IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2008  > Vol5 No.2
Evaluation of nitrogen cycling associated with agricultural production and environmental load in a mountain region, in Hokkaido, Japan
Liang Lei; Jin Datian; Hu Ning
Corresponding AuthorLiang, L
2008-06
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume5Issue:2Pages:130–139
AbstractThis study examined the nitrogen cycling associated with agricultural production and environmental load in central Hokkaido. The nitrogen (N) budget analysis model offers a new set of tools for evaluating N cycling in agro-ecosystems. The cycling index (CI) is a useful tool for estimating optimal N flows in farmlands. The fertilization index (FI) is a useful indicator for characterizing the N flows related to farms. Using these parameters, we analyzed all farm systems to estimate the optimal N cycling for minimizing N pollution in groundwater and maximizing agricultural production in mountain regions of Japan. The results showed that the critical N application rate (chemical fertilizer + manure) was 143.3 kg N ha(-1) y(-1). The critical inter-system input (chemical fertilizer N, imported food and feed N, and natural supplied N) was 169.2 kg N ha(-1) y(-1).
KeywordCycling Index Mountain Agro-ecosystem n Cycling n Load n Management Hokkaido Japan
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6049
CollectionJournal of Mountain Science_Journal of Mountain Science-2008_Vol5 No.2
Recommended Citation
GB/T 7714
Liang Lei,Jin Datian,Hu Ning. Evaluation of nitrogen cycling associated with agricultural production and environmental load in a mountain region, in Hokkaido, Japan[J]. JOURNAL OF MOUNTAIN SCIENCE,2008,5(2):130–139.
APA Liang Lei,Jin Datian,&Hu Ning.(2008).Evaluation of nitrogen cycling associated with agricultural production and environmental load in a mountain region, in Hokkaido, Japan.JOURNAL OF MOUNTAIN SCIENCE,5(2),130–139.
MLA Liang Lei,et al."Evaluation of nitrogen cycling associated with agricultural production and environmental load in a mountain region, in Hokkaido, Japan".JOURNAL OF MOUNTAIN SCIENCE 5.2(2008):130–139.
Files in This Item:
File Name/Size DocType Version Access License
Evaluation of Nitrog(207KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liang Lei]'s Articles
[Jin Datian]'s Articles
[Hu Ning]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liang Lei]'s Articles
[Jin Datian]'s Articles
[Hu Ning]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liang Lei]'s Articles
[Jin Datian]'s Articles
[Hu Ning]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Evaluation of Nitrogen Cycling Associated with.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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