The global, digital and ecological features of knowledge economy have set a brand-new requirement to the management of land and resources with the five circles as the object.

知识经济的全球化、数字化、生态化特点，对以五大圈层为对象的国土资源管理提出了全新的要求。

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The paper also makes a preliminary study of the plant's biological and ecological features and thus paves the way for protection and utilization of this rare and near-extinctive plant.

同时对龙棕的生物学特性及生态学习性进行了初步研究，为保护和开发利用这一珍稀濒危植物资源提供科学依据。

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Biological and ecological features of Phloeaslnus aubel are introduced and monitor, forecast, and comprehensive control measures are presented on its development and damage characteristics.

介绍了柏肤小蠹的生物学和生态学特性，并针对其发生为害特点，提出了监测预报方法和综合治理措施。

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Western Ghats (India) : Older than the Himalaya mountains, the mountain chain of the Western Ghats represents geomorphic features of immense importance with unique biophysical and ecological processes.

UNESCO: MEDIA SERVICES