本文選題：可調(diào)整地類(lèi)　切入點(diǎn)：評(píng)價(jià)　出處：《土壤》2017年05期

【摘要】：為了解重慶市近郊區(qū)可調(diào)整地類(lèi)基礎(chǔ)地力詳情,劃分可調(diào)整地類(lèi)開(kāi)墾為耕地的適宜性級(jí)別,本文以重慶市九龍坡區(qū)的可調(diào)整地類(lèi)為研究對(duì)象,借助3S技術(shù),結(jié)合野外調(diào)查、采樣分析等方法獲得可調(diào)整地類(lèi)相關(guān)信息,運(yùn)用層次分析法、模糊數(shù)學(xué)法進(jìn)行綜合評(píng)判,用總分值頻率曲線法劃分地力等級(jí),用四象限法劃分適宜性區(qū)域。結(jié)果表明:九龍坡區(qū)2 353.05 hm~2的可調(diào)整地類(lèi)中,肥力一級(jí)地、二級(jí)地、三級(jí)地、四級(jí)地和五級(jí)地面積分別為403.96、519.47、617.86、625.46和187.29 hm~2,分別占全區(qū)可調(diào)整地類(lèi)總面積的17.16%、22.07%、26.25%、26.57%和7.95%;最適宜開(kāi)墾、基本適宜開(kāi)墾、較適宜開(kāi)墾和不適宜開(kāi)墾的區(qū)域面積分別為243.42、983.55、556.64和660.42 hm~2,分別占全區(qū)可調(diào)整地類(lèi)總面積的10.34%、37.96%、23.65%和28.05%。評(píng)價(jià)結(jié)果與實(shí)際調(diào)查結(jié)果吻合度較高,因此,可參照本次評(píng)價(jià)結(jié)果對(duì)可調(diào)整地類(lèi)進(jìn)行適當(dāng)改良,從而為重慶市九龍坡區(qū)耕地占補(bǔ)平衡提供依據(jù)和參考。
[Abstract]:In order to understand the details of the basic soil fertility of adjustable ground types in the suburbs of Chongqing, and to divide the adjustable land reclamation into the suitable grade of cultivated land, this paper takes the adjustable ground types in Jiulong Slope area of Chongqing as the research object, with the help of 3s technology, combined with the field investigation.The methods of sampling and analysis were used to obtain the relevant information of adjustable ground classes. The analytic hierarchy process (AHP) and the fuzzy mathematics method were used to evaluate the soil force. The total score frequency curve method was used to divide the soil force grade and the four quadrant method was used to divide the suitability area.緇撴灉琛ㄦ槑:涔?jié)榫欏潯鍖? 353.05 hm~2鐨勫彲璋冩暣鍦扮被涓，

本文編號(hào)：1707820