[1]MA Ru-biao,LIU Yun,WANG Jin-liang,et al.Analysis of Agricultural Ecological Energy at County Level in Tibetan Areas of Yunnan Province[J].Research of Soil and Water Conservation,2014,21(04):92-96.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 04
Page number:
92-96
Column:
Public date:
2014-08-28
- Title:
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Analysis of Agricultural Ecological Energy at County Level in Tibetan Areas of Yunnan Province
- Author(s):
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MA Ru-biao1, LIU Yun2, WANG Jin-liang2, SU Shao-hua2, WANG Yan-ying2, SONG Jia2
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1. Chuxiong Teachers College, Chuxiong, Yunnan 675000, China;
2. College of Tourism and Geography science, Yunnan Normal University, Kunming 650500, China
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- Keywords:
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agro-ecosystems; analysis of energy; country level; Shangri-La; Tibetan area
- CLC:
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S181
- DOI:
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- Abstract:
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In order to better evaluate the situation of solar energy resources utilization and sustainable development of agriculture at county level in Tibetan areas of Yunnan, quantitative analysis of energy input and output, environmental carrying capacity and operation results of agricultural ecological system in Shangri-La County has been carried out by using enrgy analysis method. The results show that the net output of agricultural ecosystems energy of the study area is 342.66, energy input rate is 0.01, energy density is 3.49×1011 sej/m2; the mean consumption of energy per capita is 2.32×1016 sej /people, energy yield percapita is 8.42×1016 sej; the environment contribution rate, renewable resource input ratio, nonrenewable resource investment and nonrenewable industrial auxiliary energy investment rate are 98.97, 97.34, 1.63 and 1.03, respectively; environmental capacity is 0.027; the energy based sustainability development index is 12 691.11. The results also show that agricultural economic development is relative backwardness, and the sustainable development ability is weak. In order to promote agricultural economy and strengthen the agricultural sustainable development ability, Shangri-La County should increase inputs of high grade ability energy, adjust the energy investment structure quickly and accelerate to change agricultural development mode.