摘要
本文通过对阿拉善盟贺兰山自然保护区围封前后水土流失特征、成因及危害程度的调查分析,结果表明,围封前植被破坏严重,水土流失明显,围封转移战略是促进自然保护区生态恢复的有效措施。围封后通过各种工程措施的综合运用,保护区植被种类和盖度明显增加,生长量和生产力提高,有效地遏制了水土流失,改善了生态环境。
The characteristics, formation, destruction of soil and water losses in Helan mountain nature protection area of Lashan League were analyzed. The results showed that before enclosing, the vegetation was destroyed seriously, soil and water losses obviously, the countermeasure of enclosing is a good way to promote ecological recovery ;after enclosing , the kinds and coverage of vegetation increased and growth ＆ productivity enhanced through projectand measures. It controlled water and soil losses ,improved ecology and environment.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2005年第3期17-20,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
关键词
贺兰山
生态环境
水土流失
防护措施
HeLan Mountains
Ecology and Environment
Water and soil losses
protection measure
