Yichun Area
- 网络伊春地区
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Characteristics and tectonic setting of late Indosinian I-type granite zone in the Yichun Area
伊春地区晚印支期I型花岗岩带特征及其构造背景
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But the poplar tree has grows quickly , is one of Yichun area fast-growing timber wood tree seeds .
而杨树具有生长快、是伊春地区速生用材树种之一。
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Application of the Surveying Rock Density in the Research Emplacement Mechanism of Granite Plutons in Yichun Area , Heilongjiang Province
岩石密度测量在黑龙江伊春地区花岗岩体就位机制研究中的应用
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The Qianjin magmatite in the Yichun area is located in the central part of the Yichun-Yanshou metallogenic belt which is rich in polymetallic mineral resources of Mo , Cu , Pb , Zn , Ag .
伊春前进地区地处伊春延寿成矿带中部,区内Mo、Cu、Pb、Zn、Ag等多金属矿产资源丰富,且成矿与岩浆活动关系密切。
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Through the studies on density features of granite body in Yichun area , the authors consider that the emplacement mechanism of late Ordovician granite are dominated by tectonic extension , and subordinated by balloon swelling , at last it takes place stoping .
通过对伊春地区花岗岩体的密度特征的研究,认为该区晚奥陶世花岗岩体的侵位以构造扩展机制为主,气球膨胀作用为辅,最后发生了顶蚀作用。
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The Relationship between Weather Factors and Seedling Production in Yichun Forest Area
伊春林区气象因子与育苗生产的关系
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Occurrence and Distribution Regularity of Rodent Damage in Yichun Forest Area
伊春林区主要森林鼠害发生与分布规律
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He relations between major weather factors and seedling production are analysed on the basis of data collected from weather stations in Yichun forest area in 32 years .
用伊春林区32年(1958&1990年)的气象资料,分析论证了主要气象因子与育苗生产的关系。
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The ecological environment in Yichun national forestry area has harmed to state-owned forest region and long-term sustainable development , and is becoming the main restrictive factors of regional economy and social development .
伊春国有林区生态环境已危及到国有林区长期的可持续发展,并成为区域经济、社会发展的主要限制性因素。
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Over the years , Yichun national forestry area have always provided wood for country overload , which made the original forest structure was seriously damaged and stable implement of ecological service function of forest was also affected , whose extensive mode of growth made the ecological environment vulnerable .
多年来伊春国有林区超负荷地为国家输送木材,严重破坏了原有的森林结构,影响森林生态服务功能的稳定发挥,粗放式增长方式致使生态环境呈现出脆弱性。
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By the end of 2006 , the reform had carried out throughout the country , so did the Yichun national forest area in Heilongjiang provinces , which breaks the operation and management system of state-run ownership and running manner in the state-owned forest areas more than 50 years .
在集体林权制度改革即将在全国全面推开之际,以黑龙江伊春国有林区为试点的林权制度改革也同时开展,打破了50多年来国有林区国有国营的经营管理体制。