| 摘要: |
| 为解析山东省农业水土资源空间分布及匹配状况，本研究利用基尼系数、基于统计法的单位耕地面积所拥有的可利用水资源量，分析山东省17 个地级市2007—2016年的农业水土资源时空分布与匹配程度，并利用农业水土资源当量系数评价2016年山东省水土资源的短缺程度。结果表明:1)引入农业水土资源当量系数，对2016年山东省17 个地级市的水资源及耕地资源的短缺程度进行分析，可以看出山东省14 个地级市处于水资源短缺状态，而且山东省农业水土资源处于较为不平衡状态，水资源的供给量不能满足耕地资源的需求量；2)2007—2016年山东省的水土资源空间分布呈现“西北多，东中部少”的分布格局，山东省平均水土资源匹配系数为0.21 万m3/hm2，不到全国平均水土资源匹配系数的一半。2007—2016年平均水土资源匹配系数呈现下降趋势，说明17 个地级市的水土资源匹配程度开始变差。水土资源匹配呈现西部优于东部的空间分布格局。 |
| 关键词: 农业水土资源 匹配格局 基尼系数 水土资源匹配系数 当量系数 |
| DOI：10.11841/j.issn.1007-4333.2020.11.01 |
| 分类号: |
| 基金项目:国家科技支撑计划(2015BAD06B01) |
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| Time-space matching pattern and evaluation of agricultural water and soil resources in Shandong Province |
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LI Xiaoyan1,2,HAO Jinmin1,2*,CHEN Aiqi1,2
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1.College of Land Science and Technology, China Agricultural University, Beijing 100193, China;2.Key Laboratory for Agricultural Land Quality Monitoring and Control, The Ministry of Land and Resources, Beijing 100193, China
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| Abstract: |
| In order to understand the spatial distribution and matching status of agricultural water and land resources in Shandong Province, the agricultural water and soil resources of 17 prefecture-level cities in Shandong Province from 2007 to 2016 were analyzed using the Gini coefficient based on the amount of available water resources per unit of cultivated area by statistical methods. The spatial and temporal distribution and matching degree of resources, and the use of agricultural water and soil resources equivalent coefficients were adopted to evaluate the shortage of water and land resources in Shandong Province in 2016. The results showed that: 1)By introducing the equivalent coefficient of agricultural water and soil resources, the shortage degree of water resources and cultivated land resources in the 17 prefecture-levels in Shandong Province in 2016 was investigated. It was found that there were 14 prefecture-level cities in Shandong Province in the state of water shortage. Moreover, the agricultural water and land resources in Shandong Province were in a relatively unbalanced state, and the supply of water resources did not meet the demand for cultivated land resources; 2)From 2007 to 2016, the spatial distribution of water and soil resources in Shandong Province showed a distribution pattern of “More in northwest, less in central and eastern”. The average water and soil resource matching coefficient of Shandong Province was 2 100 m3/hm2, which was less than half of the national average matching coefficient. The average water and soil resource matching coefficient in the 2007-2016 study period showed a downward trend, indicating that the matching degree of water and land resource in the 17 prefecture-level cities began to deteriorate. The overall matching degree of water and soil resources presented spatial distribution pattern of “The west is superior to the east”. |
| Key words: agricultural water and land resources matching pattern Gini coefficient matching coefficient of water and land resources equivalent factor |
