中文摘要：

采用叶表皮临时装片法研究了黄土高原丘陵沟壑区不同土壤侵蚀环境沟间地、沟谷地和沟间人工刺槐林地6种抗侵蚀植物叶表皮组成细胞的形态特征.结果表明：沟间地抗侵蚀植物叶的上表皮气孔开度、气孔密度、气孔指数、气孔器长宽比可塑性、气孔器面积可塑性、表皮毛密度和表皮细胞密度分别比沟谷地提高93.8%、66.8%、17.9%、36.4%、42.3%、199.4%和46.5%,下表皮分别提高90.4%、76.6%、9.8%、47.1%、43.9%、98.2%和50.1%;沟间人工刺槐林地叶上表皮各形态指标分别比沟谷地提高66.7%、20.5%、11.9%、37.9%、19.8%、113.1%和10.8%,叶下表皮分别提高106.7%、45.8%、11.9%、41.3%、21.2%、52.2%和28.1%.沟间地植物叶上、下叶表皮毛长度分别比沟谷地缩短58.8%和29.7%,表皮细胞面积分别比沟谷地减少40.3%和37.0%.沟间人工刺槐林地叶上、下表皮毛长度分别比沟谷地缩短25.0%和23.6%,表皮细胞面积分别比沟谷地减少22.2%和19.2%.抗侵蚀植物通过增加叶表皮气孔开度、气孔密度、气孔指数、气孔器长宽比可塑性、气孔器面积可塑性、表皮毛密度、表皮细胞密度和减少表皮毛长度、表皮细胞面积来适应较强的土壤侵蚀环境.

英文摘要：

By the temporary slide method of leaf epidermis,an observation was made on the morphological characteristics of the leaf epidermis of six erosion-resistant plant species in different soil erosion environments （gully,inter-gully,and inter-gully artificial Robinia pseudoacacia forest land） in hilly-gully area of Loess Plateau.Compared with those in the gully,the stomata aperture,stomata density,stomata index,stomata apparatus length/width plasticity,stomata apparatus area plasticity,epidermal hair density,and epidermal cell density of the leaf upper and lower epidermis of the plants in the inter-gully were 93.8% and 90.4%,66.8% and 76.6%,17.9% and 9.8%,36.4% and 47.1%,42.3% and 43.9%,199.4% and 98.2%,and 46.5% and 50.1% higher,respectively;while in the inter-gully artificial R.pseudoacacia forest land,the same morphological indices of the leaf upper and lower epidermis of the plants were 66.7% and 106.7%,20.5% and 45.8%,11.9% and 11.9%,37.9% and 41.3%,19.8% and 21.2%,113.1% and 52.2%,and 10.8% and 28.1% higher than those in the gully,respectively.The epidermal hair length and epidermal cell area of the leaf upper and lower epidermis of the plants in the inter-gully were 58.8% and 29.7%,and 40.3% and 37.0% lower than those in the gully,and the same morphological indices of the leaf upper and lower epidermis of the plants in the intergully artificial R.pseudoacacia forest land were respectively 25.0% and 23.6%,and 22.2% and 19.2% lower than those in the gully,respectively.The results suggested that the erosion-resistant plants in the study area were able to adapt to various soil erosion environments by increasing their leaf stomata aperture,stomata density,stomata index,stomata apparatus length/width plasticity,stomata apparatus area plasticity,epidermal hair density,and epidermal cell density,and by reducing their epidermal hair length and epidermal cell area.