifyinfiltrationmodel,onthebasisofsandfixingplantsenvironmentalconditionsforgrowthandirrigationmeasurescanbeadjusted,tocoordinatetherelationshipbetweensoilwaterandsandfixingplantsgrowth,quantitativedeterminationofaccordingwiththeobjectiverealityofmoistube-irrigationtechnologyelementscombinationofoptimizationmethod,torealizethefixingplantwateruseefficiencyoftheoryinnovation,putforwardthesandfixingplantmoistube-irrigationoptimumirrigationindexandwatersupplymode.
Subtype青年科学基金项目
Project Source国家自然科学基金
2015-01
End Date2017-12
MOST Discipline Catalogue11 - 工程与技术 ; 1106 - 水利科学与海洋工程
Host Institution兰州理工大学
Project Funding240000.0
CountryCN
Language中文
Document Type项目
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64711
Collection能源与动力工程学院
Recommended Citation
GB/T 7714
范严伟.基于微润灌的固沙植物生长动态及灌溉模式研究.2015.
Files in This Item:
There are no files associated with this item.
Related Services
Usage statistics
Google Scholar
Similar articles in Google Scholar
[范严伟]'s Articles
Baidu academic
Similar articles in Baidu academic
[范严伟]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[范严伟]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.