文献类型：期刊文献

中文题名：油茶间作不同绿肥对土壤养分流失的影响

英文题名：Effects of Intercropping with Different Green Manures on Soil Nutrient Loss in Camellia Oleifera Field

作者：丁怡飞[1,2] 曹永庆[1] 姚小华[1] 傅松玲[2] 张平安[3] 楼新良[4]

第一作者：丁怡飞

机构：[1]中国林业科学研究院亚热带林业研究所;[2]安徽农业大学林学与园林学院;[3]青田县林业局;[4]磐安县林业局

年份：2018

卷号：32

期号：2

起止页码：179-183

中文期刊名：水土保持学报

外文期刊名：Journal of Soil and Water Conservation

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2017_2018】；

基金：浙江省省院合作林业科技项目"浙江省油茶林地高效复合经营技术研究与示范"(2014SY03)

语种：中文

中文关键词：油茶;间作;地表径流;养分流失

外文关键词：Camellia oleifera;intercropping;surface runoff;nutrient loss

分类号：S153.6;S794.4

摘要：为有效防治油茶林水土流失和面源污染,在自然降雨条件下,采用径流小区定位观测法研究间作黑麦草、鼠茅草对油茶林土壤养分流失的影响。结果表明:(1)油茶间作黑麦草、鼠茅草可以提高土壤含水量与地表覆盖度,降低土壤容重,并显著提高表层土壤有机质及养分含量,增加土壤肥力。(2)4—7月油茶间作绿肥作物黑麦草、鼠茅草径流量分别减少18.5%~58.9%和17.9%~70.3%。(3)油茶间作鼠茅草系统减少径流养分流失的效果最佳,与对照组相比,地表径流中总氮、可溶性总氮、总磷、可溶性总磷、总钾、可溶性总钾的总流失量分别减少62.48%,56.17%,59.72%,57.97%,62.97%和61.76%;油茶间作黑麦草系统减少地表养分流失的效果较弱,与对照组相比,地表径流中总氮、可溶性总氮、总磷、可溶性总磷、总钾、可溶性总钾的总流失量分别减少30.95%,24.42%,25.03%,28.22%,32.97%和30.42%。各形态氮、磷、钾养分浓度较对照也有一定程度的降低。研究结果显示,油茶林间作绿肥,尤其是间作鼠茅草的水土保持效果显著。
In order to effectively prevent and control the soil and water loss and pollution in Camellia oleifera field,by using the location observation of runoff plot under natural rainfall conditions,the effects of intercropping with Lolium perenne L.and Vulpia myuros C.Gmelin on soil nutrient loss in C.oleiferafield were studied.The results showed that：（1）The intercropping of L.perenne and V.myuros with C.oleiferacould improve soil water content and surface coverage,reduce soil bulk density,and increase soil fertility significantly through improving soil organic matter and nutrient contents in topsoil.（2）During April-July,the intercropping of L.perenne and V.myuros with C.oleifera could reduce surface runoff by 18.5% -58.9% and 17.9%-70.3%,respectively.（3）The reducing effect on surface runoff nutrient loss was best under intercropping with V.myuros,the total loss of total nitrogen,total soluble nitrogen,total phosphorus,total soluble phosphorus,total potassium and total soluble potassium decreased by 62.48%,56.17%,59.72%,57.97%,62.97% and 61.76%,respectively,compared with the control.The reducing effect on nutrient loss was least under the intercropping with L.perenne,but the reduced rates were even 30.95%,24.42%,25.03%,28.22%,32.97% and 30.42%,respectively for the indexes mentioned above.The nutrient concentrations of nitrogen,phosphorus and potassium in different forms were lower than those of the control.These findings showed that the effect of intercropping with green manures on soil and water conservation was remarkable in C.oleiferafield,especially with V.myuros.