摘要
在未利用地和工矿废弃地宜耕性评价的基础上,探讨了襄阳市耕地后备资源开发时序和生态损益。结果表明:1襄阳市宜耕性面积为30 074.26 hm2,包括荒草地、滩涂、沙地和工矿废弃地等;2襄阳市耕地后备资源开发时序为:先开发(23.62%)>较先开发(65.30%)>较后开发(7.91%)>后开发(3.17%),各县(区)开发时序依次为宜城市、枣阳市、襄州区、谷城县、老河口、南漳县、襄城区、樊城区和保康县;3耕地后备资源开发前后生态服务总值由6.42亿元降为1.91亿元,食物生产和原材料生产价值分别增加0.21亿元和0.01亿元,气候调节和废物处理价值呈现"落势",分别减少1.37亿元和1.27亿元。
On the basis of suitability evaluation of the unused land and desert land in industrial mining area, the sequence and ecological gains and losses of reserve resources of cultivated land development in Xiangyang City were discussed. The results show that(1) the area of reserve resources of cultivated land is 30 074.26 hm2 in Xiangyang City, which includes grassland, beach, sand and desert land in industrial mining area.(2) Temporal development of cultivated land resource is as follow: priori development, slightly priori development, slightly post-development,post-development.(3) Ecological service value has been reduced from 6.42 million to 1.91 million before and after the development of reserved cultivated land resources. The production of raw materials and production value of food have been gone up. And climate regulation and waste disposal value have been gone down.
出处
《地理空间信息》
2016年第11期74-77,共4页
Geospatial Information
关键词
耕地后备资源
宜耕性评价
开发时序
生态损益
reserve resources of cultivated land
suitable cultivation evaluation
development sequence
ecological gains and losses
