农业环境科学学报Issue(4)：810-818,9.DOI:10.11654/jaes.2014.04.028
间作白三叶对苹果/白三叶复合系统土壤总有机碳及轻组有机碳的影响
Effects of Interplanting White Clover on Soil Total Organic Carbon and Light Organic Carbon Fraction in Apple Orchard
摘要
Abstract
Interplanting cover crops in orchards is one of soil managements for the sustainability of orchards. Herein, we examined dynamics of soil total organic carbon(TOC)and light organic carbon fraction(LOCF)in an apple-white clover system in Weibei Loess Plateau from 2005 to 2011. Soil samples were collected at depths of 0~5 cm, 5~10 cm, 10~20 cm and 20~40 cm in clear tillage and white clover-interplanting orchards. Total organic carbon and soil organic carbon density(SOCD)in apple-white clover intercropping system were signifi-cantly increased in comparison with the clear tillage orchard. The increments, however, decreased rapidly with soil depth. Compared to the clear tillage apple orchard, the LOCF and the ratios of LOCF to TOC increased by 7.02, 4.57 times, and 2.49 times and 7.01, 4.57 times and 2.51 times at 0~5 cm, 5~10 cm, and 10~20 cm soil layer, respectively. This suggests that interplanting white clover in apple orchard could improve the quality of soil organic carbon.关键词
果园生草/土壤有机碳/土壤轻组有机碳Key words
interplanting grasses in orchard/soil organic carbon/light organic carbon fraction分类
农业科技引用本文复制引用
张玉岱,李同川,张道勇,贾曼莉,郭宏,李会科,曹卫东..间作白三叶对苹果/白三叶复合系统土壤总有机碳及轻组有机碳的影响[J].农业环境科学学报,2014,(4):810-818,9.基金项目
公益性行业（农业）科研专项（201103005-9）；国家科技支撑计划（2014BAD16B06，2014BAD16B02）；国家现代农业产业技术体系项目（CARS-28）；陕西省科技攻关项目（2010K01-04-2）；陕西省科技统筹创新工程计划（2011KTZB02-02-05）；西北农林科技大学推广专项资助（Z222021211）；陕西省农业专项 （）
