收藏本站
收藏 | 手机打开
二维码
手机客户端打开本文

Biochar-based Soil Amendment as an Ecotechnology for Restoration of Salt Affected Soil:a Case Study in Shangqiu Henan,China

Muhammad Siddique Lashari  
【摘要】:Salinity is the most extending land degradation problem in the arid and semi arid regions of the world due to climate change and a severe environmental factor limiting the productivity of agriculture. Currently, half of the world irrigated land resources and approximately 20% of the agricultural land has been affected by salinity. Moreover, every year 1.5 million hectares of productive land severely affected by salinity and becomes unproductive. Accumulations of salts, particularly salts of sodium exert physiological threats to ecosystem, prevent normal metabolic functions, and hinder water absorption, nutrient uptake of the plant and soil biota. Salinity has drastic effects on plant, secondary effects of toxic salts causes injury of leaf cell, further reduces growth by specific ion toxicity. Salinity may also effects on the physical and chemical properties of soil, such a way increase soil compaction reduce the aeration. Thus, high levels of salts can dehydrate soil microbes and reduces soil microbial functions and nutrient transformation. Considering all inferior effects of soil salinity a study was designed with biochar based technology to reclaim salt-affected soil as a sustainable source for crop production and utilization of saline soil.This study is to address the potential of using biochar-based technology to ameliorate salt stressed soil with a number of experiments on soil and plant health changes. A two-year field experiment with soil amendment of biochar-poultry manure compost (BPC) and pyroligneous solution (PS) was conducted in a moderately salt stressed Entisol from Central China. The soil was amended with BPC at 12 t ha-1 following treatment with diluted PS solution at 0.15tha-1 1 week before winter wheat sowing. Samples of topsoil (0-20 cm) were collected for the determination of detailed soil physical and chemical properties, bulk and maize rhizosphere soil was collected for soil microbial community structure and soil enzymes activity. Plant samples were collected for major nutrient and sodium content in plant biomass while the yield of wheat and maize was measured when crop harvested. Plant samples for bio-molecules enzymes were collected at vegetative growth stage of maize crop.The detailed analysis of soil physical properties, leaching of salts from the root zone of crop, improvement in nutrient content in soil and plant biomass with the (BPC-PS) amendment and untreated salt-affected soil were determined through adopted laboratory techniques. Scanning electron microscopy (SEM) was used to examine the salt content in fresh and aged biochar particles collected from the salt-affected field. Soil microbial biomass and enzymes were determined by usual method. Microbes in bulk soil and maize rhizosphere (bacterial and fungal) community structure and abundances were assessed by culture-independent molecular techniques including polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) and quantitative real-time (qPCR), respectively. Moreover, important band retrieved from DGGE gel were analyzed using sequencing and phylogenetic analysis for further details of soil organisms.The main results are:1) The changes in soil salinity, fertility properties as well as crop yield were examined with comparison between the plots treated for one year and for two years. In the first cropping year of 2010-2011, a significant decrease under BPC-PS amendment was observed in soil salinity, soil pH and in soil bulk density while increase was seen in soil organic carbon and available phosphorous. The yield was increased over the control by several folds under BPC-PS treatment respectively for 1 year and for 2 years. Furthermore, the decrease in soil salinity, soil pH, and bulk density was even greater in the plots treated for 2 years than for one year though the yield under the treatment was not significantly different between the consecutive two years with a spring drought in 2012. These results demonstrated a strong effect of BPC-PS treatment on salinity reduction and crop productivity enhancement in the salt stressed soil, which could sustain for at least two years.2) Amendment of (BPC-PS) show effective role in the improvement of soil properties and maize growth. Significant decreases in soil pH, SAR and ESP as well as in ECs and total salts with the amendment of BPC-PS over the untreated salt-affected soil. The scanning electron microscope (SEM) observation indicates high content of Na in old biochar particles collected from two year old amended salt-stressed soil compared with one year old amended biochar particles. Moreover, the maximum increase in maize plant growth, leaf area index, plant density, root length and leaf relative water content with were found with the (BPC-PS) amendment and a significant decrease in the leaf electrolytes leakage. Furthermore, the nutrient content maize leaf sap nitrogen, phosphorous, potassium, K/Na ratio and total chlorophyll concentration was increased at vegetative growth stage while sodium and chloride concentration decreased with BPC-PS amendment. The amendment greatly improves the physiological disorder in maize leaf and decrease proline, lipid peroxidation (MDA), ascorbic acid, soluble sugar and amino acids in the dry matter of maize leaf. Thus, the amendment greatly improved root and shoot growth of maize plant, nutrient content in leaf sap, low content of Na+ and Cl-,maintain physiological and biochemical disorder of maize crop while alleviated the salt stress on maize plant.3) The nutrient content in aliquots of leaf, root and maize grain, uptake of Na, K/Na ratio and protein content in grain was determined and yield reported at harvest of maize crop. Results showed a significant improvement in maize dry matter and grain yield with the (BPC-PS) amendment over the non-amended salt-affected crop plot. However, the major nutrient content (NPK) in maize leaves, roots, grains and grain protein content were increased with the amendment of BPC-PS 1 and BPC-PS2 over the untreated salt-stressed maize plant. Moreover, the significant reduction was observed in Na+ content in plant dry matter and increases in K/Na ratio with the amendment. However, the fungal infected, poor quality grains were observed in the maize plant was grown in untreated salt-affected cropland.4) Results showed that total soil microbial biomass carbon and nitrogen were significantly increased both in bulk and rhizosphere samples, being greater under BPC-PS2 than under BPC-PS 1. However, the increase in bacteria (16S rRNA gene) abundance was seen higher under BPC-PS2 than under BPC-PS 1, but the reverse for fungi (18S rRNA gene), both in bulk and rhizosphere samples. Furthermore, two new single bands belonging respectively to Alphaproteobacteria and Deltaproteobacteria emerged in the amended soil. Coincidently, activities of urease, invertase and phosphatase in rhizosphere were increased by 11-27% with the BPC-PS amendment over the control. Thus, total microbial biomass; gene abundance and bacterial diversity as well as soil enzyme activity was greatly enhanced with the use of biochar-based ecotechnology in the salt-stressed soil. Therefore, soil microbiological health was greatly improved under the biochar-based treatment, which could be beneficial for plant growth and yield performance observed. Therefore, the finding of this study showed that biochar-based ecotechnology is effective source for the reclamation of salt-affected soil, crop health, nutrient improvement and soil biodiversity.


知网文化
【相似文献】
中国期刊全文数据库 前19条
1 ZHANG Wen-wen;WANG Chong;XUE Rui;WANG Li-jie;;Effects of salinity on the soil microbial community and soil fertility[J];Journal of Integrative Agriculture;2019年06期
2 GUO Yan;ZHOU Yin;ZHOU Lian-qing;LIU Ting;WANG Lai-gang;CHENG Yong-zheng;HE Jia;ZHENG Guo-qing;;Using proximal sensor data for soil salinity management and mapping[J];Journal of Integrative Agriculture;2019年02期
3 王仁君;唐学玺;;Allelopathic eff ects of macroalga Corallina pilulifera on the red-tide forming alga Heterosigma akashiwo under laboratory conditions[J];Chinese Journal of Oceanology and Limnology;2016年02期
4 Honghong Wu;Min Zhu;Lana Shabala;Meixue Zhou;Sergey Shabala;;K~+ retention in leaf mesophyll, an overlooked component of salinity tolerance mechanism:A case study for barley[J];Journal of Integrative Plant Biology;2015年02期
5 李昂;于非;刁新源;;Interannual salinity variability of the Northern Yellow Sea Cold Water Mass[J];Chinese Journal of Oceanology and Limnology;2015年03期
6 文莉娟;NAGABHATLA Nidhi;赵林;李照国;陈世强;;Impacts of salinity parameterizations on temperature simulation over and in a hypersaline lake[J];Chinese Journal of Oceanology and Limnology;2015年03期
7 YANG Tingting;CHEN Zhongbiao;HE Yijun;;A new method to retrieve salinity profiles from sea surface salinity observed by SMOS satellite[J];Acta Oceanologica Sinica;2015年09期
8 薛素燕;方建光;张继红;蒋增杰;毛玉泽;赵法箴;;Effects of temperature and salinity on the development of the amphipod crustacean Eogammarus sinensis[J];Chinese Journal of Oceanology and Limnology;2013年05期
9 ;Flocculation process of fine-grained sediments by the combined effect of salinity and humus in the Changjiang Estuary[J];Acta Oceanologica Sinica;2007年01期
10 杨盛昌,李云波,林鹏;Effect of soil salinity on cold tolerance of mangrove Kandelia candel[J];Chinese Journal of Oceanology and Limnology;2005年01期
11 ;Narrow and broad senses on salinity scale[J];Acta Oceanologica Sinica;2001年01期
12 ;Response of Arctic marine microalgae to changes of salinity[J];Acta Oceanologica Sinica;2001年01期
13 ;Study on halotolerance of phyllosoma larva of Chinese spiny lobster (Panulirus stimpsoni Holthuis)[J];Acta Oceanologica Sinica;2001年03期
14 黄衍镇,粘宝卿,许鹭芬;DETECTION OF PPM ACOUSTIC PULSE IN SHALLOW SEA CHANNELS[J];Chinese Journal of Oceanology and Limnology;1998年03期
15 ;Mechanism for controlling drought and salinity/waterlogging in Northwest Shandong Province[J];The Journal of Chinese Geography;1998年02期
16 陈镇东,王树伦;EFFECT OF ANTHROPOGENIC CO_2 ON THE pH AND THE SATURATION STATES OF CALCITE AND ARAGONITE OF SEAWATER[J];Chinese Journal of Oceanology and Limnology;1997年02期
17 ;ANALYSIS OF CIRCULATION AND SALT FLUX IN THE CHANGJIANG (YANGTZE) ESTUARY[J];China Ocean Engineering;1987年04期
18 翁学传 ,王丛敏;ON THE TAIWAN WARM CURRENT WATER[J];Chinese Journal of Oceanology and Limnology;1988年04期
19 ;Study on the upwelling along the east coast of Guangdong[J];Acta Oceanologica Sinica;1988年04期
中国重要会议论文全文数据库 前10条
1 Wei Lin;Yinzhao Wang;Bi Li;Yongxin Pan;;A biogeographic distribution of magnetotactic bacteria influenced by salinity[A];中国科学院地质与地球物理研究所2012年度(第12届)学术论文汇编——地球深部结构与过程研究室[C];2013年
2 ;Study on proteins and the resistance to high salinity in Antarctic ice microalgae Chlamydomonas sp.[A];中国海洋学会海洋生物工程2005年学术年会论文集[C];2005年
3 ;The clone induction of marine green alga Codium fragile response to seawater salinity and temperature in culture[A];中国藻类学会第八次会员代表大会暨第十六次学术讨论会论文摘要集[C];2011年
4 ;Members of miR-169 family are induced by high salinity and transient inhibit NF-YA transcriptional factors[A];华东六省一市生物化学与分子生物学会2008年学术交流会论文摘要汇编[C];2008年
5 Tan Longyan;Zhao Qi;Qiu Lili;Dai Shaojun;;Physiological and proteomic analysis of salinity tolerance in germinating seeds from Brassica napus[A];生态文明建设中的植物学:现在与未来——中国植物学会第十五届会员代表大会暨八十周年学术年会论文集——第3分会场:植物分子生物学与基因组学[C];2013年
6 Zhimin Wang;Guomin Li;Xue Li;Shuo Shan;Jiangyi Zhang;Shengyu Li;Jinglong Fan;;Characteristics of moisture and salinity of soil in Taklimakan Desert,China[A];中国科学院地质与地球物理研究所2012年度(第12届)学术论文汇编——工程地质与水资源研究室[C];2013年
7 ;Proteome analysis of kenaf seedlings under salt stress[A];遗传学进步促进粮食安全与人口健康高峰论坛论文集[C];2012年
8 ;Proteome analysis of kenaf seedlings under salt stress[A];2012年中国作物学会学术年会论文摘要集[C];2012年
9 Jie Gong;Kun Yu;Haihui Ye;Guizhong Wang;Shaojing Li;Chaoshu Zeng;;Evaluating effects of temperature, salinity, starvation and autotomy on molting success, molting interval and expression of ecdysone receptor in early juveniles of the mud crab, Scylla paramamosa in[A];福建省海洋学会2014年学术年会暨福建省科协第十四届学术年会分会场论文集[C];2014年
10 ;Phospholipase D and phosphatidic acid signalling in plant response to drought and salinity[A];第六届中国植物逆境生理学与分子生物学学术研讨会论文摘要汇编[C];2010年
中国博士学位论文全文数据库 前4条
1 Muhammad Siddique Lashari;[D];南京农业大学;2014年
2 Sachin Onkar Khairnar(萨辛);半滑舌鳎对盐度变化的生理生态响应机制[D];中国海洋大学;2013年
3 Sawant;[D];中国海洋大学;2003年
4 Mohammad Muhebbullah Ibne Hoque;玉米耐盐性的鉴定及QTL分析[D];中国农业科学院;2013年
中国硕士学位论文全文数据库 前1条
1 Stella(斯泰拉)Mabondo Yonah Shija;[D];东北师范大学;2013年
中国重要报纸全文数据库 前2条
1 何家宝;UCP600[N];国际商报;2007年
2 何家宝;UCP600[N];国际商报;2007年
 快捷付款方式  订购知网充值卡  订购热线  帮助中心
  • 400-819-9993
  • 010-62982499
  • 010-62783978