本文關(guān)鍵詞： 喀斯特 耕地 生態(tài)承載力 供需平衡 畢節(jié)市　出處：《生態(tài)學(xué)報(bào)》2017年21期 　論文類型：期刊論文

【摘要】：以喀斯特地區(qū)耕地生態(tài)承載力供需關(guān)系作為切入點(diǎn),采用GIS軟件和耕地生態(tài)足跡模型,在修正耕地產(chǎn)量因子的基礎(chǔ)上構(gòu)建喀斯特地區(qū)耕地生態(tài)承載力供需平衡指數(shù),對以喀斯特地貌為主的畢節(jié)市2014年耕地生態(tài)足跡供需平衡現(xiàn)狀進(jìn)行分析評價(jià)。結(jié)果顯示:(1)畢節(jié)市耕地生態(tài)足跡供需在空間分布上呈現(xiàn)北部盈余而南部超載的態(tài)勢;(2)國內(nèi)生產(chǎn)總值與耕地生態(tài)足跡供需平衡指數(shù)之間存在負(fù)相關(guān)關(guān)系;(3)耕地生態(tài)承載力供需平衡指數(shù)與潛在石漠化、輕度石漠化及中度石漠化面積占比之間存在負(fù)相關(guān)關(guān)系,與強(qiáng)度石漠化面積占比存在正相關(guān)關(guān)系;(4)全市8縣(區(qū))中,4個(gè)縣(區(qū))耕地生態(tài)盈余,2個(gè)縣耕地生態(tài)平衡,2個(gè)縣耕地生態(tài)赤字,全市約75.28%的人口生活在耕地生態(tài)盈余區(qū)和平衡區(qū),24.72%的人口生活在耕地生態(tài)赤字區(qū)�？蔀楫吂�(jié)市農(nóng)業(yè)產(chǎn)業(yè)結(jié)構(gòu)調(diào)整、生態(tài)安全預(yù)警、區(qū)域經(jīng)濟(jì)發(fā)展及土地利用總體規(guī)劃編制提供決策依據(jù)。
[Abstract]:Based on the relationship between supply and demand of cultivated land ecological carrying capacity in karst area, the supply and demand balance index of cultivated land ecological carrying capacity in karst area was constructed by using GIS software and cultivated land ecological footprint model. This paper analyzes and evaluates the balance between supply and demand of cultivated land ecological footprint in 2014 in Bijie City, which is dominated by karst landforms. The results show that the spatial distribution of ecological footprint supply and demand of cultivated land in Bijie City is surplus in the north and overload in the south. (2) there is a negative correlation between GDP and the balance index of supply and demand of cultivated land ecological footprint. (3) the balance index of supply and demand of cultivated land ecological carrying capacity and potential rocky desertification. There was a negative correlation between mild and moderate rocky desertification. There is a positive correlation between farmland ecological surplus in 4 counties (districts), cultivated land ecological balance in 2 counties and deficit in 2 counties in 8 counties (districts) of the city. About 75.28% of the city's population live in cultivated land ecological surplus areas and balanced areas, and 24.72 percent of the population live in cultivated land ecological deficit areas. Regional economic development and land use master planning to provide decision-making basis.
【作者單位】： 湖南師范大學(xué)資源與環(huán)境科學(xué)學(xué)院;銅仁市國土資源局;貴州科學(xué)院山地資源研究所;
【基金】：國家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFC0502406) 教育部人文社科重點(diǎn)研究基地重大項(xiàng)目(14JJD720016) 2014年度“西部之光”人才培養(yǎng)計(jì)劃項(xiàng)目“基于LUCC的貴州赤水河流域生態(tài)風(fēng)險(xiǎn)監(jiān)測與評估”
【分類號(hào)】：F323.211

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