[1]吕春花,郑粉莉.冰草根系生长发育对土壤团聚体形成和稳定性的影响[J].水土保持研究,2004,11(04):97-100.
　LU Chun-hua,ZHENG Fen-li.Soil Aggregate Formation and Stability as Effected by Root Growth of Ryegrass[J].Research of Soil and Water Conservation,2004,11(04):97-100.
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冰草根系生长发育对土壤团聚体形成和稳定性的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 11 期数: 2004年04期 页码: 97-100 栏目: 出版日期: 1900-01-01
Title:
Soil Aggregate Formation and Stability as Effected by Root Growth of Ryegrass
作者:
吕春花1,2, 郑粉莉1,2
1. 西北农林科技大学资源环境学院, 陕西杨陵 712100;
2. 中科院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨陵 712100
Author(s):
LU Chun-hua1,2, ZHENG Fen-li1,2
1. The State Key Lab of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resource, Yangling, Shaanxi 712100, China;
2. Northwest Sci-tech University of Agriculture and Forestry, Yangling, Shaanxi 712100, China
关键词:
冰草生长发育; 土壤团聚体; 稳定性; 盆栽实验
Keywords:
ryegrass growth; soil aggregate; stability; pot experiment
分类号:
S152.4
摘要:
以陕北黄绵土为材料，采用德国生产的生长箱进行盆栽实验，研究冰草生长发育对土壤团聚体形成和稳定性的影响。实验设计包括5个生长期（15，30，45，60，75d）和各生长阶段的对照实验。研究结果表明，在75d冰草生长发育过程中，冰草根系生长发育对土壤团聚体的形成及其稳定性的影响不明显，而土壤干湿交替对土壤团聚体的影响大于冰草根系生长发育对土壤团聚体的影响。造成冰草根系生长发育对土壤团聚体稳定性影响不明显的主要原因是黄绵土团粒结构较差和冰草生长期较短。
Abstract:
A pot experiment in growth cabinet was designed to investigate the effects of root growth on soil aggregate formation and stability, taking the loess soil from the North Shaanxi Province as the experimental material. The experimental variables included 5 growth periods (15, 30, 45 60, 75 d) and a control of bare in each growth period. The result showed during ryegrass growth process of 75 days, soil aggregate formation and stability were not significantly different, but the effects of the alternation between dry and wet was more significant than the effects of root growth. The reason was less aggregate structure of loess soil and short growth duration of ryegrass.

参考文献/References:

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备注/Memo

收稿日期:2004-7-10;改回日期:。
基金项目:国家自然科学基金西部重大研究计划项目“近140年子午岭地区植被—侵蚀—土壤互动作用及机理”（90302001）
作者简介:吕春花（1981- ），江苏盐城人，在读硕士生，研究方向为植被恢复与环境评价。

更新日期/Last Update: 1900-01-01