土壤种子库
- 网络soil seed bank
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本研究对我国南方一年两熟制地区Bt油菜通过土壤种子库介导的基因流及其影响因素进行了初步探讨,提出了有效控制基因流的栽培技术措施。
In this studies , the gene flow mediated by soil seed bank and its influencing factors in the region of double cropping system in south China were analyzed , and some effective cultivation measures to control gene flow dispersion were brought forward .
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西双版纳热带森林土壤种子库与地上植被的关系
Relationship between soil seed bank and aboveground vegetation in tropical forest of
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Bt油菜土壤种子库介导基因流的研究
Studies on Bt Rape Gene Flow Mediated by Soil Seed Bank
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具有中度大小种子(0.1~10mg)的植物在成熟植被、总的土壤种子库、休眠种子库和幼苗中分布最多且最广;
The middle sized seeds ( 0.1 - 10mg ) were either abundant and broadly distributed in vegetation , total soil seed banks , seedling banks and persistent seed banks .
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4)放牧和围封草地土壤种子库密度与地上植被密度均存在显著的相关性(p0.001)。
Seed bank density strongly related to the standing vegetation density in both grazed and enclosed grasslands ( p0.001 ), indicating the standing vegetation density increased with the increase of seed bank density .
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土壤种子库物种多样性的变化表现为,随着演替的进行,优势度指数逐渐减小,而丰富度指数、均匀性指数和Shannon-Wiener多样性指数逐渐增大,恢复到32年时达到最大。
Along with the restoration stages , the dominance index decreased while the species richness index , evenness index and Shannon-Wiener diversity index increased gradually and come to the highest value in the plots after 32-year restoration .
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人工种植合欢(Leucaenaglauca)并屏除人和家养动物的影响使土壤种子库的种子密度增大,同时种子组成也由原来的耐旱型为主变为耐荫型为主;
Restoration with a Leucaena glauca plantation ( with over 6 years free of disturbance from humans or domestic animals ) increased the seed bank density and the dominant species changed from aridity-tolerant to shade-tolerant species .
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种子年后土壤种子库有活力种子密度自上而下呈现下降趋势,0~2cm种子数量最多,占0~10cm种子库种子总数的48.92%;
( 1.17 % ); ( 2 ) After the seed year , the viable seed density in soil seed bank decreased with the increasing of soil depth . The number of seed reached peak in 2 ~ 4 cm and got 48.92 % of total number ;
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以天山云杉种子年后第一年的土壤种子库为对象,采用萌发法对天山中部海拔1800~2210m天山云杉林下0~10cm深度的土壤种子库的种子储量及其垂直空间分布进行了研究。
Taking the soil seed bank of the first year after the seed age as the object , storage and vertical distribution of soil seed bank within the depth of 0 ~ 10 cm of Picea schrenkiana Fisch . et Mey . forest were studied by using greenhouse germination methods .
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干旱矿区废弃地土壤种子库特征研究
Germination Characteristics of Seed Banks in Mining Wasteland of Arid Environments
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采石场废弃地的早期植被与土壤种子库
Early natural vegetation and soil seed banks in an abandoned quarry
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沙漠化过程土壤种子库特征的研究
Study on the Characteristics of Soil Seed Banks in Desertification Process
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土壤种子库和地上植被之间具有较大相似性。
The soil seed bank and vegetation are similar in the study .
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高寒草地土壤种子库研究进展及展望
The advance and prospect of soil seed bank in the alpine grassland
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黄土高原草地土壤种子库与草地更新
Soil seed bank and meadow renewal in the grassland on Loess Plateau
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土壤种子库萌发实验在野外与室内的对比分析
Comparative Analysis on Germination of Soil Seed Bank in Field and Laboratory
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土壤种子库可以分为瞬时土壤种子库和持久土壤种子库。
Soil seed banks can be classified into transient and persistent ones .
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青海湖地区芨芨草草地土壤种子库的初步研究
Soil seed banks of Achnatherum splendens steppes in the Qinghai Lake area
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土壤种子库的分类系统和种子在土壤中的持久性
The classification systems of soil seed banks and seed persistence in soil
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土壤种子库的研究方法综述
A review on the research methods of soil seed bank
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放牧和围封条件下草地土壤种子库特征研究
Characteristics of Soil Seed Bank Between Grazing and Enclosed Grasslands
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种植人工柠条林对土壤种子库具有显著富集种子的作用。
Soil seed bank number have a significant increased in Caragana plantation .
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天山云杉林土壤种子库物种组成及其垂直空间分布
Species Composition and Vertical Distribution of Soil Seed Bank in Picea schrenkiana Forest
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土壤种子库在荒废地植被恢复工程中的应用
Application of soil seed bank in wasteland revegetation project
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天山云杉林土壤种子库研究
Study on Soil Seed Bank of Picea Schrenkiana Forest
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塔克拉玛干沙漠土壤种子库特征初探
Evaluation of Soil Seed Banks in the Taklimakan Desert
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土壤种子库对原有植被恢复的贡献
Potential contribution of the soil seed banks to the restoration of native plants
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围封沙化草地土壤种子库动态研究
The Study on the Dynamic of Soil Seed Banks in Enclosing Sandy Grassland
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差不嘎蒿灌丛下土壤种子库密度较灌丛外高10.9倍。
Soil seed density was 10.9 times higher under A.
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桂西南峰丛洼地退化植被土壤种子库的初步研究
Preliminary study on soil seed banks of degraded karst vegetation in Southwest Guangxi