编号 zgly0000363274

文献类型 期刊论文

文献题名 Afforestation using micro-catchment water harvesting system with microphytic crust treatment on semi-arid Loess Plateau: A preliminary result

学科分类 220.20;森林培育学

作者 YANGXiao-hui  WANGKe-qin  WANGBin-rui  YUChun-tang 

作者单位 ResearchInstituteofForestry  ChineseAcademyofForestry  SilviculturalLabofStateFo＇restryAdministration  Beijing100091  P.R.China  SoutheastForestryCollege  Kunming650224  P.R.China  CollegeofSoilandWaterConservation  BeijingForestryUniversity  Beijing100083  P.R.China  ResearchInstituteofForestry  ChineseAcademyofForestry  SilviculturalLabofStateFo＇restryAdministration  Beijing100091  P.R.China 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2005,16(1)

页码 9-14,i001

年份 2005 

分类号 S728.2 

关键词 半干旱黄土高原  生物结皮  集水造林  土壤水分  微集水区 

文摘内容 Water harvesting is one of main measures to solve water shortage resulting from less precipitation and erratically seasonal distribution in add and semi-add areas. Different types of anti-infiltration treatments including mechanical and chemical to micro-catchment and their runoff efficiencies had been reported. This paper, through 5 years experiment from 1992 to 1996, is aimed at studying the impacts of microcatchment water-harvesting system (MCWHS) with microphytic crust treatment on afforestation on semi-add Loess Plateau.The results showed that after 3 years of crust inoculation, crust had covered majority of MCWHS and the function of water harvesting had also been demonstrated partially, there were significant difference in soil moisture of shallow soil layer in three typical spring stages between crust cover and control treatments (0.05 level), and about 0.9%-6.04% increase of monthly mean soil moisture within lm soil layer in spring of late 3 years. The impact of severe spring drought can be alleviated effectively. In the meanwhile, as crust developed on the treated surface, there are significant differences (0.05 level) for tree height (H), diameter at breast height (DBH) and diameter at ground level (DGL) at the end of the study period (1996) with the increases by 22.38%, 17.34%, and 20.49% respectively compared with the control treatment. Microphytic crust, as one of biological infiltration-proof materials, may become the optimized option for revegetation in Chinese Great West Development Strategy due to its self-propagation, non-pollution to water qualities, long use duration and relatively cost effective. Further work should be focused on the selection of endemic crust species and their hatch-culture in add environment。