| 操一芸,宋明丹,塔林葛娃,王慧,王小梅,周子哲,陈尧,付娇娇,李月梅.青海省设施农田土壤养分特征及综合评价[J].农业环境科学学报,2026,45(1):148-155. |
| 青海省设施农田土壤养分特征及综合评价 |
| Characteristics and comprehensive evaluation of soil nutrients in facility farmland in Qinghai Province |
| 投稿时间:2025-07-11 |
| DOI:10.11654/jaes.2025-0656 |
| 中文关键词: 设施农田 地统计学 土壤养分综合评价 GIS |
| 英文关键词: facility farmland geostatistics comprehensive evaluation of soil nutrients GIS |
| 基金项目:第二次青藏高原综合科学考察研究项目(2019QZKK0303) |
| 作者 | 单位 | E-mail | | 操一芸 | 青海大学农林科学院, 西宁 810016 | | | 宋明丹 | 青海大学农林科学院, 西宁 810016 农业农村部西宁野外综合科学观测研究站, 西宁 810016 | | | 塔林葛娃 | 青海大学农林科学院, 西宁 810016 农业农村部西宁野外综合科学观测研究站, 西宁 810016 | | | 王慧 | 青海大学农林科学院, 西宁 810016 | | | 王小梅 | 青海大学农林科学院, 西宁 810016 | | | 周子哲 | 青海大学农林科学院, 西宁 810016 | | | 陈尧 | 青海大学农林科学院, 西宁 810016 | | | 付娇娇 | 青海大学农林科学院, 西宁 810016 | | | 李月梅 | 青海大学农林科学院, 西宁 810016 农业农村部西宁野外综合科学观测研究站, 西宁 810016 | yuemeili2002@hotmail.com |
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| 中文摘要: |
| 为探明青海省设施农田土壤养分状况及其空间分布特征,把握设施农田土壤养分变化的驱动因素,本研究基于青海省设施农田集中分布区的733个表层土壤(0~20 cm)样本,结合统计学与空间分析,揭示县域土壤养分空间异质性规律,评估土壤养分综合状况并解析其驱动因素。结果表明:研究区土壤pH较高,有机质和全氮含量较低,全磷、全钾、碱解氮、速效磷和速效钾含量高。总体上,研究区养分失衡现象较为严重,尤其是土壤全磷含量过高;土壤养分综合得分整体呈现东北部高、西南部低的趋势,与年度国民生产总值呈极显著正相关关系;空间分析结果揭示出各土壤养分指标呈现显著空间分异与集聚特征,有机质、全氮、碱解氮低值区集聚于尖扎与贵德,高值区集中在乐都、西宁及大通,pH空间特征与之呈反向分布。研究表明,青海省设施农田土壤养分状况具有明显的空间分布特征,受环境因素和人为管理的双重影响明显,可利用区域养分特征制定详细的土壤管理策略。 |
| 英文摘要: |
| This study aimed to examine the soil nutrient status, spatial distribution characteristics, and driving factors of changes in facility farmland in Qinghai Province, providing scientific support for optimizing plateau facility farmland management. Using 733 surface soil samples(0-20 cm)from concentrated facility farmland areas, combined with statistical and spatial analysis, the research explored countyscale soil nutrient heterogeneity, comprehensive nutrient status, and their driving factors. Results indicated high soil pH, low organic matter and total nitrogen, but elevated levels of total phosphorus, total potassium, alkali-hydrolyzable nitrogen, available phosphorus, and available potassium, with significant nutrient imbalances particularly excessive total phosphorus. The comprehensive nutrient score showed a northeast-high and southwest-low pattern, strongly correlated with annual GDP. Spatial analysis revealed distinct aggregation:low values of organic matter, total nitrogen, and alkali-hydrolyzable nitrogen concentrated in Jianzha and Guide, while high values occurred in Ledu, Xining, and Datong, with pH showing an opposite distribution. The findings demonstrate that Qinghai's facility farmland soil nutrients exhibit significant spatial patterns influenced by both environmental factors and human management, providing a basis for developing region-specific soil management strategies. |
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