基于多源卫星遥感数据农业专题图件的制作简

结合现代卫星遥感数据的多样化特点,立足现代农业可持续发展的需求,通过生产实践研究现代农业专题用图制作的工艺方法.     

2009年锦州市生态质量监测与气象评价

利用锦州地区2009年5个气象观测站及锦州市生态与农业气象中心监测的资料和卫星遥感监测资料,依据中国气象局《生态质量气象评价规范（试行）》,选择湿润指数、植被覆盖指数、水体密度指数、土地退化指数、灾害指数,进行2009年锦州地区生态质量气象评价。结果表明,2009年全区各县（市）生态质量指标在30～55,生态质量等级为＂一般＂水平。     

黄条魳(Seriola aureovittata)染色体核型分析

以黄海北部沿海捕获的野生黄条(Seriola aureovittata)为实验材料,经过体内注射植物血球凝聚素(PHA)和秋水仙素,取头肾细胞,经空气干燥法制片,Giemsa染液染色后,观察黄条的染色体核型和特征.本研究分析了21条黄条的80个中期染色体核型,结果显示,黄条核型有48条染色体,2n=48占所观察分裂相的比例是81.25％;第1对染色体有次缢痕和随体.核型公式为2n=48=6sm+4st+38t,其染色体臂的数量为54,单倍体染色体总长度约为51.97 μm.黄条染色体核型比较独特,具有3对亚中部染色体和2对亚端部染色体;不同于以往报道的其他属鱼类的染色体核型特征.通过比较分析认为,黄条为进化上的高位类群中的特化类群.本研究为属鱼类的细胞遗传学研究提供了基础资料,并为黄条种质资源保护及未来人工养殖等奠定基础.     

基于GF-1 WFV影像的作物面积提取方法研究

黑龙江省是我国粮食生产大省,及时有效地获取黑龙江省的农作物种植面积对后续研究的开展具有重要意义。以黑龙江省五九七农场为例,利用2014年8月30日GF-1卫星16 m空间分辨率影像,通过计算不同特征波段,构建了多特征水稻、玉米种植区识别方法。首先计算影像归一化差分植被指数（NDVI）,并将原影像进行主成分变换,以此为基础建立包含多特征的数据集。然后利用不同地物类型之间在各特征波段的差异,基于CART算法构建决策树,分别提取研究区内的水稻和玉米。精度评价结果表明,分类的总体精度达到96.15%,Kappa系数为0.94。水稻的制图精度为98.41%,用户精度为97.64%;玉米的制图精度为95.38%,用户精度为97.89%。其中总体精度和Kappa系数较最大似然法分类结果分别提高了5.28%和0.08。所提研究方法可为其他地区农作物高分数据作物类型制图提供借鉴。     

北斗卫星定位系统在森林航空消防中的应用

为监督各航空护林站飞机的飞行安全,严把飞机放行关,及时掌握航空护林飞机飞行动态,基于我国近年来新组网的北斗卫星导航系统,构建了北斗卫星航空消防定位系统,实现了对森林航空消防作业飞机的实时监控和动态监管,达到了设计目标。     

2007年7月31日暴雨过程卫星云图和雷达对比分析

使用卫星红外云图和多普勒雷达资料,分析2007年7月31日～8月1日暴雨过程,其中抚顺、海城降水量超过100m,抚顺、丹东6h降水量都在50mm以上。通过强降水时段的分析发现,云团发展到成熟时期结构略有倾斜,降水大值中心灰度值及其与周围的梯度都较大。     

Restricted nutrient intake does not alter serum-mediated measures of implant response in cell culture

Background

During nutritional stress, reduced intake may reduce the efficacy of anabolic implants. This study was conducted to evaluate basic cellular responses to a growth promotant implant at two intake levels.

Methods

Sixteen crossbred steers (293 ± 19.3 kg) were used to evaluate the impact of anabolic implants in either an adequate or a restricted nutritional state. Steers were trained to individual Calan gates, and then randomly assigned to 1 of 4 treatments in a 2 × 2 factorial arrangement. Treatments consisted of: presence or absence of an anabolic growth implant (Revalor-XS, 200 mg TBA and 40 mg estradiol; IMPLANT or CONTROL) and a moderate energy, pelleted, starting cattle diet fed at either 2.0 × or 1.0 × maintenance energy (NE_M) requirements (HIGH or LOW). Serum (d 0, 14, and 28) was used for application to bovine muscle satellite cells. After treatment with the serum (20% of total media) from the trial cattle, the satellite cells were incubated for 72 h. Protein abundance of myosin heavy chain (MHC), phosphorylated extracellular signal-related kinase (phospho-ERK), and phosphorylated mammalian target of rapamycin (phospho-mTOR) were analyzed to determine the effects of implant, intake, and their interaction (applied via the serum).

Results

Intake had no effect on MHC (P = 0.85) but IMPLANT increased (P < 0.01) MHC abundance vs. CONTROL. Implant status, intake status, and the interaction had no effect on the abundance of phospho-ERK (P ≥ 0.23). Implanting increased phospho-mTOR (P < 0.01) but there was no effect (P ≥ 0.51) of intake or intake × implant.

Conclusions

The nearly complete lack of interaction between implant and nutritional status indicates that the signaling molecules measured herein respond to implants and nutritional status independently. Furthermore, results suggest that the muscle hypertrophic effects of anabolic implants may not be mediated by circulating IGF-1.     

NOAA-AVHRR多通道卫星资料在辽东半岛地区大雾监测中的应用

基于NOAA-AVHRR多通道资料,统计分析了白天和夜间可见光通道、中红外通道及热红外通道下晴空地表、雾区、云区等地物的通道光谱特征,总结了白天和夜间雾区识别的一些指标,利用统计分析方法结合一定的图形处理方法对雾区进行自动识别。最后对2014年4月8日一次大雾天气过程进行了试验,雾区识别的结果与地面观测结果比较一致,表明该方法对识别雾区有一定作用,但对夜间的轻雾不能进行有效识别。     

Restricted nutrient intake does not alter serum-mediated measures of implant response in cell culture

Background: During nutritional stress, reduced intake may reduce the efficacy of anabolic implants. This study was conducted to evaluate basic cellular responses to a growth promotant implant at two intake levels.Methods: Sixteen crossbred steers(293 ± 19.3 kg) were used to evaluate the impact of anabolic implants in either an adequate or a restricted nutritional state. Steers were trained to individual Calan gates, and then randomly assigned to 1 of 4 treatments in a 2 × 2 factorial arrangement. Treatments consisted of: presence or absence of an anabolic growth implant(Revalor-XS, 200 mg TBA and 40 mg estradiol; IMPLANT or CONTROL) and a moderate energy, pelleted, starting cattle diet fed at either 2.0 × or 1.0 × maintenance energy(NEM) requirements(HIGH or LOW). Serum(d 0, 14, and 28) was used for application to bovine muscle satellite cells. After treatment with the serum(20% of total media) from the trial cattle, the satellite cells were incubated for 72 h. Protein abundance of myosin heavy chain(MHC), phosphorylated extracellular signal-related kinase(phospho-ERK), and phosphorylated mammalian target of rapamycin(phospho-mTOR) were analyzed to determine the effects of implant, intake, and their interaction(applied via the serum).Results: Intake had no effect on MHC(P = 0.85) but IMPLANT increased(P 0.01) MHC abundance vs. CONTROL.Implant status, intake status, and the interaction had no effect on the abundance of phospho-ERK(P ≥ 0.23).Implanting increased phospho-mTOR(P 0.01) but there was no effect(P ≥ 0.51) of intake or intake × implant.Conclusions: The nearly complete lack of interaction between implant and nutritional status indicates that the signaling molecules measured herein respond to implants and nutritional status independently. Furthermore, results suggest that the muscle hypertrophic effects of anabolic implants may not be mediated by circulating IGF-1.     

贝加尔湖冷涡造成的局地暴雨天气过程分析

通过对2012年夏季一次局地暴雨天气过程发生时的主要天气形势、影响系统、各物理量场特征、卫星云图和雷达回波的演变等综合分析,得出贝加尔湖冷涡东移加深且移动缓慢是此次局地暴雨的关键;低空急流的存在,对降水量有增幅作用;由于大兴安岭地形阻挡造成迎风坡水汽辐合造成暴雨天气。