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- artificial grassland ecosystem 人工草地生态系统
- Diagnosis of degradation degree of grassland ecosystem is the basis and the precondition of ecological restoration. 摘要草地退化程度诊断是退化草地生态系统恢复和重建的前提和基础。
- At the same time, the future focus direction of the study on diagnosis of degradation degree of grassland ecosystem was discussed. 同时,提出草地退化程度诊断存在的问题及今后研究的重点发展方向。
- The below-ground biomass Of artificial grassland in 0-30cm depth got the lowest value in Jly, the highest value in Agu, then accumulated in Sept. 人工草地0-30cm土层地下生物量的变化规律是,7月降到最低,8月略有升高,9月开始累积。
- Using closed chamber technique and gas chromatography, in-site measurements of N2O, CH4 and CO2 greenhouse gase fluxes from grassland ecosystem were systematically conducted. 利用静态箱法采样,配以气相色谱仪法分析对草地N_2O、CH_4和CO_2温室气体通量进行了较系统的现场测量,同时对箱体内外温度进行同步观测。
- Composition of service value of grassland(rangeland) ecosystem in China, total service value of grassland ecosystem and service value of grassland were reviewed in the paper. 连续综述了中国草原/草地生态系统服务价值的构成,草地生态系统服务的总价值,各类型草地的生态系统服务的价值。
- Using closed chamber technique and gas chromatography, in-site measurements of N2O,CH4 and CO2 greenhouse gase fluxes from grassland ecosystem were systematically conducted. 利用静态箱法采样,配以气相色谱仪法分析对草地N2O、CH4和CO2温室气体通量进行了较系统的现场测量,同时对箱体内外温度进行同步观测。
- Autonomous regions and municipalities in other professional team in training on artificial grassland, and we can only land at the training ground, the conditions very difficult. 其他省区市的专业队在人工草场上训练,而我们只能在土场上训练,条件十分艰苦。”
- The cropland ecosystem, especially grassland ecosystem possessed important effect of regulation and domination in the ecology environment in the middle part of Tibet. 西藏中部农田,特别是兼具草地与林地两大功能的草地生态系统对区域生态环境具有重要的调节和控制作用。
- The reasons of fertility on the grassland ecosystems decreased were that the nutrients transferred from soil to plants, and no nutrients input on the artificial pasture have ... 草地土壤生态系统营养物质移出是草地土壤肥力退化的根本原因,无营养物质投入的人工草地更加剧了营养物质的迁出及土壤肥力的退化。
- In this paper, the influence of building ways and light grazing on the artificial grassland yield and grass stability were investigated with viewpoint of ecology in the hill area of Middle Guizhou. 结果表明,黔中丘陵地区因山地高度不同,使各地段土壤肥力、水分状况产生差异,将影响人工草地成坪时间、草地产量和稳定性;
- The growth and distribution of legume grass directly affect the development of grassland animal, recovery of damaged grassland and evaluation and management of healthy grassland ecosystem. 豆科牧草的生长及分布状况直接影响草地动物的生长,受损草地的恢复,健康草地生态系统的评价和管理等因素。
- The degraded grassland has lost it's pasturing value and the physical base restored naturally in short period, so replanting artificial grassland is a effective way to restore the degraded grassland. 从群落结构和已有的研究结果看,黄河源区所有类型的“黑土滩”草地都完全失去了牧用价值,短期内自然恢复的物质基础也已丧失,该类草地的恢复治理必须通过人工植被的重建来实现。
- However,because of the frangibility of grassland ecosystem,the development of grassland tourism is also fragile,the development of grassland tourism needs strict programming and management. 但是,由于草原生态系统的脆弱性,决定了草原旅游发展存在脆弱性,因此,在开发中需要更加严格的科学规划和管理。
- Grassland degradation was described as a process of retrogressive succession of grassland ecosystem resulted from human activities (over grazing, reclaim) and unfavorable natural conditions. 摘要草地退化是过度放牧、开垦土地等人为活动及不利自然因素影响下草地生态系统逆行演替的一种过程。
- Pastoral areas have given up farming and restored animal husbandry when artificial grasslands have been constructed to prevent them from becoming deserts. 在广大牧区采取退耕还牧,建设人工草场,防治沙漠化。
- Artificial grassland communities 人工草地
- grassland ecosystem replacement theory 草地生态置换理论
- Artificial grassland in "Back soil land" “黑土滩”人工草地
- Artificial grassland of tall fescue 苇状羊茅草地