“暖冬”对农业生产及农业灾害的影响

本文分析了江苏省近几十年来、特别是８０年代以来冬季气温的变化特征，根据农业灾害发生的条件，讨论了“暖冬”对农业生产及农业灾害的影响，为农业生产部门和防灾抗灾部门决策提供科学依据．     

大空间室内火灾早期自动探测与定位研究

本文在深入研究早期火灾一般燃烧火焰在彩色影像上所呈现的光谱及运动特性基础上，首次提出利用彩色影像实时探测室内火灾的新方法，通过物方坐标与像方坐标的直接线性变换，实现了早期火灾的自动探测与空间定位，实验证明了该方法的有效性与稳健性，且具有巨大的应用前景。     

青龙县“四荒“治理开发的几点做法

青龙满族自治县被列为河北省桃林口水库上游重点治理区,境内大量“四荒”资源闲置浪费。该县立足县情,制定优惠政策,强化管理,因地制宜地开发这些资源,取得显著成效,其做法值得推广和借鉴。     

EFFECTS OF STATSGO AND SSURGO AS INPUTS ON SWAT MODEL'S SNOWMELT SIMULATION1

ABSTRACT: Soil data comprise a basic input of SWAT (Soil and Water Assessment Tool) for a watershed application. For watersheds where site specific soil data are unavailable, the two U.S. Department of Agriculture (USDA) soil databases, the State Soil Geographic (STATSGO) and Soil Survey Geographic (SSURGO) databases, may be the best alternatives. Although it has been noted that SWAT models using the STATSGO and SSURGO data may give different simulation results for water, sediment, and agricultural chemical yields, information is scarce on the effects of using these two databases in predicting streamflows that are predominantly generated from melting snow in spring. The objective of this study was to assess the effects of using STATSGO versus SSURGO as an input for the SWAT model's simulation of the streamflows in the upper 45 percent of the Elm River watershed in eastern North Dakota. Designating the model as SWAT‐STATSGO when the STATSGO data were used and SWAT‐SSURGO when the SSURGO data were used, SWAT‐STATSGO and SWAT‐SSURGO were separately calibrated and validated using the observed daily streamflows. The results indicated that SWAT‐SSURGO provided an overall better prediction of the discharges than SWAT‐STATSGO, although both did a good and comparable job of predicting the high streamflows. However, SWAT‐STATSGO predicted the low streamflows more accurately and had a slightly better performance during the validation period. In addition, the discrepancies between the discharges predicted by these two SWAT models tended to be larger at upstream locations than at those farther downstream within the study area.     

REVIEW ON GLOBAL NATURAL DISASTERS IN 2000

20 0 0ｗａｓａｒｅｌａｔｉｖｅｌｙｎｏｒｍａｌｙｅａｒｉｎｔｅｒｍｓｏｆｇｌｏｂａｌｄｉｓａｓｔｅｒｅｖｅｎｔｓ.Ｔｈｅｇｌｏｂａｌｌｏｓｓｆｒｏｍｎａｔｕｒａｌｄｉｓａｓｔｅｒｓｗａｓａｐｐｒｏｘｉｍａｔｅｌｙ 30ｂｉｌｌｉｏｎＵＳＤ ,ｗｈｅｒｅａｓｔｈａｔｉｎａｎｙｏｆｔｈｅｐｒｅｖｉｏｕｓｙｅａｒｓｈａｄｅｘｃｅｅｄｅｄ 1 0 0ｂｉｌｌｉｏｎＵＳＤ .Ｔｈｅｉｎｓｕｒａｎｃｅｌｏｓｓｉｎ 2 0 0 0ｗａｓｏｎｌｙ 8.3ｂｉｌｌｉｏｎＵＳＤ ,ｗｉｔｈ 92 0 0 ｐｅｒｓｏｎｓｋｉｌｌｅｄ .Ｔｈｅｒｅｗａｓｎ…     

浅谈安全生产标准化建设

阐述了大冶有色金属公司安全生产标准化建设内容，安全生产标准制定准则，建设体系以及建设效果，为现代企业安全生产管理积累了经验，可供借鉴。     

含氯苯和对邻硝基氯苯农药废水的混凝—氧化预处理

采用混凝沉淀 -芬顿试剂氧化对含氯苯和对邻硝基氯苯农药废水进行预处理 ,探讨了不同条件下农药废水的处理效果。结果表明 ,废水经混凝处理后可去除 46 .2 %的COD ,BOD5/COD值有一定程度的提高 ;废水经芬顿试剂氧化处理后可去除 5 0 .9%的COD ,BOD5/COD值可从 0 .0 4提高到 0 .1     

微波技术在环境保护领域的应用

综述了当前微波技术在环境保护领域的应用和研究状况，着重介绍了微波技术在废气处理，废水处理，固体废弃物处理，环境监测等方面的应用，讨论了应用存在的一些问题，并展望了微波技术在环境保护领域的应用前景。     

含镍废催化剂的回收利用

介绍了从含镍废催化剂中以硝酸镍形式加收镍的方法，镍回收率为70％，硝酸镍纯度为96．6％。该工艺简单，具有较好的经济效益和环境效益。     

高频超声波降解4-氯酚的反应机理及试验研究

探讨了高频超声波（1.7MHz)降解4-氯酚的反应过程和反应机理，研究了高频超声波降解4-氯酚的效果及4-氯酚的初始浓度，高级氧化方法（AOPs)等因素对降解效果的影响。试验结果表明，高频超声波降解4-氯酚为一级反应，超声波空化效应在降解过程中起主导作用。超声波与其他氧化方法联用可大大提高降解效率。具有良好的工业应用前景。