摘要
林地资源利用是一个多投入、多产出的系统,其产出不仅有直接的经济价值,而且具有宝贵的生态价值。权衡林地利用的经济价值和生态价值是可持续发展的问题。林地绿色利用效率是评价林地利用是否可持续的重要方法。采用价值当量法估算中国31省市林地的生态功能价值当量,在此基础上,运用SBM模型评价了1998年、2003年、2008年和2013年的林地绿色利用效率,分析了中国31省市林地绿色利用效率损失的主要原因和改善方向。得出结论:在1998—2013年期间,中国31省市的林地绿色利用效率呈现先下降后回升的态势;东部沿海以及拥有传统林区的省市的林地绿色利用效率表现最佳,而青海等地的林地绿色利用效率最低;对于缺乏效率的省市来说,应分清林地绿色利用效率损失的本质原因,由劳动力投入以及固定资产投资冗余导致的效率损失应加大重视程度,有的放矢,减少浪费;针对区域生态功能薄弱环节,应合理规划森林类型和林木种类,同时注意对区域森林生态系统的构建和维护。
Forested land use is a system with multi-input and multi-output. Its output has direct economic value and precious ecological value. Evaluating the economic and ecological value of forested land use is of great importance with regard to sustainable development. Green use efficiency of forested land is an important method to evaluate the sustainable use of forested land. The value equivalent method is adopted to estimate the equivalent weights of ecological value of forested land in 31 provinces and cities in China. Based on that, green utilization efficiency of forested land in 1998, 2003, 2008, and 2013 in 31 provinces and cities in China is evaluated through slack-based measure （SBM） model, and the main reasons for efficiency loss and improving directions are analyzed. Conclusions are as follows： during 1998--2013, green utilization efficiency of forested land trended down at first and trended up later. With regard to green utilization efficiency of forested land, the best performing areas are eastern coastal areas and provinces and cities with traditional forested area, while provinces such as Qinghai are the worst performers. For inefficient provinces and cities, the essential reasons for efficiency loss should be clarified. More attention should be paid to efficiency loss caused by redundant labor force and fixed-asset investment. Targeted approaches should be taken to reduce waste. Aiming at the vulnerable spots of regional ecological function, forest types and tree species should he classified reasonably, and more attention should be paid to the construction and maintenance of regional forested ecological system.
作者
何亚芬
谢花林
HE Yafen, XIE Hualin(Institute of Ecological Civilization, Jiangxi University of Finance and Economics, Nanchang 330013, Chin)
出处
《生态学报》
CAS
CSCD
北大核心
2018年第15期5452-5460,共9页
Acta Ecologica Sinica
基金
国家自然科学基金项目(41561040)
江西省主要学科学术和技术带头人资助计划(20172BCB22011)
江西省高校科技落地计划项目(KJLD14033)
江西省经济社会发展重大招标课题(17ZD03)
江西省教育厅科技项目(GJJ160431)
关键词
林地绿色利用效率
生态价值
价值当量法
SBM模型
forested land green utilization efficiency
ecological value
the value equivalent method
SBM model
