| 引用本文: | 贺仓国,姚怀柱,于广浒,等.江苏沿海地区农业水土资源匹配及其效益差异分析[J].灌溉排水学报,2023,42(2):110-116. |
| HE Cangguo,YAO Huaizhu,YU Guanghu,et al.江苏沿海地区农业水土资源匹配及其效益差异分析[J].灌溉排水学报,2023,42(2):110-116. |
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| 摘要: |
| 【目的】探究江苏沿海地区农业水土资源与效益的时空匹配差异。【方法】采用基尼系数与泰尔指数相结合的方法，分析了2009—2020年江苏沿海地区农业水土资源匹配及其效益的差异构成，采用耦合协调度评价各指标之间的协调发展水平。【结果】江苏沿海地区垦殖率高于全省平均水平，农业水土资源匹配系数低于全省平均水平，且在空间分布上存在错位现象。农业水土资源匹配系数及其效益基尼系数特征为“耕地效益基尼系数＜农业水土资源匹配系数基尼系数＜农田灌溉水效益基尼系数”，与泰尔指数结果一致。耦合协调度在0.35~0.40之间波动变化。【结论】江苏沿海地区农业水土资源呈“耕地资源丰富，农田灌溉水资源短缺”的特点，耕地对农业产值的匹配程度显著优于农田灌溉水资源，有限的水资源制约了江苏沿海地区的农业经济发展。各项指标差异主要来源于沿海3市的内部差异，且耦合协调发展水平由比较均衡状态向一般失衡状态转变。 |
| 关键词: 沿海地区；农业水土资源；基尼系数；泰尔指数；耦合协调度 |
| DOI：10.13522/j.cnki.ggps.2022308 |
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| 基金项目: |
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| Balance Between Water Resources and Soil Resource in Coastal Regions of Jiangsu Province and Its Economic Analysis |
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HE Cangguo, YAO Huaizhu, YU Guanghu, GUAN Wei, XU Binbing, SHE Dongli
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1. College of Agricultural Science and Engineering, Hohai University, Nanjing 211100, China;
2. Development Center for Rural Water Conservany and Technology of Jiangsu Province, Nanjing 210029, China;
3. Jiangsu Nongken Group Co. Ltd., Nanjing 210008, China; 4. Jiangsu Linhai Farm Co. Ltd., Sheyang 224353, China
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| Abstract: |
| 【Background and Objective】 Agriculture in many regions in China relies on irrigation, while the available water resources in some regions might not be sufficient to meet the demand. Understanding this imbalance is essential to economic management, and this paper calculates spatiotemporal variation in this balance across coastal regions in Jiangsu province.【Method】The analysis is based on the Gini coefficient and the Theil index using data measured from 2009 to 2020. The coupled coordination method is used to evaluate the level of coordinated development in these regions.【Result】The reclaimed stalinized lands in the coastal regions for agricultural production is higher than provincial average, and the balance between agricultural water resources and soil resources is lower than provincial average. The Gini coefficient characterizing the balance between agricultural water and soil resources is consistent with the Theil index, and it is ranked in the order of cultivated land benefit < agricultural water and soil resources < agricultural irrigation water benefit. The coupled coordination degree varies from 0.35 to 0.40.【Conclusion】The coastal regions in Jiangsu province are rich in land resources and poor in irrigation water resources. The lack of water resources is the main factor restricting development of the agricultural economy in these regions. The overall difference in the Gini coefficient and the Theil index in these regions is due to the inter-region difference; the coupled and coordinated development level in the regions is fragile and could shift from balance to unbalance. |
| Key words: coastal area; agricultural water and soil resources; Gini coefficient; Theil index; coupling coordination model |
