【正文】 目 錄 一、廣東省概況 ...................................................................................................................................................... 1 （一）地理位置 .................................................................................................................................................. 1 （二）自然概況 .................................................................................................................................................. 1 （三）社會(huì)經(jīng)濟(jì)條件 ......................................................................................................................................... 8 （四）廣東省土壤條件 ................................................................................................................................... 10 二、分等工作 對(duì)象 ................................................................................................................................................17 三、分等 的技術(shù)依據(jù) ...........................................................................................................................................17 四、分等 的技術(shù)方法和程序 ..............................................................................................................................17 五、分等基礎(chǔ)圖件的制作與確定 .....................................................................................................................20 （一）土地利用現(xiàn)狀圖的制作與 確定 ........................................................................................................ 20 （二）土壤類型圖的制作與確定 ................................................................................................................. 21 六、基礎(chǔ)資料收集與外業(yè)補(bǔ)充調(diào)查 .................................................................................................................22 （一）基礎(chǔ)資料的收集與整理 ..................................................................................................................... 22 （二）外業(yè)補(bǔ)充調(diào)查 ....................................................................................................................................... 34 七、農(nóng)用地分等過(guò)程 ...........................................................................................................................................39 （一）確定標(biāo)準(zhǔn)耕作制度、基準(zhǔn)作物和指定作物 .................................................................................. 39 （二）生產(chǎn)潛力指數(shù)的確定 .......................................................................................................................... 42 （三）指定作物產(chǎn)量比系數(shù)的確定 ............................................................................................................ 43 （四） 分等因素指標(biāo)區(qū)的劃分 ..................................................................................................................... 49 （五）分等單元?jiǎng)澐? ....................................................................................................................................... 50 （六）分等指標(biāo)體系的建立 .......................................................................................................................... 51 （七）評(píng)價(jià)因素的獲取及其分布 ................................................................................................................. 53 （八）編制分等因素記分規(guī)則表 ................................................................................................................. 68 （九）評(píng)價(jià)因素處理方法 .............................................................................................................................. 73 （十）自然質(zhì)量分值計(jì)算 .............................................................................................................................. 73 （十一）農(nóng)用地自然質(zhì)量等別的確定 ........................................................................................................ 76 （十二）土地利用系數(shù)計(jì)算與等值區(qū)的劃分 ........................................................................................... 85 （十三）農(nóng)用地利用等別的確定 ................................................................................................................. 95 （ 十四）土地經(jīng)濟(jì)系數(shù)計(jì)算與等值區(qū)的劃分 ......................................................................................... 105 （十五）農(nóng)用地經(jīng)濟(jì)等別的確定 ............................................................................................................... 112 八、分等成果的檢驗(yàn) ........................................................................................................................................ 121 九、省級(jí)成果匯總 ............................................................................................................................................. 124 （一）項(xiàng)目概述 .............................................................................................................................................. 124 （二）匯總方法與方案設(shè)計(jì) ........................................................................................................................ 125 （三）匯總技術(shù)流程 ..................................................................................................................................... 127 （四）分等參數(shù)的省級(jí)控制與平衡調(diào)整 ................................................................................................. 128 （五）檢查整理縣級(jí)分等成果 ................................................................................................................... 128 （六）基礎(chǔ)圖件的準(zhǔn)備 ................................................................................................................................. 129 （七）基礎(chǔ)數(shù)據(jù)的準(zhǔn)備 ................................................................................................................................. 130 （八）市級(jí)分等匯總 ..................................................................................................................................... 131 （九）省級(jí)分等匯總 ..................................................................................................................................... 136 （十）匯總成果自檢與精度分析 ............................................................................................................... 139 十、廣東省農(nóng)用地利用等等別描