摘要
文章阐述了黑龙江省农业生态环境的一系列问题。(1)区域环境污染,其中包括"三废"对地表水和地下水的污染,对农业的危害及对大气的污染;(2)水土流失在各市县均有发生;(3)西部土地沙化现象比较严重,面积达47 99hm2,正在发展的沙化土地面积41 82万hm2;(4)松嫩平原土地盐碱化程度高,面积已达199 73万hm2;(5)洪涝灾害对国民经济危害极大,严重威胁农业生产;(6)近年,全省春夏持续高温,干旱土地逐年增多。文章最后论述了农业生态环境建设及地质灾害防治对策。主要包括污染治理;采取工程措施、生物措施,并通过产业结构和提高科技进步等防治水土流失、土地沙化、盐碱化;对旱涝的防治应防汛、抗旱并重;合理优化配置水资源,大力兴修水利,达到除害兴利之目的。
A series of problems of agricultural ecological environment in Heilongjing Province have been introduced in this paper:(1)regional environment pollution. It includes that 'three waste' pollutes water and groundwater. (2) soil erosion. Now the soil erosion area is 1.344×10~7hm^2. There are 145?000 soil erosion ditches. (3)relatively serious desertification in the west. The desertification area is 4.799×10~5hm^2. (4)serious salinization in Songnen Plain. The salinization area is 1.9973×10~6hm^2.(5)Flood disaster harms national economy, threatens agricultural production.(6) Drought land is getting more and more because of the high temprature in spring and summer. In the end, the authors expound agriculture ecological environment construction and control contermeasure of geo-hazard. The control coutermeasurs inclucle:bringing pollution under control; preventing soil erosion, desentification and salinization with engineering measures and biological measures; paying equal attention to preventing food and fighting drought; making rational use of water resources.
出处
《中国地质灾害与防治学报》
CSCD
2004年第2期108-111,共4页
The Chinese Journal of Geological Hazard and Control
关键词
黑龙江省
农业生态环境
地质灾害
防治对策
Heilongjiang Province
agricultural ecological environment
geological hazard
control contermeasure
