浙江省黄坛口水库饮用水取水口水质监测和分析

根据浙江省黄坛口水库饮用水取水口水质监测数据,对其水质情况进行了分析。结果表明,不同水深总氮含量升降次序基本一致,均在1、2月份达到最低值;不同水深粪大肠菌群与月份的变化关系无明显规律;不同深度的水质pH变化趋势基本一致,在9月份出现1个低点,在3月份达到最高点;不同水深的溶解氧含量成规律性变化,2月份、8月份分别出现1个拐点,其中8月份的拐点最大,含量也最低;不同深度的高锰酸盐指数变化趋势一致,均是在3月份最低,7月份出现1个小高点,9月份出现1个低点,均超过1.0 mg/L;不同水深的化学需氧量6月份最大,水下5 m稍高;生化需氧量基本在7月份最高,4月份最低,年初和年末数值也都较低;不同水深氨氮含量与月份的变化关系趋势基本一致,均在6月份达到最高。认为水下各分层水质稳定,均适宜作为取水点的取样深度。     

河南省河流普查成果分析与评价

主要是对河南省河流普查成果进行简要分析和评价,主要内容包括河流普查成果概述及山地河流特征分析.对河南省境内普查河流的河流长度和流域面积的关系、河流比降的区域分布进行了简要分析,并在河流长度、流域面积和河流数量等方面与以往的资料内容进行了对比分析.总之,该次河湖普查成果取得了很大成就,但仍然存在一些问题.     

培养料对平菇呼吸、生长及产量影响的研究

本文用三种配方培养料对四个平菇菌株进行呼吸强度、生长发育以及产量的测定,结果表明,菌株间差异不显著,配方间差异显著。配方Ⅲ的菌丝生长系数最大,其次是配方Ⅱ,配方Ⅰ最小,其产量配方Ⅲ>配方Ⅱ>配方Ⅰ,而呼吸强度刚相反,配方Ⅰ呼吸强度最大,配方Ⅲ最小。试验还表明,同一配方培养料,子实体呼吸强度又明显大于菌丝阶段。通过相关性分析,在一定范围内,呼吸强度小,则菌丝生长系数大,其产量高;否则反之。     

杉木树干材积分析

就杉木人工林立木树干材积的估测，材积按树高分布，材积的组成等有关问题进行了探讨。     

动物家谱分析系统的研制与开发

本文论述了动物家族系谱分析系统的组成及其功能，采用线条图的形式来描绘动物各代之间的血缘关系，通过对动物个体在家族中的特性作用的统计分析，将为动物养殖繁育提供重要的参考价值。     

TCP/IP协议脆弱性分析

TCP/IP协议是网络发展的一个基础，但是该协议确存在着致命的弱点，盲目的使用与该协议相关的服务或应用会给网络安全带来隐患，认识到TCP/IP协议的脆弱性进对我们加强网络管理和采用安全技术手段具有指导性作用。     

浅析江西阔叶树育种策略

对江西阔叶树研究的现状进行了阐述，分析了阔叶树种质资源改良的潜力，并在此基础上提出了阔叶树遗传改良的策略。     

An Hour’s Change:Psychological Analysis in Kate Chopin’s The Story of an Hour

This paper gives a brief introduction of Kate Chopin and his famous work The Story of an Hour [1].By analyzing the psychological change of the protagonist Mrs. Mallard and her reactions to her husband'...     

银川市金凤区农业发展调查分析

通过对银川市金凤区现阶段农业发展情况调查,分析了农业发展中存在的问题,针对性地提出合理化的对策,为金凤区农业发展及进一步调整产业结构提供参考。     

The green quality of urban spatial development: A multi-dimensional and multi-regional model using big data

Spatial development involves multi-dimensional and multi-regional objectives that might be competing, while few studies have examined these issues simultaneously. We proposed a comprehensive model to assess the green quality of urban spatial development (GQUSD), focusing on the synergy of multi-dimensional objectives and the balance of multi-regional interests. The metropolitan city of Hangzhou was taken as an example. We included land consumption, vegetation loss and infrastructure cost as the inputs and the density of production and living activities as the outputs of spatial development. We developed a categorical Data Envelope Analysis (DEA) using geospatial big data and stratified optimization to evaluate the synergy of inputs-outputs at the finer level of spatial grids.Resultsshow a “sandwich” structure of the GQUSD in Hangzhou when considering green space and vegetation loss, and characterize four spatial typologies of agglomerated development, limited development, blinded development and low-potential development through the Bivariate Local Indicator of Spatial Association (LISA) analysis. The “sandwich” structure is shaped by spatial processes of socio-economic agglomeration, industrial-driven sprawl, new-town development and suburbanization of high-end sectors. We also find green inequality in the spatial development of Hangzhou where vegetation costs were higher in manufactural industrial sites and low-income communities. We provide urban planning strategies to balance competing interests across regions, objectives, functions and communities for green growth and sustainable goals.