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营养生态
相关语句
  nutrition ecology
     Nutrition ecology of aquaculture animals
     水产养殖动物的营养生态
短句来源
     Effect of rice-duck mutualism on nutrition ecology of paddy field and rice quality.
     稻鸭共作对稻田营养生态及稻米品质的影响
短句来源
     Rhizoshere nutrition ecology becomes the issue of the day in recent years.
     植物根际营养生态是近年来的研究热点。
短句来源
  ecological condition of nutrients
     Effects on the mycelia growth and spore-forming of Ascosphaera apis under ecological condition of nutrients.
     营养生态条件对蜜蜂球囊菌生长及产孢的影响
短句来源
  “营养生态”译为未确定词的双语例句
     Studies on Grazing Behaviour of Sheep and Its Nutritional Ecology
     滩羊放牧行为及营养生态的研究
短句来源
     STUDIES ON NUTRITIONAL ECOLOGY AND THE EFFECT OF MANURING IN RICE AND WHEAT
     稻麦营养生态与施肥效应研究
短句来源
     Influence of Nutritional Ecological Factor on Rice Earing Stage and Application in Hybrid Rice Seed Production
     水稻的营养生态特性与花期调节关系的研究
短句来源
     EFFECTS OF POTASSIUM FERTILIZER ON WINTER WHEAT ROOT NUTRIMENTAL ECOLOGY
     钾肥对冬小麦根系营养生态的影响
短句来源
     At suitable range of nutrition, Hydrodictyon reticulatum can obtain dominance of resource competition atinitial stages, because it has more capability in absortion and utilization of resource than that of Microalga, which reduces the resource utilization of Microalga and restrains overgrowth of Microalga in a degree.
     而它们各自的营养生态幅及其生态幅之间重叠的程度又受多种因素的影响。 在适宜的营养盐浓度范围内,由于供试的水网藻对营养物质的吸收利用能力大于微藻对营养物质的吸收利用能力:因此,水网藻能在富营养化的初期阶段的资源竞争中占据优势,并尽可能减少微藻对资源的利用量,这可在一定程度上抑制微藻的过度生长。
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  相似匹配句对
     Nutrition ecology of aquaculture animals
     水产养殖动物的营养生态
短句来源
     ECOLOGY AND NUTRITIVE VALUE OF Tuber sinense
     中国块菌的生态营养价值
短句来源
     the nutritional function;
     营养作用 ;
短句来源
     Environmental Nutrition
     环境营养
短句来源
     Eco Miyun
     生态密云
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This paper is the fourth to be published in a series of studies on the stored product insect community ecology. The niche breadth of some major stored product insects and the niche overlap between them were measured with the data investigated from seven counties of Sichuan in 1983—1984. The niche breadth of three-dimensions (trophic, temporal and spatial) of Sitophilus zeamais, Tribolium confusum, Sitotroga cerealella, Oryzaephilus surinamensis. Tyrophagus putreseentiae and Lariophagus distinguendus was firstly...

This paper is the fourth to be published in a series of studies on the stored product insect community ecology. The niche breadth of some major stored product insects and the niche overlap between them were measured with the data investigated from seven counties of Sichuan in 1983—1984. The niche breadth of three-dimensions (trophic, temporal and spatial) of Sitophilus zeamais, Tribolium confusum, Sitotroga cerealella, Oryzaephilus surinamensis. Tyrophagus putreseentiae and Lariophagus distinguendus was firstly measured based on the niche breadth model given by C. C. David (1970): B_i=-sum from j=1 to R [N_(ij)/N_i Log_2(N_(ij)/N_i)]Log_2 R The results indicated that Sitophilus zeamais, Tribolium confusum, Sitotroga cerealella, Tyrophagus putrescentiae are the stored product insects(mites) which do damage to stored grain for a long period and attack on many stored commodities, they distribute in a wide area. Sitophilus zeamais is the most important one, the efficiency of natural enimy appears weakness. The three-dimensions niche overlap among Sitophilus zeamais, Tribolium confusum, Sitotroga cerealella, Oryzaephilus surinamensis, Tyrophagus putrescentiae and their enimies were measured based on the model given by Pianka (1973): O_(ik)=(sum from j=1 to S P_(ij)P_(kj))/(sum from j=1 to S P_(ij)~2 sum from j=1 to S P_(kj)~2)~(1/2) The results indicated that the trophic niche overlap between Sitophilus zeamais and Oryzaephilus surinamensis, Sitophilus zeamais and Tyrophagus putrescentiae, Oryzaephilus surinamensis and Tyrophagus putrescentiae are dominant, but that between Sitophilus zeamais and its senimy is less in temporal niche and larger in spatial niche.

本文是仓虫群落生态的初步研究之四,根据1983~1984两年从四川七市(县)进行定时定点系统调查和普查的资料,对仓虫群落中主要仓虫的生态位宽度和重叠进行了测定。首先,用C.C.David(1970)提出的生态位宽度模型:B_i=-sum from j=1 to R[N_(ij)/N_iLog_2(N_(ij)/N_i)]Log_2R测定了玉米象等主要仓虫的三维生态位(营养、时间和空间)宽度,其结果表明:玉米象、杂拟谷盗、麦蛾和腐食酪螨是为害时间长,分布区域广,为害储粮品种多的仓虫或仓螨,尤其是玉米象,而天敌对它们的抑制力则很弱。其次,用Pianka(1973)提出的生态位重叠模型:O_(ik)=sum from j=1 to SP_(ij)P_(kj)/(sum from j=1 to S)P_(ij)~2sum from j=1 to S_(kj)~2)~(1/2)测定了玉米象等主要仓虫的三维生态位重叠,其结果表明:玉米象和锯谷盗、玉米象和腐食酪螨、锯谷盗和腐食酪螨在营养生态位上的重叠程度较大;而玉米象和天敌在时问生态位上重叠程度最小,在空间生态位上重叠最大。

The investigation of interspecific relationship between the Great Tit Parus major and Willow Tit Parus montanus was carried out at the Qilian Mountain, from April to Juny of 1984, from May to June of 1985 and at the Xinglong Mountain from March to May of 1986 in Province Gansu, The, paper deals with the interspecific relationship between the Great Tit and Willow Tit in the selection of habitat, foraging niches and the analysis of food. In the overlap areas of geographic distribution, overlap value of niche between...

The investigation of interspecific relationship between the Great Tit Parus major and Willow Tit Parus montanus was carried out at the Qilian Mountain, from April to Juny of 1984, from May to June of 1985 and at the Xinglong Mountain from March to May of 1986 in Province Gansu, The, paper deals with the interspecific relationship between the Great Tit and Willow Tit in the selection of habitat, foraging niches and the analysis of food. In the overlap areas of geographic distribution, overlap value of niche between the Great Tit and the Willow Tit is lower in the altitude of habitat. The Great Tit habits at an altitude of below 2,370m, and prefering chiefly to aspen-birch community and artificial old-age popular community, but the Willow Tit habits at an altitude of over 2,300m, prefering more greatly to the mixed community and mountain aspen-oak community. There are certain overlap in their habitats, but the overlap value is lower. In the o,overlap among 4 dimensions of foraging niches between two species of tit, there is lower overlap value of niche is the dimensions selecting the kinds of trees, but the overlap value of niches is all greater in the others. Between two species of tit there is certain overlaps in the trophic niche, and overlap value of size of food is more great. In the course of evolution and development, through ecological separation between two species does not take place.

在地理分布重叠地区的大山雀Parus major和褐头山雀Parus montanus栖息地海拔高度不同。大山雀栖于海拔2,370米以下,集中于次生杨桦林和老年人工杨树林;褐头山雀栖于海拔2,300米以上,集中于混交林和山杨栎林。它们的栖息地有一定重叠,但重叠值较低。重叠地带觅食生态位的四维中,树种选择一维有所不同,其余三维生态位重叠值均较大。两个种营养生态位有一定重叠,食物大小的重叠值更大。在进化发展过程中,两种山雀间完全的生态分离没有发生。

This paper discussed the problem of earing stage control in hybrid rice seed production and the relationship between cultivation practice and earing stage.The result shows nutrition environment has regular influence on earing stage. and rice is sensitive to nutritional factor daring vegetative growth the same as it is to thermal factor. This phenomenon is important to calculate earing stage and resolve the preceding problem.

本文讨论了杂交稻制种花期调节方法,栽培措施与水稻出穗期的关系。阐明了营养生态的变化可以改变水稻的营养生长速度进而改变出穗期,水稻具有“感营养”生态特性,它对完善水稻的生育理论,解释花期调节所面临的问题,形成新的花期调节技术和高产栽培措施都有重要意义。

 
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