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- land ecological issue 土地生态问题
- The main causes for the deterioration of land ecological security are unreasonable reclaimation、 denudation, overgrazing and the extensive farming. 滥垦、滥伐、过度放牧以及粗放经营的生产方式是导致该地区土地生态环境安全状况不断下降的主要原因。
- This topic investigated the Hui'an County land ecological environment present situation, has appraised the land utilization type to the ecological environment influence. 本课题调查了惠安县土地生态环境的现状，评价了土地利用类型对生态环境的影响。
- Thus the macrophyte restoration should follow "The first to identify the ecological issue, the second to harness it" and "The first to improve the basic condition, the second to restore macrophyte". 因此，生态修复应该遵循“先诊断，后治理”和“先环境改善，后生态修复”的技术路线。
- The concept of land ecological safety is the land ecosystem of mankind ensure degree unaffected by ecological destroy and environment pollution in the production, living and health. 土地生态安全是指土地生态系统对人类在生产、生活和健康等方面不受生态破坏与环境污染等影响的保障程度。
- Wang Z H,Duan C Q,Qi L C,et al.A preliminary investigation of ecological issue arising the man-made forest of Eucalyptus in China[J].Chinese Journal of Ecology,1998,17(6):64-68. [7]王震洪;段昌群;起连春;等.;我国桉树林发展中的生态问题探讨[J]
- Riparian zones are the important transitional regions for exchange of substance, energy, and information between river ecological system and land ecological system, and have obvious marginal effect. 河岸带是河流生态系统与陆地生态系统进行物质、能量、信息交换的一个重要过渡带,具有明显的边缘效应。
- The EOG can also coordinate incentives and motivate more of its members to commit themselves to addressing social and ecological issues. EOG也会鼓励成员们去积极地参与相关的议题讨论。
- Based on clarifying of land ecological security and taking Hebei Province as the case, this article discusses the methods of security evaluations of land ecology. 以河北省为例,在界定土地生态安全概念的基础上,探讨了土地生态安全评价的方法。
- If special attention were not paid to these thresholds, the immoderate expansion of the oasis would take place, thus giving rise to many environmental and ecological issues. 在绿洲经济发展过程中,无视这些阈限的制约,就会出现绿洲规模扩张的无度化,并产生一系列环境、生态问题,导致绿洲人地关系的极度失调。
- land ecological and economic systems 土地生态经济系统
- land ecological environmental improvement 土地生态环境整治
- land ecological safety evaluation 土地生态安全性评价
- land ecological suitable evaluation model 土地生态适宜性评价模型
- However,a series of land ecologically maladjusted problems have emerged because of the massive lop and unreasonable utilization of land in recent decades. 在分析该区脆弱山地生态基础上,探讨了土地环境的现状和演变。
- In accordance with the commonly accepted index of security evaluation on regional land ecology, a system of 22 indexes suitable for this region is established. 依据区域土地生态安全评价一般性指标体系,建立了适合该区的由22项指标组成的土地生态安全评价指标体系。
- Land ecological security at town level 城镇土地生态安全
- The land is laid down with red or white clover. 这块土地种上了红花和白花苜蓿。
- The place used to be a stretch of barren land. 早先这里是一片不毛之地。
- Swans are surprisingly awkward on land. 天鹅在陆地上笨得出奇。
