| 基于生态导向的基本农田空间配置研究--以河北省卢龙县为例 |
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| 引用本文： | 丁庆龙,门明新.基于生态导向的基本农田空间配置研究--以河北省卢龙县为例[J].中国生态农业学报,2014,22(3):342-348. |
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| 作者姓名： | 丁庆龙 门明新 |
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| 作者单位： | 河北农业大学国土资源学院 保定 071000;河北农业大学国土资源学院 保定 071000 |
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| 基金项目： | 河北省高等学校科学技术研究优秀青年基金项目(Y2012015)和河北省自然科学基金项目(D2010000795)资助 |
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| 摘 要： | 基本农田是耕地中的精华,具有重要的战略地位。近年来,受市场经济驱动和退耕还林的影响,基本农田保护空间不断被压缩。为协调地方粮食安全、经济发展和生态安全之间的关系,该文在基本农田需求数量预算和生态基础设施构建的基础上,提出综合采用"反规划"理念和建设用地发展适宜思想,构建河北省卢龙县网络状生态基础设施作为基本农田划定的约束框架。同时,在建设用地适宜性评价的基础上,划分了县域栅格单元的空间建设开发适宜程度,并选取适宜度高的栅格单元用来作为预留建设用地。研究以卢龙县为例,采用GIS空间分析技术将中、高安全格局和建设用地适宜度低的地区叠加作为基本农田配置重点区域,将预测目标年36 800.27 hm2基本农田按照耕地等级由高到低依次布局到各乡镇。其中,位于生态基础设施中安全格局范围内,建设用地发展适宜度不高的燕河营镇、卢龙镇、印庄乡和潘庄镇面积为15 570.45 hm2,占基本农田总量的42.31%。结果表明,基于生态导向的基本农田空间配置能够在保护区域生态环境与为未来发展预留建设用地的前提下,保护基本农田。在新视角下构建基本农田数量、质量、生态及建设适宜度为一体的评价体系,从生态保护和空间战略上实现粮食安全、生态保护和经济发展共赢的局面。该方法科学合理、切实可行,能够为地区基本农田空间配置提供指导和借鉴。
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| 关 键 词： | 生态导向 反规划 基本农田 空间配置 卢龙县 |
| 收稿时间： | 2013/10/11 0:00:00 |
| 修稿时间： | 1/6/2014 12:00:00 AM |
Ecologically oriented spatial configuration of basic farmlands in Lulong County, Hebei Province |
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| DING Qinglong and MEN Mingxin.Ecologically oriented spatial configuration of basic farmlands in Lulong County, Hebei Province[J].Chinese Journal of Eco-Agriculture,2014,22(3):342-348. |
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| Authors: | DING Qinglong and MEN Mingxin |
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| Institution: | College of Land and Resources, Hebei Agricultural University, Baoding 071000, China;College of Land and Resources, Hebei Agricultural University, Baoding 071000, China |
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| Abstract: | The basic farmlands are the essences of cultivated land, and support the functions of production, social security and ecological protection. Driven by market economy and afforestation of farmlands in recent years, the production space of basic farmlands has reduced continuously. Thus basic farmland protection and configuration has become a hotly debated issue at national and international levels. However, there is little integrated and comprehensive research on correlation among food security, economic development and ecological protection. To coordinate the relationship among food security, economic development and ecological protection, the appropriate planning of ecosystem and establishment of safe regional landscape pattern are necessary. Based on the ecological infrastructure construction and basic farmland demand, this paper predicted basic farmland area and allocation in the target year of Lulong County, Hebei Province by comprehensively adopting the ideas of "anti-planning" and ecological infrastructure. The study established a network of ecological infrastructure as the constraint framework of the basic farmland demarcation in Lulong County. The northern, southeast and southwest parts presented low-level of security where the natural conditions required strict protection and non-construction of farmlands. The area from the south to north presented medium-level security serving as a transition zone of the low-level security. The high-level security areas embedded among the low and medium security area had severe ecological conditions. Based on evaluation of the suitability of land for construction, the paper adopted a "matrix" to divide the county development grid unit space suitability into degrees. The higher degrees were used as reserved lands for future development and construction. The development potential was high in the southwest of Lulong County and medium in the central region development, which constituted the key areas for basic farmland management in the study area. The northern part of the county was constrained in the low development zone. It was not fit for the delineation and layout of basic farmlands. This paper allocated the areas with both medium-high security and low suitability for construction as the key configurations of basic farmlands in the region by using GIS. Based on this allocation, 36 800.27 hm2 basic farmlands were allocated into different towns of the county. Among the zones, the farmland with both medium-high security and low suitability for construction were in Yanheying, Lulong, Yinzhuangxiang and Panzhuang townships with total land area of 15 570.45 hm2, which was 42.31% of total basic farmlands in the study area. The results showed that the spatial configuration of basic farmlands from ecological orientation was sufficiently protective for ecological environment and reserved the construction lands for future development. The method and new perspective were good for evaluation of ecosystems in terms of quantity, quality, ecology and construction suitability. |
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| Keywords: | Ecological oriented Anti-planning Basic farmland Space configuration Lulong County |
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