Analysis of Agricultural Land in the Third National Land Survey and Countermeasures for Cultivated Land Protection
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摘要:
第3次全国国土调查以来,虽农用地面积有增加,但耕地数量比第2次全国国土调查期间有所减少,国家提出要落实“长牙齿”的耕地保护硬措施,严守1.2亿hm2(18亿亩)耕地红线,防止耕地非农化、非粮化。选择2个县级数据库,从调查的角度分析三调数据库种植属性和恢复属性,得出因区位原因出现平原区与山区耕地种植情况差异大、耕地流转方向不同的结论,最后提出了耕地保护的3点对策。
Abstract:Since the third national land survey, although the area of agricultural land has increased, the number of cultivated land has decreased compared with the second adjustment period. The state proposes to implement hard measures of "long teeth" for cultivated land protection, strictly abide by the red line of 120 million hm2 of cultivated land, and prevent non-agricultural and non grain transformation of cultivated land. Two county-level databases were selected to analyze planting attributes and restoration attributes of database from perspective of investigation, and a conclusion was obtained that there were large differences in cultivated land planting between plain areas and mountainous areas and different directions of cultivated land circulation due to location reasons. Finally, three countermeasures for cultivated land protection were put forward.
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Keywords:
- national land survey /
- agricultural land /
- cultivated land /
- planting attribute /
- restore attribute
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表 1 三调与二调农用地面积对比
Table 1. Agricultural land area comparison of the third and second national land survey
地类 二调公报
面积/万hm2三调公报
面积/万hm2变化面积/万hm2 变化/% 耕地 13 538.50 12 786.19 −752.31 −5.5 园地 1 481.20 2 017.16 535.96 36.0 林地 25 395.00 28 412.59 3 017.59 11.9 草地 28 731.40 26 453.01 −2 278.39 −7.9 表 2 耕地数据库结构差异
Table 2. Difference of cultivated land database structure
类别 二调 三调 二级地类 水田(011)、水浇地(012)、旱地(013) 水田(0101)、水浇地(0102)、旱地(0103) 种植属性 无 种植粮食作物、种植非粮食作物、粮与非粮轮作、未耕种、休耕、林粮间作、即可恢复、工程恢复 图斑细化 无 河道耕地、湖区耕地、林区耕地、牧区耕地、沙荒耕地、石漠化耕地 表 3 耕地种植属性分地类统计
Table 3. Statistics of cultivated land planting attributes by land type
单位:hm2 DLBM FLS LS LYFL WG XG 合计 0101 0.37 0.20 0 0 0 0.57 0102 66.69 330.72 1.07 10.49 0 408.97 0103 391.55 142 267.26 227.86 675.44 77.97 143 640.08 合计 458.61 142 598.18 228.93 685.93 77.97 144 049.62 表 4 恢复属性分地类统计
Table 4. Statistics of restoration attributes by land type
DLBM GCHF/hm2 JKHF/hm2 小计/hm2 占比/% 0201 777.65 329.35 1107.00 26.2 0204 3.64 21.83 25.47 0.6 0301 390.74 70.98 461.72 10.9 0302 0.12 0 0.12 0 0305 0.09 0 0.09 0 0307 702.27 147.43 849.7 20.1 1104 1 699.59 84.17 1 783.76 42.2 合计 3 574.10 653.76 4 227.86 100.0 表 5 耕地种植属性分地类统计
Table 5. Statistics of cultivated land planting attributes by land type
单位:hm2 DLBM FLS LLJZ LS LYFL WG 合计 0101 0 0 38.08 3.64 5.98 47.70 0103 13.55 4.68 1.09 22 435.16 299.78 22 754.26 合计 13.55 4.68 39.17 22 438.80 305.76 22 801.96 表 6 恢复属性分地类统计
Table 6. Statistics of restoration attributes by land type
DLBM GCHF/hm2 JKHF/hm2 合计/hm2 占比/% 0201 16.86 34.63 51.49 1.2 0202 25.88 1719.56 1 745.44 40.7 0204 20.30 19.69 39.99 0.9 0301 1 039.55 24.69 1 064.24 24.8 0302 30.74 0.03 30.77 0.7 0305 982.32 25.97 1 008.29 23.5 0307 295.32 36.52 331.84 7.7 0404 0.03 0 0.03 0 1104 12.20 0.34 12.54 0.3 合计 2 423.20 1 861.43 4 284.63 100.0 -
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