茂兰自然保护区耕地人口承载力研究 |
| |
引用本文: | 熊康宁. 茂兰自然保护区耕地人口承载力研究[J]. 贵州师范大学学报(自然科学版), 1997, 0(4) |
| |
作者姓名: | 熊康宁 |
| |
作者单位: | 贵州师大资源与环境科学系 |
| |
基金项目: | 贵州省“八五”攻关项目 |
| |
摘 要: | 茂兰国家级自然保护区土地总面积22×104ha,耕地640ha,人口8547人,人均耕地0075ha。保护区11个旱作土种(1212ha)粮食生产力可产玉米74714t;35个水稻土种(7763亩,保灌面积3067%)的生产力是375507t,即全区的粮食现实生产力为450221t。扣除应当交的国家定购粮85%,人均净占粮食482kg。按国家小康标准人均占有粮食400kg和温饱标准人均占有粮食350kg来看,人口承载力分别是10299人和11770人,目前人口土地承载有余。但总人口在不断增加,农业人口也在不断增加,而耕地不会增加,如按目前的生产力水平和投入计算,按小康标准,2020年人口将超载;按温饱标准,2040年人口将超载
|
关 键 词: | 耕地,人口承载能力,茂兰自然保护区 |
POPULATION CARRYING CAPACITY OF THE CULTIVATED LAND IN THE MAOLAN NATURAL RESERVE |
| |
Abstract: | The Maolan National Natural Reserve with an area of 22×104 ha in total,contains 640 ha of cultivated land and 8 547 in population.About 99% farmers only occupy 3% of the land,which gives rise to a great conflict between population and land.Potential production of grain at present situation in the natual reserve is 74714 t for maize from 11 types of dry crop land 1212 ha and 3 75507 t for rice from 35 types of rice land 5175 ha 3067% of irregative area),i.e. 450221 t in total.Regarding 85% of purchase by the state,average occupancy of grain per person is 482 kg.According to the state criterion of Xiaokang (middle riches,400 kg/person) and Wenbao (lower riches,350 kg/person),the population carrying capacity of the cultivated land in the natural reserve is respectively 10 299 and 11 770 persons.The pressure is under the capacity at present.However,the population is increasing with unchangable land use and the farmers are also more and more with limited cultivated land.Under the present productive ability and condition,the population will be over the capacity at the Xiaokang in 2 020 and at the Wenbao in 2 040. |
| |
Keywords: | Cultivated land Capacity of population Maolan Natural Reserve |
本文献已被 CNKI 等数据库收录! |
|