资源与生态学报 ›› 2019, Vol. 10 ›› Issue (6): 614-620.DOI: 10.5814/j.issn.1674-764X.2019.06.006

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锡林郭勒草地样带土地承载力研究:基于膳食需求视角

杨婉妮1,2, 甄霖1,2,*(), 罗琦1,2   

  1. 1. 中国科学院地理科学与资源研究所,北京 100101
    2. 中国科学院大学,北京 100049
  • 收稿日期:2019-07-01 接受日期:2019-08-15 出版日期:2019-11-30 发布日期:2019-12-09
  • 通讯作者: 甄霖
  • 作者简介:YANG Wanni, E-mail: yangwn.15b@igsnrr.ac.cn

Land Resource Carrying Capacity in Xilin Gol Grassland Transects: A Perspective on Food Nutritional Demand

YANG Wanni1,2, ZHEN Lin1,2,*(), LUO Qi1,2   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China.
  • Received:2019-07-01 Accepted:2019-08-15 Online:2019-11-30 Published:2019-12-09
  • Contact: ZHEN Lin
  • Supported by:
    The National Natural Science Foundation of China(41671517);The National Key Research and Development Program of China(2016YFC0503700);The Strategic Priority Program of Chinese Academy of Sciences(XDA20010202)

摘要:

粮食安全问题是国民经济社会发展重要问题,从土地资源承载力角度研究区域粮食供给和需求情况,能够为区域资源可持续提供新的借鉴。本研究利用农牧户问卷调查数据、统计数据、土地利用数据等,构建土地资源承载力(LCC)评估框架,针对锡林郭勒草地样带上典型草地牧区、沙地牧区和农牧交错区三个典型区的居民食物供给和需求问题,选取热量、蛋白质和脂肪三个食物营养指标,对土地资源承载力平衡问题进行研究。研究发现:(1)沿锡林郭勒草地样带由北向南食物供给呈现出以肉类和奶类为主,向粮食、蔬菜水果供给为主的转变;(2)沿草地样带由北向南居民食物摄入热量逐渐增多,而蛋白质和脂肪摄入呈现牧区多、农区少的特点;(3)锡林郭勒草地样带上整体土地资源资源承载力处于富余状态,然而典型草地牧区土地承载力高于其余两个典型区。本研究可为区域食物营养可持续发展提供实证参考。

关键词: 锡林郭勒草地样带, 土地资源, 资源环境承载力, 食物营养需求

Abstract:

Food safety is an important issue for the development of the national economy and society. Studying regional food supply and demand from the perspective of land resource carrying capacity can provide new references for regional resource sustainability. This study uses the data from farmer and herdsmen household questionnaires, statistical data, land use data, and other sources to construct a land resource carrying capacity (LCC) assessment framework, targeting the food supply and demand of residents in representative areas, specifically the typical grassland pastoral areas, sandy pastoral areas and agro-pastoral areas on the Xilin Gol grassland transects. The three food nutritional indicators of calories, protein and fat were selected for analyzing the balance of land resource carrying capacity. We found that: 1) Along the Xilin Gol grassland, the main local food supply showed a shift from meat and milk to grains, vegetables and fruits. 2) From north to south along the grassland transects, the calorie intake increased gradually, while the intake of protein and fat was highest in pastoral areas and lowest in agricultural areas. 3) The overall land resource carrying capacity of the Xilin Gol grassland transects was in a surplus state, but the land carrying capacity of typical grassland pastoral area was higher than the two other types of areas. This study provides an empirical reference for the sustainable development of regional food nutrition.

Key words: Xilin Gol Grassland transects, land resource, resource and environment carrying capacity, food nutritional demand