|
|||||
|
|
| 中国养分资源利用状况及调控途径 | |
| 引用本文： | 王激清,江荣风,张福锁,刘全清,马文奇.中国养分资源利用状况及调控途径[J].资源科学,2005,27(3):47-53. |
| 作者姓名： | 王激清 江荣风 张福锁 刘全清 马文奇 |
| 作者单位： | 1. 中国农业大学资源与环境学院,北京,100094 2. 河北省农林科学院农业资源环境研究所,石家庄,050051 3. 河北农业大学资源与环境学院,保定,071001 |
| 基金项目： | 引进国际先进农业科技计划(948计划) |
| 摘 要： | 提高养分资源利用效率不仅能增加农业的系统效益和农民的直接收益,而且能促进我国农业的可持续发展并改善人类生存的环境质量.土壤是最大的养分资源库,化肥、有机肥中的肥料养分资源和大气、水体中的环境养分资源又是土壤养分的重要补给源,农用矿产资源中含有作物需要的多种养分元素,是生产化肥的原料.本文分析了各类养分资源在我国的分布、利用现状及存在问题,提出了养分资源合理利用的调控途径,其一是充分了解养分资源的时空变异特征,有针对性地调节养分供应状况,以提高养分资源利用率;二是养分资源的宏观管理与微域调节相结合,以获得养分资源利用的最大效益;三是无机养分资源与有机养分资源配合施用,养分资源利用和保护生态环境相结合,以保持养分供需在时间和空间上的平衡. |
| 关 键 词： | 养分资源 利用 存在问题 调控 |
Utilization and Rational Control Measures of Nutrient Resources in China |
|
| WANG Ji-qing,JIANG Rong-feng,ZHANG Fu-suo and LIU Quan-qing,MA Wen-qi.Utilization and Rational Control Measures of Nutrient Resources in China[J].Resources Science,2005,27(3):47-53. | |
| Authors: | WANG Ji-qing JIANG Rong-feng ZHANG Fu-suo and LIU Quan-qing MA Wen-qi |
| Abstract: | Nutrient use efficiency not only influences the systematic benefit of agriculture and peasants' direct income, but also affects agricultural sustainable development and environmental quality in China. Nutrients in the soil, fertilizer and environment are major components of nutrient resources. Current nutrient resources distribution, utilization condition and existing problems in China were analyzed in this paper, at the same time separate appraising of nutrient resources from society, economy, agriculture, and environment was brought forward.The soil is the largest nutrient resources bank, there are many nutrient elements needed by crops in the soil, but distribution of nutrient resources is inhomogeneous, so it is necessary to select the rational land for use of nutrient resources in line with the local conditions, chemical fertilizers, organic fertilizer nutrient and atmosphere. Nutrient resources from water body are important source of the soil nutrient, the agricultural mineral resources contain many kinds of nutrient and element needed by the crops, which is raw materials producing nutrient resources for crops. Our country is in short of resource supply, we should not focus only on intensive use of various kinds of nutrient resources, but also pay attention to protect the environment and get high quality and safe agricultural products. Therefore, the regulation and control measures of nutrient resources should be carried on following the suggestions as below: Firstly, high efficient technology system should be established in order to make great efforts to improve nutrient use efficiency. Secondly, nutrient resources management should not be carried on in the entire country, but suitable control and regulation measures should be outspreaded in different ecosystems, and macroscopically management and area regulation of nutrient resources should be integrated. In the end, high nutrient use efficiency is a rational equilibrium of supply and demand, and the utilization of nutrient resources in combination with ecological environment protection is a prerequisite for nutrient resources utilization. |
| Keywords: | Nutrient resources Utilization Existing problem Control measures |
| 本文献已被 维普 万方数据 等数据库收录！ | |
| 点击此处可从《资源科学》浏览原始摘要信息 | |
| 点击此处可从《资源科学》下载免费的PDF全文 | |