中国岩溶2012，Vol.31Issue(1)：46-51,6.
重庆南川区石漠化分布特征及其坡地利用模式分析
Distribution of the rocky desertification and slope-land use patterns in Nanchuan Region of Chongqing City
摘要
Abstract
Desertification distribution in Nanchuan region of Chongqing City is studied on the basis of 2004 TM and maps of geology, hydro meteorology and landuse. The results show that; lithologically, the desert mainly distributes in the areas of pure limestone and the interlayed strata of pure limestone and dolomite, which belonging to the Jialingjiang Group, Fixian'guan Group and Leikoupo Group of the Triassic system in Mesozoic and the Majiagou Group of the lower Paleozoic Ordovician; hydro meteorologically, the desert mainly distributes in the areas of the central flat land with the annual temperature ranges from 10 ℃ to 16 ℃ and annual precipitation over 1 200 mm;topographically, slightly and moderately deserted deserts mainly in 800-1 200 m area, but severely deserted area in 600-800 m, and extremely deserted desert 500~600 m a-bove sea level;in view of land use, slightly and moderately deserted deserts mainly in shrub land, the severely deserted one in non-irrigated farmland. According to the development of desertification and the distribution of the deserts, it is suggested that the gentle land(<5°) be used as paddy field by protective tillage and green food production land;and the gentle slope land(5°-15°) be used as cultivation and plantation areas;the relatively dip slope(15°-25°) as vine (honeysuckle) planting land, fruit planting land and ecologic grass land;the steep slope land(>25°)as water conservation forest and scenery forest by long term close hillsides to facilitate afforestation.关键词
重庆南川区/岩溶石漠化/分布特点/坡地利用Key words
Nanchuan region in Chongqing/rocky desertification/ distribution features/ slope land use分类
农业科技引用本文复制引用
熊平生,袁道先,谢世友,白俞..重庆南川区石漠化分布特征及其坡地利用模式分析[J].中国岩溶,2012,31(1):46-51,6.基金项目
科技部国际合作项目(2008GR1256)、国家自然科学基金(41072192)、国家科技支撑计划(2006BAC01A16)、中国地质调查局地质调查资助项目(1212010813111)、重庆市自然科学基金重点项目(CSTC2009BA0002)、重庆市科技项目(CSTC,2010BC7004) （2008GR1256）
