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- The fast spreading poisonous-weeds, which caused grassland ecology unbalance, is one of the considerable bioecology problems and an important index of grassland degeneration. 毒草的迅速蔓延是造成草地生态失衡的重要生态学问题之一,是草地退化的一个重要指标。
- It is very serious in natural grassland degeneration and desertification in Maqu County,the causes include both natural and anthropogenic factors,but the later especially overgrazing is the main. 玛曲县天然草场退化、沙化现象十分严重,其原因有自然与人为因素,而人为因素特别是超载过牧是引起天然草场退化的主要原因。
- Nowadays, the phenomemon of livestock grazing producers seeking at the short-term profit leads to over-grazing, which is generally understand as the reason of grassland degeneration. 如今牧业生产者追求短期利益,在草原上过度放牧,使草场超载导致生态退化,已经成为了内蒙古草原退化普遍认同的原因。
- Grassland degeneration and restoration 草场退化与恢复
- Present Status, Causes and Control Countermeasures of Natural Grassland Degeneration in Maqu County 黄河上游玛曲县天然草场退化现状、成因及治理对策
- The climate on grassland is capricious. 草原的气候变化无常。
- The horses are eating grass on the grassland. 马在草地上吃草。
- Analysis on Grassland Degeneration in the West Jilin Province Based on Satellite RS 基于卫星遥感信息的吉林省西部草地退化分析
- Progress on Grassland Degenerated Succession 草地退化演替研究进展
- In South America, a treeless, grassland area. 南美大草原南美洲的一个无树的草原
- The state of being degraded; degeneration. 降低,堕落被降低的状态; 衰退
- Most of the nomads live in grassland and have no fixed home. 游牧部落的大多人都生活在草原上并且居无定所。
- South family store has a 'Degen'. 家乐南楼店有个‘德根’。
- I am the sun: So like carbon black Degen. 我很阳光:所以黑得跟炭似的。
- grassland degeneration 草地退化
- Ageing is accompanied by a slow degeneration of his mental faculties. 随着年龄增长,智力逐渐衰退。
- A flock of sheep are ranging over the grassland. 一群羊在草原上来回走动。
- The village houses are speckled on the grassland. 绿色的草原上点缀着几间村舍。
- Malignant sarcomatous degeneration is present. 肿瘤有肉瘤样恶变。