Soil Fertility Map for Food Legumes Production Areas in China.
Soil Fertility Map for Food Legumes Production Areas in China.
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DOI：
10.1038/srep26102
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发表时间：
2016-05-23
影响因子：
4.6
通讯作者：
Zong X
中科院分区：
文献类型：
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作者：
Li L;Yang T;Redden R;He W;Zong X
鉴于化石能源资源的有限性和过量施肥对作物的环境风险，现在是时候重新评估食用豆类生物固氮（BNF）作为中国种植系统氮源的潜在作用了。采集了中国17个省、2个直辖市的150个土壤样品进行分析。绘制了土壤肥力分布图及其分布格局。pH值结果表明，土壤总体呈中性至弱碱性。土壤有机质（SOM）和碱解氮（AN）含量较低，速效磷（AP）和速效钾（AK）含量中等偏高。食用豆类作物（蚕豆、豌豆、小豆、绿豆和菜豆）生产区可明显划分为4个土壤肥力类型区。此外，土壤有机质、碱解氮、速效磷、速效钾缺乏、高酸、高碱的地区被列为今后土壤改良的重点地区。认为生物固氮具有替代无机氮肥的潜力。
Given the limited resources of fossil energy, and the environmental risks of excess fertilizer on crops, it is time to reappraise the potential role of food legume biological nitrogen fixation (BNF) as sources of nitrogen for cropping systems in China. 150 soil samples across 17 provinces and 2 municipalities of China were collected and analyzed. A distribution map of the soil fertilities and their patterns of distribution was constructed. The pH results indicated that soils were neutral to slightly alkaline overall. The soil organic matter (SOM) and the available nitrogen (AN) content were relatively low, while the available phosphorus (AP) and available potassium (AK) contents were from moderate to high. Production areas of food legumes (faba bean, pea, adzuki bean, mung bean and common bean) were clearly separated into 4 soil fertility type clusters. In addition, regions with SOM, AN, AP and AK deficiency, high acidity and high alkalinity were listed as target areas for further soil improvement. The potential was considered for biological nitrogen fixation to substitute for the application of mineral nitrogen fertiliser.