资源科学 ›› 2016, Vol. 38 ›› Issue (11): 2037-2048.doi: 10.18402/resci.2016.11.03

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基于标准样地的省级耕地质量监测样地布设方法——以内蒙古自治区为例

张玉臻1,2, 孔祥斌1,2(), 刘炎3, 张蚌蚌1,2, 张青璞1,2, 王峰3, 李立强4, 魏利利4   

  1. 1. 中国农业大学资源与环境学院,北京 100193
    2. 国土资源部农用地质量与监测重点实验室,北京 100193
    3. 国土资源部咨询研究中心,北京 100035
    4. 内蒙古自治区土地整治中心,呼和浩特 010020
  • 收稿日期:2016-06-14 修回日期:2016-09-29 出版日期:2016-11-16 发布日期:2016-11-16
  • 作者简介:

    作者简介:张玉臻,女,山东潍坊市人,硕士生,研究方向为持续土地利用与土地评价。E-mail:zhangyuzhen66@126.com

  • 基金资助:
    国土资源部公益性行业科研专项课题(201011006-3)

Layout method of monitoring samples of cultivated land at the provincial level based on standard plots in Inner Mongolia

ZHANG Yuzhen1,2, KONG Xiangbin1,2(), LIU Yan3, ZHANG Bangbang1,2, ZHANG Qingpu1,2, WANG Feng3, LI Liqiang4, WEI Lili4   

  1. 1.College of Resources and Environmental Sciences ,China Agricultural University,Bejing 100193,China
    2. Key Laboratory for Farmland Quality,Monitoring and Control,National Ministry of Land and Resources,Beijing 100193,China
    3. Consulting and Research Center Ministry of Land and Resources,Beijing 100035,China
    4. Land Consolidation and Rehabilitation Center,The Inner Mongolia Autonomous Region,Huhehaote 010020,China
  • Received:2016-06-14 Revised:2016-09-29 Online:2016-11-16 Published:2016-11-16

摘要:

耕地质量是国家粮食安全的基础,科学布设耕地质量监测样地是支撑实时掌握国家耕地质量的关键技术环节。当前对耕地质量监测的研究主要集中在国家级和县级尺度,缺乏省级尺度。本文以内蒙古自治区为例,提出在省级标准样地基础上进行耕地监测样地数量和质量代表性两方面的优化,进而形成省级耕地质量监测布点的技术方法。本文运用最邻近点指数和面积代表性指数对标准样地的空间分布和数量进行分析和验证,结果表明,原144个标准样地在空间上呈均匀分布,但在数量上不能满足监测布样的要求;运用地统计学方法确定理论监测样地数量为194个;以“耕作制度二级区-土壤类型-地貌-土地利用现状”为基础,结合《中国土地资源图集》中的中国土地潜力分区图,将内蒙古划分为14个监测控制分区;依据“等别-监测分区”的控制顺序和优先选择标准样地的原则修正监测样地数量和确定其空间位置,最终确定省级监测样地数量为219个,其中标准样地124个,新增监测样地95个。依据本文提出的方法进行省级监测样地布设,一方面可以建立起省级尺度符合耕地质量空间变异特征的耕地质量监测布设样地体系,另一方面可以促进国家和县级耕地质量监测工作之间的衔接。

关键词: 标准样地, 省级尺度, 耕地质量, 监测样地, 监测控制分区, 内蒙古自治区

Abstract:

Food security depends on the quality and quantity of arable land. The implementation of dynamic balance of total amount of arable land has made a significant impact to the quantity of farmland,but less regarding the quality of cultivated land protection. Farmland quality monitoring includes three levels:national,provincial and county levels. At present,domestic research mostly focusses at the county scale and national level,and provincial level research for Inner Mongolia is lacking. Here we propose optimization of the quantity and quality of standard samples,and form a technical method for monitoring sample layout at the provincial level. Inner Mongolia setting 144 provincial standard samples,we verify standard sample number and spatial distribution using the nearest neighbor index and area representative index. The results show that the spatial distribution of the original standard samples is uniform,but the distribution of number does not meet monitoring requirements. The theoretical numbers of monitoring samples are 194 using the geo-statistical method. Based on ‘secondary zones-soil types-landscapes-land use status’ combined with the distribution of land resource potential,we analyze limiting factors of land use and divide the area into 14 monitoring zones. According to the principles of one monitoring sample in different monitoring partitions in one farmland gradation at least and area index,the number of monitoring samples is revised to 219,made up of 124 original standard samples and 95 new samples. Layout of provincial monitoring samples based on our method minimizes the cost to meet the requirements of provincial arable land quality monitoring and can build arable land quality monitoring systems at the provincial scale in line with spatial variability of farmland quality. This approach provides a scientific basis for the national implementation of cultivated land quality monitoring.

Key words: standard farmland, provincial scale, cultivated land quality, monitoring sample, monitoring partion, Inner Mongolia