| Wi th the progress of the national karst rock desertification control, parts of karst rock desertification rural areas, biomass energy including fuelwood an d straws mainly employed to cooking and heating has gr adu all y switched to commercial energy involving coal, electricity and liquid gas, and yet some areas still remain traditional energy-use s tru ctu re on the basis o f biom ass e ner gy,laying aside amounts of commercial energy. T h at i s why irrationality com e s a bou t in rural energy consumption structure in karst rock de ser tif ica tio n region. Research on the relations between ru ral energy and environment of k ars t r ock desertification areas plays a impo rta nt role i n the o pti mal allocation of energy resource structure and technology. F rom September, 20 12 to Ju ne, 20 15, a c cor din g to the n ati onal twelfth five year plan major issues of scientific and tech nol ogi cal support p r og r am, the research object decides on t ypi cal mountainous r e gi o n of Karst Plateau covering Bijie, G uiz hou Province, th e demonstration area of Salaxi and Zhenfeng-Guanling Huajiang demonstration area. Based on t he theory o f Geog rap hy,conbining an array of theoretical methods involving P e r Capita Effective Heat, Biomass Potential Estimation and Cost-Income,this thesis adopts a series of methods such as Indoor Lite rat ure Analysis, Field Research, Measured Weighing and Part ici pat ory Demonstration Construction. In a bid to achieve e n er g y structure optimizing, this essay h as developed Multi Complementary Mode and Technology System w ith notable ecological b e ne f it s, ec ono mic benefits an d so cia l benefits, which provides technology support and de mon str ati on for carrying out energy optimizat ion and construction during tw elf th five year plan as well as future in similar karst rock d ese rti fic ati o n area s.( 1) We can get ro cky desertification effect o f rural energy use from the rocky desertification a rea and energy c o nsu mpt ion data in two demonstration zone. In Salaxi demonstration ar ea,there has a positive c orr ela tio n betw een fire woo d use perc ent age and rocky desertification incidence; In Huajiang demonstration area, there has a positive correlation b etw een firewood use percentage and rocky desertification incidence. I t is clear th at,the r o ck y desertification incidence and firewood use have a close relationship. From t he perspec tiv e of quan tit ati ve, it effectively verify the re lat ion s between firewood use and ro cky desertification, and overcome d e fec t of former research in this area. Therefore, it ’ s significant to research the conn ect ion between e n er g y and rocky desertification in kars t ro ckydesertification areas. We can learn from ecology and ec ono mic thoughts, e x pl o ri n g t heo ret ica l method about the correlation of rural en erg y an d rocky desertification effect. Ultimately, this paper could provide a theoretical basis for reducing ecological damage, re tar din g s oil erosion and consolidating the governing effect on rocky d ese rti fic ati on.( 2) According to the per capita effective de man d in two demonstration areas in 2012, to calculate the per capita energy consumption physical demand quantity in all energy in 2017 and2022, and the quantitative estimation of livestock manure and straw in two demonstration areas. The conc lus ion is the s eri ous shortage of f ire woo d su ppl y in Salaxi Bijie, but livestock manure and straw has great potential, existing rural ener gy c o nsu mpt ion structure is t rad iti ona l, biomass energy waste large; prediction of annual wood s upp ly and demand is insufficient in Hu aji ang demonstration area, but rich i n solar energy resources, it can be f urt her de vel ope d and utilized. Scientifically, it predicts the energy supply and demand in the f utu re, and analyzes th e energy resources of rural areas effectively from the poin t of quantification. Ther efo re, it is of great significance f o r the exploration of the energy utilization prospect and the substitution resource in the karst rock desertification area byusing the comprehensive anal ysi s meth od. T he largest supp ly of resources and potential resource utility maximization can b e the premise, a series theoretical methods of rational analysis of energy supply, d ema nd contradiction and potential development can be made. It can r edu ce the traditional fuelwood consumption,increase to provide an e f fe c ti v e basi s for the development and utilization of clean and efficient ener gy.( 3)This paper a ime d at the rural energy status, potential force and future de vel opm ent trends in two demonstration areas,combined with the homogeneity of natu ral reso urc es, econ omi c and social conditions and the homo pla sy of t he cause of desertification a nd control measures, and built energy optimization mode in different rock desertification. Salaxi demonstration: Multi energy complementary mode of “ one construction-four support”,“five c han ge- two construction-one support”, “four c omb ina tio n”. Huaj ian g demonstration: Mu lti energy complementary mode of “two construction- two su ppo rt ”,“ three combination ”. This paper took geographical regionalization me tho ds, b uil t rural energy optimization mode in rocky de ser tif ica tio n area, and put forward differe nt and suitable t e ch n ol o gy sy ste m. Therefore, by applying the methods of th e geographic regionalization methods, further study theoptimization m o de l of maximum benefits of rural energy utilization in karst rocky dese rti fic ati on area i s of gr eat significance. The work could take methods of a l ti t ud e part iti on,rocky desertification partition and village-level partition et al, pl ane d rural energy development pattern of ro cky desertification a rea, a nd formed a seri es of suitable energy optimization model and th e technical system for the de vel opm ent in rocky desertification area. Finally, optimize m o de l can provide the powerful reference and technical g uid anc e for the construction and development in kars t rock y dese rti fic ati on.( 4) This paper c omb ine d wi th a ll k ind s of literature and monitoring, evaluated the be nef its of each technical program in pluripotent complementary mode. Ener gy opti miz ati on m ode has improved t h e air condition and rocky d ese rti fic ati o n status effectively, re duc ed energy costs, reduced human e xpe n se s and optimized the village environment. It can clearly be seen t h at pluripotent co mpl eme nta ry m ode can bring good ecology, ecologic and economic bene fit s, which is worth promoting. According to energy opt i mi z at i on mo de in two different demonstration areas,this paper us ed a variety of methods o f benefit e v alu ati on,evaluated benefits of different p lur ipo ten t complementary mode comprehensively, and described the ecological, economic andsocial be nef its which were bought by a ll kinds of the a l ter nat ive energy te chn olo gy. Therefore, it is significant for the sustainable development of pluripotent comp lem ent ary mode of rural e ner g y to st and ard ize th e p roc ess o f b ene fit s rural energy monitoring in rocky desertific ati on area, a n d t o use the comprehensive benefits e val uat ion to asse ss t h e energy m ode l. It can be combined with a v ari ety of mathematical methods and models and established a scientific and reasonable index system of benefit evaluation. Eventually, that can provide a strong ba sis for the promotion and d eve lop men t of the good m o de l s. |
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