防护林科技
防護林科技
방호림과기
PROTECTION FOREST SCIENCE AND TECHNOLOGY
2014年
10期
7-9
,共3页
排土场%植被恢复%生态环境
排土場%植被恢複%生態環境
배토장%식피회복%생태배경
dump%vegetation restoration%eco-environment
排土场造林后,由于林草植被覆被率增加,使有害气体的浓度显著降低。通过对排矸年限50年的排土场内有林地和无林地的 SO2、NOX、CO 浓度的定点监测,结果表明：有林地比无林地 SO2、NOX、CO 浓度分别降低31.8%、34.5%、20.1%；风化层矸石碎屑养分含量全氮、全钾含量分别增加33.3%和16.6%；地表温度、土壤温度(0~10 cm)、空气温度(高50 cm)分别降低9.9℃、10.7℃、1.5℃,相对湿度却增加4%~15%。
排土場造林後,由于林草植被覆被率增加,使有害氣體的濃度顯著降低。通過對排矸年限50年的排土場內有林地和無林地的 SO2、NOX、CO 濃度的定點鑑測,結果錶明：有林地比無林地 SO2、NOX、CO 濃度分彆降低31.8%、34.5%、20.1%；風化層矸石碎屑養分含量全氮、全鉀含量分彆增加33.3%和16.6%；地錶溫度、土壤溫度(0~10 cm)、空氣溫度(高50 cm)分彆降低9.9℃、10.7℃、1.5℃,相對濕度卻增加4%~15%。
배토장조림후,유우림초식피복피솔증가,사유해기체적농도현저강저。통과대배안년한50년적배토장내유임지화무임지적 SO2、NOX、CO 농도적정점감측,결과표명：유임지비무임지 SO2、NOX、CO 농도분별강저31.8%、34.5%、20.1%；풍화층안석쇄설양분함량전담、전갑함량분별증가33.3%화16.6%；지표온도、토양온도(0~10 cm)、공기온도(고50 cm)분별강저9.9℃、10.7℃、1.5℃,상대습도각증가4%~15%。
After afforestation in dump,the concentration of harmful gases significantly reduced due to the increased vegetation cover rates.SO2 ,NOX ,CO concentration between the forest land & non-stocked land were monitored by fixed spots in the dump discharging refuse with 50 years.SO2 ,NOX,CO concentration of forest decrease by 31.8%,34.5%,20.1% respectively than that of non-stocked land.The content of total nitrogen,total potassium of nutrient content in the waste rock debris regolith increase by 33.3% &16.6% respectively;soil surface tempera-ture,soil temperature (0-10 cm),air temperature (height being 50 cm)reduce by 9.9 ℃,10.7 ℃,1.5 ℃,re-spectively;relative humidity increase from 4% to 1 5% .
