贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
7期
236-238,243
,共4页
人地关系%水土流失%土壤侵蚀模数%人类活动无序度%地域承载量%贵州
人地關繫%水土流失%土壤侵蝕模數%人類活動無序度%地域承載量%貴州
인지관계%수토류실%토양침식모수%인류활동무서도%지역승재량%귀주
man-land relationship%soil erosion%soil erosion modulus%disorder degree of human activity%regional carrying capacity%Guizhou
为探索不同经济发展水平条件下人地关系对土壤侵蚀的影响，选定3个不同经济发展水平乡镇作为研究对象，根据水土流失通用公式估算土壤侵蚀模数，同时收集社会经济发展数据，计算人类活动无序度、地域承载量等人地关系指标，评价这3个乡（镇）人地关系状况，然后分析人地关系指标与土壤侵蚀模数之间的关系。结果表明：3个研究区域即红枫湖镇、白云镇和广顺镇，土壤侵蚀模数分别为460．94 t/（km2·a）、836．88 t/（km2·a）和870．59 t/（km2·a），均低于贵州省的平均值1432 t/（km2·a）。研究乡（镇）经济发展的水平越高，人类活动无序度越小，地域承载量越大，社会经济发展水平最高的红枫湖镇人类活动无序度最低，为1．563，地域承载量最高，为2．865；社会经济发展水平最低的广顺镇人类活动无序度最高，为2．948，地域承载量最低，为1．817；3个乡（镇）的土壤侵蚀模数与人类活动无序度呈正相关关系，与地域承载量呈负相关关系。
為探索不同經濟髮展水平條件下人地關繫對土壤侵蝕的影響，選定3箇不同經濟髮展水平鄉鎮作為研究對象，根據水土流失通用公式估算土壤侵蝕模數，同時收集社會經濟髮展數據，計算人類活動無序度、地域承載量等人地關繫指標，評價這3箇鄉（鎮）人地關繫狀況，然後分析人地關繫指標與土壤侵蝕模數之間的關繫。結果錶明：3箇研究區域即紅楓湖鎮、白雲鎮和廣順鎮，土壤侵蝕模數分彆為460．94 t/（km2·a）、836．88 t/（km2·a）和870．59 t/（km2·a），均低于貴州省的平均值1432 t/（km2·a）。研究鄉（鎮）經濟髮展的水平越高，人類活動無序度越小，地域承載量越大，社會經濟髮展水平最高的紅楓湖鎮人類活動無序度最低，為1．563，地域承載量最高，為2．865；社會經濟髮展水平最低的廣順鎮人類活動無序度最高，為2．948，地域承載量最低，為1．817；3箇鄉（鎮）的土壤侵蝕模數與人類活動無序度呈正相關關繫，與地域承載量呈負相關關繫。
위탐색불동경제발전수평조건하인지관계대토양침식적영향，선정3개불동경제발전수평향진작위연구대상，근거수토류실통용공식고산토양침식모수，동시수집사회경제발전수거，계산인류활동무서도、지역승재량등인지관계지표，평개저3개향（진）인지관계상황，연후분석인지관계지표여토양침식모수지간적관계。결과표명：3개연구구역즉홍풍호진、백운진화엄순진，토양침식모수분별위460．94 t/（km2·a）、836．88 t/（km2·a）화870．59 t/（km2·a），균저우귀주성적평균치1432 t/（km2·a）。연구향（진）경제발전적수평월고，인류활동무서도월소，지역승재량월대，사회경제발전수평최고적홍풍호진인류활동무서도최저，위1．563，지역승재량최고，위2．865；사회경제발전수평최저적엄순진인류활동무서도최고，위2．948，지역승재량최저，위1．817；3개향（진）적토양침식모수여인류활동무서도정정상관관계，여지역승재량정부상관관계。
Three towns with different economic development levels were used as research obj ects to study the effect of man-land relationship with different economic development levels on soil erosion .First, the soil erosion modulus was estimated by the general soil erosion formula. Secondly, the man-land relationship indexes of human activity disorder degree and regional carrying capacity were calculated based on the data of social economic development.Finally,the relationship between man-land relationship and soil erosion modulus of three towns was analyzed.The soil erosion modulus of Hongfenghu,Baiyun and Guangshun town is 460.94 t/(km2 ·a),836.88 t/(km2 ·a)and 870.59 t/(km2 ·a)respectively,lower than 1 432 t/(km2 · a)(the mean in Guizhou).The higher the economic development is,the less the disorder degree of human activities is and the higher the regional carrying capacity is.The indexes of disorder degree and regional carrying capacity of Hongfehghu town with the maximum social economic development level are 1.563 and 2.865 but the indexes of disorder degree and regional carrying capacity of Guangshun town with the minimum social economic development level are 2.948 and 1.817.In conclusion, there is a positive correlativity between the soil erosion modulus and disorder degree of human activity and a negative correlativity between the soil erosion modulus and regional carrying capacity.
