"A typical scheme selects rotation crop s from three classifications: cultivated row crop s (e.g., corn, potatoes), close-growing grains (e.g., oats, wheat), and sod-forming, or rest, crop s (e.g., clover, clover-timothy)."

典型的輪作耕種計(jì)畫是從行間作物、密植的谷類日韩一区二区高清、草根層作物或休閑作物(如車軸草日韩超清一区二区三区无码视频、車軸草－梯牧草)中選擇輪作作物。

With the practice and research on the grade-determination of the cultivated land , the paper, based on the concept and purpose of the grade-determination of the cultivated land , has analysed the problems existing in the course of practice and summarized the reasons about " the rules of the grade-determination of farming land " which the Ministry of Land and Natural Resources had issued , including the issues about dependence between grading index of cultivated land and utilizing index ,or dependence between grading index of cultivated land and natural index , lack of the nationwide comparativity of the achievement on grade-determination of the cultivated land ,the sudden change indexes between the paddy field and its adjoint nonirrigated farmland, the representativeness of appointed crop and so on.

通過耕地分等的實(shí)踐和研究国产午夜福利电影，文章從耕地分等的內(nèi)涵和目的出發(fā)日韩免费午夜短片在线，對(duì)國(guó)土資源部頒布的《農(nóng)用地分等定級(jí)規(guī)程》在實(shí)踐過程中所存在的問題及其原因進(jìn)行了歸納和分析，其中包括耕地等指數(shù)與自然等指數(shù)伊人久久影院一区二区三区、利用等指數(shù)的相關(guān)性問題A片亚洲、欧美视频，耕地分等成果在全國(guó)范圍內(nèi)缺乏可比性問題，相鄰地塊間水田和旱地的等指數(shù)出現(xiàn)突變問題日韩精品黄在线看，指定作物的代表性問題以及熟制問題等欧美一级婬片A片人杂交。

In order to make the current grade-determination method of the cultivated land more rational, the paper has analyzed the natural and social economic factor of cultivated land quality deeply. Many ideas, including the theoretical foundation on grade-determination, the authenticity of the basic materials, the division of the index district, the determination of the appointed crops and their parameters , the largest theory output of the crop and the definition of the suitable range about index district, the control of the equivalence district in the county , the revision of the multiple crop index and the application of GIS ,etc. have been deeply discussed, and the current grading model of the cultivated land has been revised.

為使現(xiàn)行耕地分等方法更趨合理，本文以耕地質(zhì)量評(píng)價(jià)的相關(guān)理論為基礎(chǔ)国产一欧美级爱做C片免费，強(qiáng)調(diào)了基礎(chǔ)資料對(duì)等別劃分的重要性插插插插插插人人人人人人，明確了獲取方法，并對(duì)指標(biāo)區(qū)的劃分在线观看成人福利午夜视频在线、指定作物及其參數(shù)的確定欧美男女性爱视频网站，作物理論最大產(chǎn)量及其適用范圍的界定，縣域范圍內(nèi)等值區(qū)的控制国产最新免费视频在线网站，土地利用系數(shù)的修正99日韩一区二区搜索、復(fù)種指數(shù)的修正和GIS在耕地分等中的應(yīng)用等方法進(jìn)行了深入探討，修正了現(xiàn)行耕地分等模型。

cultivated area：栽培地域

cultivar 栽培變種 | cultivated area 栽培地域 | cultivated crop 中耕罪

Cultivated Pastures：牧場(chǎng)種植

農(nóng)作物學(xué)Crop Science | 牧場(chǎng)種植Cultivated Pastures | 森林學(xué)Forestry

cultivated forage grass：栽培牧草

cultivated crop 中耕罪 | cultivated forage grass 栽培牧草 | cultivated land 耕地