| 中国农村户用沼气自然适宜性区划 |
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| 引用本文： | 毕于运,高春雨,王亚静,李 刚,李建政.中国农村户用沼气自然适宜性区划[J].资源科学,2009,31(8):1272-1279. |
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| 作者姓名： | 毕于运 高春雨 王亚静 李 刚 李建政 |
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| 作者单位： | 中国农业科学院农业资源与农业区划研究所,北京,100081 |
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| 基金项目： | 农业部国债沼气科技支撑项目 |
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| 摘 要： | 本文以户用沼气的自然适应性评价为主要依据,以冻土和气温为主要指标,按照户用沼气池安全越冬和沼气常温厌氧发酵的自然适宜性标准,根据安全性、效率性、共轭性、行政区域的完整性等分区原则,把我国农村户用沼气的发展划分为南方自然适宜区、北方及川藏高原条件适宜区、高寒地带非适宜区等3大类型区,各类型区又分别划分为一定数量的亚区.其中,南方自然适宜区可分为华南(含藏东南)最自然适宜区等3个亚区,北方及川藏高原条件适宜区可分为华北平原至黄土高原简易覆盖保温适宜区等5个亚区,高寒地带非适宜区则分为东北西北部高纬度严寒地带非适宜区等2个亚区.文章最后分别对各大区和各亚区的基本状况、户用沼气自然适宜性和户用沼气池建造及越冬保温管理的基本要求进行了分区评述,以期能为我国农村户用沼气发展提供科学依据和决策指导.
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| 关 键 词： | 中国 农村户用沼气 自然适宜性 区划 |
Regionalization of the Natural Suitability for Rural Household Biogas in China |
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| BI Yuyun,GAO Chunyu,WANG Yajing,LI Gang and LI Jianzheng.Regionalization of the Natural Suitability for Rural Household Biogas in China[J].Resources Science,2009,31(8):1272-1279. |
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| Authors: | BI Yuyun GAO Chunyu WANG Yajing LI Gang and LI Jianzheng |
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| Abstract: | Rural household biogas uses human and livestock manure as raw materials and its main products include biogas and biogas fertilizer. Suitable air and soil temperature is the necessary condition for household biogas digesters to generate gas safely and run normally. The low temperature and the frozen soil in winter or cold seasons are the main natural factors influencing the development of rural household biogas. According to the natural suitability, the development of household biogas can be divided into three different regions in rural China on the basis of regional principles, such as security, efficiency, conjugacy and integrity of the administrative regions, as well as regional indicator, such as frozen soil and temperature,. The naturally suitable regions are located in south China; conditionally suitable regions are in north China and west Sichuan - east Tibet Plateau; while the unsuitable regions in China are the cold area. Meanwhile, each region has some different sub-regions. It is not necessary to provide heat-retaining condition in naturally suitable regions, considering the heat preservation of household biogas digesters in winter. However, in conditionally suitable regions, to satisfy the heat-retaining condition is very important. In unsuitable regions, due to the low temperature, it is unsuitable to develop household biogas even if fully-closed heating barn is put up. Moreover, naturally suitable region in south China is further divided into three different sub-regions, which are the best level of naturally suitable sub-region in south China (including Southeastern Tibet), the medium level of naturally suitable sub-region in South of Changjiang River (including Sichuan Plateau) and the third level of naturally suitable sub-region in Han and Huaihe River valley. The conditionally suitable region is divided into five different sub-regions, including simply thermal suitable region in the area from north China plain to Loess Plateau and others, and Western Sichuan - Eastern Tibet Plateau is divided into two sub-regions including the high latitude cold area in northwestern part of northeast China and Tibetan Plateau high elevation cold area. Every region and its sub-regions are analyzed in different aspects, including the basic situation, natural suitability of household biogas development, basic requirements of building and heat preservation in winter of household biogas digesters. This study can provide scientific basis and decision guidance for the development of household biogas in the rural areas of China. |
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| Keywords: | China Rural household biogas Regional planning Natural suitability |
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