首页 | 本学科首页   官方微博 | 高级检索  
     

种植模式和施肥对黄土旱塬农田土壤团聚体及其碳分布的影响
引用本文:李春越,常顺,钟凡心,薛英龙,苗雨,王益,党廷辉. 种植模式和施肥对黄土旱塬农田土壤团聚体及其碳分布的影响[J]. 应用生态学报, 2021, 32(1): 191-200. DOI: 10.13287/j.1001-9332.202101.027
作者姓名:李春越  常顺  钟凡心  薛英龙  苗雨  王益  党廷辉
作者单位:1.陕西师范大学地理科学与旅游学院, 西安 710119;2.中国科学院地球环境研究所, 西安 710061;3.中国科学院水利部水土保持研究所, 陕西杨凌 712100
基金项目:陕西省自然科学基金项目(2019JM-518)、国家重点研发计划项目(2016YFC0501602)、国家自然科学基金项目(41501255,41671269)和中央高校基本科研业务费专项(GK201603073)
摘    要:本研究以长武黄土高原农业生态试验站33年长期定位试验处理为研究对象,选取撂荒(R)、小麦连作(CK/W)、小麦玉米轮作(L),小麦连作选取单施氮肥(N)、单施磷肥(P)、施氮磷肥(NP)、单施有机肥(M)、氮肥配施有机肥(NM)、磷肥配施有机肥(PM)、氮磷肥配施有机肥(NPM)共10种不同种植模式和施肥田间处理,运用...

关 键 词:种植模式  施肥  黄土高原  土壤团聚体  碳分布
收稿时间:2020-07-16

Effects of fertilization and planting patterns on soil aggregate and carbon distribution in farmland of the Loess Plateau,Northwest China
LI Chun-yue,CHANG Shun,ZHONG Fan-xin,XUE Ying-long,MIAO Yu,WANG Yi,DANG Ting-hui. Effects of fertilization and planting patterns on soil aggregate and carbon distribution in farmland of the Loess Plateau,Northwest China[J]. The journal of applied ecology, 2021, 32(1): 191-200. DOI: 10.13287/j.1001-9332.202101.027
Authors:LI Chun-yue  CHANG Shun  ZHONG Fan-xin  XUE Ying-long  MIAO Yu  WANG Yi  DANG Ting-hui
Affiliation:1.School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China;2.Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China;3.Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi, China
Abstract:Based on a long-term experiment in the Changwu Agro-ecological Experimental Station in Xianyang, Shaanxi, China, we examined the effects of fertilization and planting patterns on soil aggregate quantity, aggregate stability and total carbon and organic carbon distribution in different aggregate fractions through dry and wet sieving methods, as well as the TOC combustion method. There were ten treatments, including uncultivated (R), wheat continuous cropping (CK/W), wheat-corn rotation (L), and nitrogen fertilizer (N), phosphorus fertilizer (P), nitrogen and phosphorus fertilizer (NP), organic fertilizer (M), nitrogen and organic fertilizer (NM), phosphorus and organic fertilizer (PM), nitrogen and phosphorus and organic fertilizer (NPM) for CK/W. The results showed that fertilizer application and planting patterns affected soil aggregate distribution and stability, the contents and contribution rates of total C and organic C. Force-stable aggregate was mainly constituted by >0.25 mm aggregate (>67%), which was reduced by fertilization. Continuous cropping decreased micro-aggregate while rotation facilitated it and the effect was larger than fertilization. Water-stable aggregate was mainly comprised of micro-aggregate (<0.25 mm), the contribution of which was larger than 61%. Both fertilizer application and planting pattern reduced water-stable micro-aggregate. Fertilizer application and planting pattern decreased the percentage of aggregate destruction rate (PAD) and increased macro-aggregate (>0.25 mm, R0.25) content. Organic fertilizer significantly improved total C and organic C concentrations in all the fractions of force-stable aggregates. Continuous cropping and rotation cropping increased total C concentration in all the aggregate fractions while rotation cropping significantly decreased organic C concentration. Single N and P fertilization decreased soil total C concentration, while mixed application of N and P fertilizers, and organic fertilizer significantly increased soil total C concentration. The effect of planting patterns on soil total C was lower than that of fertilization. Both continuous cropping and rotation cropping increased soil total C. Mixed application of N and P fertilizers, and organic fertilizer signifi-cantly increased soil organic C concentration while single N and P fertilization decreased it. The effect of planting patterns on soil organic C was lower than that of fertilization, while rotation cropping did not facilitate soil organic C. Micro-aggregate was the most notable size fraction to total carbon and organic C, with the contribution being 21.2%-33.6%. Fertilization and planting pattern increased the contribution rate of micro-aggregate in soil total C. NP and NPM significantly increased the contribution rate of micro-aggregate in soil total C and soil organic C. The effect of rotation cropping was most obvious in driving the contribution rate of micro-aggregate in soil total C and soil organic C.
Keywords:planting pattern  fertilization  Loess Plateau  soil aggregate  carbon distribution  
本文献已被 CNKI 等数据库收录!
点击此处可从《应用生态学报》浏览原始摘要信息
点击此处可从《应用生态学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号