河南农业科学
河南農業科學
하남농업과학
JOURNAL OF HENAN AGRICULTURAL SCIENCES
2015年
1期
62-69
,共8页
张合兵%陈宁丽%孙江锋%刘明远%李悦%秦伟霞
張閤兵%陳寧麗%孫江鋒%劉明遠%李悅%秦偉霞
장합병%진저려%손강봉%류명원%리열%진위하
土地生态%综合指数法%障碍度%质量等级%ARCGIS
土地生態%綜閤指數法%障礙度%質量等級%ARCGIS
토지생태%종합지수법%장애도%질량등급%ARCGIS
land ecology%synthetic index method%obstacle amount%quality grade%ARCGIS
以栅格为评价单元,从土地生态自然条件、结构状况、生态干扰和生态建设4个方面构建指标体系,运用ARCGIS软件与综合指数法对平顶山市土地生态质量进行评价,并对其影响因素进行分析,以期为该地区的土地利用和政策调整提供依据。结果表明:平顶山市不同地区土地生态质量差异明显,其中鲁山县中西部土地生态质量最好,处于优等级;鲁山县东部、汝州市、宝丰县、叶县、舞钢市为良好等级;郏县除城关镇外为中等级;郏县城关镇、湛河区的北渡镇和曹镇乡、新华区土地生态质量一般;石龙区、湛河区白龟山水库管理区、卫东区土地生态质量最差。土壤污染程度和人口密度是土地生态质量的主要影响因素,林地与防护林面积比例、无污染高等级耕地面积比例、生态基础设施用地面积比例和植被生物量为土地生态质量的限制因子。
以柵格為評價單元,從土地生態自然條件、結構狀況、生態榦擾和生態建設4箇方麵構建指標體繫,運用ARCGIS軟件與綜閤指數法對平頂山市土地生態質量進行評價,併對其影響因素進行分析,以期為該地區的土地利用和政策調整提供依據。結果錶明:平頂山市不同地區土地生態質量差異明顯,其中魯山縣中西部土地生態質量最好,處于優等級;魯山縣東部、汝州市、寶豐縣、葉縣、舞鋼市為良好等級;郟縣除城關鎮外為中等級;郟縣城關鎮、湛河區的北渡鎮和曹鎮鄉、新華區土地生態質量一般;石龍區、湛河區白龜山水庫管理區、衛東區土地生態質量最差。土壤汙染程度和人口密度是土地生態質量的主要影響因素,林地與防護林麵積比例、無汙染高等級耕地麵積比例、生態基礎設施用地麵積比例和植被生物量為土地生態質量的限製因子。
이책격위평개단원,종토지생태자연조건、결구상황、생태간우화생태건설4개방면구건지표체계,운용ARCGIS연건여종합지수법대평정산시토지생태질량진행평개,병대기영향인소진행분석,이기위해지구적토지이용화정책조정제공의거。결과표명:평정산시불동지구토지생태질량차이명현,기중로산현중서부토지생태질량최호,처우우등급;로산현동부、여주시、보봉현、협현、무강시위량호등급;겹현제성관진외위중등급;겹현성관진、담하구적북도진화조진향、신화구토지생태질량일반;석룡구、담하구백구산수고관리구、위동구토지생태질량최차。토양오염정도화인구밀도시토지생태질량적주요영향인소,임지여방호림면적비례、무오염고등급경지면적비례、생태기출설시용지면적비례화식피생물량위토지생태질량적한제인자。
Taking the grid as evaluation units,the index system was established including land ecological natural conditions,structural conditions,ecological disturbance and ecological construction,the quality of land ecological quality was evaluated by ARCGIS software and synthetic index method,and the influen-cing factors were analyzed, so as to provide reference for land use and policy adjustment. The results showed that the land ecological quality in different region of Pingdingshan city was obviously different,the land ecological quality was excellent in the midwest of Lushan county;the land ecological quality were good in the east of Lushan county,Ruzhou city,Baofeng county,Yexian county and Wugang city;the land ecological quality was medium in Jiaxian county except Chengguan town;the land ecological quality was fair in Chengguan town of Jiaxian county,Beidu town and Caozhen country of Zhanhe district,and Xinhua district;the land ecological quality was poor in Baiguishan reservoir management zone of Zhanhe district, Shilong district and Weidong district. The major influence factors of land ecological quality were the extent of soil contamination and population density,the limiting factors were proportion of forest land and protec-tion forest, proportion of no-pollution high grade cultivated land, proportion of ecological infrastructure and plant biomass.