Characteristics of C∶P Ratio in High Fertility Soil in Erhai Lake Basin and Its Regulation Approach

LI Dandan; PENG Yi; FENG Gu; ZHANG Lin

doi:10.13870/j.cnki.stbcxb.2023.06.032

您当前的位置：

首页 >

文章列表页 >

Characteristics of C∶P Ratio in High Fertility Soil in Erhai Lake Basin and Its Regulation Approach

更新时间：2025-03-12

- Characteristics of C∶P Ratio in High Fertility Soil in Erhai Lake Basin and Its Regulation Approach
- Vol. 37, Issue 6, Pages: 255-261(2023)
- 作者机构：
  
  中国农业大学资源与环境学院, 植物-土壤相互作用教育部重点实验室, 国家农业绿色发展研究院,北京,100193
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2023.06.032
  CLC：
- Published：2023
- 稿件说明：
移动端阅览
LI Dandan, PENG Yi, FENG Gu, et al. Characteristics of C∶P Ratio in High Fertility Soil in Erhai Lake Basin and Its Regulation Approach[J]. 2023, 37(6): 255-261.
DOI：

LI Dandan, PENG Yi, FENG Gu, et al. Characteristics of C∶P Ratio in High Fertility Soil in Erhai Lake Basin and Its Regulation Approach[J]. 2023, 37(6): 255-261. DOI： 10.13870/j.cnki.stbcxb.2023.06.032.

摘要

为提高高肥力土壤磷素安全可持续利用

探究高肥力土壤碳磷比特征。选取洱海流域3种典型作物类型(粮食作物-玉米、地方特色高值经济作物-烤烟和高值高投入作物-蔬菜)作为研究对象

采集27个样点土壤

测定土壤碳磷含量并计算碳磷比。结果表明:(1)土壤有机碳(SOC)含量为31.91 g/kg

种植不同作物类型土壤SOC含量无显著差异;(2)土壤有效态无机磷(NaHCO3提取态无机磷

简称NaHCO3-Pi)含量为156.7 mg/kg

有效态有机磷(NaHCO3提取态有机磷

简称NaHCO3-Po)含量为63.43 mg/kg

种植不同作物类型的土壤有效态无机磷/有机磷含量(NaHCO3-Pi/NaHCO3-Po)无显著差异

均表现为蔬菜地＞烤烟地＞玉米地;(3)洱海流域农田土壤C/NaHCO3-Pi比为321.42

C/NaHCO3-Po比为1 138.25

土壤C/NaHCO3-Pi比显著低于全国和西南地区

种植不同作物类型土壤中

蔬菜地碳磷比(C/NaHCO3-Pi)显著低于玉米地。综上所述

洱海流域土壤碳磷含量较高

尤其磷含量高

造成土壤碳磷比显著降低

投入高的蔬菜地碳磷比显著低于玉米地

影响土壤微生物对磷的转化

同时也带来磷污染问题。因此

可通过调控碳磷比实现高肥力土壤中磷素的安全可持续利用

添加高碳磷比物料以提高土壤碳磷比

增加微生物对土壤磷的固持

将土壤磷储存在微生物磷库中

减少土壤磷素向水体的流失。

Abstract

In order to improve the safe and sustainable utilization of phosphorus in high-fertility soil

and explore the C∶P ratio of high-fertility soil. Soil of three typical crop types (grain crop-maize

local characteristic high value economic crop-tobacco and vegetables with high value and high nutrient input) from 27 sample sites in Erhai Lake Basin were selected to analyze the characteristics of soil carbon and phosphorus content and C∶P ratio. The results showed that: (1) The soil organic carbon (SOC) content was 31.91 g/kg

and there were no significant difference in SOC content among the different crop types. (2) The contents of available inorganic phosphorus (NaHCO3 extracted inorganic phosphorus

NaHCO3-Pi) and available organic phosphorus (NaHCO3 extracted organic phosphorus

NaHCO3-Po) were 156.7 mg/kg and 63.43 mg/kg

respectively. There were no significant difference in the contents of available inorganic and organic phosphorus (NaHCO3-Pi/NaHCO3-Po) among the different crop types

and the results were as follows: vegetable field ＞ tobacco field ＞ maiza field. (3) The C∶NaHCO3-Pi ratio and C∶NaHCO3-Po ratio of farmland soil in Erhai Lake Basin were 321.42 and 1138.25

respectively. The C∶NaHCO3-Pi ratio of farmland soil in Erhai Lake Basin was significantly lower than the China and the southwest China. The C∶NaHCO3-Pi ratio of vegetable field was significantly lower than that of maize field. Our results showed that the soil carbon and phosphorus content in Erhai Lake Basin was high

especially the high phosphorus content

leading to a significant decrease in soil C∶P ratio. The C∶P ratio of high input vegetable land was significantly lower than that of maize field

which not only impacted the transformation of phosphorus by soil microorganisms

but also brought about phosphorus pollution. Therefore

the safe and sustainable utilization of phosphorus in high fertility soil can be achieved by regulating the C∶P ratio. Adding materials with high C∶P ratio

such as crop straw

can increase the soil C∶P ratio

increase the immobilization of soil phosphorus by microbes

and store soil phosphorus in microbial phosphorus pool

which can reduce the loss of soil phosphorus to water.

关键词

Keywords

references

Stutter M I, Shand C A, George T S, et al. Recovering phosphorus from soil: A root solution?[J].Environmental Science and Technology,2012,46(4):1977-1978.

Wu J S, Huang M, Xiao H A, et al. Dynamics in microbial immobilization and transformations of phosphorus in highly weathered subtropical soil following organic amendments[J].Plant and Soil,2007,290(1):333-342.

Zhang L, Ding X D, Peng Y, et al. Closing the loop on phosphorus loss from intensive agricultural soil: A microbial immobilization solution?[J].Frontiers in Microbiology,2018,9:e104.

Lu C Q, Tian H Q. Global nitrogen and phosphorus fertilizer use for agriculture production in the past half century: Shifted hot spots and nutrient imbalance[J].Earth System Science Data,2017,9(1):181-192.

Wang R, Min J, Kronzucker H J, et al. N and P runoff losses in China's vegetable production systems: Loss characteristics, impact, and management practices[J].Science of the Total Environment,2019,663:971-979.

Zou T, Zhang X, Davidson E A. Global trends of cropland phosphorus use and sustainability challenges[J].Nature,2022,611(7934):81-87.

Kouno K, Wu J, Brookes P C. Turnover of biomass C and P in soil following incorporation of glucose or ryegrass[J].Soil Biology and Biochemistry,2002,34(5):617-622.

大理州"十四五"种植结构调整方案[S].大理白族自治州:大理白族自治州人民政府,2022.

鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社,2000.

刘娜,马旭东,慕君,等.不同类型有机物料的有机磷组成及生物有效性[J].植物营养与肥料学报,2021,27(3):440-449.

赵小蓉,周然,李贵桐,等.低磷石灰性土壤加入四种作物秸秆土壤微生物量磷的变化特征[J].华北农学报,2010,25(3):200-204.

郑铭洁,余红伟,陈志良,等.不同种类有机物料对新垦红壤有机碳提升及培肥效果的影响[J].中国农学通报,2022,38(36):101-111.

卢志红,魏宗强,杨敏琪,等.有机物料添加磷素释放动态与土壤磷组分响应[J].江西农业大学学报,2022,44(6):1582-1591.

任改弟,张苗,张文越,等.不同来源有机物料对菜用蚕豆生长和品质及根际土壤性状的影响[J].土壤,2022,54(4):740-749.

朱熠辉.强还原灭菌处理中不同有机物料添加对土壤团聚体和有机碳固持的影响[D].陕西杨凌:西北农林科技大学,2022.

陈露.有机物料长期施用对紫色土氮磷形态及微生物特性的影响[D].北京:中国农业科学院,2021.

郝近羽,陈源泉,代红翠,等.不同有机物料还田后砂质土壤有机碳组分结构特征[J].农业生物技术学报,2022,30(11):2201-2211.

孙立青.中国农田土壤碳氮磷化学计量特征的研究[D].北京:中国地质大学(北京),2018.

段杰珠,赵学娟,陈青,等.洱海流域蔬菜生产对面源污染和经济影响分析及控源对策[J].农业环境与发展,2009,26(2):77-79.

Chen W J, Zhan Y B, Zhang X J, et al. Influence of carbon-to-phosphorus ratios on phosphorus fractions transformation and bacterial community succession in phosphorus-enriched composting[J].Bioresource Technology,2022,362:e27786.

Spohn M, Chodak M. Microbial respiration per unit biomass increases with carbon-to-nutrient ratios in forest soils[J].Soil Biology and Biochemistry,2015,81:128-133.

Xu Z, Qu M S, Liu S L, et al. Carbon addition reduces labile soil phosphorus by increasing microbial biomass phosphorus in intensive agricultural systems[J].Soil Use and Management,2020,36(3):536-546.

Condron L M, Turner B L, Cade-Menun B J. Chemistry and dynamics of soil organic phosphorus[M]//Agronomy Monographs. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America,2015:87-121.

Fei C, Zhang S R, Li J F, et al. Substituting manure with rice husk to improve phosphorus adsorption and immobilization in high phosphorus accumulated greenhouse vegetable soil[J].Journal of Soil Science and Plant Nutrition,2022,22(2):1665-1675.

查庆南,申昊,李虹颖,等.高磷小麦秸秆提高砂姜黑土磷有效性并促进土壤磷素的转化[J].植物营养与肥料学报,2022,28(11):2001-2010.

Views

687

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Spatiotemporal Evolution of Trade-off and Synergy Relationship between Water Conservation and Soil Retention Functions in Erhai Lake Basin

Related Author

DENG Yuzhuang

CHEN Guokun

HUANG Yan

GUO Qiankun

LIN Honghong

FENG Junxin

Related Institution

Faculty of Land Resources Engineering， Kunming University of Science and Technology

Yunnan Key Laboratory of Quantitative Remote Sensing

Yunnan International Joint Laboratory for Integrated Sky-Ground Intelligent Monitoring of Mountain Hazards

China Institute of Water Resources and Hydropower Research

Institute of International Rivers and Eco-Security， Yunnan University

⁰