Results 71 to 80 of about 188 (86)

Reclamation technology on preventing heavy metal pollution from landfill of indigenous zinc smelting areas [PDF]

open access: yes, 2009
作者简介:敖子强(1975-),贵州德江人,男,博士生,主要从事环境生 态和污染生态学研究。福建厦门大学生命科学学院,361005。 Email: aoziqiang628@163.com 通信作者:严重玲(1959-),贵州贵阳人,男,教授,主要从事污染生 态学研究。福建厦门大学生命科学学院,361005。Email: ycl@xmu.edu.cn[中文文摘]:黔西北赫章县炼锌造成大量的废弃地,土地复垦成为当地面临的主要问题。为大面积的土地复垦提供基础数据,在平整的废渣堆上用0、25 和50 ...
严重玲   +6 more
core  

Duncan-Chang Constitutive Model of Vetiver Root and Soil Matrix at Different Growth Stages [PDF]

open access: yes
[Objective] To investigate the constitutive relationship governing the entire failure process of root-soil matrixs. [Methods] By employing the Duncan-Chang model and conducting triaxial tests, a stress-strain constitutive relationship model was developed
JI Jinnan, WU Ruibin, YANG Yuzhe
core   +1 more source

不同植被对土壤侵蚀及铜元素流失的影响

open access: yesShuitu Baochi Xuebao, 2008
通过野外天然降雨产流及人工模拟降雨试验,研究不同植被对坡面土壤侵蚀及土壤铜元素流失的影响及降雨过程中铜元素的流失规律。结果表明:(1)紫花苜蓿、绿豆、荒草3种植被覆盖小区的年径流量为5183.8,5 366.2,3 867.3 m~3/km~2,比裸地减少33%,30.8%和50.1%;侵蚀模数为379.18.482.3,15.78 t/km~2,比裸地减少34.7%,16.4%和97.2%;全年全铜流失量为12.9,25.5,0.46 kg/km~2,有效铜流失量为6.22,11.01,0.15 kg/
罗文林, 张兴昌, 尹勤瑞, 孟杰
doaj  

Study the Biological Function of Nitric Oxide Associated Protein 1(AtNOA1) in Arabidopsis thaliana [PDF]

open access: yes, 2009
一氧化氮(nitricoxide,NO)作为一种重要的信号分子不仅调节植物的生长发育,而且也参与植物对各种生物或非生物胁迫的反应。在动物体内,NO的主要来源是其体内的不同类型的一氧化氮合酶(NOS)催化精氨酸形成的,虽然已经证明NO在各种生理过程中起着重要的作用,但到目前为止还没有在植物体内检测到一个真正意义上的NOS。 AtNOS1是植物体内最初鉴定具有一氧化氮合酶活性的蛋白,但最近的研究表明,AtNOS1不能结合并催化Arginine,形成NO,也就是说,AtNOS1不是一个NOS ...
石武良
core  

Identification and expression analysis of the SBP gene family in Rhododendron henanense subsp. lingbaoense under abiotic stress [PDF]

open access: yes
[Objective] The SQUAMOSA promoter binding protein (SBP) plays an important role in plant development and abiotic stress. The aim of the study is to provide basis for understanding the function and regulation of abiotic stress response of the SBP gene ...
CHEN Yan   +4 more
core   +1 more source

土壤水分对植物根-土界面相互作用特性的影响

open access: yesShuitu Baochi Xuebao, 2018
为研究不同土壤水分下不同植物根系与土壤界面的摩阻特性,使用直剪仪对内蒙古中西部的5种典型乡土植物(柠条、沙棘、杨柴、紫花苜蓿和沙打旺)的根系在不同土壤含水率下进行根-土界面直剪摩擦试验。结果表明:当土壤含水率在4.5%~24.5%时,5种植物根-土界面摩擦系数均大于素土的土-土界面的值,且随着土壤含水率的增加,根-土界面和土-土界面摩擦系数均呈下降趋势,其中沙棘根-土界面的摩擦系数和黏聚力均大于其他4种植物的值,表明仅从根系与土壤间的相互作用特性来看,沙棘根系固土抗蚀的作用明显优于其他4种植物。根 ...
格日乐   +4 more
doaj  

Study on the natural attenuation mechanism of gibberellic acid in soil under different water content conditions [PDF]

open access: yes
As a micro-toxic pesticide with a wide application range and large dosage, the high solubility of gibberellic acid (GA3) causes its weak adsorption and strong migration in soil, accompanied by strong natural attenuation, and it is also affected by ...
Jingfang LI, Liang CHEN, Xiaolei HU
core   +1 more source

镰刀菌-淀粉-苜蓿对煤矿区污染土壤HMW-PAHs的修复

open access: yesShuitu Baochi Xuebao, 2017
以煤矿区高环芳烃(HMW-PAHs)污染农田土壤为研究对象,通过添加淀粉且接种菌株ZH-H2(Fusarium sp.)的苜蓿盆栽试验,研究苜蓿单一处理、ZHH2-苜蓿2因素处理和ZHH2-淀粉-苜蓿3因素处理对污染土壤5环、6环HMW-PAHs的修复效果。结果表明:苜蓿单一处理(M)对6种HMW-PAHs单体(BbF、BkF、BaP、InP、DbA和BghiP)的去除率为4.22%~45.01%;不同接菌剂量与苜蓿2因素处理对HMW-PAHs的降解作用有明显差异,其中H1+M、H2+M对6种HMW ...
张丽秀, 石
doaj  

Optimization of Extraction Method for Easily Extractable Glomalin-Related Soil Protein from Calcareous Soil [PDF]

open access: yes
Glomalin-related soil protein (GRSP) secreted by arbuscular mycorrhizal fungi is widely distributed worldwide, has stable properties and is not easily decomposed, which is an important component of soil organic matter.
Chun TU   +5 more
core   +1 more source

A comparative study on shared-use medicines in Tibetan and Chinese medicine. [PDF]

open access: yesJ Ethnobiol Ethnomed, 2019
Zhao MM, Wang KR, Gu R, Zhong SH.
europepmc   +1 more source

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