农田土壤中磷素有效性及影响因素

应用生态学报

农田土壤中磷素有效性及影响因素

王永壮^1，2,陈欣^1**,史奕¹

（¹中国科学院沈阳应用生态研究所森林与土壤生态国家重点实验室，沈阳 110164； ²中国科学院大学，北京 100049）

出版日期:2013-01-18 发布日期:2013-01-18

Phosphorus availability in cropland soils of China and related affecting factors.

WANG Yong-zhuang^1,2, CHEN Xin¹, SHI Yi^1

（¹State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110164, China; ²University of Chinese Academy of Sciences, Beijing 100049, China）

Online:2013-01-18 Published:2013-01-18

摘要/Abstract

摘要： 土壤中磷的有效性直接决定着农田生产力. 基于分布于我国不同气候区长期定位施肥试验，总结了不同农田土壤的磷素含量、有效性及转化的影响因素.结果表明：目前我国不同类型的土壤中全磷含量在0.31～1.72 g·kg^-1，速效磷含量在0.1～228.8 mg·kg^-1.土壤母质、理化性质和施肥方式是影响农田土壤磷素有效性的主要因素，未来应注重有机肥和化肥的混合施用以提高农田土壤磷素有效性，并关注可能导致的环境影响.

Abstract: Soil phosphorus (P) availability directly determines cropland productivity. Based on the long-term fertilization experiments in different climatic zones of China, this paper summarized the P content, its availability, and the factors affecting the P transformation in China cropland soils. The total and available P contents in different types of China cropland soils were 0.31-1.72 g·kg^-1 and 0.1-228.8 mg·kg^-1, respectively. Soil parent material, soil physical and chemical prosperities, and fertilization practices were the main factors affecting the soil P availability. It was suggested that more attentions should be paid on the mixed application of organic manure and chemical fertilizers to improve the P availability of cropland soils and on the potential environmental impacts of this fertilization.

王永壮1，2,陈欣1**,史奕1. 农田土壤中磷素有效性及影响因素[J]. 应用生态学报.

WANG Yong-zhuang1,2, CHEN Xin1, SHI Yi1. Phosphorus availability in cropland soils of China and related affecting factors.[J]. Chinese Journal of Applied Ecology.