高陡岩质边坡覆绿植物地境特征研究——以宜阳锦屏山采石场为例

Study on Characteristics of Green Covered Plant Below-Ground Habitat of the High and Steep Rocky Slope——Taking Yiyang Jinping Mountain Quarry as an Example

以锦屏山采石场边坡裂隙为研究对象,对高陡岩质边坡覆绿植物生长的地境特征进行调查研究,包括根系生长空间、温度、水分、养分共4项指标.通过野外实测和室内实验的方式分析这4项指标来判断高陡岩质边坡地境人工再造是否可行.结果显示:根系生长空间的裂隙率与一般石灰岩地区经验值相比偏高,裂隙之间相互贯通;裂隙内温度、水分条件未超出植物生长耐受范围;裂隙中土壤肥力指标较坡面生长有野生植物处土壤高.最后结合野外植物生长试验结果,给出研究区高陡岩质边坡地境再造是否可行的结论.

Based on analysis of reforestation on the high and steep rocky slope , crack of Jinping mountain was chosen as research object for characteristics study of green covered plant below -ground habitat , including four indexes such as root growth space , temperature , moisture , nutrients .The feasibility of man-made reconstruction on the high and steep rocky slope below-ground habitat was judged from field measurements and indoor experiments da-ta.The results show that fissure rate of root growth space is higher than that in other limestone areas ;cracks con-nect with each other , and temperature and moisture do not exceed the tolerance range of plant growth;soil fertility in cracks is better than that on the surface of slope where plants grow .Finally, combined with field plant growth test , the conclusion that feasibility of man-made reconstruction on the high and steep rocky slope below-ground hab-itat is given .