生态的
- 与 生态的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The second part give an all-around demonstration on eco-economic backgrounds of hilly gullied loess region and concluded that small watersheds are dominant landscape units that enable them to be basic for regional management and development. Ecological and economic strategies for regional development are also put forward: soil and water conservation to improve ecological environment should be first-line task the region shoulders in the new century."Grain for Green"policy provides chances of accelerating development for the region. Maintaining food self-supporting based on an improved ecological environment; combining agriculture and husbandry in the production system; taking husbandry as pivot while selectively develop cash forest.
第二部分综合阐述了黄土高原丘陵沟壑区的生态经济背景,指出:小流域为黄土丘陵沟壑区的优势景观单元,是区域治理与发展的基本单元;并提出区域治理与开发的生态与生产定位:区域应以水土保持、改善生态环境为新世纪的主要战略任务,国家的退耕还林草政策为区域加大环境治理提供了新的契机;在生态环境明显改善的基础上实现粮食自给,实行农牧结合,重点发展畜牧业,有选择的发展经济林果业。
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The thesis is organized into three parts: in the first part, through analysis of the ideal of habitat environment in the traditional culture, the central issues of the study -natural ecology and morphological ecology - are proposed; in the second part, through the theory of sustainable development and ecology, the typical cased in traditional habitat are evaluated from different standpoints, and sustainable development strategies of the traditional habitat environment in the aspects of natural ecology and morphological ecology are recapitulated; in the third part, with cases of the experimental practices nowadays in habitat environment, the possibility of the representation and development of the spirit in the traditional ideal habitat environment are finally presented.
本文的研究框架分为三个部分:第一部分通过对传统文化中反映的人居环境理想的分析,提出传统理想人居环境的研究核心——自然生态与形态生态;第二部分运用当今的可持续发展理论、生态学观点,多角度地评析了传统人居环境的典型案例,概括出传统人居环境在实现自然生态与形态生态两个方面所遵循的可持续发展的原则;第三部分从目前人居环境领域内的实验性探索切入,探索了传统的理想人居环境精华在当代再现并发展的可能性。
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It establishes the eco-economic regionalizing index system on the basis of analyzing economical, social and environmental elements of Huarong County thoroughly. Huarong County is divided into six eco-economic regions by the model which contains the foundation regionalization, industry regionalization adjustment and ecological regionalization adjustment.
在分析华容县经济、社会、环境要素的基础上,构建了华容县生态经济分区的指标体系,通过基础区划——产业区划调整——生态区划调整模型,将华容县划分为6大生态经济区。
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Beneficial bacteria, it is with the characteristic of ammonification, nitrification, denitrification, desulfidation and dephosphorylation, etc., its growth is very quickly, it has the good efficiency for degrading water quality factor, it can well reduce ammonia and nitrogen, degrade nitrite, increase the dissolved oxygen in water, activate water quality, rich water, purify water, adjust water color, increase the transparency of water, restrain the reproduction of pathogen, prevent diseases of fish, by using this product for long term, can restore the water-ecological balance destroyed by slathering disinfector, antibiotics, form the advantage community, improve the water quality quickly, keep the good water ecological balance, decrease the disk of breeding, increase the benefit of breeding.
具有氨化、硝化、反硝化、脱硫除磷等生理特性,生长快,对水质因子降解效能高,可有效降低氨氮、降解亚硝酸盐、增加水中溶氧、活化水质、肥水、净水、调整水色、增加水体透明度、抑制病原菌繁殖、预防细菌性鱼病发生、长期使用本品可有效修复因大量使用消毒剂、抗生素等破坏的水生态平衡,形成优势种群,快捷改善水质质量,维持水体良性生态平衡。达到健康养殖、生态防病的目的,降低养殖风险,提高养殖效益。
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Result The temporal and spatial niche breadth index of mango anthracnose in control area were 0.1785 and 0.9656, resp., that in conventional area were 0.1754 and 0.7966, resp., and that in prediction area were 0.1762 and 0.8267, resp.
结果]对照区芒果炭疽病时间和空间生态位宽度指数分别为0.1785、0.9656;常规区芒果炭疽病的时间和空间生态位宽度指数为0.1754和0.7966;预测区芒果炭疽病的时间和空间生态位宽度指数为0.1762和0.8267。
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The thesis studies seashore ecotourist area and probes into its development model by combing the actual development of the seashore ecotourism in Jiangsu Province.
本文以海滨生态旅游地为研究对象,结合江苏省海滨生态旅游的开发实际,对海滨生态旅游地的开发模式进行了探讨。
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Since the 1980s China has made great efforts to conduct the construction of ecological agriculture and has tried every means to find a sustainable agricultural development mode that can not only increase the output of grain and other farm produce, but also help improve the ecological environment.
八十年代以来,中国积极进行生态农业建设,寻求既能增产粮食等农产品,又能使生态环境得到改善的农业可持续发展模式:综合治理小流域水土流失面积6700多万公顷;建立了不同类型、县乡村不同规模的生态农业试点2000多个
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In Kubuqi sandland of Erdos plateau, according to the investigating result of the component of rodent animal, vegetation and soil from the different habitat at 1995, we analyzed the connections between the community structure of sand land rodent animal and environment by COA, and described the spatial niche of the main rodent animal by the Levins index of niche width and Petraitis overlapping index of niche.
根据 1 995年在鄂尔多斯高原库布其沙地不同生境类型上鼠类构成、植被以及土壤因子的调查结果,以对应分析排序技术分析了沙地啮齿动物群落结构与环境因子的关系,以 Levins生态位宽度指数和 Petraitis种群生态位重叠指数对常见啮齿动物种群空间生态位进行定量描述。
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MethodsFive indexes, ShannonWeaner diversity value, Pielou uniformity value, dominance value, Levins niche width value and Petraitis niche overlap value were calculated to describe the community structure and niche characteristics of the HFRS host rats in the experimental districts.
方法以ShannonWeaner的群落多样性指数、Pielou群落均匀度指数、优势度指数、Levins生态位宽度指数、Petraitis生态位重叠指数定量描述疫区内HFRS宿主鼠类的种群结构及生态位特征。
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In inche overlaps, the niche overlop of B. platyphylla and P. davidiana, B. platyphylla and A. mono, B. platyphylla and J. mandshurica were big. Otherwise, P. orientalis, Q. aliena, Ailanthus altissima, U. macrocarpa with other species were small.
3在生态位重叠指数中,白桦和山杨、色木槭和白桦、白蜡和胡桃楸、色木槭和山杨生态位重叠较大,而侧柏、槲栎、臭椿和大果榆与其他的多个主要树种的生态重叠指数较小。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。