国土资源科技管理
國土資源科技管理
국토자원과기관리
SCIENTIFIC AND TECHNOLOGICAL MANAGEMENT OF LAND AND RESOURCES
2015年
4期
23-29
,共7页
土地利用%优化配置%生态安全%灰色线性规划%鄂西北
土地利用%優化配置%生態安全%灰色線性規劃%鄂西北
토지이용%우화배치%생태안전%회색선성규화%악서북
land use%optimal allocation%ecological security%gray linear programming%northwest Hubei
基于生态学考量的土地资源优化配置是土地科学研究的热点，也是今后土地利用规划的一个关注重点。以鄂西北山地丘陵区的中心城市襄阳市为例，在生态安全导向下对土地资源优化配置进行研究。采用PSR模型建立指标体系，对襄阳市生态安全水平进行了综合评价，在此基础上，利用灰色线性规划方法，构建土地利用结构优化的数学模型，计算得到土地资源配置最优方案。研究结果表明：①襄阳市生态环境状况整体一般，生态安全水平处于“预警”状态；②不同生态效益目标条件下，可得到多个不同的土地资源优化配置方案，最优方案是综合考虑生态环境状况、耕地保护和粮食安全、社会经济发展需求等多个因素的结果；③基于生态安全的土地利用优化配置符合襄阳市社会经济发展和生态环境保护的需求，有利于土地资源的可持续利用。
基于生態學攷量的土地資源優化配置是土地科學研究的熱點，也是今後土地利用規劃的一箇關註重點。以鄂西北山地丘陵區的中心城市襄暘市為例，在生態安全導嚮下對土地資源優化配置進行研究。採用PSR模型建立指標體繫，對襄暘市生態安全水平進行瞭綜閤評價，在此基礎上，利用灰色線性規劃方法，構建土地利用結構優化的數學模型，計算得到土地資源配置最優方案。研究結果錶明：①襄暘市生態環境狀況整體一般，生態安全水平處于“預警”狀態；②不同生態效益目標條件下，可得到多箇不同的土地資源優化配置方案，最優方案是綜閤攷慮生態環境狀況、耕地保護和糧食安全、社會經濟髮展需求等多箇因素的結果；③基于生態安全的土地利用優化配置符閤襄暘市社會經濟髮展和生態環境保護的需求，有利于土地資源的可持續利用。
기우생태학고량적토지자원우화배치시토지과학연구적열점，야시금후토지이용규화적일개관주중점。이악서북산지구릉구적중심성시양양시위례，재생태안전도향하대토지자원우화배치진행연구。채용PSR모형건립지표체계，대양양시생태안전수평진행료종합평개，재차기출상，이용회색선성규화방법，구건토지이용결구우화적수학모형，계산득도토지자원배치최우방안。연구결과표명：①양양시생태배경상황정체일반，생태안전수평처우“예경”상태；②불동생태효익목표조건하，가득도다개불동적토지자원우화배치방안，최우방안시종합고필생태배경상황、경지보호화양식안전、사회경제발전수구등다개인소적결과；③기우생태안전적토지이용우화배치부합양양시사회경제발전화생태배경보호적수구，유리우토지자원적가지속이용。
Optimal allocation of land resources based on ecological theory is a hot issue in land science field ,as well as a focus of land use planning in the future .This paper took regional central city Xiangyang in mountain and hill areas of northwestern Hubei as a study case ,and research on land optimal allocation guided by the ecological security .Index system of land resource eco‐security was established based on PSR model ,ecological security level of Xiangyang city was calculated by comprehensive evaluation .And on this basis ,a mathematical model of land‐use structure optimization was established using gray linear programming method ,and finally optimal allocation scheme of land resource was selected .The result shows:① the ecological environment of Xiangyang city is at a general level ,and ecological security of current situation is in a warning state;② there are multiple different optimal allocation schemes of land resources based on different goals of ecological benefit ,and several factors , including the state of ecological environment ,cropland preservation and food security ,and requirements of social‐economic development ,have been taken into account in the best scheme selection;③ optimal allocation of land use based on ecological security conforms to the demand of coordinated development between economic society and the eco‐environment ,and will be meaningful to the sustainable use of land resources .
