摘要
毕节赤水河流域是一个典型的喀斯特山区农业地带。通过对该流域土地利用现状评价分析,结果表明:(1)该流域土地利用以耕地和林地为主,各个乡镇的土地利用多样性相差不大,土地利用结构具有趋同性。(2)清水铺镇的土地综合利用程度最高,其他多数乡镇具有综合开发利用的潜能;该流域土地利用和垦殖率较高,耕地后备资源不足,水土流失严重,对该流域生态环境和石漠化产生潜在威胁。(3)地形与坡度、气候和石漠化、人口因素是该流域土地利用现状发生变化的驱动力因子。因此,建议因地制宜地调整和转变该流域土地利用结构和方式,综合防治该流域生态环境,这对科学制定毕节赤水河流域经济社会发展计划,实现资源、人口、环境协调发展有着十分重要的决策参考价值。
The Bijie Chishui River drainage is analysis, the study shows ： （ 1 ） In the drainage a typical karst mountainous agricultural zone. Through the cultivated land are forest land ara main, the land use diversity of various townships is not significant, the land use structure of townships have a trend of convergence. （2） At the Qinshuipu town the comprehensive utilization of land degree is the highest, where most of towns the land comprehensive development and utilization have more potential. Meanwhile the drainage has the proportion of reserve land and cultivation rate is higher, which produces potential threaten to the drainage ecological environment and rocky desertification. （3） The terrain and slope, climate and rocky desertification, populations are its driving factors of the land use change. So, the study suggests that changes the land use structures and patterns, comprehensively controls the drainage ecological environment, on the basis of the local conditions. It has a drastic important deciding and referencing values to make plans about economic and social development of the Bijie Chishui River drainage, realize the resource, population, environment harmonious and sustainable development.
出处
《贵州师范大学学报（自然科学版）》
CAS
2011年第4期11-15,共5页
Journal of Guizhou Normal University：Natural Sciences
关键词
土地利用
赤水河流域
驱动力
land use
the Chishui River drainage
driving force
