Comparative studies on the physioecological traits of photosynthesis , transpiration and stomatal conductance in four congeneric species , mosla hangchowensis ( m . h ) , mosla scabra ( m . s mosla chimnsis ( me ) and mosla dianthera ( m . d ) were investigated under controlled soil water status in this paper 本研究通过对控制土壤水分条件下杭州石荠? ( moslahangchowensis ) 、石荠? ( moslascabra ) 、华荠? ( moslachinesis )和小鱼仙草( mosladianthera )四个同属近缘物种的光合、蒸腾和气孔等生理生态特性的研究，分析了它们对变化的环境产生的功能可塑性变化，解释了在进化过程中这些近缘物种从濒危到广布的差异。
Firstly , the environment harm of the waste rock is studied ; secondly , we research the physics and mechanics property of the waste rock of the dabagou tunnel and get the physics and mechanics property index of waste rock ; thirdly , after comminuting the waste rock and compounding concrete as coarse aggregate , we make the comparison between it and the songshan stone in the fuxin building market at present , it proves to possess extension application value ; fourthly , on the foundation of it , we utilize waste rock as coarse aggregate to compound high strength concrete , steel fiber high strength concrete , polymer cement concrete , asphalt concrete by uniform design and research their mechanics property index by experiment 首先阐述了排矸石对环境产生的危害，其次对大巴沟隧道排矸石的物理力学性质进行了试验研究，获得了排矸石的物理力学性能指标。将排矸石粉碎后，作为粗骨料配制成混凝土，与目前阜新建筑市场上所用的松山石子进行比较，证明其具有推广应用价值。在此基础上，利用均匀设计法，将排矸石作为粗骨料配制成高强混凝土，钢纤维高强混凝土，聚合物水泥混凝土，沥青混凝土，通过试验测定其力学指标，获得了各种排矸石混凝土的优化方程和最佳配合比。
The paper analyzed the soil pollution in the farmland affected by chemical fertilizer , which included increasing the quantity of heavy metal and poisonous elements , causing the accumulation of the nitrates in the soil , destroying the soil structure , promoting the soil acid , reducing the soil microorganisms and the movement of them 摘要分析了化肥对土壤环境产生的不良影响；增加土壤重金属与有毒元素；导致土壤硝酸盐积累；破坏土壤结构，促进土壤酸化：降低土壤微生物活动。
Chapter 3 : specifically concentrating on several types of migrant societies , this chapter investigates and analyzes current conditions and characteristics and formation mechanism , discovers some inevitability and inherent positive factors on one hand , and analyzes current outstanding problems and the impact it has on urban environment on the other hand 第3章：从微观层面深入几类流动人口社区进行调研，研究分析其现状特征、形成机制，一方面挖掘出这些社区形态的某些必然性和内在的积极因素，另一方面分析目前存在的问题和对城市环境产生的影响。
Therefore the paper recommend that the urban - rural ecotone is examined in the whole environment , concentrating on urban fringe area of different type should be gradually expanded under control , fitting the natural ecological values . based on the analysis , some ideas are brought forward about optimizing the spatial pattern of landscape in urban - rural ecotone of urumqi 最后,从整个地域单元层面上分析快速城市化对区域生态环境产生的影响,指出不合理的土地利用格局是区域生态问题产生症结所在,缺乏协调的人为控制常常使其处于无序发展状态。
At present , there are so many researches and practices about water resources sustainable utilization in home and abroad . these researches and practices are all reflecting the ideas of ecology - economy system . they consider water resources utilization is not only from economic aspect but also from aspect of possible effect on ecologic enviroment . lt should make human being harmonize with nature . during earring out water resources sustainable utilization , we should not only shift supply management to demand management and take measures to save water and improve the efficiency of water utilization , but also mobilize the enthusiasm of water usersjet them join in water resources management , that is to say , let them join in exploiting and utilization of water resources and discharging waste water 目前，国内外对水资源持续利用的研究和实践还是很多的。这些研究和实践里都渗透着生态经济系统的理念，即不仅从经济的角度考虑水资源的利用，而且更应从可能对生态环境产生的影响来考虑水资源的利用，使人与自然相协调。在实现水资源的持续利用中，不仅要实现从供给管理转向需求管理，采取各种方法节约用水，提高用水的效率，而且还应该充分调动水用户的积极性，使他们参与到对水的管理中，对水资源的开发、利用以及废污水的排放都进行全面的参与。
