草原上的人類 的英文怎麼說
中文拼音 [cǎoyuánshàngderénlèi]
草原上的人類
英文
people of the prairies- 草 : Ⅰ名詞1 （草本植物的統稱） grass 2 （指用作燃料、飼料等的稻、麥之類的莖和葉） straw 3 （草稿） dra...
- 原 : Ⅰ形容詞1 （最初的; 原來的） primary; original; former 2 （沒有加工的） unprocessed; raw Ⅱ動詞（原...
- 上 : 上名詞[語言學] （指上聲） falling-rising tone
- 的 : 4次方是 The fourth power of 2 is direction
- 類 : Ⅰ名1 （許多相似或相同的事物的綜合; 種類） class; category; kind; type 2 （姓氏） a surname Ⅱ動詞...
- 草原 : grasslands; steppe; prairie
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The thesis is based on income question, forest coverage rate and grop production. to beging with, date envelopment analysis is proved that it can be applicated into grain for green in shan - bei district, and then in view of the fact, seven esential factors which have influence on the project are found out : expense of dam, expense of crop, expense of cash tree, expense of defense tree, other economic crop, expense of grass and graziery ; and the output factors include : income of gdp, pure income per captia, the area of decreasing land loss, graziery income, crop production, income of tree, the totle income of economic crop. after the date of each facts are puted into dea model, unefficiencial decision making units ( dmu ) found. the data that are got through adjusting unefficiencial dmus dy dea can offer guide in shanbei district upgrading of an industrial structure. at the same time, taking into account some possible problems in or after grain for green in shan - bei district, the thesis bring out some propesal to improve the circ umstance, enhance the life level and put the relation of population, resource and circumstance into a healthy orbit
因此，加快退耕還林還草，調整土地利用結構和產業結構，已成為實現山川秀美工程和可持續發展戰略的必經之路。論文以解決陜北地區的收入問題，植被問題以及糧食產量問題為出發點，首先從理論上分析了包絡分析方法在陜北地區退耕還林（草）中運用的可行性，然後結合陜北地區目前的實際情況，綜合分析出影響陜北地區退耕還林（草）的關鍵的七個因素作為輸入指標：水利水保設施投入，農作物投入，經濟林種支出，防護林支出，其它經濟作物，草類支出，畜牧業投入；以退耕還林所要解決的最終問題作為輸出指標： gdp收入、農民人均純收入、水土流失減少量、牧業總產值、糧食產量、林業總產值、其他經濟作物總產值。將各指標所對應的數據代入模型后，通過分析求解得出非有效的決策單元，再運用包絡分析方法的一些基本原理對非有效的決策單元進行調整，由此所得的數據對陜北地區的實際投入具有很好的指導意義。This paper expounds the meaning of ecological security, including the international and domestic discussion, the characteristic and research meaning of ecological security, and then expounds the definition of ecological security evaluation and research development on it. on the basis of this, the author puts forward the definition of grassland ecological security, named that within the range of specific space and time, the inherent structures, outside show and function of grassland ecosystem lies in a state that under existing natural environment pressure and social economic pressure and the mankind ' s positive responses, support and influence that its ecological service can offer to mankind ' s surviving and continuous development of society and economy make human life, production, health and development being in security ; at last expounds the principle of grassland ecological security evaluation and introduces some relevant evaluation methods
本文論述了生態安全的涵義，其中包括國際、國內對其定義的探討以及生態安全的特點和研究意義；接著論述了生態安全評價的定義及其研究進展；在此基礎上，提出草原生態安全的概念，即在具體的時空范圍內，草原生態系統的內在結構、功能和外部表現，在現有的自然環境壓力和社會經濟壓力以及人類的積極響應之下，其所能提供的生態服務對人類生存和社會經濟持續發展的支持和影響，使人類的生活、生產、健康和發展不受威脅的一種狀態。The daily activities of lucy and other hominids that lived before about three million years ago appear to have been similar to those of primates living on the open savannas of africa today
露西及其他約300萬年前的人科動物，與今日生活在非洲開闊草原上的靈長類，日常活動似乎很類似。Wildlife biologists, including the equid specialist group of the iucn, which i chair, study the dwindling populations to learn as much as possible about these historically important animals while they still roam free
包括iucn我所主持的馬科動物專家小組在內的野生動物學家，正在研究這些在人類歷史上十分重要，但數量卻不斷減少的族群，以便在?們仍漫遊于大草原之際，盡可能地了解?們。The landscape types of grassland changed greatly for the reason that human settled down and developed all kinds of activity, the landscape types of grassland include : village, manpower forest, shrub, farmland and so on, and which increasing the heterogeneity of grassland in big scale
由於人類的定居及各種活動的干擾，草原地區的景觀類型發生了巨大的變化，包括居民點、人工林、灌叢、農田等多景觀類型，增加了該區域大尺度上的景觀異質性。分享友人