CAJ | 학술논문

通过对植被护坡系统水分动态平衡的分析，提出岩石边坡植被护坡系统根层土壤贮水量的基本要求。采用现场降雨试验等方法研究岩石边坡植被护坡系统水分运移的规律，对影响植被护坡系统水分平衡的根层土壤初始贮水量、植被截留量、坡表径流量、边坡坡角、坡表蒸散量及根层土壤萎蔫贮水量等因子进行分析。试验结果表明：若客土配比合理，其渗透性能良好，客土能在较短的时间内获得较大的贮水量，客土中添加适量保水剂、泥炭可明显减缓客土层水分的蒸散，此外，客土中添加保水剂还可降低客土的萎蔫持水量，使客土层中更多的水分成为可供植物利用的有效水；覆盖良好的坡面植被对降雨的截留量不可忽视；为提高降雨的入渗量，须选择适宜的边坡坡角。研究成果可为岩石边坡植被护坡系统的水分平衡及控制提供依据。
통과대식피호파계통수분동태평형적분석，제출암석변파식피호파계통근층토양저수량적기본요구。채용현장강우시험등방법연구암석변파식피호파계통수분운이적규률，대영향식피호파계통수분평형적근층토양초시저수량、식피절류량、파표경류량、변파파각、파표증산량급근층토양위언저수량등인자진행분석。시험결과표명：약객토배비합리，기삼투성능량호，객토능재교단적시간내획득교대적저수량，객토중첨가괄량보수제、니탄가명현감완객토층수분적증산，차외，객토중첨가보수제환가강저객토적위언지수량，사객토층중경다적수분성위가공식물이용적유효수；복개량호적파면식피대강우적절류량불가홀시；위제고강우적입삼량，수선택괄의적변파파각。연구성과가위암석변파식피호파계통적수분평형급공제제공의거。
Based on moisture balance of bio-slope-engineering system,the fundamental requirements of water storage capacity of root layer soil in rock slope protection are put forward. By field rainfall tests,the regulations of moisture migration in bio-slope-engineering system for rock slope are studied. Then,the factors governing moisture balance of bio-slope-engineering system are analyzed,such as initial water storage capacity of root layer soil,vegetation interception,slope surface runoff,slope angle,slope surface evapotranspiration,and wilting capacity of root layer soil. It is shown that carrying soil can obtain larger water storage capacity in a relatively short time if its ratio is reasonable and its permeability is good,and adding a good amount of water retention agents and peats into carrying soil can significantly reduce water evapotranspiration;furthermore,water retention agent can reduce wilting capacity of carrying soil,thus more moisture in carrying soil becomes available for plants. It is also shown that vegetation interception cannot be ignored in a good vegetation-covered slope,and slope angle should be appropriately determined to improve the rainfall infiltration. The results may be helpful for moisture balance and bio-slope-engineering system control for rock slope.