江南四省耕地后备资源调查与评价

发布时间：2019-07-17 06:20

【摘要】：耕地后备资源储量调查及适宜性评价能够为耕地后备资源的合理开发利用提供科学依据。本文将3S技术支撑下的室内分析和野外科学考察相结合,从自然适宜性和生态安全性角度构建了江南四省(湖南、江西、浙江和福建)耕地后备资源的自然-生态适宜性指标体系,以"一票否决"和"设置容许度"两种方式对纳入的生态安全性指标进行区分,实现江南四省耕地后备资源的提取和评价。结果发现:江南四省共有未利用土地8 992.30km2,耕地后备资源总量为5 394.70km2,集中连片大面积的耕地后备资源基本上已开垦殆尽。储量少、质量低、分布零散是该地区耕地后备资源的基本特征。小面积耕地后备资源的充分利用已经成为江南四省维持耕地占补平衡的需要。
[Abstract]:The investigation and suitability evaluation of cultivated land reserve resources can provide scientific basis for the rational development and utilization of cultivated land reserve resources. Based on the indoor analysis supported by 3s technology and the field scientific investigation, this paper constructs the natural-ecological suitability index system of cultivated land reserve resources in four provinces of the south of the Yangtze River (Hunan, Jiangxi, Zhejiang and Fujian) from the point of view of natural suitability and ecological security, and distinguishes the included ecological security indexes by means of "one vote veto" and "setting permission degree". To realize the extraction and evaluation of cultivated land reserve resources in the four provinces of the south of the Yangtze River. The results show that there are 8992.30km2 of unused land in the four provinces of the south of the Yangtze River, and the total reserve resources of cultivated land are 5394.70km2. the reserve resources of cultivated land in a large area have been basically reclaimed. Small reserves, low quality and scattered distribution are the basic characteristics of cultivated land reserve resources in this area. The full utilization of small area cultivated land reserve resources has become the need to maintain the balance of cultivated land occupation and compensation in the four provinces of the south of the Yangtze River.
【作者单位】：中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室;中国科学院大学;
【基金】：国家科技部科技基础性工作专项:“我国南方丘陵山区土地资源综合考察”(2012FY111800-01-01)
【分类号】：F323.211

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