期刊文献+

绿洲边缘白刺林退化植被恢复与重建技术研究 被引量:24

Studies on Restoration and Reconstruction of DegeneratedVegetation of Nitraria Shrub on Oasis Boundary
下载PDF
导出
摘要 本文针对绿洲边缘天然白刺灌丛植被退化发生机制 ,采取平茬和人工降雨两种措施 ,从白刺灌丛的生长量、生物量、物种多样性以及沙丘内部水分变化量等方面入手 ,对白刺灌丛的复壮进行了初步的研究。平茬可在一定程度上促进白刺个体的生长并较小范围内改善浅层土壤水分条件。对结皮不同程度处理并结合人工降雨措施 ,均能促进白刺灌丛的生长 ,对浅层土壤水分条件具有较大幅度的影响 ,但对深层土壤水分条件不产生影响。 0 - 1 40cm范围内土壤水分条件的优劣是白刺灌丛生存生长的关键因素之一 ,改善该范围内沙丘内部水分条件对白刺灌丛的复壮具有重要的意义。 According to the degradation reasons of Nitraria shrub and by the two measures of manual rainfall and cutting,the growth\,biolmass\,species diversity and soil moisture content were analyzed.In some degree,cutting promoted the growth of Nitraria and slightly improved soil moisture in the shallow soil layers,Soil-crust-destroy combined with manual rainfall could promote the growth of Nitraria and improve soil moisture in the shallow soil layers,but not in the deep soil layers.Soil moisture in the range of 0-140cm was one of mainly limited factors that influenced growth of Nitraria,and improvement of soil moisture had important signification for promoting reconstruction of Nitraria shrub vegetation in oasis boundary.
出处 《干旱区资源与环境》 CSSCI CSCD 北大核心 2005年第1期167-171,共5页 Journal of Arid Land Resources and Environment
基金 国家林业局科技成果 (中式 )计划项目 :[2 0 0 0 ] 12号 甘肃省林业重点项目 :QS92 -C3 1-0 10 甘肃林业重点项目 :QS0 12 -C3 1-16
关键词 白刺灌丛 植被 人工降雨 平茬 结皮 处理方法 沙丘 Oasis boundary Nitraria shrub degenerated vegetation soil crust destroy cutting manual rainfall
  • 相关文献

参考文献7

二级参考文献24

  • 1施雅风,张祥松.气候变化对西北干旱区地表水资源的影响和未来趋势[J].中国科学(B辑),1995,25(9):968-977. 被引量:126
  • 2慈龙骏,吴波.中国荒漠化气候类型划分与潜在发生范围的确定[J].中国沙漠,1997,17(2):107-111. 被引量:94
  • 3张继贤.沙坡头地区风沙土的水热状况[J].中国沙漠,1997,17(2):154-158. 被引量:22
  • 4[1]Eldridge D J, Green R S B. Microbiotic soil crusts: a view of there roles in soil and ecological processes in the rangelands of Australia [J]. Australian Journal of Soil Research,1994,32:389-415.
  • 5[3]Johansen Jeffery R. Cryptogamic crusts of semiarid and arid lands of North America [J]. J. Phycol., 1993, 29: 140-147.
  • 6[5]West Neil E. Structure and function of microphytic soil crusts in wild land ecosystems of arid to semi-arid regions[J]. Advances in Ecological Research, 1990, 20: 179-223.
  • 7[6]Eldridge D J, Tozer M E, Slangen S. Soil hydrology is independent of microphytic crusts cover: further evidence from a wooded semiarid Australian rangelands [J].Arid Soil Research and Rehabilitation, 1997,11:113-126.
  • 8刘k心.包兰铁路沙坡头地段防沙体系的建立及效益[J].中国沙漠,1987,7(4):1-11.
  • 9邱国玉,中国科学院沙坡头沙漠试验研究站年报,1993年
  • 10张继贤,中国科学院沙坡头沙漠试验研究站年报,1993年

共引文献257

同被引文献367

引证文献24

二级引证文献186

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部