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。
Avec des champs qui repr sentent peine 7 de la surface cultiv e du monde, notre agriculture nourrit une population qui d passe un cinqui me de la population mondiale
我們的農業以不到世界百分之
七的
耕地面積，卻養活了超過世界五分之一的人口。
Avec des cham qui repr sentent peine 7 de la surface cultiv e du monde, notre agriculture nourrit une population qui d pa e un cinqui me de la population mondiale
我們的農業以不到世界百分之
七的
耕地面積，卻養活了超過世界五分之一的人口。
About 4, 000 - 7, 000 years ago, there had already been the agriculture race who settled down in the region of shen pond, they were engaged in the original agriculture of the knife farm material for new fire and various management activities, such as catching, hunting, collecting, feed the livestock etc., and had already spin cotton, weaving
約四千至
七千年前，滇池一帶已有了定居的農業民族，從事「刀
耕火種」的原始農業和捕撈狩獵採集飼養畜禽等多種經營活動，並已能紡紗織布。 2800年前，滇池周圍已進入了青銅器時代。
And apropos of coffin of stones, the analogy was not at all bad, as it was in fact a stoning to death on the part of seventytwo out of eighty odd constituencies that ratted at the time of the split and chiefly the belauded peasant class, probably the selfsame evicted tenants he had put in their holdings
因為他確實是被人用石頭砸死的。鬧分裂的時候，八十幾名議員中竟有
七十二個倒了戈272 。主要是他曾經大捧特捧的農民階級，大概就是被剝奪了佃
耕權后，他替他們收回來的那些佃戶哩。
Six days thou shalt work, but on the seventh day thou shalt rest : in earing time and in harvest thou shalt rest
21你六日要作工，第
七日要安息，雖在
耕種收割的時候也要安息。
From thence i touch d at the brasils, from whence i sent a bark, which i bought there, with more people to the island, and in it, besides other supplies, i sent seven women, being such as i found proper for service, or for wives to such as would take them : as to the english men, i promis d them to send them some women from england, with a good cargoe of necessaries, if they would apply themselves to planting, which i afterwards perform d
在那條船上，除了一些應用物品外，又給他們送了
七個婦女去。這
七個婦女都是經我親自挑選的，有的適于幹活，有的適于做老婆，只要那邊有人願意娶她們。至於那幾個英國人，只要他們願意在島上勤于
耕作，我答應從英國給他們送幾個女人和大批的日用必需品去。
On march 1, 1950, chiang resumed the presidency in taipei. politically, he began to implement local self - government by holding local elections for county magistrates, city mayors, and both county and city councilmen
在政治方面，開始實行地方自治，進行縣市議員與縣市長的民選在經濟方面，先後實施三
七五減租公地放領及
耕者有其田方案，成功的完成了土地改革。
It was built by the chan clan in 1786. the chan clan moved from guangdong in the 1750s, and settled in tsuen wan, where they reclaimed land along the seashore for cultivation
三棟屋於一
七八六年由陳姓客家人建立，陳氏家族於十八世紀中期從廣東移居本港，擇居荃灣，並且填平沿海的土地作
耕種之用。
According to the valuation of 1831, there were in concord two thousand one hundred and eleven acres, or about one seventh of the whole territory in meadow ; this standing next in the list after pasturage and unimproved lands, and, judging from the returns of previous years, the meadow is not reclaimed so fast as the woods are cleared
根據1831的評估，康科德有兩千一百一十一英畝的土地，整個區域大約有
七分之一處于草甸中；這些未砍伐的區域位於牧場和未
耕種土地之外的田壟里，並且以前一年的結果來看，樹木一旦被砍伐掉，草甸就無法再生了。
However, surveys found that of the total of 47, 000 hectares of agricultural land damaged by tsunami waves in indonesia, sri lanka, maldives, india and thailand, about 38, 000 hectares, or 81 percent, can be used for cultivation this year, said fao
然而，調查發現在總數達四萬
七千公頃，受到海嘯波浪殃及的印尼、斯里蘭卡、馬爾地夫、印度與泰國的農地中，約有三萬八千公頃，或百分之八十一的土地能用於今年的
耕作，糧農組織說。
The two major challenges facing china today center on maintaining sustained economic growth and feeding its growing population of oer 1. 2 billion people with only seen percent of the world ' s cultiable land
現在，中國面臨的兩大挑戰是保持持續的經濟增長和靠世界上僅僅百分之
七的可
耕地養活仍在增長的12億人口。
In some cases, one can use cello bow to play on the guzheng to produce sustained sounds and special effects. one can also use sticks to hit on the strings in the way like a percussion instrument
隨著漢代相和歌的興起，古箏藝術進入了一個全新的時代，並逐步發展為六
七種絲竹樂器
耕相迭奏，歌手擊節唱和的形式。
Every seventh year we will forgo working the land and will cancel all debts
每逢第13七年必不耕種，凡欠我們債的必不追14討。
