IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.4
A novel model to assess soil productivity in the dry-hot valleys of China
DUAN Xing-wu; HAN Xu; HU Jin-ming; FENG De-tai; RONG Li
Corresponding AuthorHU Jin-ming
2017-04
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:4Pages:705-715
Subtype期刊论文
AbstractAccurate evaluation of soil productivity has been a long-standing challenge. Although numerous models for productivity assessment exist, most are cumbersome to use and require substantial parameter inputs. We developed a new empirical soil productivity model based on field investigations of soil erosion, soil physicochemical properties, and crop yields in the dry-hot valleys (DHVs) in China. We found that soil pH, and organic matter and available potassium contents significantly affected crop yields under eroded conditions of the DHVs. Moreover, available potassium content was the key factor affecting soil productivity. We then modified an existing soil productivity model by adding the following parameters: contents of effective water, potassium, organic matter, and clay, soil pH, and root weighting factor. The modified soil productivity model explained 63.5% of the crop yield. We concluded that the new model was simple, realistic, and exhibited strong predictability. In addition to providing an accurate assessment of soil productivity, our model could potentially be applied as a soil module in comprehensive crop models.
KeywordSoil Productivity Productivity Index Model Redundancy Analysis Dry-hot Valleys
DOI10.1007/s11629-016-4147-4
Indexed BySCI
Language英语
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18552
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.4
Recommended Citation
GB/T 7714
DUAN Xing-wu,HAN Xu,HU Jin-ming,et al. A novel model to assess soil productivity in the dry-hot valleys of China[J]. Journal of Mountain Science,2017,14(4):705-715.
APA DUAN Xing-wu,HAN Xu,HU Jin-ming,FENG De-tai,&RONG Li.(2017).A novel model to assess soil productivity in the dry-hot valleys of China.Journal of Mountain Science,14(4),705-715.
MLA DUAN Xing-wu,et al."A novel model to assess soil productivity in the dry-hot valleys of China".Journal of Mountain Science 14.4(2017):705-715.
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