水土保持学报2018，Vol.32Issue(2)：179-183,216,6.DOI:10.13870/j.cnki.stbcxb.2018.02.026
油茶间作不同绿肥对土壤养分流失的影响
Effects of Intercropping with Different Green Manures on Soil Nutrient Loss in Camellia Oleifera Field
摘要
Abstract
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.oleifera field were studied.The results showed that:(1) The intercropping of L.perenne and V.myuros with C.oleif era could 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.oleifera field,especially with V.myuros.关键词
油茶/间作/地表径流/养分流失Key words
Camellia oleifera/intercropping/surface runoff/nutrient loss分类
农业科技引用本文复制引用
丁怡飞,曹永庆,姚小华,傅松玲,张平安,楼新良..油茶间作不同绿肥对土壤养分流失的影响[J].水土保持学报,2018,32(2):179-183,216,6.基金项目
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) （2014SY03）
