围封保护措施下宁夏贺兰山小麦近缘种多样性变化

Wild Wheat Relatives Diversity Changes under Enclosed Protection in Ningxia Helanshan Mountain

本文研究了围封保护措施下宁夏贺兰山小麦近缘种多样性变化。结果表明:对宁夏贺兰山小麦近缘种保护点内的小麦近缘种7年的监测发现,保护点内植被恢复良好,群落中伴生种相对较丰富;保护区目标物种沙生冰草、冰草、赖草、阿拉善鹅观草虽然得到了一定程度的保护,但由于春旱、采矿及旅游等因素而受到了很大的威胁,建议今后应加大宁夏贺兰山小麦近缘种的宣传和保护力度。

This paper studied wild wheat relatives diversity changes under enclosed protection in Ningxia Helanshan Mountain. The result showed that after 7-year monitoring, the wheat relatives in protected spots recovered well, with abundant accom- panying species in this community; although the target species of Agropyron desertorum （Fisch.） Schult., Agropyron cristatum （Linn.） Gaertn., Leymus seealinus （Georgi） Tzvel. and Roegneria alashaniea Keng. in this area were protected to some extent, these species were greatly threatened because of spring drought, coal mining and tourism. In the future, the propaganda and protection should be enhanced.