Effects of Grass Litter on Combating Soil Polarization of Robinia pseudoacia Forest in the Loess Plateau

doi:10.11733/j.issn.1007-0435.2014.06.015

Acta Agrestia Sinica ›› 2014, Vol. 22 ›› Issue (6): 1245-1251.DOI: 10.11733/j.issn.1007-0435.2014.06.015

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Effects of Grass Litter on Combating Soil Polarization of Robinia pseudoacia Forest in the Loess Plateau

LUC Nhu Trung^1,2, LIU Zeng-wen^3,4, ZHANG Xiao-xi¹, BING Yuan-hao⁵, ZHU Bo-chao³

1. Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi Province 712100, China;
2. Department of Agriculture and Rural Development of Lao Cai, Lao Cai City 330100, Vietnam;
3. College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China;
4. Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi Province 712100, China;
5. College of Forestry, Northwest A&F University, Yangling, Shaanxi Province 712100, China

Received:2013-12-16 Revised:2014-02-11 Online:2014-12-15 Published:2014-12-01

黄土高原利用牧草枯落物防治刺槐纯林土壤极化的效应

Luc Nhu Trung^1,2, 刘增文^3,4, 张晓曦¹, 邴塬皓⁵, 朱博超³

1. 西北农林科技大学水土保持研究所, 陕西杨凌 712100;
2. 农业与农村发展厅, 越南老街 330100;
3. 西北农林科技大学资源环境学院, 陕西杨凌 712100;
4. 农业部西北植物营养与农业环境重点实验室, 陕西杨凌 712100;
5. 西北农林科技大学林学院, 陕西杨凌 712100

通讯作者: 刘增文
作者简介:Luc Nhu Trung(1981-),男,越南老街人,博士留学生,研究方向为林业生态工程,E-mail:trungfrc@gmail.com
基金资助:
国家自然科学基金项目(31070630)资助

Abstract

Abstract:

Soil polarization due to pure forests is an important problem affecting the stability and sustainable development of ecosystem and the most effective solution may be fertilizing with grass litter or forming tree-grass complex ecosystem. For this study, Robinia pseudoacia forest widely distributed in the Loess Plateau was chosen as objective and a 120 d incubation experiment of forest soil mixed with 7 grass litters was carried out to investigate the effects of grass litter on combating soil polarization. The results showed that Medicago sativa was the most effective on improving the soil properties of the loess hilly areas(Huangling), followed by Melilotus officinalis, but Leapedeza bicolor exacerbated the soil properties obviously, followed by Vicia villosa, Onobrychis viciifolia and Astragalus adsurgens. Melilotus officinalis and Astragalus adsurgens significantly improved the soil properties of the loess gully area(Chunhua), followed by Vicia villosa, but Coronilla varia exacerbated the soil properties obviously, followed by Onobrychis viciifolia.

Key words: Grass litter, Robinia pseudoacia forest, Soil polarization

摘要：

以黄土高原广泛分布的人工刺槐(Robinia pseudoacia)纯林为研究对象,通过采集林地腐殖质土壤并与7种常见豆科牧草的枯落物进行120 d混合分解培养试验,分析牧草枯落物对刺槐纯林土壤性质的改良和土壤极化的防治效应.结果表明:对于黄土丘陵区(黄陵)刺槐纯林土壤,苜蓿(Medicago sativa)具有明显的改良作用,其次为草木樨(Melilotus officinalis);而胡枝子(Leapedeza bicolor)具有明显的恶化作用,其次为毛苕子(Vicia villosa)、红豆草(Onobrychis viciifolia)和沙打旺(Astragalus adsurgens);对于黄土残塬沟壑区(淳化)刺槐纯林土壤,草木樨和沙打旺具有明显的改良作用,其次为毛苕子;而小冠花(Coronilla varia)具有明显的恶化作用,其次为红豆草.

关键词: 牧草枯落物, 刺槐纯林, 土壤极化

CLC Number:

S714.2

LUC Nhu Trung, LIU Zeng-wen, ZHANG Xiao-xi, BING Yuan-hao, ZHU Bo-chao. Effects of Grass Litter on Combating Soil Polarization of Robinia pseudoacia Forest in the Loess Plateau[J]. Acta Agrestia Sinica, 2014, 22(6): 1245-1251.

Luc Nhu Trung, 刘增文, 张晓曦, 邴塬皓, 朱博超. 黄土高原利用牧草枯落物防治刺槐纯林土壤极化的效应[J]. 草地学报, 2014, 22(6): 1245-1251.

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Effects of Grass Litter on Combating Soil Polarization of Robinia pseudoacia Forest in the Loess Plateau

黄土高原利用牧草枯落物防治刺槐纯林土壤极化的效应

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[2]	LU Guang-xin, CHEN Xiu-rong, YANG Cheng-de, XUE Li. Relationship Between Cellulase Secreted by Microdochium bolleyi and Total Organic Matter Degradation of Two Kinds of Lawn Grass Litter [J]. , 2011, 19(6): 954-959.