2000-2015年中国典型草原草地动态及其对管理政策的响应

发布时间：2018-05-11 10:35

本文选题：草地变化 + 管理策略　；参考：《资源科学》2017年07期

【摘要】：中国实施的生态治理和生态补偿政策,一定程度减缓了草地退化进程,但草地生产功能与生态功能之间的矛盾尚未根本解决。本研究以中国典型草原区呼伦贝尔市为研究区域,基于遥感影像资料和农牧户调研数据,采用空间自相关分析和参与式农村评估方法,分析呼伦贝尔市2000-2015年草地时空动态特征,研究结果表明,两个研究时段内,草地质量综合指数减少的面积分别占草地总面积的60.03%和24.9%,皆以轻度减少为主;草地变化空间格局上呈现显著的集聚特征,草地质量综合指数变化的低值集聚区主要位于大兴安岭以东的农牧区域,高值集聚区主要位于西部典型草原区。通过对样本点草地变化与草牧业发展政策的相关性分析发现,禁牧封育、草畜平衡和草原补贴政策对草地质量降低起到了一定遏制作用,但政策失灵和执行效率偏低弱化了政策效应。
[Abstract]:The ecological treatment and ecological compensation policies implemented in China have slowed down the process of grassland degradation to a certain extent, but the contradiction between grassland production function and ecological function has not been fundamentally resolved. Taking Hulunbeir City, a typical grassland area of China, as the study area, based on remote sensing image data and farm and pastoral survey data, spatial autocorrelation analysis and participatory rural assessment method were used to analyze the temporal and spatial dynamic characteristics of grassland in Hulunbeir city from 2000 to 2015. The results showed that the decrease of grassland quality composite index accounted for 60.03% of the total grassland area and 24.990% of the total grassland area in the two study periods. The low value agglomeration area of grassland quality comprehensive index was mainly located in the farming and pastoral area east of Daxing'an Mountains, and the high value accumulation area was mainly located in the typical grassland area in the west of China. Through the analysis of the correlation between the change of grassland and the policy of grassland development, it is found that the closed grazing, the balance of grass and livestock and the policy of grassland subsidy play a role in deterring the decline of grassland quality. However, policy failure and low implementation efficiency weaken the policy effect.
【作者单位】：河南财经政法大学资源与环境学院;中国科学院地理科学与资源研究所;
【基金】：国家杰出青年科学基金(71225005)
【分类号】：S812

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