采用盐度渐变和突变2种方法试验低盐度对平均体重3.7 mg、平均壳高（2.24±0.24） mm的泥东风螺稚螺生长与存活的影响。结果表明：盐度28时，稚螺的生长速度最快，盐度降到24时，对稚螺的影响并不明显，摄食基本正常，但活力略有降低；变态7 d的泥东风螺稚螺能够适应高于21的低盐环境，存活基本正常，有比较高的成活率，但对其摄食和生长有一定的影响；当盐度突变至18时，泥东风螺稚螺仍能存活，突变至15时，则不能存活；而盐度渐变至15时，稚螺仍可存活；盐度逐渐降低只可扩大泥东风螺稚螺的存活盐度范围，但其对最适生长盐度范围影响有限。

We applied two methods of acute and gradual salinity changes in our experiment to explore effects on the growth and survival of Babylonia lutosa juveniles. The average weight was 3.7mg and the average shell-height was (2.24 ± 0.24)mm. The results showed that the juveniles grew fastest in salinity 28. Abnormal juveniles of Babylonia lutosa could adapt to the low salinity environment which with higher survival rates than those in salinity 21.The feeding,growth and survival of Babylonia lutosa juveniles were normal under salinity 21 condition. When acute salinity became 18,Babylonia lutosa juveniles could still survive but suffer severe influence on feeding and growth. Those juveniles could not survive when acute salinity change under 15 but gradual salinity change could do with severe influence on feeding and growth. In conclusion,the survival range of Babylonia lutosa juveniles would be wider with gradual salinity change,but the adaptable growth range was limited.

2012年06月—2014年09月期间，收集野生泥东风螺（Babylonia lutosa ）5775粒，经培育成活5246粒，存活率90.8％。亲螺的繁殖期为6—9月，水温在26℃～30℃时为产卵高峰；卵囊呈梯形、马鞍状、透明，单个卵囊卵粒数量309～472粒，平均381粒。在日常饵料中补充金藻、角毛藻等高不饱和脂肪酸（High unsaturated fatty acid，HUFA）含量较高的单胞藻，可提高存活率。3年来浮游幼体的变态率逐年提高，并培育出壳高3.08～15.91 mm的泥东风螺苗1733.85×104粒，同时对泥东风螺从受精卵到变态为稚螺的整个发育过程进行显微观察，共分16期。

During 2012-2014 ,the research on the artificial breeding technique of Babylonia lutosa was con-ducted by collecting a number of 5 775 wild broodstock of Babylonia lutosa. After breeding,5 246 of Babylo-nia lutosa were survived,and the survival rate was 90.8%. The breeding season of broodstock was from June to September,and the peak period appeared when the water temperature was between 26℃ ~30℃.Oocyst was trapezoid or saddle shaped and transparent. There were 309~472 eggs in one Oocyst,381 by average. Adding Isochrysis zhanjiangensis,Chaetoceros muelleri and algae with high concentration of HUFA into diary as supplementary could improve the survival rate. More,the metamorphosis rate raised progressively in 3 years’ test. Finally,17.3 385 million of juveniles with the shell height of 3.08 mm to 15.91 mm were successfully bred. Meanwhile,the metamorphosis of the whole early developmental stages of Babylonia lutosa,which was divided into 16 stages,was observed under microsco

选取郑州市东风渠作为调查对象，通过实地调查，从生态要素、社会要素和景观要素等3方面对其滨水景观进行分析，提出东风渠滨水景观的优点与不足，将东风渠滨水景观按照景观节点分为25个景观段进行评价。以POE理论为前提通过AHP层次分析法和模糊数学理论进行分析，制定出一套针对东风渠滨水景观的评价体系，在加强景观节点的设计构思、提高创新性和形式美感、提高景观质量等方面对东风渠滨水景观建设提出建议。

In this study,Dongfeng Canal of Zhengzhou was investigated to analyze its waterfront landscape from ecological,social and landscape elements,and then proposed some advantages and disadvantages.After that, landscape of Dongfeng Canal were divided into 25 segments by the landscape nodes for evaluation.Base on the POE theory,AHP method and Fuzzy Mathematics,we work out an evaluation system for landscape of Dongfeng Ca-nal,and then proposed that,trengthen the design concept of the landscape nodes,improve the innovative,beauty in form and quality of waterfront landscape of Dongfeng Canal.

为探究南药组方对方斑东风螺病原性弧菌的抗菌作用,测定了组方对方斑东风螺内脏团内细菌总数、菌落构成、几种常见致病性弧菌细胞壁的通透性、菌悬液电导率的影响。试验结果显示,质量浓度为1.56mg/mL的南药组方能减少方斑东风螺内脏团内细菌总数及弧菌数;组方处理的细菌胞外碱性磷酸酶含量增多,菌悬液电导率明显增大。表明一定质量浓度的南药组方可减少方斑东风螺内脏团内细菌总数和弧菌数,破坏细菌细胞壁和细胞膜的完整性,导致细胞膜通透性增加。

The objective of the present study was to investigate the effect of southern Chinese herbal compounds on vibriosis in shellfish Babylonia areolata by examination of the total number and colony constitute of bacteria ,activity of alkaline phosphatase (AKP) ,and electrical conductivity in the shellfish exposed to southern Chinese herbal compounds .The results showed the total number of bacteria and the number of vibrios were found decrease at concentration of 1 .56 mg/mL of southern Chinese herbal compounds .Southern Chinese herbal compounds led to increase in the content of alkaline phosphatase and electrical conductivity . In conclusion , southern Chinese herbal compounds resulted in reduce in total number of bacteria and the number of vibrios due to rupture cell walls , causing an increase in cell membrane permeability and the release of intracellular contents .

报道云南西双版纳东风农场1998年试验示范种植的橡胶树新品种云研77-4近10年的观测资料,结果表明,云研77-4品种在抗寒、高产、生势、抗性等性状都优于对照品种GT1,充分表现出该品种的优良特性,适于在东风农场橡胶树宜林地推广种植。

Data from 10 years cultivation experiment conducted in 1998 has shown that tested rubber clone Yunnan 77-4 is su-perior to control cultivar GT1 in cold resistance, high yield, growth and stress resistance. Those quality properties adhere to this clone can be considered in rubber suitable planting area of Dongfeng Farm.