国土与自然资源研究
國土與自然資源研究
국토여자연자원연구
TERRITORY & NATURAL RESOURCES STUDY
2013年
6期
17-20
,共4页
郭传伟%雷佳%沙迪%张雪萍
郭傳偉%雷佳%沙迪%張雪萍
곽전위%뢰가%사적%장설평
黑土%能值分析%可持续发展
黑土%能值分析%可持續髮展
흑토%능치분석%가지속발전
Black soil%Emergy evaluation indices%Sustainable development
本文运用能值分析理论对以康金镇为代表的黑龙江省耕作黑土生态系统进行研究。结果表明:2005年~2009年康金镇耕作黑土生态系统的总能值投入呈上升的趋势,工业辅助能值占总能值投入的61.8%,其中,自然资源能值占总投入的37.8%,可更新有机能的投入仅占总能值的1.6%。耕作生态系统对于购买能值的依赖使得系统的环境压力增大,环境负载率持续增长。黑龙江黑土耕作系统的净能值产出率低于全国平均水平,并呈逐年下降的趋势。生态系统能值可持续发展指数(ESI)为1.41,可持续发展潜力较大,也呈逐年下降的趋势。这些能值指标表明,农业生态系统处于传统农业向现代农业的过渡阶段,有待于进一步发展。
本文運用能值分析理論對以康金鎮為代錶的黑龍江省耕作黑土生態繫統進行研究。結果錶明:2005年~2009年康金鎮耕作黑土生態繫統的總能值投入呈上升的趨勢,工業輔助能值佔總能值投入的61.8%,其中,自然資源能值佔總投入的37.8%,可更新有機能的投入僅佔總能值的1.6%。耕作生態繫統對于購買能值的依賴使得繫統的環境壓力增大,環境負載率持續增長。黑龍江黑土耕作繫統的淨能值產齣率低于全國平均水平,併呈逐年下降的趨勢。生態繫統能值可持續髮展指數(ESI)為1.41,可持續髮展潛力較大,也呈逐年下降的趨勢。這些能值指標錶明,農業生態繫統處于傳統農業嚮現代農業的過渡階段,有待于進一步髮展。
본문운용능치분석이론대이강금진위대표적흑룡강성경작흑토생태계통진행연구。결과표명:2005년~2009년강금진경작흑토생태계통적총능치투입정상승적추세,공업보조능치점총능치투입적61.8%,기중,자연자원능치점총투입적37.8%,가경신유궤능적투입부점총능치적1.6%。경작생태계통대우구매능치적의뢰사득계통적배경압력증대,배경부재솔지속증장。흑룡강흑토경작계통적정능치산출솔저우전국평균수평,병정축년하강적추세。생태계통능치가지속발전지수(ESI)위1.41,가지속발전잠력교대,야정축년하강적추세。저사능치지표표명,농업생태계통처우전통농업향현대농업적과도계단,유대우진일보발전。
This paper use the emergy evaluation indices theory to the research of the Kangjin town as the representative of the black soil of Heilongjiang Province ecological system.The results indicated that: there was an increasing trend in the total emergy input from 2005 to 2009, among which, purchased supplemented energy accounted for 61.8%, of which mechanical power account-ed for a larger proportion. And the proportion of environmental resources was 37.8% and that of renewable organic energy value were 1.6%. Depending on the purchased supplemental energy made the agroecosystem withstand greater pressure on environ-ment, and the environmental loading ratio kept growth. The net emergy yield ratio was higher than national average, but showed a decreasing trend. The emergy sustainability index(ESI) was 1.41, which indicated a greater potential for sustainable development on the agroecosystem in Kangjin town, and a declining trend of it also. The variation of the indices was an obvious indicator for the transformation of agriculture in Kangjin town from traditional to modern pattern and the development of agroecosystems need to be further improved.