北方环境
北方環境
북방배경
INNER MONGOLIA ENVIRONMENTAL SCIENCES
2011年
8期
70-73
,共4页
皇甫川流域%不同水土治理方式%土壤中的全钾%土壤中的速效钾
皇甫川流域%不同水土治理方式%土壤中的全鉀%土壤中的速效鉀
황보천류역%불동수토치리방식%토양중적전갑%토양중적속효갑
Huangfuchuan Watershed%vegetation treating measurment%soil available kalium%total kalium
本文采用NaOH熔融法,原子吸收分光光度法和NH4OAc浸提,原子吸收分光光度法,分别测定了皇甫川流域五分地沟试验区不同植被治理措施下土壤的全K和速效K含量,对测定结果的分析表明:①不同治理措施下,土壤中全K含量的大小次序是:人工草地〉农田〉人工灌木〉退化草地〉次生草地〉人工林地〉百里香草原,土壤中速效K含量的大小次序是:人工林地〉百里香草原〉人工灌木〉退化草地〉农田〉次生草地〉人工草地。②不同治理方式对土壤钾含量提高的差异明显,灌草类植被对土壤钾的提高效果较好,杨树林对土壤钾的恢复效果稍差。
本文採用NaOH鎔融法,原子吸收分光光度法和NH4OAc浸提,原子吸收分光光度法,分彆測定瞭皇甫川流域五分地溝試驗區不同植被治理措施下土壤的全K和速效K含量,對測定結果的分析錶明:①不同治理措施下,土壤中全K含量的大小次序是:人工草地〉農田〉人工灌木〉退化草地〉次生草地〉人工林地〉百裏香草原,土壤中速效K含量的大小次序是:人工林地〉百裏香草原〉人工灌木〉退化草地〉農田〉次生草地〉人工草地。②不同治理方式對土壤鉀含量提高的差異明顯,灌草類植被對土壤鉀的提高效果較好,楊樹林對土壤鉀的恢複效果稍差。
본문채용NaOH용융법,원자흡수분광광도법화NH4OAc침제,원자흡수분광광도법,분별측정료황보천류역오분지구시험구불동식피치리조시하토양적전K화속효K함량,대측정결과적분석표명:①불동치리조시하,토양중전K함량적대소차서시:인공초지〉농전〉인공관목〉퇴화초지〉차생초지〉인공임지〉백리향초원,토양중속효K함량적대소차서시:인공임지〉백리향초원〉인공관목〉퇴화초지〉농전〉차생초지〉인공초지。②불동치리방식대토양갑함량제고적차이명현,관초류식피대토양갑적제고효과교호,양수림대토양갑적회복효과초차。
In this paper, melt method AAS and extraction method AAS were used to measure soil total kalium and soil available kalium and applying different Vegetation treading measurements in Huangfuchuan watershed wufendigou Cathment. Experimental analysis shows that the oder of total kalium in soil is artificial grassland 〉 farmland 〉 artificial shrubs 〉 degraded grassland 〉 Secondary grassland 〉 artificial forest 〉 Thymas serpyllum community and the order of soil available kalium is artificial forest 〉 Thymus serpyllum community 〉 artificial shrubs 〉 degenerated grassland 〉 farmland 〉 secondary grassland 〉 artificial grassland. Testing result also reveal that the increase of soil kalium content is obvious in different treatment methods: shrubs and grass vegetation treating method is better in improving the soil kalium content and populus forest treating method is worse for restoration of soil kalium content.