YU Ju,ZHENG Hong-gang,WEN Jie,et al.Characteristics of Cultivated Land Natural Quality at Different Elevation Gradients in Yunnan Province[J].Research of Soil and Water Conservation,2014,21(04):224-228.
云南省不同海拔梯度耕地自然质量等特征分析
- Title:
- Characteristics of Cultivated Land Natural Quality at Different Elevation Gradients in Yunnan Province
- Keywords:
- elevation gradient; cultivated land; natural quality; Yunnan Province
- 分类号:
- F301.24
- 摘要:
- 针对农用地分等规程中未将海拔作为分等因素的情况，以云南省为例，探明耕地自然质量等随海拔梯度变化的规律。通过采用传统数理统计分析和统计学空间分析相结合的方法，综合分析耕地自然质量与海拔梯度的相关性。结果表明：自然质量等总体上呈现随海拔升高而降低的趋势，但海拔梯度在1 500～2 000 m和3 500 m以上的区域内有轻微的回升。因此，海拔层面的垂直分布直接影响到区域耕地结构，准确反映不同海拔区域耕地资源配置状况，对合理利用和保护耕地资源，挖掘资源潜力，提高农业资源利用效率，促进经济社会的可持续发展有着重要的现实意义。
- Abstract:
- Yunnan province was taken as an example in this study. The purpose of this study is to find out the essential of natural quality of cultivated land changing with elevation gradients because elevation is not taken account of the grading factor for farmland classification procedures. The correlation of cultivated natural quality and elevation gradient was comprehensively analyzed by using the methods combining the traditional mathematical statistics analysis with statistical analysis.With this methods, natural quality appears the trend that it will reduce if the altitude increases on the whole, but it was a slight recovery in the area where the gradients are 1 500~2 000 meters and above 3 500 meters. The results indicate that elevation level of the vertical distribution directly affects the regional cultivated land structure. It accurately reflects the status of cultivated land resource allocation in different elevation areas, it has important practical significance in enhancing the resource potential, improving the utilization efficiency of agricultural resources and promoting the economic and social sustainable development.
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备注/Memo
收稿日期:2013-10-29;改回日期:2013-12-01。
基金项目:国土资源部资助项目“云南省农用地分等研究”（20060915）
作者简介:余菊(1989-),女,湖北黄冈人,硕士研究生,主要从事土地资源配置与可持续利用研究。E-mail:minifish0929@163.com
通讯作者:郑宏刚(1971-),男,云南禄丰人,副教授,主要从事水土保持与国土资源利用研究。E-mail:ynhg61@126.com