Evaluation of regional water resources carrying capacity based on binary index method and reduction index method

Based on the regional water resources carrying capacity(WRCC)evaluation principles and evaluation index system in the National Technical Outline of Water Resources Carrying Capacity Monitoring and Early Warning(hereafter referred to as the Technical Outline),this paper elaborates on the collection and sorting of the basic data of water resources conditions,water resources development and utilization status,social and economic development in basins,analysis and examination of integrity,consistency,normativeness,and rationality of the basic data,and the necessity of WRCC evaluation.This paper also describes the technique of evaluating the WRCC in prefecture-level cities and city-level administrative divisions in the District of the Taihu Lake Basin,which is composed of the Taihu Lake Basin and the Southeastern River Basin.The evaluation process combines the binary index evaluation method and reduction index evaluation method.The former,recommended by the Technical Outline,uses the total water use and the amount of exploited groundwater as evaluation indices,showing stronger operability,while the latter is developed by simplifying and optimizing the comprehensive index system with greater systematicness and completeness.The mutual validation and adjustment of the results of the above-mentioned two evaluation methods indicate that the WRCC of the District of the Taihu Lake Basin is overloaded in general because some prefecture-level cities and city-level administrative divisions in the Taihu Lake Basin and the Southeastern River Basin are in a severely overloaded state.In order to explain this conclusion,this paper analyzes the causes of WRCC overloading from the aspects of basin water environment,water resources development and utilization,water resources regulation and control ability,water resources utilization efficiency,and water resources management.

Role of rno-miR-124-3p in regulating MCT1 expression in rat brain after permanent focal cerebral ischemia

This study aimed to assess the role of microRNAs(miRNAs)in regulating monocarboxylate transporter-1(MCT1)expression in rat brain after permanent focal cerebral ischemia to identify a new target for early treatment of cerebral ischemia.Focal cerebral ischemia was induced by permanent middle cerebral artery occlusion(pMCAO)in rats.Morphology and protein expression levels of MCT1 were assessed by immunofluorescence and Western blotting.Using bioinformatics and double luciferase reporter assays,rno-miR-124-3p was selected as a direct target for rat MCT1.Expression of rno-miR-124-3p after pMCAO was detected.Then,rats were treated with rno-miR-124-3p agomir via lateral ventricle injection,and after 6 h or 24 h ischemia,rno-miR-124-3p expression and gene and protein expression of MCT-1 were detected by qRT-PCR and Western blotting.Brain infarction was identified by 2,3,5-triphenyltetrazolium chloride(TTC)staining.Results showed that pMCAO induced brain infarction and increased the expression of MCT1.The levels of rno-miR-124-3p after pMCAO were in contrast to those of MCT1 protein in ischemic region,while declined after 3,6 and 12 h of pMCAO in ischemic penumbra.After administration of rno-miR-124-3p agomir,MCT1 mRNA and protein levels were increased after 6 h of pMCAO,while decreased after 24 h of pMCAO.Meanwhile,rno-miR-124-3p levels increased after both times.TTC staining showed treatment with rno-miR-124-3p agomir reduced brain infarction.The role of rno-miR-124-3p in regulating MCT1 was as a positive regulator after 6 h of pMCAO,while a negative regulator after 24 h of pMCAO,however,both activities had protective effects against cerebral ischemia.