| 乡（镇）级区域土壤养分空间变异与分区管理技术研究 |
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| 引用本文： | 黄绍文、金继运.乡（镇）级区域土壤养分空间变异与分区管理技术研究[J].资源科学,2002,24(2):76-82. |
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| 作者姓名： | 黄绍文、金继运 |
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| 作者单位： | 中国农业科学院土壤肥料研究所,北京,100081 |
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| 基金项目： | 国家“九五”科技攻关项目“黄淮海平原养分资源持续高效利用新技术系统研究与示范”(编号 :96 0 0 4 0 1 14 1),在农业部植物营养学重点开放实验室完成 |
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| 摘 要： | 该文采用传统统计和地统计相结合的方法 ,研究了乡 (镇 )级区域土壤养分的空间变异与分区管理技术。结果表明 ,菜田土壤主要养分N、P、K、Mn、Zn、Fe等尤其是P、Mn和Fe的速效含量明显高于粮田 ,种植制度和土壤肥料有关的管理历史是对土壤养分进行宏观分区管理的一个重要依据 ;粮田土壤N、P、K、Mn、Zn和Fe普遍缺乏 ,不同土壤养分的变异情况各不相同。整个区域土壤N、P、K、Mn、Zn等主要养分速效含量的空间变异性存在着半方差结构 ,在较大范围内存在存在着空间相关性 ,这一基本趋势对土壤养分分区管理是有利的。粮田区域土壤养分速效含量呈现较明显的空间分布格局 ,对土壤主要养分N、P、K、Mn和Zn可分别分成 2、3、2、2和 2个养分分区 ,因而对这 5个土壤养分进行分区管理可行。作物高产优质分区平衡施肥技术在小麦和玉米上使产量分别增加 1 0 9%～ 1 2 5 %和 1 2 5 %～ 2 1 7% ,使经济效益分别提高5 89 97～ 74 6 5 6元 hm2 和 5 2 9 6 2～ 1 34 3 4 5元 hm2 。
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| 关 键 词： | 土壤养分 空间变异 分区管理 |
| 文章编号： | 1007-7588(2002)02-0076-07 |
| 修稿时间： | 2001年2月20日 |
SPATIAL VARIABILITY AND REGIONALIZED MANAGEMENT TECHNOLOGY OF SOIL NUTRIENTS: THE CASE OF HONGQIAO TOWNSHIP |
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| HUANG Shao-wen,JIN Ji-yun,YANG Li-ping,CHENG Ming-fang.SPATIAL VARIABILITY AND REGIONALIZED MANAGEMENT TECHNOLOGY OF SOIL NUTRIENTS: THE CASE OF HONGQIAO TOWNSHIP[J].Resources Science,2002,24(2):76-82. |
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| Authors: | HUANG Shao-wen JIN Ji-yun YANG Li-ping CHENG Ming-fang |
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| Abstract: | Spatial variability and regionalized management technology of soil nutrients in Hongqiao township was studies in this paper, using traditional statistics and geo-statistics. The results indicated that Soil N, P, K, Mn, Zn, and Fe contents for vegetable region were obviously higher than those of grain crop region, especially elements of P, Mn, and Fe. Thus, relative macro-regionalized soil nutrient management based on different cropping system and history of relative fertilizer management in Hongqiao township was feasible. As to different land types, soil nutrient differs much, for example, grain crop region was widely deficient in N, P, K, Mn, Zn and Fe. While in the whole region of Hongqiao township, there were semi-variance structures for spatial variability of soil N, P, K, Mn, and Zn contents, which indicated that spatial correlation in content developed in large-block scale and basic tendency will be useful to soil nutrient regionalized management. In term of spatial difference of soil nutrient, grain crop region could be divided into 2 to 3 management units, and each was consisted of connected fields. For an instance, with respects to N, P, K, Mn and Zn, the number of management units for grain crop region was 2, 3, 2, 2, and 2, respectively. It also indicated that by using regionalized balance fertilization technology on wheat and corn, grain yield and income would all increase greatly. |
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| Keywords: | Soil nutrient Spatial variability Regionalized management |
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