Spatial Variability Analysis of Soil Nutrients Based on GIS and Geostatistics: A Case Study of Yisa Township, Yunnan, China
文献类型：期刊论文
| 作者 | Li Jing ; Min Qingwen; Li Wenhua; Bai Yanying; Dhruba Bijaya G C; Yuan Zheng
|
| 刊名 | Journal of Resources and Ecology
 |
| 出版日期 | 2014 |
| 卷号 | 5期号:4页码:348 |
| 关键词 | 空间分析 地统计学 土壤养分 Kriging插值 哈尼稻作梯田系统 全球重要农业文化遗产(GIAHS) |
| ISSN号 | 1674-764X |
| 英文摘要 | Hani rice terraces system is one of the Globally Important Agricultural Heritage Systems (GIAHS) pilot sites selected by FAO. Soil nutrients are an important symbol of soil fertility, and play an important role in the sustainable utilization of land. Based on geo-statistics and GIS, the spatial variation of pH, organic matter, total nitrogen, alkaline hydrolyzable nitrogen, available phosphorus and available potassium in the soil in Yisa (a town in Honghe County, Yunnan Province) was studied. The results show that the spatial variability of pH, organic matter, total nitrogen, alkaline hydrolyzable nitrogen and available potassium exhibited medium spatial variability, and the coefficients of variation are 12.54%, 40.14%, 40.00%, 34.89%, and 40.00% respectively. Available phosphorus exhibited strong spatial variability, and the coefficient of variation is 102.13%. The spatial variation of pH, organic matter, total nitrogen, alkaline hydrolyzable nitrogen and available potassium fit the index mode, however, the spatial variation of available phosphorus fits the spherical model. Total nitrogen, available phosphorus and available potassium were greatly affected by soil structural factors, while pH, organic matter and alkaline hydrolyzable nitrogen were affected by both structural and random factors. The spatial distribution of soil nutrients in Yisa was intuitively characterized by Kriging interpolation. It is very important to understand the spatial distribution of soil nutrients, which will provide the guidance for adjusting agricultural management measures such as fertilization. |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/153645]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 中国科学院地理科学与资源研究所 |
| 推荐引用方式 GB/T 7714 | Li Jing,Min Qingwen,Li Wenhua,et al. Spatial Variability Analysis of Soil Nutrients Based on GIS and Geostatistics: A Case Study of Yisa Township, Yunnan, China[J]. Journal of Resources and Ecology,2014,5(4):348. |
| APA | Li Jing,Min Qingwen,Li Wenhua,Bai Yanying,Dhruba Bijaya G C,&Yuan Zheng.(2014).Spatial Variability Analysis of Soil Nutrients Based on GIS and Geostatistics: A Case Study of Yisa Township, Yunnan, China.Journal of Resources and Ecology,5(4),348. |
| MLA | Li Jing,et al."Spatial Variability Analysis of Soil Nutrients Based on GIS and Geostatistics: A Case Study of Yisa Township, Yunnan, China".Journal of Resources and Ecology 5.4(2014):348. |
入库方式： OAI收割
来源：地理科学与资源研究所
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