南方丘陵区耕地磷素地表径流流失特征研究

S273.29; 采用田间径流试验观察方法,详细剖析了南方丘陵区7个试验点连续4年(2008-2011年)的实验数据,研究南方丘陵区耕地磷素地表径流流失特征.结果表明,南方丘陵区耕地磷素流失量与地表径流产生量成显著正相关,颗粒态磷素是磷素流失的主要形态,占到总流失量的78％以上.磷素施用量和农艺措施是影响磷素地表径流量的关键因素,在坡耕地上农艺措施是主要的影响因素,在平地上磷素施肥量是主要的影响因素....

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Published in西南农业学报 Vol. 29; no. 11; pp. 2676 - 2681
Main Author 胡万里 刘宏斌 鲁耀 付斌 段宗颜 陈兴位
Format Journal Article
LanguageChinese
Published 云南省农业科学院农业环境资源研究所,云南昆明,650205%中国农业科学院农业环境与农业区划研究所,北京,100081 2016
Subjects
农艺措施
径流量
磷流失
耕地
Agronomic measures
耕地
磷流失
径流量
Amount of runoff water
Farmland
Loss amount of phosphorus
农艺措施
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ISSN1001-4829
DOI10.16213/j.cnki.scjas.2016.11.030

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Summary:S273.29; 采用田间径流试验观察方法,详细剖析了南方丘陵区7个试验点连续4年(2008-2011年)的实验数据,研究南方丘陵区耕地磷素地表径流流失特征.结果表明,南方丘陵区耕地磷素流失量与地表径流产生量成显著正相关,颗粒态磷素是磷素流失的主要形态,占到总流失量的78％以上.磷素施用量和农艺措施是影响磷素地表径流量的关键因素,在坡耕地上农艺措施是主要的影响因素,在平地上磷素施肥量是主要的影响因素.
Bibliography:HU Wan-li1 , LIU Hong-bin2. , LU Yao1 , FU Bin1 , DUAN Zong-yan1 , CHEN Xing-wei1（ 1. Institute of Agricultural Resources ＆ Environment, Yunnan Academy of Agricultural Sciences, Yunnan Kunming 650205, China ;2. Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China）
51-1213/S
Farmland; Loss amount of phosphorus; Amount of runoff water; Agronomic measures
The loss amounts of phosphorus in farmland in hilly region of South China were studied using the field runoff experiment method.Based on the analysis of the detail data from 7 test site consecutive four years,the research showed that there was a positive correlation between loss amount of phosphorus and amount of runoff water（r^2= 0.636）.The particulate phosphorus was the main form in loss amount of phosphorus by runoff water,which accounted for more than 78 %.The phosphorus input and agronomic measures were important factors to loss amount of phosphorus,agronomic measures were the main factors
ISSN:1001-4829
DOI:10.16213/j.cnki.scjas.2016.11.030