甘肃金昌市矿产资源综合开发研究

金昌是我国著名的“镍都”。本文从分析金昌矿产资源综合开发的内外部环境入手,探讨了矿产资源空间组合与分布的富、大、贵、深、碎特点,矿产资源综合开发现状及存在问题,提出了矿产资源综合开发利用对策。     

四川省宗祠旅游资源分析及其开发利用研究

作为中国传统社会遗留下来的特殊人文景观,宗祠是当今旅游业中的重要支撑资源。四川省宗祠旅游资源类型丰富,拥有以文庙、三国蜀汉文臣武将专祠、文化名人专祠、祭祀同族祖先的祠堂等为代表的资源体系。四川省宗祠旅游资源具有文化内涵深厚、专祠品位高、文物价值大等显著特征,具有良好的开发前景。从规划、宣传、线路开发等多维角度提出了开发利用的建议。     

攀西地区水资源及可持续利用探讨

在分析攀西地区水资源特点的基础上,从资源开发结构调整、可持续发展和区域经济发展的角度阐述了该区水资源开发的迫切性。根据攀西地区水资源开发利用存在的问题,提出了该区水资源可持续利用的对策:统筹兼顾,综合利用;把建设全国能源基地与实现地方电气化相结合,因地制宜开发水能资源;以安宁河流域为重点,加快骨干水利工程建设;抓住机遇,多渠道、多途径开发水资源。     

合理开发坡地资源--以江西省吉水县为例

本文通过对江西省吉水县坡地资源现状、特点的分析,从未利用坡地、利用不充分坡地、利用不合理坡地３方面对吉水县坡地资源进行了潜力分析,并提出了开发利用坡地资源的途径     

我国泥炭资源的储量、特征与保护利用对策

泥炭是一种经济、环境效益都十分明显的自然资源。如何科学地处理好泥炭开发、利用和保护的关系,保证社会、经济、环境可持续发展是争论颇多的课题。论文从泥炭资源过程和泥炭资源-环境-经济系统的角度,分析了我国泥炭资源的属性和特征,探讨了泥炭资源与经济、社会的相互关系,根据我国泥炭资源储量、质量与开发利用条件,提出我国应科学界定泥炭开发与保护标准,扶持和培育泥炭新兴产业,加强泥炭高新技术产品开发,提高泥炭资源的利用效率和技术附加值,降低泥炭资源消耗,走开发与保护并重的道路,促进资源开发、社会进步和环境保护协调发展。     

四湖地区湿地资源及其开发

对四湖地区的湿地资源进行了三个方面的探讨和研究:湿地类型及其特征;湿地开发及其存在的问题;湿地资源合理开发模式研究。     

河南焦作云台山世界地质公园资源特色及综合评价

河南焦作云台山世界地质公园。以山体雄伟、长崖险峻、峡谷幽深、水体秀美为特色；其地质景观资源具有种类多样性、独特性、较高的科学价值和美学观赏性等特点。公园主要地质遗迹景观质量高。资源优势突出。区位优势明显．具有良好的开发价值和市场前景。云台山世界地质公园的建立．对合理利用自然地质资源。促进旅游和地方经济、文化和自然环境的可持续发展将发挥重要作用。     

油田产能建设项目环保验收监测方案布点探讨

根据油田建设工程的特点,结合区域环境特征和工程影响环境的途径,对环保验收工作中污染源监测和环境质量监测的布点方法进行探讨。以长庆油田某产能建设项目为例,分析其项目运营期污染源,并给出相应监测布点方案。     

旅游资源的开发与环境保护

随着旅游业的发展,旅游资源的开发,环境资源也遭到了严重破坏,本文从旅游资源开 发对环境和旅游资源的影响入手,提出了开发旅游资源的风景保护对策。     

Pillar building in the fiddler crab Uca beebei: evidence for a condition-dependent ornament

In the fiddler crab (Uca beebei) males build a small mud pillar next to their burrow which increases their attractiveness to females. Three hypotheses were tested to explain inter-male variation in pillar-building. (1) The benefits of pillar-building are density dependent. The experimental addition of vertical structures did not support this hypothesis as there was no change in the level of pillar-building. (2) There are two classes of males (pillar-builders and non-pillar-builders). This could either be due to an alternative mating strategy, or because pillar building is age or size-dependent. There was also no support for this hypothesis. (3) Pillar-building is an honest signal of male quality dependent on body condition. A food supplementation experiment was performed. Addition of food affected several aspects of male behaviour and resulted in a two fold increase in the number of pillars built between control and food treatments (P < 0.001). However, the percentage of males building pillars did not increase significantly. Pillar building in this species has been attributed to sensory exploitation. Our results indicate that a trait which may well have evolved through sensory exploitation also appears to be condition-dependent. We emphasise that showing that an ornament or behaviour is condition-dependent does not necessarily mean that it evolved through good gene processes. However, in terms of its current selective value, pillar building may be maintained through female choice because it acts as a signal of male condition.