Based on the digitizing data of the land use map of the taiping st . area in wenling city between 1996 and 2001 , the characteristics of land use changes were analyzed 基于土地利用图的数字化数据，分析了1996 - 2001年温岭市太平街道土地利用的动态变化及其景观生态效应。
The second part analyses the current situation of expenditure structure of jilin province and mainly probes into economic effect , social effect and ecological effect in fiscal expenditure structure 第二部分，对吉林省财政支出结构现状的分析。主要探讨了吉林省财政支出总量与结构的经济效应、社会效应和生态效应。
It was indicated n split supply has an accumulated ecological effect on the rice rhizosphere microbes activities , so does water factor on the soil microbes of rice rhizosphere 这说明在分次施氮的施肥模式下，施氮对水稻根际土壤微生物的生态效应保持一定的持续作用，而水分条件对土壤微生物的生态效应也需要一定的时间才能起作用。
Accumulation of toxic chemicals in soil may affect growth , reproduction and survival of plants , animals and micro - organisms in the terrestrial eco - systems , and may even threaten ecosystems quite a distance away from the source of pollution 生态风险评估方法因此被用来预测土壤污染物引起的生态效应，并定量评估风险产生的大小及其概率。
This paper aims at introducing the progress in research on ecological impact of urban landscape structure through the best available and current literatures , foreign and domestic 本文考察了中外学者近年来就城市景观的生态效应所作的理论和实证研究，包括景观要素与格局及土地利用土地覆被对城市动植物群落、气候、水文、土壤等造成的影响。
In this paper , based on analysis on original ecological effect data from field investigation of green space in shanghai urban districts , the influence of three - dimensional ecological characters on green space ' s ecological functions was discussed 在对上海市区绿地生态效应实测数据分析的基础上，探讨了城市绿地三维生态特徵对绿地生态功能的影响。
Phase analysis of thallium is not only the research objective of thallium migration and ecosystem effect of thallium in nature environment , but also the guide to find hidden large scale deposit such as ti , au , hg , as and sb ore 摘要铊的相态分析既是研究自然环境中铊的迁移和生态效应的指标，也是指示寻找大型隐伏矿床如铊、金、汞、砷、锑等矿的手段。
Previous studies have focused mainly on the influence of am fungi on the physiology of the host plant , and there are few published reports on the influence of the host plant on the growth and metabolic activity of am fungi 前人有关丛枝菌根共生体的研究大多偏重于真菌对宿主植物的生态效应方面，而在宿主植物对菌根真菌生长与代谢活性的效应方面，现有的研究还不深入，许多认识仍停留在经验性或推测的水平上。
1 , 2 . 3 , 4 , 5 , 6 respectively . with the increase of lead level , the changing trend of spad and soluble sugar content and the activity of nitric acid reverting enzyme ( nr ) had appeared the same direction , which ascended first and then fell 2植物对pb污染的生理生态效应为了揭示pb污染对富集pb植物的生理代谢活动的影响，测定了叶片叶绿素含量、可溶性糖含量、硝酸还原酶的活性和脱落酸含量等生理指标。
It is , therefore , recommended that studies on environmental behaviors , ecological effects and health risks of pathogens in sewage sludge and sludge - affected environmental media be developed as soon as possible , and corresponding abating approaches and key technologies also be explored 建议在我国尽快开展污泥和受其影响环境介质中病原物的环境行为、生态效应与健康风险研究，并发展相关的削减对策和关键技术。
