牧草地
- 与 牧草地 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Including the high tribes villages, the stones of Baku, killing at the scene and pasture.
包括亚高族部落的村庄,巴库的石头,杀戮现场和牧草地。
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Persistence of grazing mixed pasture has been a key issue in environment conservation and sustainable utilizing of resources in karst region. Under moderate grazing with Corriedale sheep, the productivity and botanical composition of Trifolium pratense mixtures were studied over a 20-year period in karst region of southwest China. Four mixtures consisted of Trifolium pr...
用考力代绵羊轮牧,在牧前和牧后草地现存量(干物质,DM,drymatter)分别为1800~2500(草层高15~18cm)和900~1200kg·hm-2(草层高3~5cm)的适度放牧利用条件下,对亚热带最常见的豆科牧草红三叶与禾本科牧草的两两混播草地的群落生产力和持久性开展长期研究。20年的结果表明:适度放牧利用下,群落地上总生物量长期稳定,各组合间差异不显著,总盖度20a后仍高达97%以上;适度放牧有利于牧草的生产力持久性,红三叶、鸭茅、多年生黑麦草和黑穗画眉草都在群落中长期存在;群落净产量和持久性是尺度依赖的,群落长期净生产力以红三叶+鸭茅的最高(DM产量353.3g·m-2·a-1)(P.05),对杂草侵入的抵抗力最强,而前10a红三叶+多年生黑麦草有很高的净生产力DM产量449.8g·m-2·a。。。
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Now one piggy is hiding in the Hayfield, one piggy is hiding in the Barn, and the littlest piggy went all the way to the Apple Tree.
一只小猪藏在种牧草地中,一只小猪藏在谷仓中,而猪小弟跑到了苹果树。
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And when they came to the meadow, she sat down and unbound her hair which was of pure gold.
当他们来到牧草地时,她坐在那儿的地埂上,解开她波浪一般卷曲的头发,她的头发都是纯银的。
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The results show that, firstly, Stellera chamaejasme L, which rely on their developed axial root system in the 10~40cm soil layer to occupy the competitive priority of volume, length, surface area and so on, in the case of their adaptive faculty to poor surroundings resulting from fruit picking, trampling and overgrazing as well as with the phenomenon of restrained growth among various plants, gradually become the dominant plant in the herbaceous community; secondly, this kind of degraded grassland has not displayed any general characteristic of degradation such as surface exposure, accumulative quantity of vegetation reduced, water loss, soil erosion and so on, therefor, it should be dealt with distinguishingly; thirdly, if"Stellera chamaejasme L Killer"and"Oxytropis ochrocephala Killer"invented by CAS are taken advantage of respectively in the bloom period of Stellera chamaejasme L and at the beginning of florescence of Oxytropis ochrocephala bunge by ultra-low volume spray of 1. 05L/hm〓 and 1. 35~165L/hm〓 dosage separately, the death rates of poisonous herbs may achieve above 95% and 92% correspondently; fourthly, this technology with the characteristics of high work efficiency, exclusive selectivity and convenient operation, is safe to non-target plants and other animals, and has no toxic or side-effect to environment; furthermore, an execution of"Stellera chamaejasme L Killer"spray and a two-year grazing prohibition can be effectively applied on degraded grasslands of"Weed and Poisonous plants Type".
结果表明:狼毒凭借发达的轴根系在10~40cm土层中形成的体积、长度、表面积等竞争优势,以及对采食、践踏、过度放牧所形成的不良环境的适应能力和异株克生现象的存在,逐步成为草群中的优势植物;毒杂草型退化草地没有表现出地表裸露、植物蓄积量减少、水土流失等一般性退化特征,对该类草地的治理应区别对待;应用中科院研制的'灭狼毒'和'灭棘豆'分别在狼毒盛花期和黄花棘豆初花期,以1.05L/hm〓、1.35~165L/hm〓的施用量超低容量喷雾,毒草的死亡率可达到95%、92%以上;该技术具有工效高、选择性专一、灭效高、操作简便,对非靶标植物和其它动物安全,对环境无毒副作用的特点;采用喷施'灭狼毒'+短期禁牧措施,可以有效治理毒杂草型退化草地。
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After a two-year observation, it was found that Pangola grass is not suited to grow in lateritic soil of the mountainous slop land, and considered to be the good forage crop under the present condition of Taiwan.
因此不但可以节省种植当年的除草需费而且可使原野地真正变成良好的牧草地。 4。盘固草为无性繁殖,种苗取生长期间45~60天而且较为粗壮的匍匐茎,行距50公分,株距20~30公分,每穴种1~2支苗。
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They also like to make their mounds in sunny areas, heavily infesting lawns and pastures.
它们也喜欢在阳光充沛的地方筑丘,大肆破坏草坪及牧草地。
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The brick house they live in is called Far Leys.
他家住的砖瓦房子被称做遥远的牧草地。
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The study with 9 local wethers was designed as three treatments including the control, the light- and heavy- grazing.
试验分为三个处理:对照、轻牧和重牧,并在此基础上选用9只当地羯山羊,较系统地研究了灌丛草地在不同山羊放牧率下的群落结构、生产力和营养价值动态以及在不同放牧强度下山羊对灌丛草地植物的喜食性变化。
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Construction of returing the gain polts to grass project area of Sangequanzi Shawan County completely change that we do not understand great role of grass land in dry land ecological system and an important position in national economy development for a long time,also influence on social thought of stressing agriculture to the neglect of animal husbandry,stressing animal husbandry to the neglect grass and neglect grass and low-priced grass,and throughly changes grassland construction and many other measures being not practicable,especially the step of grass land construction do not meet the needs of ecological development present situation.
文摘:沙湾县三个泉子退耕还草项目区的建设,彻底改变了长期以来由于草地在陆地生态系统中的巨大作用和在国民经济发展中的重要地位未被充分认识,加之受传统的重农轻牧,重牧轻草,轻草贱草等社会思想的影响,彻底改变了草地建设等许多措施没有落到实处,尤其是草地生态建设的步伐远远不能适应生态环境发展要求的现状。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。