摘要
介绍第二次青藏高原综合科学考察研究任务三生态系统与生态安全专题三“农田生态系统与粮食安全”科学考察背景、总体思路、研究内容、研究目标和取得的阶段性进展.该专题针对青藏高原地区农业生产中逐渐出现的局部农田生态系统结构失稳、功能失衡、地力衰退、作物品质下降、农残渐增等问题,在区域尺度上,从耕地肥力和土壤生物、农田植被、农业生产经营管理、作物产量品质和利用、农业气象条件等方面开展科学考察研究,在青藏高原农田生态系统相关生态环境参数的时空特征、分布规律与作物开发利用等考察研究方面取得阶段性重要进展,可为青藏高原农业生态系统可持续经营管理和粮食安全提供数据及科技支撑.(图1参90)
This study introduces the background, general ideas, content, objectives, and phased progress of the Second Tibetan Plateau Scientific Expedition and Research Program Topic 3: Farmland Ecosystem and Food Security, which is within Task 3 Ecosystem and Ecological Security. Progress of the scientific expedition of Topic 3 has been summarized and the emphases of the expedition in the next stage are presented. Several problems,including structural instability, functional imbalance, soil fertility and crop quality declines, and increasing pesticide residues of local farmland ecosystems that gradually appear in agricultural production in local areas of QinghaiTibet Plateau, on a regional scale, were identified. Scientific research was undertaken examining farmland fertility,soil biology, farmland vegetation, agricultural production and management, crop yield, quality and utilization, and agrometeorological conditions. Significant progress has been made in the scientific exploration of the spatial and temporal characteristics, distribution patterns, crop development, and utilization of the farmland ecosystems in Qinghai-Tibet Plateau, which provides data and scientific and technological support for the sustainable management and food security of agricultural ecosystems in Qinghai-Tibet Plateau.
作者
潘开文
何燕
唐亚伟
沈裕虎
张林
潘志芬
PAN Kaiwen;HE Yan;TANG Yawei;SHEN Yuhu;ZHANG Lin;PAN Zhifen(CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization&Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province,Chengdu Institute of Biology,Chinese Academy of Sciences(CAS),Chengdu 610041,China;Institute of Agriculture,Tibet Academy of Agriculture and Animal Husbandry,Lhasa 850032,China;Northwest Institute of Plateau Biology,Chinese Academy of Sciences,Xining 810008,China)
出处
《应用与环境生物学报》
CAS
CSCD
北大核心
2022年第4期813-821,共9页
Chinese Journal of Applied and Environmental Biology
基金
第二次青藏高原综合科学考察研究项目(2019QZKK0303)资助。
关键词
青藏高原
农田生态系统
粮食安全
生态功能
气候资源
青稞品质
Qinghai-Tibet Plateau
farmland ecosystem
food security
ecological function
climatic resource
highland barley quality
