本文選題：能值分析 + 農(nóng)業(yè)循環(huán)經(jīng)濟(jì)�。� 參考：《福建師范大學(xué)學(xué)報(bào)(自然科學(xué)版)》2016年03期

【摘要】：為探究農(nóng)業(yè)循環(huán)經(jīng)濟(jì)在土壤侵蝕區(qū)的適應(yīng)性與發(fā)展?jié)摿?選取福建省長(zhǎng)汀縣典型農(nóng)戶循環(huán)經(jīng)濟(jì)(模式Ⅰ)及傳統(tǒng)類型(模式Ⅱ)進(jìn)行能值流動(dòng)比較,并運(yùn)用凈能值產(chǎn)出率(EYR)、能值投資率(EIR)環(huán)境負(fù)載率(ELR)、可持續(xù)性發(fā)展指數(shù)(ESI)、能值投入密度及能值反饋率指標(biāo)進(jìn)行評(píng)價(jià).結(jié)果表明:模式Ⅰ的EYR、EIR、ELR分別是模式Ⅱ的4.15倍、1.13倍和0.15倍,模式Ⅰ經(jīng)濟(jì)發(fā)展程度相對(duì)較高,對(duì)環(huán)境的依賴相對(duì)較弱;從可持續(xù)性指數(shù)方面可得出,模式Ⅰ與模式Ⅱ的能值ESI分別為6.85,0.26,表明模式Ⅰ具有活力與發(fā)展?jié)摿?模式Ⅱ?qū)儆谙M(fèi)型經(jīng)濟(jì)系統(tǒng),不具有可持續(xù)性;模式Ⅰ的能值投入密度為1.90E+12 sej,高于模式Ⅱ的1.66E+12 sej,模式Ⅰ開發(fā)程度和集約化程度比模式Ⅱ高,結(jié)構(gòu)較為合理;模式Ⅰ能值反饋率為4.3%,具有一定的主動(dòng)調(diào)節(jié)、組織能力.因此總體上說,紅壤侵蝕區(qū)循環(huán)經(jīng)濟(jì)模式具有更高的經(jīng)濟(jì)效益和環(huán)境效益,可推動(dòng)當(dāng)?shù)剞r(nóng)戶可持續(xù)發(fā)展.
[Abstract]:In order to explore the adaptability and development potential of agricultural circular economy in soil erosion area, the typical farmers' circular economy (mode I) and traditional type (mode II) in Changting County, Fujian Province, were selected to compare the emergy flow. The net emergy output ratio (EYR), emergy investment rate (EIR), environmental load rate (ELR), sustainable development index (ESI), emergy input density and emergy feedback rate were used to evaluate. The results show that the ELR of mode 鈪，

本文編號(hào)：2066696