黄河首曲沙化草地恢复重建模式研究  

Study on restoration pattern of degraded grassland in First Tune of Yellow River

作　　者：陈文业 郑华平[2] 戚登臣 李广宇 柴春山 刘正恒 宗文杰 杨鑫光 陈炜青 

机构地区：[1]甘肃省林业科学研究院,甘肃兰州730020 [2]甘肃省科技厅,甘肃兰州730030 [3]甘肃省玛曲县草原总站,甘肃玛曲747300

出　　处：《草业科学》2008年第6期14-18,共5页Pratacultural Science

基　　金：甘肃省科技重大攻关项目(2GS063-A31-010)

摘　　要：通过对青草沙障、草方格＋山生柳Salixoritrepha密植扦插＋种草、羊粪生物结皮＋种草、卵石方格＋种草、遮荫网＋种草、山生柳密植扦插6种草地恢复重建模式研究．结果表明：效果由大到小依次为草方格＋山生柳密植扦插＋种草模式、羊粪生物结皮＋种草促进恢复重建模式、卵石方格＋种草模式、遮荫网＋种草模式、青草沙障、山生柳密植扦插模式。草方格＋山生柳密植扦插＋种草模式．山生柳插穗成活率为92．3%，保存率为83．1％，平均生长量为12．4cm，平均草高12cm，覆盖度为78％，此模式值得推广。羊粪生物结皮＋种草模式，各种草平均生长量为5．3cm．覆盖度为43％～48％．是玛曲沙化草地最有前途的恢复重建模式之一，山生柳密植扦插效果最差．此模式难以推广。Six patterns of degraded grassland restoration were studied, including grass barrier, straw pane ＋Salix oritrepha ＋forage planting, sheep dung biological crust＋ forage planting, pebble pane ＋ forage planting, overshadowing net ＋ forage planting, and S. oritrepha cuttings. The result showed that the second pattern was the most effective; the living percentage and survival rate of S. oritr valuabl pattern epha cutting was 92.3 %and 83.1%, with 12.4 cm average growth and 78%coverage, and was e for extension. The third pattern gave 5.3 average growth and 43%-48% coverage. The last was the most ineffective.

关 键 词：沙化草地 模式 玛曲 山生柳 生物结皮 

分 类 号：S812[农业科学—草业科学]