全球变化背景下南方丘陵区农业生态系统适应性时空演变特征.PDF

2017 2 25 2 Chinese Journal of Eco-Agriculture, Feb. 2017, 25(2): 147?156 DOI: 10.13930/ki.cjea.160884 , , ,. [J]. , 2017, 25(2): 147?156 Zhou S X, Chen L L, Liu L F, Wang P. Spatio-temporal evolution characteristics of agro-ecosystem adaptability response to global change in South China hilly regions: A case study of Hengyang Basin[J]. Chinese Journal of Eco-Agriculture, 2017, 25(2): 147?156 * ——以衡阳盆地为例 周松秀1, 陈林林2, 刘兰芳1, 王 鹏1 (1. 421002; 2. 313200) : 生态系统适应性已成为全球变化与发展的热点问题。生态系统适应性演变是全球变化区域响应的重 要表现。我国南方丘陵区是典型的稻作农业区, 研究其农业生态系统适应性十分重要。文章以衡阳盆地为例, 从自然、社会、经济 3 个方面选择 12 个指标构建农业生态系统适应性评价指标体系, 评价单元分为衡阳市区 及其各县域, 以 1999—2014 年共 16 年为研究时域, 用熵权法确定指标权重, 计算衡阳盆地的适应能力指数。 结果表明: 衡阳盆地农业生态系统适应性总体状况较好, 其空间分异较复杂, 耒阳市的适应能力最强, 祁东县 次之, 常宁市最弱。时间演变表现为波动上升的特点, 评价时域 16 年分为 3 阶段: 1999—2004 年为适应性小 幅度振荡的低值阶段, 2005—2010 年为适应性显著波动总体上升阶段, 2010—2014 年为适应性快速上升阶段。 研究结论可为研究区农业可持续发展提供借鉴。 : 农业生态系统; 适应性; 熵权法; 空间分异; 时间演变; 衡阳盆地 : X171 : A : 1671-3990(2017)02-0147-10 Spatio-temporal evolution characteristics of agro-ecosystem adaptability response to global change in South China hilly regions: A case study of Hengyang Basin* ZHOU Songxiu1, CHEN Linlin2, LIU Lanfang1, WANG Peng1 (1. College of City and Tourism, Hengyang Normal University, Hengyang 421002, China; 2. Deqing County Qiushi Senior Middle School, Huzhou 313200, China) Abstract: There is renewed interest in the evolution of the adaptability of ecosystem to global change. It is important to study rice farming regions in hilly areas of Hengyang Basin. As a rice-based agricultural region, it is very important to study the adaptability of agricultural ecosystem (AAE) in South China. Previous studies have shown that in Hengyang Basin, a typical agricultural ecosystem in South China, obvious spatial distribution patterns of AAE were higher in periphery regions and lower in the middle regions of the basin. However, the temporal and spatial variation characteristics of AAE were not completely * (16JCD056) (12C0531) , E-mail: zhousongxiu@163.com : 2016-10-08 :