Advanced   Register
XTBG OpenIR  > 2012年后新成立研究组  > 期刊论文

title: Phosphorous fractions in soils of rubber-based agroforestry systems: Influence of season, management and stand age
author: Liu, Chenggang;  Jin, Yanqiang;  Liu, Changan;  Tang, Jianwei;  Wang, Qingwei;  Xu, Mingxi
Issued Date: 2018
Abstract: Rubber-based agroforestry system is a vital management practice and its productivity is often controlled by soil phosphorus (P) nutrient, but little information is available on P fractions dynamics in such system. The aim of this study was to examine the seasonal, management and stand age effects on P fractions, acid phosphatase activity, microbial biomass P, other physical-chemical properties and litter and roots in four systems: 10-year-old rubber mono-(YM) and intercropping (YI) with N-fixing species (NFS), 22-year-old mono-(MM) and intercropping (MI) in Xishuangbanna, Southwestern China. Most P fractions varied seasonally at different depths, with highest values in the fog-cool season (i.e. labile P at 5-60 cm, non-labile P and total P at 30-60 cm). By contrast, moderately labile P varied little over time, except in MI that had lower values in the rainy season. Compared with their monoculture counterparts, YI doubled resin-Pi concentration but decreased NaHCO3-extractable P, HCl-P-i and residual-P-o at the 0-30 cm depth, whereas MI had hardly any changes in P species at the 60-cm depth. Surprisingly, residual-P-o was enriched down to the deepest soil (30-60 cm) in both YI and MI in the fog-cool season. All P fractions, except NaOH0.1-P-i, were greatly reduced with increasing stand age. In addition to plants uptake, these changes can be explained by seasonality in soil environments (e.g. moisture, temperature, pH and microbial activity) and decomposition of litter and roots. Moreover, YI decreased labile P-o stock, but MI increased moderately labile P-i at the 60-cm depth across seasons. The results imply that a large amount of residual-P-o exists in acidic Oxisol from China and that they can be reasonably exploited to reduce the application of P fertilizers, highlighting the importance of P-o pool. Taken together, intercropping mature rubber plantation with NFS appears to be an effective way to enhance productivity while maintaining adequate soil P concentration over the long run. (c) 2017 Elsevier B.V. All rights reserved.
Source: SCIENCE OF THE TOTAL ENVIRONMENT
Related URLs: 10.1016/j.scitotenv.2017.10.156
Appears in Collections:2012年后新成立研究组_期刊论文

Files in This Item:

File SizeFormat
Phosphorous fractions in soils of rubber-based agroforestry systems_ Influence of season, management and stand age.pdf1748KbAdobe PDFView  Download


全文许可: Creative Commons 署名-非商业性使用-相同方式共享 3.0

Recommended Citation:
Liu, Chenggang,Jin, Yanqiang,Liu, Changan,et al. Phosphorous Fractions In Soils Of Rubber-based Agroforestry Systems: Influence Of Season, Management And Stand Age[J]. Science Of The Total Environment,2018,616(X):1576-1588.

SCI Citaion Data:
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Liu, Chenggang]'s Articles
 [Jin, Yanqiang]'s Articles
 [Liu, Changan]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Liu, Chenggang]‘s Articles
 [Jin, Yanqiang]‘s Articles
 [Liu, Changan]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace