[1]危锋.长期氮磷化肥配施对不同种植体系土壤水分的影响[J].水土保持研究,2011,18(06):67-70.
　WEI Feng.Effect of Application of NP Chemical Fertilizer on Soil Water in the Different Cropping Systems on Dryland of the Loess Plateau[J].Research of Soil and Water Conservation,2011,18(06):67-70.
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长期氮磷化肥配施对不同种植体系土壤水分的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 18 期数: 2011年06期 页码: 67-70 栏目: 出版日期: 2011-12-20
Title:
Effect of Application of NP Chemical Fertilizer on Soil Water in the Different Cropping Systems on Dryland of the Loess Plateau
作者:
危锋1,2,2
1. 西南林业大学, 环境科学与工程学院, 水土保持与荒漠化防治重点学科, 昆明 650224;
2. 西北农林科技大学, 水土保持研究所, 陕西 杨凌 712100
Author(s):
WEI Feng1,2,2
1. Key Subject of Soil and Water Conservation & Desertification Control, College of Environment Science and Engineering, Southwest Forestry University, Kunming 650224, China;
2. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China
关键词:
黄土高原; 长期试验; 氮磷化肥; 不同种植体系; 土壤水分
Keywords:
the Loess Plateau; long-term experiment; NP chemical fertilizer; different cropping system; soil water
分类号:
S158.8;S152.7
摘要:
利用长期定位实验，在黄土高原旱地研究了22 a氮磷化肥配施下不同种植体系土壤水分的变化状况，为合理利用水肥资源提供参考。在小麦连作、豌豆-小麦(2 a)+糜子轮作、红豆草-小麦(2 a)轮作、豌豆-小麦(2 a)+玉米轮作、玉米-小麦(2 a)+糜子轮作、小麦(2 a)+糜子-玉米轮作6个不同种植体系中，测定土壤剖面(0-300 cm)含水量、储水量。结果表明：不同种植体系土壤含水量在土壤剖面上的分布不同，所有处理在土壤剖面140-300 cm土层含水量均低于0-140 cm土层含水量。不同种植体系在土壤剖面不同土层的储水量不同，在0-300 cm土壤储水量各处理表现为豌豆-小麦(2 a)+玉米轮作(644.8 mm)>小麦(2 a)+糜子-玉米轮作(599.6 mm)>豌豆-小麦(2 a)+糜子轮作(582.3 mm)>红豆草-小麦(2 a)轮作(574.0 mm)>玉米-小麦(2 a)+糜子轮作(550.8 mm) > 小麦连作(536.9 mm)。轮作体系0-300 cm土壤储水量均高于小麦连作。粮豆轮作土壤储水量高于小麦连作，是黄土高原地区较好的种植方式。
Abstract:
To provide a reference for reasonably using soil water resources in dryland faming on the Loess Plateau, soil water contents in soil profiles of different cropping systems under the condition of 22 years’ continuous application of NP chemical fertilizer on the Loess Plateau were studied. The treatments are wheat succession, pea-wheat(2 a)+millet rotation, sainfoin-wheat(2 a) rotation, pea-wheat(2 a)+maize rotation, maize-wheat(2 a)+millet rotation and wheat(2 a)+millet-maize rotation systems. Soil water contents and water storages in soil profiles(0-300 cm) in six kinds of different cropping systerms were analyzed. The results showed that the distributions of soil water contents in soil profiles were different in the systems. Water contents in 140-300 cm soil layers were lower than those in 0-140 cm soil layers in all treatments. The soil water storages in different soil layers were different in different cropping systems. The soil water storages in 0-300 cm soil layers decreased as the sequence of pea-wheat(2 a)+maize rotation(644.8 mm)>wheat(2 a)+millet-maize rotation(599.6 mm)>pea-wheat(2 a)+millet rotation(582.3 mm)>sainfoin-wheat(2 a) rotation(574.0 mm)>maize-wheat(2 a)+millet rotation(550.8 mm)>wheat succession(536.9 mm). The results also indicate that the soil water storages of rotation systems in 0-300 cm soil layers were more than wheat succession. Therefore, the grain-legume rotation is the better cropping practice on the Loess Plateau.

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备注/Memo

收稿日期:2011-5-29;改回日期:2011-6-20。
基金项目:中国科学院知识创新工程重大项目(KSCX-YW-09-02，KSCX-YW-09-07);国家重点基础研究发展计划(2009CB118604);国家科技支撑计划重大项目(2011BAD31B01)
作者简介:危锋(1978- )，男，陕西汉中人，博士，讲师，主要从事土壤养分循环与平衡方面的研究。E-mail：weifeng6688@126.com
通讯作者:郝明德(1957- )，男，陕西华县人，研究员，博士生导师，

更新日期/Last Update: 1900-01-01