摘要
抗蚀性是与抗冲性既有联系,又有区别的一个衡量土壤抗侵蚀能力的重要指标。在黄土高原的两大侵蚀类型区——高塬沟壑区、丘陵沟壑区,分布着数百万公顷沙棘人工林,其抗侵蚀能力愈来愈受关注。要正确评价沙棘人工林的抗蚀功能,一个科学、有效、便利的评价体系是不可缺少的。在反映土壤抗蚀性的纷杂繁多的指标中,经过主成分分析,筛选出了符合不同精度要求的“最佳指标”、“最佳2指标”、“最佳3指标”等评价体系。
Antierodibility is one important index to estimate soil antierosion capacity which has relation and difference with antiscouring ability.There are thousands of hundreds hectare Hippophae rhamnoides forest in loess plateau region, and its antierosion capacity has been paid more and more attention. One scientific,effective and advantage evaluation system is essential to evaluate antierosion capacity of Hippophae rhamnoides forest. Using principal component analysis,different evaluation system—“Optimum 1 Index”,“Optimum 2 Indexes”,and “Optimum 3 Indexes ”are chosen among many indexes .
出处
《水土保持通报》
CSCD
北大核心
1998年第2期25-30,93,共7页
Bulletin of Soil and Water Conservation
关键词
土壤抗蚀性
人工林
沙棘
黄土高原
soil antierodibility
principal component analysis
artificial forest
Hippophae rhamnoides
loess plateau